What about those electric trolling motors? Hard to figure out thrust/power/torque comparisons. What little I know, comparing them to expensive Torquedo is that they use bulky 12 volt batteries vs lithium. Any thoughts? Rimas Aukstuolis On Thu, Oct 15, 2020 at 11:14 AM Alex Conley <conley.alex@gmail.com> wrote:
Thanks for the caution re overpropping. I guess the real solution would be to change the gear ratio to turn a larger prop slower at a given throttle setting. Then you could use more of the engines range and gain both torque at higher speeds and a slower low speed- both on my wishlist. But not a mod I can see making- it’d be a whole new lower end... It seems most of the little outboards we use on our displacement sailboats are geared to get a little inflatable zipping around; have there been attempts to make an outboard geared for small sailboats, or is it just too niche a market? I’ll plan to live with my imperfect 35 yr old motor long enough to hopefully hit the point where the range/cost ratio of the electrics makes them a good replacement....
On Wed, Oct 14, 2020 at 8:10 AM Dave Scobie <scoobscobie@gmail.com> wrote:
Alex:
Somewhere a few years ago I read about a person changing out the prop on the small Honda - wasn't a Mboat. I can't remember any specifics.
The general consensus was the problem is the motor will likely be overstressed under the load - especially a concern with the powerhead being or cooled.
:: Dave Scobie :: M6'8" #650 :: SV SWALLOW - sv-swallow.com :: former owner M17 #375 SWEET PEA - m17-375.com :: former owner M15 #288 SCRED - www.freewebs.com/m15-named-scred/
On Wed, Oct 14, 2020, 8:03 AM Alex Conley <conley.alex@gmail.com> wrote:
Ive also searched for a high thrust prop for my 35 yr old Honda 2 hp but never seen one. In these days of 3D printers/milling, strong plastics and computer designs, it would seem there might be an opportunity for someone to work up some designs that could then be made on order.