Canuck Bob
New member
I am planning a big triple sled engine for an ultralight plane conversion. I rode for years but 2 artificial hips forced me to take up a safer sport, ultralight flying. Would anyone be interested in tackling a different tech question and application.
I live in western Canada and can get good mid to late 90's mountain sleds for the project.
Criteria
Bulletproof, Yamaha reliability seems outstanding
Low Vibration, Rotax UL engines shake themselves and pilots to death
Monster torque at lower rpm range, say 5200-6200 max
Single pipe for weight, probably custom due to the lo rpms
Perhaps Attac system for altitude and temp compensation
Prop speed 2500 through reducer
Average flight is full power 2-3 minutes max for takeoff then 75% power for remainder usually 2-3 hours max per day
3000 to 5500 foot operating range
Thanks
I live in western Canada and can get good mid to late 90's mountain sleds for the project.
Criteria
Bulletproof, Yamaha reliability seems outstanding
Low Vibration, Rotax UL engines shake themselves and pilots to death
Monster torque at lower rpm range, say 5200-6200 max
Single pipe for weight, probably custom due to the lo rpms
Perhaps Attac system for altitude and temp compensation
Prop speed 2500 through reducer
Average flight is full power 2-3 minutes max for takeoff then 75% power for remainder usually 2-3 hours max per day
3000 to 5500 foot operating range
Thanks