This is a movie of Plane launcher launching an air plane.
They usually went 10-15 feet.
On occasion it went 10-15 centimeters.
This is a view of the back of the truck.
This is the front of the truck.
This is a view of the drive motor.
This is Plane launcher packed up for travel.
How it works.
An IR remote and reciver controls the power functions motors.(The power functions motors control driving and steering)
The same IR remote controls the NXT motor that pulls a pin out and releases the air plane.
(The IR remote has 4 different channels allowing the use of up to 8 different motors at one time)
The steering motor spins the bevel gear which moves the worm gear left or right making the wheels turn.
The drive motor is connected to a u joint that is conected to a long cross beam connected to another
u joint, the u joint turns a smaller cross beam that turns the knob gears which turn the bevel gears.
Launching the plane:
Rubber bands are connected to the top of the runway the plane is connected to the rubber bands with a hook. The plane is secured behind a beam that is held in place with a cross beam. When the motor turns it pulls the string holding the pin and the rubber band pulls launches the plane.