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Fuel consumption?
How much fuel should I carry if I want to be assured of motoring (in
case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA -- Scott Vernon Plowville Pa _/)__/)_/)_ |
Small yanmar guestimate of 1/2 gallon an hour, make maybe 5 knots...mmmmm
lets see 12 gallons good for 24 hrs, about 120 NM range.... I think you can go 8 hours and maybe 50 miles if not too much bad stuff happens....thats how I would figure it and then maybe you can get back where you started. "Scott Vernon" wrote in message ... How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA -- Scott Vernon Plowville Pa _/)__/)_/)_ |
12 gallons
Scout "Scott Vernon" wrote in message ... How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA -- Scott Vernon Plowville Pa _/)__/)_/)_ |
On Mon, 20 Sep 2004 22:43:15 -0400, "Scott Vernon"
wrote this crap: How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA Depends on your speed. If you motor at 5 kts., you need enough fuel for about 20 hours of motoring. I use about one gal. per hour. So I'd need another 8 gals. Pathetic Earthlings! No one can save you now! |
You must show your work!
Scotty "Scout" wrote in message ... 12 gallons Scout "Scott Vernon" wrote in message ... How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA -- Scott Vernon Plowville Pa _/)__/)_/)_ |
"Horvath" wrote in message ... On Mon, 20 Sep 2004 22:43:15 -0400, "Scott Vernon" wrote this crap: How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA Depends on your speed. If you motor at 5 kts., you need enough fuel for about 20 hours of motoring. I use about one gal. per hour. So I'd need another 8 gals. Like to maintain a 4.5 avg. speed. Isn't one gal/hr. rather high? Scotty |
Sounds good. I'd rather not carry extra fuel, but I do have a pair of
3 gallon jugs that are compact size. -- Scott Vernon Plowville Pa _/)__/)_/)_ "Greg Parks" wrote in message news:1095743039.cJ3YK5vBBSfWAswY38N+RA@teranews... Small yanmar guestimate of 1/2 gallon an hour, make maybe 5 knots...mmmmm lets see 12 gallons good for 24 hrs, about 120 NM range.... I think you can go 8 hours and maybe 50 miles if not too much bad stuff happens....thats how I would figure it and then maybe you can get back where you started. "Scott Vernon" wrote in message ... How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA -- Scott Vernon Plowville Pa _/)__/)_/)_ |
Depends on your speed. If you motor at 5 kts., you need enough fuel
for about 20 hours of motoring. I use about one gal. per hour. So I'd need another 8 gals. Scott Vernon wrote: Like to maintain a 4.5 avg. speed. Isn't one gal/hr. rather high? Sounds like it to me. I'd guesstimate abouot a third to 1/2 gph. IMHO you should bring along 6 extra gallons, thus extending your range by 50%. Especially since you already have the two 3 gallon jugs ;) Fresh Breezes- Doug King |
Scot,
My 2cylinder Universal (18 hp approx) does 6 knots an hour on a little over 1 Quart. At 4/5 knots, if not bucking a tide or a stiff hedwind, I'd say you'd need about about 26 quarts or 4 Gals. What is your motoring range for your boat with the 12 Gal tank? Should be in your Sps? I'd say that they gave you a 250 mile cruising range with power Ole Thom |
My 2cyl 20HP Albin diesel will push my 31'6" 6 tons longkeeler at 4.3
knots using one liter per hour at about half max rev in flat water. That would indicate that you could do the same or better than 3.8x4.3 = 16.3 mil per gallon. 12 galons should give arround 190 nautical miles if you run the engine at the most economical speed, probably 4-4.5 knots if your bottom and prop are clean. Peter S/Y Anicula "Thom Stewart" skrev i en meddelelse ... Scot, My 2cylinder Universal (18 hp approx) does 6 knots an hour on a little over 1 Quart. At 4/5 knots, if not bucking a tide or a stiff hedwind, I'd say you'd need about about 26 quarts or 4 Gals. What is your motoring range for your boat with the 12 Gal tank? Should be in your Sps? I'd say that they gave you a 250 mile cruising range with power Ole Thom |
On Tue, 21 Sep 2004 07:22:46 -0400, "Scott Vernon"
wrote this crap: Depends on your speed. If you motor at 5 kts., you need enough fuel for about 20 hours of motoring. I use about one gal. per hour. So I'd need another 8 gals. Like to maintain a 4.5 avg. speed. Isn't one gal/hr. rather high? I got a big boat. Pathetic Earthlings! No one can save you now! |
then I withdraw my answer.
