Carl Goldberg Gentle Lady78 inch wing span31 ounces (880 grams) including 6 ounce camera (170 g)2 Channelswww.carlgoldbergproducts.comHere's a short video showing it:http://www.youtube.com/watch?v=755GyoYkUJw
This is a how-to on building a Bungee or Highstart Launcher for model gliders: no gas or electric motors are used just a re-usable length of rubber tubing and some fishing line.
And it's very inexpensive too: less than 30 bucks for a small set up.
I use this to launch my six foot wing-span model glider hundreds of feet in the air. This will also work if you have a gas or electric model plane and wish to conserve fuel at takeoff.
The video above gives you an idea of how this works, launch and release of tow line, including shots from the camera I installed on-board giving us a bird's eye view!
But please read all of the instructions before proceeding.
Successfully flying and landing an RC plane is beyond the scope of this instructable, so in the video I thought I would add some more excitement and show what you don't want to CRASH into! Plus, there's a little how-to on getting your plane out of a tree ;-)
I hope you enjoyed this instructable. Questions, suggestions and comments are welcome!.
No rocket science here. Basically you are using a very big elastic band and some string to catapult your plane into the air!
50 to 100 feet of rubber tubing is anchored to the ground at one end. A tow line is connected to the free end of the tubing.
At the other end of the tow line, you hook on your plane, start walking backwards stretching out the tubing until there is enough tension for launch.
You then throw you plane into the air, and the high-start rapidly hurls it sky ward. As your plane passes over the anchor point, the tow line slips off of the tow hook and the plane is free to fly on it's own.