River Grades - Rafts vs Kayaks
Anyone know the differences in the two grading systems?
A friend has just come back from South Africa where (as a complete rafting novice) he was running Grade 5. The kayakers supporting the raft all went off to do a Grade 6 run in the afternoon. The numbers seem a bit high to me. Any ideas? Is a grade 6 raft-rapid actually a grade 4/5 kayak-run? Zatt. |
River Grades - Rafts vs Kayaks
ZattleBone wrote:
Anyone know the differences in the two grading systems? A friend has just come back from South Africa where (as a complete rafting novice) he was running Grade 5. The kayakers supporting the raft all went off to do a Grade 6 run in the afternoon. The numbers seem a bit high to me. Any ideas? Is a grade 6 raft-rapid actually a grade 4/5 kayak-run? Having seen a couple of rafting company adverts in different countries and having heard a couple of the raft guides talk to their customers, I got the impression that they overrate the difficulty rather routinely. Of course, they do seem to want to impress their customers... My guess is that helps raise the tip. Then again, there are some raft guides who run some pretty impressive stuff with inexperienced customers, some of the big rapids on the Grand Canyon and Zambezi come to mind. -- Wilko van den Bergh Eindhoven The Netherlands Europe Look at the possibilities, don't worry about the limitations. http://wilko.webzone.ru/ |
River Grades - Rafts vs Kayaks
Hopefully, the river is rated based on it's features, characteristics, and dangers. What craft you are in has no bearing on the river. It doesn't care what you may fall out of. Many novice rafters can safely enjoy a Class (Grade) 4 run, while some novice kayakers may have their hands full on Class 3. That is not a hard and fast rule, but an over simplification. Some runs greatly favor kayaks because of size. Large boats don't always fit where small boats fit. I don't think there are many Class six runs being done routinely. (Wilko, I hope I am correct in assuming that European standards are substantially the same as U.S.?) Just my $.02 (while I try to help breathe some life back into RBP) -Dan On 11 Sep 2003 02:11:48 -0700, (ZattleBone) wrote: Anyone know the differences in the two grading systems? A friend has just come back from South Africa where (as a complete rafting novice) he was running Grade 5. The kayakers supporting the raft all went off to do a Grade 6 run in the afternoon. The numbers seem a bit high to me. Any ideas? Is a grade 6 raft-rapid actually a grade 4/5 kayak-run? Zatt. |
River Grades - Rafts vs Kayaks
Dan Valleskey wrote: I don't think there are many Class six runs being done routinely. Same story here. (Wilko, I hope I am correct in assuming that European standards are substantially the same as U.S.?) From what I've seen in the U.S., I would say so. Maybe the comparison with western U.S. rivers/ratings fits the type of rivers here better, though. -- Wilko van den Bergh Eindhoven The Netherlands Europe Look at the possibilities, don't worry about the limitations. http://wilko.webzone.ru/ |
River Grades - Rafts vs Kayaks
"Wilko" wrote in message news:1fg8b.37557$tK5.4769674@zonnet-reader-1... Dan Valleskey wrote: I don't think there are many Class six runs being done routinely. Same story here. (Wilko, I hope I am correct in assuming that European standards are substantially the same as U.S.?) From what I've seen in the U.S., I would say so. Maybe the comparison with western U.S. rivers/ratings fits the type of rivers here better, though. The interesting thing about western ratings is that there is no numerical classification for 'unrunnable'. Class 10 often is described as "an inexperienced boatman in a good quality boat has less than a 50-50 chance of making it right-side up." I like the 10-step breakdown, too, since it clears up some of that vast grey area between Class III and Class IV on the traditional grading scale. --riverman (and it sounds a lot like Spinal Tap, too.) |
River Grades - Rafts vs Kayaks
Could just be that the locals have decided to make up their own grading
system so that they sound cool, or possibly just lied. There are a few examples of rivers that are not graded on the international scale (Grand Canyon 1-10?) but as far as I know people have converted these to real terms by now. I have seen some discrepancy over raft vs kayak grading when I've been in the US, or at least that is our assumption. Some guidebooks have different grades to others and the best idea we could come up with was that sometimes big stoppers will look more difficult to kayaks and narrow technical sections will look more difficult to rafts. This does not mean that grade 4 in a rafting guide always equates to grade 5 in a kayak or anything, just that where we have noticed differences of opinions it depended on which type of craft would find the rapid easier or harder. It could also be that the river(s) in question were last graded 20 years ago when a lot of stuff was overgraded due to thought of consequences. I fully agree that danger should not be factored into the grade, but almost every guidebook does so at some time, I've even found myself using it in my reasoning and I think it's wrong! There is also the possibility that the outfit is a bit suspect and does regularly run grade 5 with beginners and the guides do head off and run grade 6 every day after work - people doing, or claiming to do, that sort of thing are usually complete dopeheads who have long since forgotten what grading really means anyway. They probably also aren't very useful as safety boaters! There is a fairly good case for expanding the grading system but no-one will actually make a stand and attempt to do it. Anyway Zatt, will you be bringing some beginners to Scotland so I can show them some nice grade 7 stuff???? JIM ZattleBone wrote: Anyone know the differences in the two grading systems? A friend has just come back from South Africa where (as a complete rafting novice) he was running Grade 5. The kayakers supporting the raft all went off to do a Grade 6 run in the afternoon. The numbers seem a bit high to me. Any ideas? Is a grade 6 raft-rapid actually a grade 4/5 kayak-run? Zatt. |
River Grades - Rafts vs Kayaks
"Jim Wallis" wrote in message news:vpjsjb.qgf.ln@Eskdale... There is a fairly good case for expanding the grading system but no-one will actually make a stand and attempt to do it. Jim, Can you imagine the legal liability that would expose you to? Just think, someone gets injured or dies on a river that you had just graded as a Class 3. All of a sudden the plaintiffs are trying to make it out as a Class 6 and of course the victim would never have run it except for the fact that you graded it as something they could do. I think that's why we won't see any attempts at grading things in the future. Steve Holtzman Southern CA |
River Grades - Rafts vs Kayaks
Seakayaker wrote:
Can you imagine the legal liability that would expose you to? Just think, someone gets injured or dies on a river that you had just graded as a Class 3. All of a sudden the plaintiffs are trying to make it out as a Class 6 and of course the victim would never have run it except for the fact that you graded it as something they could do. I think that's why we won't see any attempts at grading things in the future. In a particular lawyer infested bit of the US on a very bad day possibly, but there's been no sign of anyone doing that with climbing guides here which are every bit as open to the same problems. The problem with doing it isn't legal action, but knowing you need to do a good job and not being prepared to make do with a bad one. Pete. -- Peter Clinch University of Dundee Tel 44 1382 660111 ext. 33637 Medical Physics, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net http://www.dundee.ac.uk/~pjclinch/ |
River Grades - Rafts vs Kayaks
I was going to reply but then I thought there was something familiar
about that name - is this the so called lawyer troll that has wrecked r.b.p? It would explain why his post is irrelevant. Seakayaker wrote: "Jim Wallis" wrote in message news:vpjsjb.qgf.ln@Eskdale... There is a fairly good case for expanding the grading system but no-one will actually make a stand and attempt to do it. Jim, Can you imagine the legal liability that would expose you to? Just think, someone gets injured or dies on a river that you had just graded as a Class 3. All of a sudden the plaintiffs are trying to make it out as a Class 6 and of course the victim would never have run it except for the fact that you graded it as something they could do. I think that's why we won't see any attempts at grading things in the future. Steve Holtzman Southern CA |
River Grades - Rafts vs Kayaks
Lets face it the grading thing is not an objective thing but it should
be. The grading system is closed and this is its problem. Either the grade system has to be open ended and so we have grade 7 8 ..And as equipment and skills improve higher or we have to regularly down grade the rapids because they are easier now than when they were originally graded many when the paddlers were in canvas boats. This was tried several years ago but the general boating public ignored it. In reality it does not matter because once you get to what is currently accepted as grade 4 in a kayak then you know what you are doing and can make an informed choice. Grade 5 is what you are aspiring to and once you get to that level then you have no real worries about what the grade is but what the water level is! -- Dave Manby Details of the Coruh river and my book "Many Rivers To Run" at http://www.dmanby.demon.co.uk |
River Grades - Rafts vs Kayaks
riverman wrote:
The interesting thing about western ratings is that there is no numerical classification for 'unrunnable'. Ehm, having only run a few rivers west of the Appalachians, I think that you might mistake Grand Canyon ratings for "western rivers" ratings, Myron. The creeks and rivers I saw up close in Colorado were classified I to VI, noting that my paddling buddy is from Colorado... Class 10 often is described as "an inexperienced boatman in a good quality boat has less than a 50-50 chance of making it right-side up." I know a rapid or two that fits this desciption... big grin I like the 10-step breakdown, too, since it clears up some of that vast grey area between Class III and Class IV on the traditional grading scale. Hmmm, that's one of the few level distinctions that I find very clear. IMO a class III paddler will immediately know when they've hit a IV rapid. For a class IV (and over) paddler, a line in a class III rapid will not be anything to note. (and it sounds a lot like Spinal Tap, too.) :-) -- Wilko van den Bergh Eindhoven The Netherlands Europe Look at the possibilities, don't worry about the limitations. http://wilko.webzone.ru/ |
River Grades - Rafts vs Kayaks
Wilko wrote:
riverman wrote: The interesting thing about western ratings is that there is no numerical classification for 'unrunnable'. Ehm, having only run a few rivers west of the Appalachians, I think that you might mistake Grand Canyon ratings for "western rivers" ratings, Myron. The creeks and rivers I saw up close in Colorado were classified I to VI, noting that my paddling buddy is from Colorado... Myron et al, are refering to the "Deseret Scale", which goes from 1-10 and was applied to the Grand Canyon and several other large volume rivers without difficult rapids. Rumored that 1-10 was for how high the waves were (in feet) in that rapid. --Chris |
River Grades - Rafts vs Kayaks
"Wilko" wrote in message news:8Nq9b.42339$tK5.5098975@zonnet-reader-1... riverman wrote: The interesting thing about western ratings is that there is no numerical classification for 'unrunnable'. Ehm, having only run a few rivers west of the Appalachians, I think that you might mistake Grand Canyon ratings for "western rivers" ratings, Myron. The creeks and rivers I saw up close in Colorado were classified I to VI, noting that my paddling buddy is from Colorado... Hmmm, I guess I missed the gist of your post, then , Wilko. Other than the Grand Canyon scale (which I have never heard anyone but the Utah Mormons, novices or marketers refer to as the 'Deseret Scale') there isn't a separate rating scale for Western Rivers, so you must be referring to how the rivers are rated? I know that because of geology, geography, plant cover and relative age, Western water has a completely different 'feel' than Eastern water, so as a result a Western class 4 can be completely different than an Eastern class 4. And the nature of the boaters and their skills plays a big part in that, too. The western boaters are more familar with open, big water, so 'Carolina Steep Creeks' have been traditionally a challenge. Eastern boaters are used to manuvering through rock gardens, so the traditional '40 foot wave' is a real challenge to them. Also, the familiarity with the types of boats plays a real role. I once heard this summary, which is pretty good: Back when the Americas were settled (from East to West), the natives in the East used canoes as essential transportation, so from the earliest days, everyone in the East had canoes and were taking them through the tightest of spots, rather than take the time to portage. As people got more adventuous, they began running more technical rivers in canoes, and the recreation industry developed to support this, with durable boats and paddling gear, and the right techniques. The western natives, OTOH, did not run their rivers because they didn't take them anywhere they wanted to go, and in many cases the rivers were hard to access. That was, until after WW2, when a surplus of army rafts became available and people started taking them on rivers for recreation. Rafts have never been 'essential transportation'. As a result, eastern rivers are rated for canoes, and eastern boaters have grown up with hard boats as part of their culture for 250 years. Western rivers are rated for rafts, and western boaters have had rafts are part of their culture for 50 years. It wasn't until the mid 70s that the two started to mix: some eastern boaters brought canoes to the west and started running the big and small rivers (hey, *I* even managed to bag a first descent!) and some western boaters brought rafts to the east and started running the narrow rivers. As a result, the very foundations of the east vs. west rating system is different. The boats, the culture surrounding the boats, the 'genetic resonance' of the boaters, and the entire outlook on the style of water is different. Is that what you meant? --riverman |