Scout "Scott Vernon" wrote in message ... You must show your work! Scotty "Scout" wrote in message ... 12 gallons Scout "Scott Vernon" wrote in message ... How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA -- Scott Vernon Plowville Pa _/)__/)_/)_ |
"Scott Vernon" wrote in message ... How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA I have done 75 miles using about 7 European gallons on flat calm. US gallons are about 10% smaller. Your tank should be big enough, but I'd carry a couple of extra gallons just in case. Regards Donal -- |
"Donal" wrote I have done 75 miles using about 7 European gallons on flat calm. Doesn't help any, Donut. Where am I going to find Euro gallons over here? Scotty |
"DSK" wrote in message ... Depends on your speed. If you motor at 5 kts., you need enough fuel for about 20 hours of motoring. I use about one gal. per hour. So I'd need another 8 gals. Scott Vernon wrote: Like to maintain a 4.5 avg. speed. Isn't one gal/hr. rather high? Sounds like it to me. I'd guesstimate abouot a third to 1/2 gph. IMHO you should bring along 6 extra gallons, thus extending your range by 50%. Especially since you already have the two 3 gallon jugs ;) Ok, now....where should I put them? Scotty |
"Thom Stewart" wrote in message ... Scot, My 2cylinder Universal (18 hp approx) does 6 knots an hour on a little over 1 Quart. At 4/5 knots, if not bucking a tide or a stiff hedwind, I'd say you'd need about about 26 quarts or 4 Gals. What is your motoring range for your boat with the 12 Gal tank? Don't know Thom, that's why I'm asking here i filled up last time out and took on almost 5 gallons, that was for the season. I don't motor much, and I plan on sailing, but I want to have a back up, just in case. Scotty |
Must I send a note home?
Mr. V "Scout" wrote in message ... then I withdraw my answer. Scout "Scott Vernon" wrote in message ... You must show your work! Scotty "Scout" wrote in message ... 12 gallons Scout "Scott Vernon" wrote in message ... How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA -- Scott Vernon Plowville Pa _/)__/)_/)_ |
On Wed, 22 Sep 2004 00:27:19 +0100, "Donal"
wrote this crap: I have done 75 miles using about 7 European gallons on flat calm. US gallons are about 10% smaller. European gallons? I thought Europe used liters? Pathetic Earthlings! No one can save you now! |
My guess is he was thinking of Imperial gallons, or more fitting to
Donut, Imp gallons. Scotty "Horvath" wrote in message ... On Wed, 22 Sep 2004 00:27:19 +0100, "Donal" wrote this crap: I have done 75 miles using about 7 European gallons on flat calm. US gallons are about 10% smaller. European gallons? I thought Europe used liters? Pathetic Earthlings! No one can save you now! |
On Wed, 22 Sep 2004 00:09:27 -0400, "Scott Vernon"
wrote this crap: My guess is he was thinking of Imperial gallons, or more fitting to Donut, Imp gallons. Then he's really messed up. Imperial gallons are 25% larger, not 10%. He must have some sort of new gallons, where four liters equal a European gallon? I have done 75 miles using about 7 European gallons on flat calm. US gallons are about 10% smaller. European gallons? I thought Europe used liters? Pathetic Earthlings! No one can save you now! |
Scott Vernon wrote:
.. Especially since you already have the two 3 gallon jugs ;) Ok, now....where should I put them? \ Well Scotty, I guess you'll just have to let them roll about on the deck between the coach and the toe rail (along with your bumpers), I know this because I have been informed by reliable sources, (Chuckles and BB) that lockers are not to be used for stowing things. Cheers Marty |
