Here’s a really cool DIY RC plane powered by a 25cc weed wacker motor! I don’t know if that’s cheaper but a good way to re-use your old weed wacker into something more useful and fun.
I have built a couple of the Aircore brand fold and glue airplanes and used them to learn how to fly, I strongly recommend starting out with one if you want to get into glow engine airplanes.
Balanced properly its a predictable airframe. Due to the simplified flat wing it will tip stall with you at low speeds, so learn how it stalls at high altitude before slowing down for your landing. The ailerons are large enough for a decent roll rate.
Other interesting stuff at Zedomax.com: ailerons, airframe, airplanes, glow engine, glue, rc airplane, weed wacker
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