River Grades - Rafts vs Kayaks
riverman wrote:
As a result, the very foundations of the east vs. west rating system is different. The boats, the culture surrounding the boats, the 'genetic resonance' of the boaters, and the entire outlook on the style of water is different. Is that what you meant? Bingo! :-) From what I've paddled in Europe, and (mostly the eastern part of) the U.S., I got the impression that western U.S. rivers are more like what we have over here. Sure, there are pool and drop as well as more continuous rivers here, and there definately is a big difference in volume between the multitude of rivers and creeks here. In general, I found the rating of the rivers I ran in the east to be quite different from those I ran in Europe. From the experiences of those Eastern U.S. paddlers that I've taken on trips in Europe, I got the impression that they weren't so used to the more continuous nature of the creeks and rivers I took them on. They tended to rate those European creeks/rivers higher than I would, I assume that had to do with the more continuous nature of those streams. -- Wilko van den Bergh Eindhoven The Netherlands Europe Look at the possibilities, don't worry about the limitations. http://wilko.webzone.ru/ |
River Grades - Rafts vs Kayaks
"Wilko" wrote in message news:pwG9b.44887$tK5.5159039@zonnet-reader-1... From what I've paddled in Europe, and (mostly the eastern part of) the U.S., I got the impression that western U.S. rivers are more like what we have over here. Sure, there are pool and drop as well as more continuous rivers here, and there definately is a big difference in volume between the multitude of rivers and creeks here. In general, I found the rating of the rivers I ran in the east to be quite different from those I ran in Europe. From the experiences of those Eastern U.S. paddlers that I've taken on trips in Europe, I got the impression that they weren't so used to the more continuous nature of the creeks and rivers I took them on. They tended to rate those European creeks/rivers higher than I would, I assume that had to do with the more continuous nature of those streams. Hmmm, good observations, and I don't see any simple explanation. However, my experience is that European rivers (if there is such a generic term) are a differnet animal entirely than Eastern or Western water. The eastern US rivers tend to be relatively short and intense, as the Appalacians are an old, narrow mountain belt, and there is often only a few miles between where the water has enough volume to have carved a good bed, and when the rivers dump out onto the piedmont and flatten out with mud bottoms. So, yes, eastern boaters will run a 2-mile stretch of rocky water several times, and call that a 'run'. Several larger rivers (the Hudson, for example) have several play stretches, but mostly because the rivers cut across resistant geology and develop rapids in areas where they could easily be long, class 1-2 stretches instead. Western rivers, OTOH, tend to drain huge drainage basins, and the mountains belts are very wide and relatively young. So the rivers can come down out of the hills already with substantial volume, toss among miles-long stretches of boulders, then canyon out and become long fla****er floats. The whitewater stretches can be VERY continuous (my personal favorite is the dozen-mile long nonstop 'Idaho Class 3' stretch at the top of the MidFork Salmon.), but once the river changes its nature, its a long-term change. European rivers, OTThirdH, are a mix of the two. The mountains are very old and worn down, like the Appalacians, however they are very wide and can support large rivers. The european steep creeks (like the ones in Slovenia) are similar to the Eastern US rivers in nature, but because of the dependable drainage of the Alps, they run more consistently and carry a lot more debris through their drainout. However, because of the intermittent nature of big floods, the rocks are sharp, poorly sorted, and the river bed is relatively immature. So you end up with an eastern-style rocky creek, that runs a western-style length before it changes its nature. I think both eastern and western boaters overrate anything they are unfamiliar with. Calling Hance in the Grand Canyon a '10' is a joke to any eastern boater who can navigate rocks. Calling Magic Falls on the Kennebec a '4-5' is a farce to any western boater who has run the V-wave in Lava. Any US boater who comes to Europe is going to overrate the rapids, until they get used to the continuous and rocky nature of them. I think European boaters see both long runs, and rocky runs, so they might not overrate US rivers quite so easily. I know here in Kinshasa, I have had so many people tell me how the rapids on the outskirts of town here are 'Unrunnable' that I want to puke. Its basically a solid class 5-, with an entrance where you skirt a huge Lava LedgeHole-sized pourover, run a Hance Lookalike wave train, then catch a Niagara Whirlpool-sized eddy. I've run stuff this big in rafts a dozen times with no problem. The stuff downstream is rumored to be worse, but I wonder if its just continuous instead...... --riverman |
River Grades - Rafts vs Kayaks
To get back to the original post. the numbers could be simply correct.Take
the Zambezi, I believe beginners are taken down grade 5 in rafts on the Zambezi and if your safety boater was Alex Nicks then he could well be up for grade 6 after tea! "ZattleBone" wrote in message om... Anyone know the differences in the two grading systems? A friend has just come back from South Africa where (as a complete rafting novice) he was running Grade 5. The kayakers supporting the raft all went off to do a Grade 6 run in the afternoon. The numbers seem a bit high to me. Any ideas? Is a grade 6 raft-rapid actually a grade 4/5 kayak-run? Zatt. |
River Grades - Rafts vs Kayaks
To get back to the original query
Maybe these grades are not that high. take the Zambezi. I believe beginners are regularly taken down grade 5 rapids here and if your safety boater was Alex Nicks then he could well be up for grade 6 after tea ! "ZattleBone" wrote in message om... Anyone know the differences in the two grading systems? A friend has just come back from South Africa where (as a complete rafting novice) he was running Grade 5. The kayakers supporting the raft all went off to do a Grade 6 run in the afternoon. The numbers seem a bit high to me. Any ideas? Is a grade 6 raft-rapid actually a grade 4/5 kayak-run? Zatt. |
River Grades - Rafts vs Kayaks