. Especially since you already have the two 3 gallon jugs ;)
Scott Vernon wrote: Ok, now....where should I put them? Is that a loaded question? Martin Baxter wrote: Well Scotty, I guess you'll just have to let them roll about on the deck between the coach and the toe rail (along with your bumpers), I know this because I have been informed by reliable sources, (Chuckles and BB) that lockers are not to be used for stowing things. There a couple of Boobsie-sail answers... hoist them up the masts, since they'll take out further than your sails ever will... tow them in the dinghy so they don't weigh down the boat & cause extra drag... make fuzzy velour slipcovers for the jugs and use them to accessorize your cabin settees... An alternative I'm exploring for our boat is to store lots & lots of extra fuel very simply, by pouring it out on the water. Then you ride along with a oil spill recovery scoop on the bow, running on the fuel as you go. Fresh Breezes- Doug King |
Scot,
If you are going to carry extra fuel in Jerry Jugs. CARRY THEM ON DECK!! Tied to the stanchions or some where a spill will go to a scupper. A diesel spill in the cabin will give you a smell for an awful long time. Ole Thom |
Scott,
5 gallons is just about what I use for what you would call a Sailing Season but I leave my boat in year round and on those nice NW winter days I sail. I motor sail for two reasons; 1 Two get cabin heat from my Red Dot heater and 2 To get rid of the fuel I put in, in the Spring I have a 20 Gal fuel tank and more often than not, I'll have a 1/4 tank left come spring. This I pump out in the spring. I give it to the live aboard ten slips down from me for heating fuel. I fill the tank each spring, hoping to fight condensation (?) I have a filter/liquid trap but an active tank seem to work best for me. With you pulling your boat for the winter, that 12 Gal tank was well thought out. Ole Thom |
"Thom Stewart" wrote ... Scott, A diesel spill in the cabin will give you a smell for an awful long time. yuck, then I'd think I was back at work. Scotty |
"Scott Vernon" wrote in message ... "Donal" wrote I have done 75 miles using about 7 European gallons on flat calm. Doesn't help any, Donut. Where am I going to find Euro gallons over here? You must have missed the bit where I said that US gallons were about 90% of UK gallons. Your 12 gallons are about 10.8 of my gallons. Therefore, my opinion is that 12 gallons will be fine as long as you don't try to motor into strong head winds. I didn't mean to embarrass you .. honestly ... I wasn't aware that you were mathematically challenged!! Regards Donal -- |
"Horvath" wrote in message ... On Wed, 22 Sep 2004 00:09:27 -0400, "Scott Vernon" wrote this crap: My guess is he was thinking of Imperial gallons, or more fitting to Donut, Imp gallons. Then he's really messed up. Imperial gallons are 25% larger, not 10%. No Horvath. They are 20% bigger. I'd have been really proud if you had been absolutely correct.... After all nobody has ever managed to prompt you to write anything sensible before. He must have some sort of new gallons, where four liters equal a European gallon? Wrong .... as usual [sigh]. Regards Donal -- |
"Donal" wrote Your 12 gallons are about 10.8 of my gallons. Therefore, my opinion is that 12 gallons will be fine as long as you don't try to motor into strong head winds. If there's strong winds, we sail. Scotty |
I don't think Mom could take another one.
