dlandersson wrote:Isn't everything in Canada measured in Imperial whatevers?
Yes, our beer is measured in Imperial tankards.
dlandersson wrote:Isn't everything in Canada measured in Imperial whatevers?
An update on the prop for my Yamaha 70 ........ I did a 4 day San Juan Islands trip, and I was FULLY LOADED! 2 adults, 2 extra batteries (for a total of 4 .... the 2 extras for CPAP machines), 10 gallons water, 21 gallons fuel, 2000W Honda generator, pop/food/etc, etc. I found the several hundred extra pounds impacted my RPMs with the 13 1/2" prop. Max RPMs only got up to 5400 (instead of 5800 when lightly loaded), and my top speed reduced to 20mph. I am going to go back to the 14" x 11P prop, that should get me into the more efficient RPM zone when loaded.mallardjusted: The Michigan aluminum 101036 (14" x 11P) was ok, but on the higher end (6200-6300) for rpm. The Michigan 10132 (13 1/2" x 15P) is what I have ....
how much of that 21 gallons did you burn ? How many miles ? How much of that was motoring ?mallardjusted wrote:An update on the prop for my Yamaha 70 ........ I did a 4 day San Juan Islands trip, and I was FULLY LOADED! 2 adults, 2 extra batteries (for a total of 4 .... the 2 extras for CPAP machines), 10 gallons water, 21 gallons fuel, 2000W Honda generator, pop/food/etc, etc. I found the several hundred extra pounds impacted my RPMs with the 13 1/2" prop. Max RPMs only got up to 5400 (instead of 5800 when lightly loaded), and my top speed reduced to 20mph. I am going to go back to the 14" x 11P prop, that should get me into the more efficient RPM zone when loaded.mallardjusted: The Michigan aluminum 101036 (14" x 11P) was ok, but on the higher end (6200-6300) for rpm. The Michigan 10132 (13 1/2" x 15P) is what I have ....
Used approximately 19 gallons for 70 to 75 statute miles (actually put some more fuel in the tanks during the trip .... not wanting to chance running out!).how much of that 21 gallons did you burn ? How many miles ? How much of that was motoring ?
I didn't do anything extra on the transom. The outboard is only a few pounds different (30 or less?). I would think about it if I was going up to 90 or more horses with 80 lbs or more sitting on the transom.I was wondering if the transom needed to be strengthened for the extra HP when going to a Yamaha 70.