riverman wrote: European rivers, OTThirdH, are a mix of the two. The mountains are very old and worn down, like the Appalacians, however they are very wide and can support large rivers. The european steep creeks (like the ones in Slovenia) are similar to the Eastern US rivers in nature, but because of the dependable drainage of the Alps, they run more consistently and carry a lot more debris through their drainout. However, because of the intermittent nature of big floods, the rocks are sharp, poorly sorted, and the river bed is relatively immature. So you end up with an eastern-style rocky creek, that runs a western-style length before it changes its nature. Funny that you use the Slovenian creeks as an example, I spent almost two weeks at the end of August paddling there. Then again, having come used to the difficulty levels of those stretches, because I ran them more than a dozen times this year, I also find that I tend to lessen the perceived difficulty in my mind. That makes it difficult to rate them more or less objectively, especially when explaining them to first timers. I think both eastern and western boaters overrate anything they are unfamiliar with. Calling Hance in the Grand Canyon a '10' is a joke to any eastern boater who can navigate rocks. Calling Magic Falls on the Kennebec a '4-5' is a farce to any western boater who has run the V-wave in Lava. Any US boater who comes to Europe is going to overrate the rapids, until they get used to the continuous and rocky nature of them. I think European boaters see both long runs, and rocky runs, so they might not overrate US rivers quite so easily. Then again, there might be such a thing as big water and huge water (Niagara Gorge, Zambezi). I haven't seen any of them up close, but just watching the videos gives me an uneasy feeling in my stomach. Again, not being used to that kind of water influences my perception of the difficulties involved. I know here in Kinshasa, I have had so many people tell me how the rapids on the outskirts of town here are 'Unrunnable' that I want to puke. Its basically a solid class 5-, with an entrance where you skirt a huge Lava LedgeHole-sized pourover, run a Hance Lookalike wave train, then catch a Niagara Whirlpool-sized eddy. I've run stuff this big in rafts a dozen times with no problem. The stuff downstream is rumored to be worse, but I wonder if its just continuous instead...... Sounds like you need to get a couple of rafters and their equipment over there... :-) -- Wilko van den Bergh Eindhoven The Netherlands Europe Look at the possibilities, don't worry about the limitations. http://wilko.webzone.ru/ |
River Grades - Rafts vs Kayaks
One of the biggest differences between Europe and the USA in grades is
the description that goes with it. British paddlers are notorious at understating the river - not under-grading - but understating it. Brits may well tell you - with little knowledge of your ability maybe 'You'll be OK its only a grade IV ' whereas in the states you are likely to be told 'Its graded IV but the crux has a nasty undercut........ ' The first time I ran the Gauley I was very cautious to begin with - till I teamed up with a bunch of other kayak paddlers (I was travelling on my own) - I was expecting run like the bottom end of the Ubaye whereas it turned out to be more like the racecourse section in my memories (1987) In message , Stuart Miller writes To get back to the original query Maybe these grades are not that high. take the Zambezi. I believe beginners are regularly taken down grade 5 rapids here and if your safety boater was Alex Nicks then he could well be up for grade 6 after tea ! "ZattleBone" wrote in message . com... Anyone know the differences in the two grading systems? A friend has just come back from South Africa where (as a complete rafting novice) he was running Grade 5. The kayakers supporting the raft all went off to do a Grade 6 run in the afternoon. The numbers seem a bit high to me. Any ideas? Is a grade 6 raft-rapid actually a grade 4/5 kayak-run? Zatt. -- Dave Manby Details of the Coruh river and my book "Many Rivers To Run" at http://www.dmanby.demon.co.uk |
River Grades - Rafts vs Kayaks
Excellent debate guys!
I'm rather intrigued by the eastern US vs western US vs Europe thing. I've only paddled in Europe and the Western US and it has struck me that most regions have a few rivers of each type! If I was going to generalise I'd have to point out that Britain is completely different to all of the above :-) Take for example a couple of Californian classics like Dry Meadow Creek and Brush Creek (have run the latter, only looked at the former) - they really are not a lot different in character to some of Scotland's granite gorge rivers, like the Meig and tributaries of the Etive. Scotland is a bit short of high volume runs, but in a good spate rivers like the Orchy and Spean develop a character like the Inn, or the Skykomish, not as big but similar in feel! I thought boating in the volcanic gorges of the WF Hood and White Salmon was pretty special, and then within a month of coming home I discovered that some of the Clyde has a similar geology, except much older and more weathered so it takes more looking for, and is actually nowhere near as spectacular! Comparisons aside, Britain is different, it's mainly different because it doesn't have a snowpack so all rivers are rainfall fed, which generally means we have to do them in the winter - that can really affect your optimism for a certain grade! Then again the US is different, I don't know a Tuolumne in Europe for example (maybe I haven't looked hard enough?), the mountains are higher and as riverman says the environment is younger, and in many cases less spoilt / more wild which can add a lot both to enjoyment and consideration of what you're going to do if it all goes wrong! The closest thing to the T would be the Verdon canyon, totally different in character (limestone gorge with siphons undercuts etc..) but similar length and commitment, and both are pool drop although most of the T's drops are easier. Anyway I think I digressed several times there! I've learned to cope with a 6 grade system. I actually prefer the big volume runs of the Western US (although some could do with the pools shortening) and I don't have much problem matching up grades for very different styles of river. However there are limitations, lets go back to brush creek again shall we? It's graded 5, it has some largeish drops, some blind chutes and a few falls with rocks at the bottom that you can't really inspect, but is it really as hard as grade 5? Probably not if I can paddle it in a playboat first time on it, but it is harder than a 4, you can't obviously scout everything from the boat and certainly can't see routes down everything. The same thing with the Meig and various "rocky ditches" over here, there is no sustained difficulty, there are some very technical moves sometimes potential for getting badly hurt (lets keep grading objective?) and occasionally a leap of faith is required (I love leading a competent grade 4 boater down the Meig for their first time - you want me to do what?). Clearly some things are outside of the boundaries of our 6 tier system - I don't really know the way forward, adding higher grades as people do harder stuff is one way but it doesn't address the differences in the nature of the runs that we seem to agree is so important. Perhaps parallel