Scout "Scott Vernon" wrote in message ... Must I send a note home? Mr. V "Scout" wrote in message ... then I withdraw my answer. Scout "Scott Vernon" wrote in message ... You must show your work! Scotty "Scout" wrote in message ... 12 gallons Scout "Scott Vernon" wrote in message ... How much fuel should I carry if I want to be assured of motoring (in case there's no wind) non stop for 100 miles? 30' boat, disp. #7,500. Yanmar 2GM20. I have a 12 gallon tank. TIA -- Scott Vernon Plowville Pa _/)__/)_/)_ |
On Thu, 23 Sep 2004 00:36:46 +0100, "Donal"
wrote this crap: Then he's really messed up. Imperial gallons are 25% larger, not 10%. No Horvath. They are 20% bigger. Imperial gallons are five quarts, rather than four quarts. 25% larger. But they don't use Imperial gallons in Europe. They use liters in Europe. Pathetic Earthlings! No one can save you now! |
"Horvath" wrote in message ... But they don't use Imperial gallons in Europe. They use liters in Europe. No, they don't use "liters" in Europe! We use "gallons" here. Regards Donal -- |
"Scott Vernon" wrote in message ... "Donal" wrote Your 12 gallons are about 10.8 of my gallons. Therefore, my opinion is that 12 gallons will be fine as long as you don't try to motor into strong head winds. If there's strong winds, we sail. ahem I assumed that!!! That's why I suggested that you would be OK. Please accept my apologies. I promise that I won't contribute anything the next time that you ask an "on topic" question. Regards Donal -- |
"Donal" wrote in message
... "Scott Vernon" wrote in message ... "Donal" wrote I have done 75 miles using about 7 European gallons on flat calm. Doesn't help any, Donut. Where am I going to find Euro gallons over here? You must have missed the bit where I said that US gallons were about 90% of UK gallons. Your 12 gallons are about 10.8 of my gallons. Therefore, my opinion is that 12 gallons will be fine as long as you don't try to motor into strong head winds. I didn't mean to embarrass you .. honestly ... I wasn't aware that you were mathematically challenged!! You're not much better, Donal. 12 US gallons are under 10 Imperial Gallons. Here's the odd thing: Both US and UK Gallons are defined as 8 pints. Except US Pints are 16 fluid ounces, while the UK pints are 20 fluid ounces. However, in the US a fluid ounce is 1.8 cubic inches, but in the UK a fluid ounce is 1.73 cubic inches. Now, if only someone could explain why my 10 cup coffee maker only makes two mugs of coffee, I'd be happy. |
are you trying to be obtuse?
Scotty "Donal" wrote in message ... "Scott Vernon" wrote in message ... "Donal" wrote Your 12 gallons are about 10.8 of my gallons. Therefore, my opinion is that 12 gallons will be fine as long as you don't try to motor into strong head winds. If there's strong winds, we sail. ahem I assumed that!!! That's why I suggested that you would be OK. Please accept my apologies. I promise that I won't contribute anything the next time that you ask an "on topic" question. Regards Donal -- |
On Thu, 23 Sep 2004 20:51:54 -0400, "Jeff Morris"
wrote this crap: Now, if only someone could explain why my 10 cup coffee maker only makes two mugs of coffee, I'd be happy. Try cleaning the sediment out of it. Pathetic Earthlings! No one can save you now! |
"Scott Vernon" wrote in message ... are you trying to be obtuse? What does "obtuse" mean? Regards Donal -- |
"Jeff Morris" wrote in message ... "Donal" wrote in message ... "Scott Vernon" wrote in message ... "Donal" wrote I have done 75 miles using about 7 European gallons on flat calm. Doesn't help any, Donut. Where am I going to find Euro gallons over here? You must have missed the bit where I said that US gallons were about 90% of UK gallons. Your 12 gallons are about 10.8 of my gallons. Therefore, my opinion is that 12 gallons will be fine as long as you don't try to motor into strong head winds. I didn't mean to embarrass you .. honestly ... I wasn't aware that you were mathematically challenged!! You're not much better, Donal. Correct ... but I deliver my insults with more panache! 12 US gallons are under 10 Imperial Gallons. Again, You are absolutely correct. I hadn't realised that US gallons were so small. Now that we have the confessions out of the way, do you think that Scotty should attempt his trip without spare fuel? Regards Donal -- |
