If you want to build your own controller, the schematics and software is up on RC Groups. Check out the Solar Bear in action, flown here by [AJWoods]. We’ve previously covered solar plane ...
The folks at Flitetest decided to add some extra power to an electric DH.100 Vampire RC plane by adding a butane afterburner. After some testing, and a bit of fire, they were able to make it fly.
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