Il a construit un Spratt 103. A la question de "deflier" publiée dans un Yahoo group https://groups.yahoo.com/neo/groups/Spr ... ssages/817 :
Has a completed Spratt 103 been flown in the USA?
... il a repondu ceci le 14 décembre 2015 :
Depuis : plus de nouvelles ...Not that I know of. My Sprat103 is finished and I have taxied it on the runway. I am overdue to get it off the ground. Seems that many wonder if it will fly.... It has wings, tail, and pusher engine/prop. It will by definition fly just like a glider with a small engine. How well will the steering work? Probably well enough to get the aircraft turned to come back and land.
If you look at a gyrocopter you will see that it also does not have an elevator and uses power to go up or less to go down. I have flown the Benson gyro. These machines need the "hang test" so you can see the attitude of the airframe relative to the engine/prop with the pilot on board. The aircraft is hanging from the rotor on the gyro or the center of lift on the Sprat wings. If this is too far off it will fly poorly. For a straight ahead flight with no turns using power only to go up and come down with the wings angle of attack at takeoff setting, the Sprat will fly the same as a Quicksilver. The rest is detail that will be learned quickly during testing.
Norm Heistand
10 mois de silence quand même !
Comment joindre Norman en privé ou en public ? Y aurait-il ici un habitué des Yahoo groups ?
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