This year I celebrated Easter with something special, mounting an 18mm rocket tube - roman candle- on a TBS Discovery quadcopter. The quadcopter was shooting exploding rounds with about 200 Jules of energy on every shot. Notice the huge recoil and fireball on the quad, on every shot I had to struggle to keep it in flight. My fpv cam wouldn't see well enought in the pitch dark so the flight was done LOS not fpv.