skyguynca
Gold Member
- Joined
- Sep 23, 2004
- Messages
- 1,413
- Location
- Acampo, CA
- Aircraft
- depends on what I have sold recently
- Total Flight Time
- 5000+
OK, so we all know that the lighter the aircraft the less required power. The better the rotors the less hp required. A few gyros made it legitimately under Part 103. Even fewer did it using the Rotax 447 of 40hp.
So it can be done efficiently in both used of materials to keep it light, and efficiency in drag.
One example is Fetter's Air Command 447. The few owners I have talked with said it flew pretty good and used the 40hp Rotax.
Other Part 103 compliant like the KB3 make it by weight and speed but need a Rotax 60 hp 532 or 582 to fly decently.
Not many tractor gyros out there, and none really made Part 103.
My Bensen/KB2 made it because I shaved all weight were I could, used a 90hp MAC (loved it) and pitched the rotor so I could not fly faster than 60 mph.
My Gyrobee made it, built to plans and used a Rotax 447. Must say though it flew ok, did not feel as solid as the KB2.
Is there any particular reason (beside best view) why there are fewer tractor gyros?
Why if you are able to make 254 lbs does that usually require more than 50hp needed?
David M.
So it can be done efficiently in both used of materials to keep it light, and efficiency in drag.
One example is Fetter's Air Command 447. The few owners I have talked with said it flew pretty good and used the 40hp Rotax.
Other Part 103 compliant like the KB3 make it by weight and speed but need a Rotax 60 hp 532 or 582 to fly decently.
Not many tractor gyros out there, and none really made Part 103.
My Bensen/KB2 made it because I shaved all weight were I could, used a 90hp MAC (loved it) and pitched the rotor so I could not fly faster than 60 mph.
My Gyrobee made it, built to plans and used a Rotax 447. Must say though it flew ok, did not feel as solid as the KB2.
Is there any particular reason (beside best view) why there are fewer tractor gyros?
Why if you are able to make 254 lbs does that usually require more than 50hp needed?
David M.