Fan Plane
This plane is the result of a dare from a fellow clubmate. He taunted
me with his promises to be the
1st in our club to get an electric ducted fan in the air. Well, I had
to show him, didn't I. This was
designed, built, and flown in just under 7 days! I already had the
fan and motor, and the wings
were an extra set of wing tips from a Bobcat glider. The first flight
was done on an overcast day
at a ballpark in Martinez CA., with the help of my friend Al Auger.
It flew better than either
of us could have imagined and it sounded like a flying shopvac!
The sound was probably caused
by no inlet lip radius. It wasn't as fast as I had hoped, but it accomplished
the mission it was
designed for. Al couldn't wait to get home so as to get me to call
the "Daring" clubmate and report
the feat.
Wingspan: | 40" |
Wing area: | 300 sq. in. |
Length: | 30" |
Weight: | 51 oz. |
Wing Loading: | 24.48 oz. / sq. ft. |
Motor: | AstroFlight .05 Ducted Fan |
Fan Unit: | Kress RK-709 |
Fan: | seven bladed 3" X 8" |
Batteries: | 8 X 1700 SCRC |
Speed Control: | Flightec |
Amps: | 56 amps static! |
Watts: | 400 watts |
Watt Loading: | 125 watts / lb. |
Thrust: | 25 oz. static |
The original tail is shown below, it was changed to a V tail.