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Sizing a trolling motor
Is there a rule a thumb for sizing an auxiliary trolling outboard. What size would be needed for a 30ft 10,000 lb boat? |
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On Wed, 06 Oct 2004 18:44:10 GMT, Short Wave Sportfishing
wrote: Well, I had a 30 on a 32' Contender, but it's a waste of time. I found that directional control was a problem and to tell the truth, I could control the trolling speeds much better with one of the two main engines off. If you have any kind of draft on your boat, using the main engine(s) would be much more efficient and you really aren't going to gain much in the fuel department, never mind rigging a steering control system. What kidn of boat are you trying to put this on? Later, Tom I'm considering buying a Boston Whaler 305 Conquest however I looked at the gas consumption (at boattest.com) at low rpm and I find it to be quite high, that's why I was looking at a small aux trolling motor. |
On Wed, 06 Oct 2004 12:00:47 -0700, Peter Guitzmyer
wrote: On Wed, 06 Oct 2004 18:44:10 GMT, Short Wave Sportfishing wrote: Well, I had a 30 on a 32' Contender, but it's a waste of time. I found that directional control was a problem and to tell the truth, I could control the trolling speeds much better with one of the two main engines off. If you have any kind of draft on your boat, using the main engine(s) would be much more efficient and you really aren't going to gain much in the fuel department, never mind rigging a steering control system. What kidn of boat are you trying to put this on? I'm considering buying a Boston Whaler 305 Conquest however I looked at the gas consumption (at boattest.com) at low rpm and I find it to be quite high, that's why I was looking at a small aux trolling motor. You mean the 295 Conquest? At boatTEST.com, the low idle speed (Merc 225s EFI) Gph figure is 5. That's not bad. Compared to cruise (25 Mph in the article) your fuel flow is like 36 Gph (1.43 mpg x 25Mph). Just as a side note, I'm a little suspicious of those article numbers based on my own experience - they seem a little low. Is it possible for you to change the engines over direct injected engines? On the other hand, mounting a kicker engine would be easy and relatively uncomplicated. There are mounts made special for this style of transom and you can go with different steering mechanism from mechanical to hydraulic. On the minus side, a boat with this much "wind sail" area will be hard to control with a kicker engine. Just something to think about. If you insist on a kicker, then 25 to 30 should be more can acceptable. Later, Tom |
On Wed, 06 Oct 2004 20:14:02 GMT, Short Wave Sportfishing
wrote: your fuel flow is like 36 Gph (1.43 mpg x 25Mph). ========================== Tom, your math is backwards: 25 mph / 1.43 mpg = 17.48 gph about right for 175 actual hp |
Is there a rule a thumb for sizing an auxiliary trolling outboard.
What size would be needed for a 30ft 10,000 lb boat? none that you can buy will move that boat in anything other than a flat calm and no current, except in Port Fantasy in LaLaLand. |
JAXAshby wrote:
Is there a rule a thumb for sizing an auxiliary trolling outboard. What size would be needed for a 30ft 10,000 lb boat? none that you can buy will move that boat in anything other than a flat calm and no current, except in Port Fantasy in LaLaLand. Bull****. There are plenty of heavy 30 foot boats around with outboard trolling motors that can move right along. Some of these boats have 20 or 25 hp outboards...I suspect most of them move on the outboards faster than your crappy little sailboat. -- "...vice president (Cheney), I'm surprised to hear him talk about records. When he was one of 435 members of the United States House, he was one of 10 to vote against Head Start, one of four to vote against banning plastic weapons that can pass through metal detectors. He voted against the Department of Education. He voted against funding for Meals on Wheels for seniors. He voted against a holiday for Martin Luther King. He voted against a resolution calling for the release of Nelson Mandela in South Africa. It's amazing to hear him criticize either my record or John Kerry's." - Senator John Edwards, 10/05/04 |
JAXAshby wrote:
electric? hoary, trolling motors are those ****ant little electric things. Gas engines aren't trolling motors -- even tho they may be used for trolling -- they are gas motors. Absurd. Trolling motors can be electric, or they can be gas outboards. My Parker has an engine bracket with a built in mini bracket for an outboard trolling motor. Many of the guys who troll seriously for stripers in the Bay use outboards for trolling motors. Obviously, your experiences are limited. -- "...vice president (Cheney), I'm surprised to hear him talk about records. When he was one of 435 members of the United States House, he was one of 10 to vote against Head Start, one of four to vote against banning plastic weapons that can pass through metal detectors. He voted against the Department of Education. He voted against funding for Meals on Wheels for seniors. He voted against a holiday for Martin Luther King. He voted against a resolution calling for the release of Nelson Mandela in South Africa. It's amazing to hear him criticize either my record or John Kerry's." - Senator John Edwards, 10/05/04 |
Also Sprach JAXAshby :
electric? hoary, trolling motors are those ****ant little electric things. Gas engines aren't trolling motors -- even tho they may be used for trolling -- they are gas motors. If it's a motor used for trolling, it is a trolling motor. No matter whay some speedo wearing jackass thinks. Just like there are locks on the Shinnecock canal, no matter what your absurd reasoning is. Dan -- Barbie says, Take quaaludes in gin and go to a disco right away! But Ken says, WOO-WOO!! No credit at "Mr. Liquor"!! -- Zippy the Pinhead |
On Wed, 06 Oct 2004 20:38:24 -0400, Wayne.B
wrote: On Wed, 06 Oct 2004 20:14:02 GMT, Short Wave Sportfishing wrote: your fuel flow is like 36 Gph (1.43 mpg x 25Mph). ========================== Tom, your math is backwards: 25 mph / 1.43 mpg = 17.48 gph about right for 175 actual hp Dammit!!! You know, mathematicians are horrible at arithmetic. :) Thanks for the correction. Take care. Tom "The beatings will stop when morale improves." E. Teach, 1717 |
On Wed, 06 Oct 2004 22:01:19 -0400, Harry Krause
wrote: JAXAshby wrote: Is there a rule a thumb for sizing an auxiliary trolling outboard. What size would be needed for a 30ft 10,000 lb boat? none that you can buy will move that boat in anything other than a flat calm and no current, except in Port Fantasy in LaLaLand. Bull****. There are plenty of heavy 30 foot boats around with outboard trolling motors that can move right along. Some of these boats have 20 or 25 hp outboards...I suspect most of them move on the outboards faster than your crappy little sailboat. I found on the Contender that the small trolling motor was more of a pain that it was worth. Hard to control and you had to keep switching the main engines on/off to do what I wanted. I just gave up on it and went with a single main running in trolling situations. Take care. Tom "The beatings will stop when morale improves." E. Teach, 1717 |
Short Wave Sportfishing wrote:
On Wed, 06 Oct 2004 22:01:19 -0400, Harry Krause wrote: JAXAshby wrote: Is there a rule a thumb for sizing an auxiliary trolling outboard. What size would be needed for a 30ft 10,000 lb boat? none that you can buy will move that boat in anything other than a flat calm and no current, except in Port Fantasy in LaLaLand. Bull****. There are plenty of heavy 30 foot boats around with outboard trolling motors that can move right along. Some of these boats have 20 or 25 hp outboards...I suspect most of them move on the outboards faster than your crappy little sailboat. I found on the Contender that the small trolling motor was more of a pain that it was worth. Hard to control and you had to keep switching the main engines on/off to do what I wanted. I just gave up on it and went with a single main running in trolling situations. Take care. Tom "The beatings will stop when morale improves." E. Teach, 1717 That's what I do for the most part when I can tolerate trolling, which isn't often. But in the Bay, the conditions usually are ok for an 8 or 9 hp trolling motor on a 25 foot boat...most of the guys just have an extended handle on the outboard to steer it with, and buy the model with electric trim/tilt. They troll for stripers, really slow, in relatively unchallenging sea conditions. Many of the larger Gradys and Parkers hereabouts