They are using a plane to basically launch another plane. There are guys that use rc planes to tow up rc gliders.
When I was into rocketry I had a glider that launched and the parachute charge fromthe engine would eject the engine and set the stabilizer and rudder to glide in a large circle instead of go straight up. The first time I launched it it went up perfectly. It arched over like it was supposed to, then it headed straight for the ground. Abput 2 feet off the ground the eject charge went off blasting the glider a foot into the ground. Turned out I had accidentally used an engine with too long of a eject delay.
My next glider rocket was called the Orbital Transport. It was a larger rocket that carried a smaller delta wing glider up. It would arch over, the glider would slide off and fly down and the rocket would pop a chute. It was cool, but when you launched it there were 2 things to chase down.