grading systems are required where some note about the nature of the run can help with understanding what a grade means to you? Here is an example, the St Joe (ID) at 8000 cfs, graded 4 for that flow. It's not a terribly wide river so feels pretty huge with that flow, it looked alright from the road so we got on. After a short while low visibility (mainly due to the gradient, but partly due to mist) had us climbing out to look at what might be a line of holes. From above it is clearly a grade 2 wave train with the peaks just starting to break a bit. Did that a couple more times, one bit was probably grade 3 and then reached tumbledown falls. Yes grade 4 I guess, certainly wouldn't have been very happy trying to read it from the river but inspection revealed it be a 2 move rapid - launch, head left of centre on obvious green wave, then cut hard right using a boily eddyline to take you onto the tongue that avoids the ledge completely (OK perhaps the level was way above what the grade was for?). After that we had decided that we were happy with the feel of it having run the hardest part and finished it as we would have started had it not been for the idea that there was going to be some grade 4 round every corner (i.e. picking the biggest wavetrains to wavewheel down). Ok so I'm partly arguing with the grade here, it is now more common to grade for the average difficulty not the hardest fall, but that aside had we known a bit more about the character (big flushy water) (and yes we should have been able to work it out from the road, but everything looks smaller from the road....) we probably wouldn't have been looking out for an Orchy style grade 4 ledge drop that gets harder in high flows (yes I know some of the Orchy drops get easier) and would have played even harder on the first half :-) Do I make some sense? JIM PS: everything I've run in the West (CA, OR, WA) has been graded on a scale of 1-6! riverman wrote: "Wilko" wrote in message news:pwG9b.44887$tK5.5159039@zonnet-reader-1... From what I've paddled in Europe, and (mostly the eastern part of) the U.S., I got the impression that western U.S. rivers are more like what we have over here. Sure, there are pool and drop as well as more continuous rivers here, and there definately is a big difference in volume between the multitude of rivers and creeks here. In general, I found the rating of the rivers I ran in the east to be quite different from those I ran in Europe. From the experiences of those Eastern U.S. paddlers that I've taken on trips in Europe, I got the impression that they weren't so used to the more continuous nature of the creeks and rivers I took them on. They tended to rate those European creeks/rivers higher than I would, I assume that had to do with the more continuous nature of those streams. Hmmm, good observations, and I don't see any simple explanation. However, my experience is that European rivers (if there is such a generic term) are a differnet animal entirely than Eastern or Western water. The eastern US rivers tend to be relatively short and intense, as the Appalacians are an old, narrow mountain belt, and there is often only a few miles between where the water has enough volume to have carved a good bed, and when the rivers dump out onto the piedmont and flatten out with mud bottoms. So, yes, eastern boaters will run a 2-mile stretch of rocky water several times, and call that a 'run'. Several larger rivers (the Hudson, for example) have several play stretches, but mostly because the rivers cut across resistant geology and develop rapids in areas where they could easily be long, class 1-2 stretches instead. Western rivers, OTOH, tend to drain huge drainage basins, and the mountains belts are very wide and relatively young. So the rivers can come down out of the hills already with substantial volume, toss among miles-long stretches of boulders, then canyon out and become long fla****er floats. The whitewater stretches can be VERY continuous (my personal favorite is the dozen-mile long nonstop 'Idaho Class 3' stretch at the top of the MidFork Salmon.), but once the river changes its nature, its a long-term change. European rivers, OTThirdH, are a mix of the two. The mountains are very old and worn down, like the Appalacians, however they are very wide and can support large rivers. The european steep creeks (like the ones in Slovenia) are similar to the Eastern US rivers in nature, but because of the dependable drainage of the Alps, they run more consistently and carry a lot more debris through their drainout. However, because of the intermittent nature of big floods, the rocks are sharp, poorly sorted, and the river bed is relatively immature. So you end up with an eastern-style rocky creek, that runs a western-style length before it changes its nature. I think both eastern and western boaters overrate anything they are unfamiliar with. Calling Hance in the Grand Canyon a '10' is a joke to any eastern boater who can navigate rocks. Calling Magic Falls on the Kennebec a '4-5' is a farce to any western boater who has run the V-wave in Lava. Any US boater who comes to Europe is going to overrate the rapids, until they get used to the continuous and rocky nature of them. I think European boaters see both long runs, and rocky runs, so they might not overrate US rivers quite so easily. I know here in Kinshasa, I have had so many people tell me how the rapids on the outskirts of town here are 'Unrunnable' that I want to puke. Its basically a solid class 5-, with an entrance where you skirt a huge Lava LedgeHole-sized pourover, run a Hance Lookalike wave train, then catch a Niagara Whirlpool-sized eddy. I've run stuff this big in rafts a dozen times with no problem. The stuff downstream is rumored to be worse, but I wonder if its just continuous instead...... --riverman |
River Grades - Rafts vs Kayaks
"riverman" typed
The interesting thing about western ratings is that there is no numerical classification for 'unrunnable'. Class 10 often is described as "an inexperienced boatman in a good quality boat has less than a 50-50 chance of making it right-side up." I like the 10-step breakdown, too, since it clears up some of that vast grey area between Class III and Class IV on the traditional grading scale. Myron, I think you bin away from home to long. As far as I know there is no "western" 10-step scale in the US any longer. The only 10-step scale I know about is the "Grand Canyon Scale", applied only on the Grand Canyon, as an historical artifact. The Class 10 you describe could only conceivably apply to rafts and dories (only guessing about the latter, since I have no experience with dories). I would say that, in the 6-step International Scale of River Difficulty, which we and the Europeans try to follow, an inexperienced kayaker or canoeist in a good quality boat would have less than 50% chance of making it through a Class III rapid right-side up. (In fact, the ratings map very closely to skill levels: I-Beginner, II-Novice, III-Intermediate, IV-Advanced, V-Expert, VI-God). Which brings up a problem, and perhaps the reason the 10-step scale has fallen into disuse: if the rating of the rapid must be changed to suit the craft, then you are not actually rating the rapid, *per se*, you are rating the rapid/craft combination. By contemporary thinking, the difficulty of a rapid should be intrinsic to the rapid, measured by objective criteria, and irrelevant to the nature of any craft that might attempt the rapid. I think. -Richard, His Kanubic Travesty -- ================================================== ==================== Richard Hopley, Winston-Salem, NC, USA rhopley[at]earthlink[dot]net 1-301-775-0471 Nothing really matters except Boats, Sex, and Rock'n'Roll. rhople[at]wfubmc[dot]edu 1-336-713-5077 OK, OK; computer programming for scientific research also matters. ================================================== ==================== |