have trolling motor brackets. -- "...vice president (Cheney), I'm surprised to hear him talk about records. When he was one of 435 members of the United States House, he was one of 10 to vote against Head Start, one of four to vote against banning plastic weapons that can pass through metal detectors. He voted against the Department of Education. He voted against funding for Meals on Wheels for seniors. He voted against a holiday for Martin Luther King. He voted against a resolution calling for the release of Nelson Mandela in South Africa. It's amazing to hear him criticize either my record or John Kerry's." - Senator John Edwards, 10/05/04 |
okay, hoary. have it your way. put an electric trolling motor on a 30 foot
boat and have at it. get urself a couple extra batteries and ur set. Harry Krause Date: 10/6/2004 10:59 PM Eastern Daylight Time Message-id: JAXAshby wrote: electric? hoary, trolling motors are those ****ant little electric things. Gas engines aren't trolling motors -- even tho they may be used for trolling -- they are gas motors. Absurd. Trolling motors can be electric, or they can be gas outboards. My Parker has an engine bracket with a built in mini bracket for an outboard trolling motor. Many of the guys who troll seriously for stripers in the Bay use outboards for trolling motors. Obviously, your experiences are limited. -- "...vice president (Cheney), I'm surprised to hear him talk about records. When he was one of 435 members of the United States House, he was one of 10 to vote against Head Start, one of four to vote against banning plastic weapons that can pass through metal detectors. He voted against the Department of Education. He voted against funding for Meals on Wheels for seniors. He voted against a holiday for Martin Luther King. He voted against a resolution calling for the release of Nelson Mandela in South Africa. It's amazing to hear him criticize either my record or John Kerry's." - Senator John Edwards, 10/05/04 |
JAXAshby wrote:
okay, hoary. have it your way. put an electric trolling motor on a 30 foot boat and have at it. get urself a couple extra batteries and ur set. Harry Krause Date: 10/6/2004 10:59 PM Eastern Daylight Time Message-id: JAXAshby wrote: electric? hoary, trolling motors are those ****ant little electric things. Gas engines aren't trolling motors -- even tho they may be used for trolling -- they are gas motors. Absurd. Trolling motors can be electric, or they can be gas outboards. My Parker has an engine bracket with a built in mini bracket for an outboard trolling motor. Many of the guys who troll seriously for stripers in the Bay use outboards for trolling motors. Obviously, your experiences are limited. Nice try, booze for brains, but I never said the typical electric trolling motor would be appropriate for a 30 footer. But many boats that sized used for fishing in the Bay here have gasoline outboard motors for trolling motors. You're not equipped for word games. -- "...vice president (Cheney), I'm surprised to hear him talk about records. When he was one of 435 members of the United States House, he was one of 10 to vote against Head Start, one of four to vote against banning plastic weapons that can pass through metal detectors. He voted against the Department of Education. He voted against funding for Meals on Wheels for seniors. He voted against a holiday for Martin Luther King. He voted against a resolution calling for the release of Nelson Mandela in South Africa. It's amazing to hear him criticize either my record or John Kerry's." - Senator John Edwards, 10/05/04 |
On Thu, 07 Oct 2004 06:30:56 -0400, Harry Krause
wrote: Short Wave Sportfishing wrote: On Wed, 06 Oct 2004 22:01:19 -0400, Harry Krause wrote: JAXAshby wrote: Is there a rule a thumb for sizing an auxiliary trolling outboard. What size would be needed for a 30ft 10,000 lb boat? none that you can buy will move that boat in anything other than a flat calm and no current, except in Port Fantasy in LaLaLand. Bull****. There are plenty of heavy 30 foot boats around with outboard trolling motors that can move right along. Some of these boats have 20 or 25 hp outboards...I suspect most of them move on the outboards faster than your crappy little sailboat. I found on the Contender that the small trolling motor was more of a pain that it was worth. Hard