On Friday, November 15, 2019 at 2:06:32 PM UTC-5, wrote:
I thought this was kind of cool:

https://www.youtube.com/watch?v=_3MgvIdvydM

Yep, I used to not like RC gliders that much, but I've come to appreciate them. It's a little but different skillset to flying them compared to a powered airplane. They were slope flying... the wind coming off the ocean and hitting that hill creates upward lift. As long as the wind doesn't quit, a decent pilot can fly until the batteries run out. Other glider pilots without a hill have to be towed up by one of several means (winch, huge, long rubber band, etc.) or an onboard motor to get them to altitude, then they glide slowly back down unless they can catch a thermal, and then they can ride that back up.

I have, new in the box, a rocket powered glider kit. It uses a solid propellant rocket motor to boost up, then you glide it back down. I bought it but never got the itch to build and fly it. Maybe when I retire.