This Piper Cub float plane is my entry for the TSATS competition.
-Motorized fake flat 4 engine and prop (variable speed controlled by rechargeable battery and throttle levers in cockpit)
-Working ailerons controlled by left/right movement of joysticks
-Working elevator controlled by forward/backward movement of joysticks
-Working rudder controlled by rudder pedals
-Working water rudders controlled by rudder pedals
-Motorized flaps controlled by yellow levers in cockpit
-Motorized drooping ailerons synchronized with flaps
-Motorized variable pitch propeller controlled by levers in cockpit
-Motorized retractable landing gear with locks controlled by lever in cockpit
-2 m motors
-2 mini LAs
-1 Rechargeable Battery
-1 AA Battery Box
-Wing Span 56in (1.42m)
-Length 47in (1.19m)
-Height 17in (43.18cm)
-Length of each float 30in (76.20cm)
-Weight 9.3 pounds (4.22kg)
Yellow lever lowers the flaps
Tan lever (upper right of photo) lowers/raises the landing gear
Grey lever on left side of cockpit controls blade pitch
Black lever on left side of cockpit controls engine speed
Black control stick in the center controls elevators and ailerons
Grey rudder pedals control the rudder
The gearbox has 3 outputs, and each output has forward and reverse. The gearbox controls the movement in the landing gear, flaps, and variable pitch propeller. The tan gears in the upper left corner of the picture are part of the control mixer used for the drooping ailerons. As the flap drive moves, it simultaneously moves the aileron linkages, and ailerons. Separate aileron movement by the control stick is still possible.
Landing gear extended:
Landing gear retracted:
Engine with variable pitch mechanism:
Underside showing some of the linkages:
The AA battery box acts as a counterweight and keeps the elevators in their neutral position. Without it, the elevators would move down under their own weight. It's a simple solution, and it works surprisingly well.
I'm fairly happy with how everything turned out, especially the motorized functions. They work really well. I wish I could have spent more putting the body together so it looks better, but time was short. The float rudders don't work too well, and I haven't figure out why yet.
All in all though, this was a fun project. I definitely want to build another airplane.
More pictures on my flickr
WIP thread here
I'll try to have a better video up in a day or two.
Thanks to Eurobricks for hosting the contest, and thanks to Sinner/Seigfried for running it!
Edited by dhc6twinotter, 25 April 2012 - 12:48 AM.