Scotty's boat has an LWL of 25 so 5 knots means an S/L of 1.0. Pushing a boat
at S/L of 1.0 needs one HP per 1200 pounds, which for 7500 pounds is 6.25. Assuming 0.055 gal/hp/hour means about .35 gal/hour or about 35 hours run time. At 5 knots, that should give him a range of 175 miles. If you look at the specs of the 2GM20, these numbers are close to realistic, though there are variables not considered, such has the propeller setup, and the cleanliness of the hull. So in theory, there should be no problem. If his only concern is no wind, then he should be able to come close to these idealized numbers, or even do better by slowing down some. However, if headwinds are a problem,or if the is absolutely no alternative source of fuel, he might want to carry a reserve, especially since he can gain 50% capacity with a low cost jug lashed on deck. "Donal" wrote in message ... "Jeff Morris" wrote in message ... "Donal" wrote in message ... "Scott Vernon" wrote in message ... "Donal" wrote I have done 75 miles using about 7 European gallons on flat calm. Doesn't help any, Donut. Where am I going to find Euro gallons over here? You must have missed the bit where I said that US gallons were about 90% of UK gallons. Your 12 gallons are about 10.8 of my gallons. Therefore, my opinion is that 12 gallons will be fine as long as you don't try to motor into strong head winds. I didn't mean to embarrass you .. honestly ... I wasn't aware that you were mathematically challenged!! You're not much better, Donal. Correct ... but I deliver my insults with more panache! 12 US gallons are under 10 Imperial Gallons. Again, You are absolutely correct. I hadn't realised that US gallons were so small. Now that we have the confessions out of the way, do you think that Scotty should attempt his trip without spare fuel? Regards Donal -- |
"Donal" wrote in message ... "Scott Vernon" wrote in message ... are you trying to be obtuse? What does "obtuse" mean? yes. SV |
I think I will. Just for peace of mind.
Scotty "Jeff Morris" wrote in message ... Scotty's boat has an LWL of 25 so 5 knots means an S/L of 1.0. Pushing a boat at S/L of 1.0 needs one HP per 1200 pounds, which for 7500 pounds is 6.25. Assuming 0.055 gal/hp/hour means about .35 gal/hour or about 35 hours run time. At 5 knots, that should give him a range of 175 miles. If you look at the specs of the 2GM20, these numbers are close to realistic, though there are variables not considered, such has the propeller setup, and the cleanliness of the hull. So in theory, there should be no problem. If his only concern is no wind, then he should be able to come close to these idealized numbers, or even do better by slowing down some. However, if headwinds are a problem,or if the is absolutely no alternative source of fuel, he might want to carry a reserve, especially since he can gain 50% capacity with a low cost jug lashed on deck. "Donal" wrote in message ... "Jeff Morris" wrote in message ... "Donal" wrote in message ... "Scott Vernon" wrote in message ... "Donal" wrote I have done 75 miles using about 7 European gallons on flat calm. Doesn't help any, Donut. Where am I going to find Euro gallons over here? You must have missed the bit where I said that US gallons were about 90% of UK gallons. Your 12 gallons are about 10.8 of my gallons. Therefore, my opinion is that 12 gallons will be fine as long as you don't try to motor into strong head winds. I didn't mean to embarrass you .. honestly ... I wasn't aware that you were mathematically challenged!! You're not much better, Donal. Correct ... but I deliver my insults with more panache! 12 US gallons are under 10 Imperial Gallons. Again, You are absolutely correct. I hadn't realised that US gallons were so small. Now that we have the confessions out of the way, do you think that Scotty should attempt his trip without spare fuel? Regards Donal -- |
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