River Grades - Rafts vs Kayaks
Which brings up a problem, and perhaps the reason the 10-step scale has fallen into disuse: if the rating of the rapid must be changed to suit the craft, then you are not actually rating the rapid, *per se*, you are rating the rapid/craft combination. By contemporary thinking, the difficulty of a rapid should be intrinsic to the rapid, measured by objective criteria, and irrelevant to the nature of any craft that might attempt the rapid. I think we should rate rapids based on a combination of both the rapid, the boat, and the paddler. For instance, there is a rapid, that shall remain nameless due to embarrassment, that flips me every time. It's "easier" than many other rapids I paddle, and I've done it a few dozen times, and yet, it flips me. I think it should be at least a V. Geoff |
River Grades - Rafts vs Kayaks
ZattleBone wrote: A friend has just come back from South Africa where (as a complete rafting novice) he was running Grade 5. The kayakers supporting the raft all went off to do a Grade 6 run in the afternoon. The numbers seem a bit high to me. The original poster never followed up, so we don't know which rivers these were. The Cassady/Dunlap book _World_Whitewater_ describes only two difficult runs in South Africa: Orange River (Senqu) gorge below Augrabies Falls, 8 km, class 4+ P Tugela River, Colenso to Causeway Bridge, 64 km, class 4 P Perhaps the "P" (for portage) is now being run and is class 5 or 5+. In my opinion, if kayakers are regularly running a class 6 drop now, either it was overrated, or has changed to class 5. |
River Grades - Rafts vs Kayaks
"Wilko" wrote in message news:FiI9b.44905$tK5.5172590@zonnet-reader-1... I know here in Kinshasa, I have had so many people tell me how the rapids on the outskirts of town here are 'Unrunnable' that I want to puke. Its basically a solid class 5-, with an entrance where you skirt a huge Lava LedgeHole-sized pourover, run a Hance Lookalike wave train, then catch a Niagara Whirlpool-sized eddy. I've run stuff this big in rafts a dozen times with no problem. The stuff downstream is rumored to be worse, but I wonder if its just continuous instead...... Sounds like you need to get a couple of rafters and their equipment over there... :-) Not that I haven't thought about that!! Some Belgian (or French) guys tried to run the gorge about 10 years ago, and the story says that they disappeared without a trace. Not that I doubt that some folks died trying it, but the 'disappeared without a trace' part sounds like my information sources are uneducated. And I know that boating technology has come a long way in 10 years. Without seeing the actual gorge (thats in the works via charter flight) I can't say for sure, but my gut feeling is that the gorge is actually runnable, and its only a matter of logistics and equipment. I'm really looking forward to the flyover. I tell you what, if some posters (or lurkers) want to start planning an epic expedition, I'm ready to participate. We'd need some safety kayakers. --riverman |
River Grades - Rafts vs Kayaks
"Oci-One Kanubi" wrote in message m... "riverman" typed Which brings up a problem, and perhaps the reason the 10-step scale has fallen into disuse: if the rating of the rapid must be changed to suit the craft, then you are not actually rating the rapid, *per se*, you are rating the rapid/craft combination. By contemporary thinking, the difficulty of a rapid should be intrinsic to the rapid, measured by objective criteria, and irrelevant to the nature of any craft that might attempt the rapid. I think. Well, there you go thinking again. We've warned you about that. :-) Anytime a rating description uses a boat, then its impossible for it NOT to be a rapid/craft combination. The Class 10 explanation "An inexperienced boatman in a dependable craft..." actually implies a rapid/craft/boatman skill connection. However, I think these are all interpretations of the river itself, and the craft/boatman connection comes out in the description only. Exactly like what happens when you try to translate from one language to another. Maybe "petit amie" translates exactly to "little friend" in english, but any french-speaker know that it really means the equivalent of 'girlfriend'. I say "the equavalent" because that is an English translation of a French word. The actual word, to any Frenchman, is "petit amie". Saying "a rapid is Class III" means exactly the same thing to a canoeist, a doryman, a kayaker, a paddleboater and a swimmer; the rapid is Class III. How they translate that to a flatlander varies according to the boatman, the craft, etc. The problem is that we keep trying to translate river rating systems, even to other boatmen, when we really need to just learn to think in them. --riverman |
River Grades - Rafts vs Kayaks
riverman wrote:
Well, there you go thinking again. We've warned you about that. :-) Exactly like what happens when you try to translate from one language to another. Maybe "petit amie" translates exactly to "little friend" in english, but any french-speaker know that it really means the equivalent of 'girlfriend'. I say "the equavalent" because that is an English translation of a French word. The actual word, to any Frenchman, is "petit amie". Oh my, now you're getting on a slippery slope: with all the languages being spoken by the posters on paddling forums, even those who share a common language (i.e. English) can get confused by the use of that language by other native speakers. I remember an incident where a British paddler told a U.S. paddler who just had a bad experience to get ****ed. The U.S. paddler took that as to get mad, even though the advise of the first person was to get completely drunk... Saying "a rapid is Class III" means exactly the same thing to a canoeist, a doryman, a kayaker, a paddleboater and a swimmer; the rapid is Class III. How they translate that to a flatlander varies according to the boatman, the craft, etc. The problem is that we keep trying to translate river rating systems, even to other boatmen, when we really need to just learn to think in them. When I first started paddling with open boaters in the U.S., I recognised their ratings of rapids. What baffled me was that their lines seemed to be so much different than mine! If I rate a rapid, I take a "virtual" line through a rapid in a kayak and I do so in the assumption that it's the easiest route down. It's often possible to run harder lines in that same rapid, but that's not all that interesting for rating it, IMO. Now here come these open boaters who run something unknown to me, leading. I follow them blindly, faithfully, and get hammered in some holes! A good lesson from those trips is to pick my own line, but taking their remarks about possible dangers at heart! :-) The best open boater's line through a rapid isn't always the best kayaker's line. -- Wilko van den Bergh Eindhoven The Netherlands Europe Look at the possibilities, don't worry about the limitations. http://wilko.webzone.ru/ |
