....................Inflight views............,
..Top and bottom views of the completed plane..
..details..
.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..
8x500 Sanyos.
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.
Both Femtos...
..Inverted Vee-tail camera plane..