Darrell Biser of Brookville twists the propeller of his remote control plane to start the engine as another plane taxis behind him for take off Saturday at Bungee Park west of Celina. The planes were flying in the 20th annual Celina Flying Sportsmen Big Bird Fly-In. Planes flown in the event had to be over 80 inches in wing span or a quarter the size of the full-scale aircraft they emulate. Some models were capable of 200 mph speeds.