Although not the first to try and build a DIY solar-powered remote control airplane, [ProjectAir]’s recent attempt is the most significant one in recent memory. It follows [rctestflight]’s ...

meet to practice fancy flights with remote-controlled airplanes. "Every time you come out, you can do something different. You can learn to do something else with a plane," Ed Brown said.

The full video series can be found on the Ramy RC channel. The final RC airplane came out at a massive wingspan of 3.9 meters (12.7′), a length of 3.6 meters (11.8′) and a weight of 25 kg.