F-A-S-T again! Lost sight of it. Heard it eject the motor. Heard the motor. Rocket was given up for lost after a long search. Later in the afternoon we found that the motor had falled the opposite side of the launch zone from the rocket. Rocket was found by another person who kindly brought it back to us. Rocket is semi-retired until we figure out a way to spot it! Maybe a Quest Micro Engine Candidate?