River Grades - Rafts vs Kayaks
Dave Manby wrote:
One of the biggest differences between Europe and the USA in grades is the description that goes with it. British paddlers are notorious at understating the river - not under-grading - but understating it. Brits may well tell you - with little knowledge of your ability maybe 'You'll be OK its only a grade IV ' whereas in the states you are likely to be told 'Its graded IV but the crux has a nasty undercut........ ' Thinking about how we paddled stuff in Europe with a mixed U.S.-Euro group, I was surprised by how often the danger factor was seemingly seamlessly integrated by the U.S. paddlers in their rating of a rapid we were looking at. We looked at the difficulty of staying on the line, and we noted the dangers associated with messing up there. The first time I ran the Gauley I was very cautious to begin with - till I teamed up with a bunch of other kayak paddlers (I was travelling on my own) - I was expecting run like the bottom end of the Ubaye whereas it turned out to be more like the racecourse section in my memories (1987) Ditto experience here. The only difference in my first Gauley run was that someone had told me that we would run the entire upper-middle-lower stretch, without me knowing that it was a marathon length (40+ km) trip! For someone who's used to paddling moving water, all those quiet floats in between the big rapids take up an extraordinary amount of energy, especially in the hot weather we had that day! -- Wilko van den Bergh Eindhoven The Netherlands Europe Look at the possibilities, don't worry about the limitations. http://wilko.webzone.ru/ |
River Grades - Rafts vs Kayaks
Geoff Jennings wrote:
I think we should rate rapids based on a combination of both the rapid, the boat, and the paddler. For instance, there is a rapid, that shall remain nameless due to embarrassment, that flips me every time. It's "easier" than many other rapids I paddle, and I've done it a few dozen times, and yet, it flips me. I think it should be at least a V. big grin Come to think of it, I know a rapid which my GF refuses to run, because she's "not sure that she's good enough". She accidentally ran it several years ago, acing it. Now that she's progressed several classes and finds it well within her ability, she seems to find new excuses not to run it. Funny thing is that she runs much harder stuff everywhere else, just not that one rapid. -- Wilko van den Bergh Eindhoven The Netherlands Europe Look at the possibilities, don't worry about the limitations. http://wilko.webzone.ru/ |
River Grades - Rafts vs Kayaks
"Wilko" wrote in message news:dKX9b.44958$tK5.5233861@zonnet-reader-1... riverman wrote: Well, there you go thinking again. We've warned you about that. :-) Exactly like what happens when you try to translate from one language to another. Maybe "petit amie" translates exactly to "little friend" in english, but any french-speaker know that it really means the equivalent of 'girlfriend'. I say "the equavalent" because that is an English translation of a French word. The actual word, to any Frenchman, is "petit amie". Oh my, now you're getting on a slippery slope: with all the languages being spoken by the posters on paddling forums, even those who share a common language (i.e. English) can get confused by the use of that language by other native speakers. Too true, which highlights my statement that we all need to "think in River Grades, not in translations of River Grades." When someone says 'its a class 4', everyone in every boat, every country, every experience level should be visualizing the same type of difficulty. Then they can each determine for themselves if they can run it, in the boat they currently are sitting in. But the rating is a property of the rapid, not of the boater, boat or skill. When I first started paddling with open boaters in the U.S., I recognised their ratings of rapids. What baffled me was that their lines seemed to be so much different than mine! If I rate a rapid, I take a "virtual" line through a rapid in a kayak and I do so in the assumption that it's the easiest route down. It's often possible to run harder lines in that same rapid, but that's not all that interesting for rating it, IMO. Which brings us to the REAL question: is a rating for a rapid, or for a line? I think that it should be for the line, exactly how climbers rate climbs, not mountains. Saying "Zungo Rapids" is a IV could mean several things: the easiest run through is a IV, the most common route is a IV, or the 'average' route is a IV. These have vastly different ramifications, so instead, it would be wise to say "the popular route down the middle is a IV, the sneak route on the left is a II, and there's a class V run if you go down the right." I think most boaters talk to each other that way all the time, but the guidebooks seem out of synch. And open boaters will alway overrate rapids. Its just too damn embarassing to be that scared and wet after a class II rapid! It must have been class IV... Mary had a post several years ago about swimming a class III, and it really highlighted how people overrate rapids. I'll see if I can find it. --riverman |
River Grades - Rafts vs Kayaks
Dave Manby writes:
One of the biggest differences between Europe and the USA in grades is the description that goes with it. British paddlers are notorious at understating the river - not under-grading - but understating it. Brits may well tell you - with little knowledge of your ability maybe 'You'll be OK its only a grade IV ' whereas in the states you are likely to be told 'Its graded IV but the crux has a nasty undercut........ ' Hee! My limited experience leads me to believe that that's a Brit thing indeed, culturally, and not just limited to rivers. I'm reminded of that bit from the movie "Casino Royale" when the shooting starts and the American and Chinese and Russian generals are going nuts and screaming on the phone, and the British general is saying, "Em, Pernilla? I'm afraid I won't be home for tea. Bit of a war's broken out!" Ah yes, fond memories of the Sun Kosi and Rob Hind saying, "Bit of a class II coming up, nothing but a few waves really..." Or Green Slime saying, "The next rapid? Dunno, really...can't be much of anything, can it?" -- :::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::::::::::::: Mary Malmros Some days you're the windshield, Other days you're the bug. |
River Grades - Rafts vs Kayaks
"Geoff Jennings" typed:
[snip hypothesis] I think we should rate rapids based on a combination of both the rapid, the boat, and the paddler. For instance, there is a rapid, that shall remain nameless due to embarrassment, that flips me every time. It's "easier" than many other rapids I paddle, and I've done it a few dozen times, and yet, it flips me. I think it should be at least a V. This, Geoff, seems like an elementary problem in physics. Get one of yer grad students on it. -Richard, His Kanubic Travesty -- ================================================== ==================== Richard Hopley, Winston-Salem, NC, USA rhopley[at]earthlink[dot]net 1-301-775-0471 Nothing really matters except Boats, Sex, and Rock'n'Roll. rhople[at]wfubmc[dot]edu 1-336-713-5077 OK, OK; computer programming for scientific research also matters. ================================================== ==================== |
River Grades - Rafts vs Kayaks
riverman wrote:
Which brings us to the REAL question: is a rating for a rapid, or for a line? I think that it should be for the line, exactly how climbers rate climbs, not mountains. Saying "Zungo Rapids" is a IV could mean several things: the easiest run through is a IV, the most common route is a IV, or the 'average' route is a IV. These have vastly different ramifications, so instead, it would be wise to say "the popular route down the middle is a IV, the sneak route on the left is a II, and there's a class V run if you go down the right." I think most boaters talk to each other that way all the time, but the guidebooks seem out of synch. That's something we don't often have to worry about in Britain, most of our rapids only have one line on those terms. That is to say you can hit the same features in a variety of ways or places but mostly they are either riverwide, or the difficulty doesn't change across the river :-) When we talk about good or bad lines, we are normally talking about those few inches that make a difference between styling and hurting! Just thinking about some of the multi-line rapids over here, and almost all are clearly described as such in any existing guides. Orchy chicken chute: 3 left 4 right and centre, Tyne chicken chute: 2 left 4 centre 3 right, wow I can't easily think of any others where different routes have different grades and I think I just noticed another clue in the names of the ones that do :-) Now different grades at different levels always amuses me, I like the way that on the Orchy some rapids are harder at high flows and some are easier :-) JIM |
River Grades - Rafts vs Kayaks
I always liked the way of describing grades as
grade 1 take the mother in law grade 2 take the girlfriend grade 3 take the wife grade 4 take the mistress grade 5 take the photographs grade 6 take the mother-in-law Change to suit your sex old joke I know but someone might not have heard it -- Dave Manby Details of the Coruh river and my book "Many Rivers To Run" at http://www.dmanby.demon.co.uk |
River Grades - Rafts vs Kayaks
snipped
Ah yes, fond memories of the Sun Kosi and Rob Hind saying, "Bit of a class II coming up, nothing but a few waves really..." Or Green Slime saying, "The next rapid? Dunno, really...can't be much of anything, can it?" Many years of paddling with slime this is incredibly true to me. I paddled in BC with him and he could remember almost every twist in the road to get to the put in, he had paddled there a couple of years earlier, but on the river he could not recall a single rapid till the bottom of the run and then he would say "Oh yeah I remember that run, I'm sure the take out is just round the next bend"! -- Dave Manby Details of the Coruh river and my book "Many Rivers To Run" at http://www.dmanby.demon.co.uk |
River Grades - Rafts vs Kayaks
Dave Manby writes:
I always liked the way of describing grades as grade 1 take the mother in law grade 2 take the girlfriend grade 3 take the wife grade 4 take the mistress grade 5 take the photographs grade 6 take the mother-in-law Change to suit your sex Not sure that'll work; women might have intentions toward members of the opposite sex that go beyond either wanting to impress them or wanting to kill them. Just guessing... -- :::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::::::::::::: Mary Malmros Some days you're the windshield, Other days you're the bug. |
River Grades - Rafts vs Kayaks
Having walked off high-flood 5's on winter N CA water - never along the road
(can you spell "dragging boats up 200 foot cliffs with throw ropes and/or walking miles in wet tennies in the rain across hill country farmers meadows dragging your boat behind you "). I concluded that I was a true dolt, since I let it happen more than once a year. Good exercise though. And we were always so happy to be out of the river. Then, of course, there were the spring and summer shallow exploratory 2's that turned into rocky 5's and impassible 6's. "No, let's scratch that one off the possible list." "Nice day, though." "Lovely boat hike." The lesson: take good comrades along. John Adams "Dave Manby" wrote in message ... I always liked the way of describing grades as grade 1 take the mother in law grade 2 take the girlfriend grade 3 take the wife grade 4 take the mistress grade 5 take the photographs grade 6 take the mother-in-law Change to suit your sex old joke I know but someone might not have heard it -- Dave Manby Details of the Coruh river and my book "Many Rivers To Run" at http://www.dmanby.demon.co.uk |
River Grades - Rafts vs Kayaks
John Q Adams wrote:
Then, of course, there were the spring and summer shallow exploratory 2's that turned into rocky 5's and impassible 6's. "No, let's scratch that one off the possible list." "Nice day, though." "Lovely boat hike." The lesson: take good comrades along. Sounds more like you need to take *strong* comrades along... ;-) I've climbed out of a gorge once when I spent more time in my new playboat being vertical than horizontal. Taught me a good lesson about trimming before paddling... :-) -- Wilko van den Bergh Eindhoven The Netherlands Europe Look at the possibilities, don't worry about the limitations. http://wilko.webzone.ru/ |
River Grades - Rafts vs Kayaks
In message , Mary Malmros
writes Dave Manby writes: I always liked the way of describing grades as grade 1 take the mother in law grade 2 take the girlfriend grade 3 take the wife grade 4 take the mistress grade 5 take the photographs grade 6 take the mother-in-law Change to suit your sex Not sure that'll work; women might have intentions toward members of the opposite sex that go beyond either wanting to impress them or wanting to kill them. Just guessing... Joyce Mckinney has just returned to the radio station I listen to, as a subject of conversation, she was the woman who kidnapped a Mormon missionary and chained him to her bed and had her wicked way with him. In the trail she came up with the immortal line -'I would have skied down mount Everest naked with a rose between my teeth for him' - such was her infatuation! -- Dave Manby Details of the Coruh river and my book "Many Rivers To Run" at http://www.dmanby.demon.co.uk |
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