to control and you had to keep switching the main engines on/off to do what I wanted. I just gave up on it and went with a single main running in trolling situations. That's what I do for the most part when I can tolerate trolling, which isn't often. But in the Bay, the conditions usually are ok for an 8 or 9 hp trolling motor on a 25 foot boat...most of the guys just have an extended handle on the outboard to steer it with, and buy the model with electric trim/tilt. They troll for stripers, really slow, in relatively unchallenging sea conditions. Many of the larger Gradys and Parkers hereabouts have trolling motor brackets. We used to do that when I was in high school. The school had two 18 foot Swampscott Dory's with engine wells - man, that was so cool - whipping down the harbor in a flat bottomed dory standing up in the bow to trim the boat with that long tiller stick attached to the 30 hp engine handle. Those were the days. :) Later, Tom ----------- "Angling may be said to be so like the mathematics that it can never be fully learnt..." Izaak Walton "The Compleat Angler", 1653 |
Around 10/7/2004 6:10 AM, JohnH wrote:
Harry Krause wrote: Absurd. Trolling motors can be electric, or they can be gas outboards. My Parker has an engine bracket with a built in mini bracket for an outboard trolling motor. Many of the guys who troll seriously for stripers in the Bay use outboards for trolling motors. Obviously, your experiences are limited. A very small minority of bay fisherman use a separate, small outboard for trolling. I know two who have separate 'trolling outboards' mounted, but seldom, if ever, use them for trolling. A large majority of Puget Sound fishermen use a separate, small outboard for trolling. If you ever come and take a tour of the Everett marina, you'll see that every third small boat that isn't a sailboat has a "kicker" for fishing. -- ~/Garth - 1966 Glastron V-142 Skiflite: "Blue-Boat" "There is nothing - absolutely nothing - half so much worth doing as simply messing about in boats." -Kenneth Grahame, The Wind in the Willows |
Garth Almgren wrote:
Around 10/7/2004 6:10 AM, JohnH wrote: Harry Krause wrote: Absurd. Trolling motors can be electric, or they can be gas outboards. My Parker has an engine bracket with a built in mini bracket for an outboard trolling motor. Many of the guys who troll seriously for stripers in the Bay use outboards for trolling motors. Obviously, your experiences are limited. A very small minority of bay fisherman use a separate, small outboard for trolling. I know two who have separate 'trolling outboards' mounted, but seldom, if ever, use them for trolling. A large majority of Puget Sound fishermen use a separate, small outboard for trolling. If you ever come and take a tour of the Everett marina, you'll see that every third small boat that isn't a sailboat has a "kicker" for fishing. No offense, but JohnH is not a particularly experienced or skilled Chesapeake Bay fisherman, and, by his own admission, tends to head out on the Bay during the week, when it is, by his standard, "less crowded." That in itself is pretty silly, since the Bay is a large body of water and even on the weekends, you rarely see large numbers of boaters in one smaller area unless you're very near Annapolis or over on the other side of the Bay in the bar and restaurant zone. Most drift-troll fishing areas aren't crowded on the weekends. In any event, on the average weekend day when I am out, I might see 25 boats trolling boats the size and style of my Parker (and of course larger and smaller boats), and about a third will have small outboard trolling motors in use. In my mind, that's "many." -- "...vice president (Cheney), I'm surprised to hear him talk about records. When he was one of 435 members of the United States House, he was one of 10 to vote against Head Start, one of four to vote against banning plastic weapons that can pass through metal detectors. He voted against the Department of Education. He voted against funding for Meals on Wheels for seniors. He voted against a holiday for Martin Luther King. He voted against a resolution calling for the release of Nelson Mandela in South Africa. It's amazing to hear him criticize either my record or John Kerry's." - Senator John Edwards, 10/05/04 |
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