....................Inflight views............,..Top and bottom views of the completed plane..
.Span is 33inches, root chord 14 inches, tip chord 12-1/2 inches.
Length overall 28 inches..
GP motor and 1:1.7 gear box.
Futaba R-144H receiver:
Jeti JEC 30 BEC..
APC 9x4 e-prop.
2 S-133 servos, 1 HS-81.
Weight 20 oz.
Wing loading 7-1/8 oz/ft^2.
Covered with Japanese tissue (40 years old!) and sprayed with 2-3 coats of clear polyurethane. Probably not a good idea. The covering was VERY brittle!
Used dental floss for the pull-pull rudder and elevator cables.
Don't do that!
c.g. came out at or past the aft limit.
Flights went OK.. at least the first one. Very sensitive on the elevator, at lo-rate. Way too much elevator area! Ailerons are too large. Lots of adverse yaw.
The surface control horns on the plans are too short. Hi-rates pulls the surfaces way too far off neutral. A very low lo-rate setting is needed for good control in flight.
Electrical tape is not a good motor fastener. Heat softens and stretches it, the motor twists on the motor. Traditional #64 gum bands work best.
The dental floss stretched on the second flight, when pulling up elevator after a spin..
The next plane lost a few parts under construction:
All the capstrips went, 2 ribs and riblets- spacing changed for 6 ribs from 8;
Full depth shear webs changed to 1/16"x1/4" sticks, diagonally (and crossed) between the main ribs.
1/16"x1/8" vertical stiffeners at each main spar notch on the ribs and riblets.