A Research N800 in my 40" saucer. Liftoff weight was 45 lb., of which 27 lb. was the motor. Altimeters in the side pods were set to deploy parachutes at 250 feet on the way back down, no apogee event as the motor is still burning. Only one chute opened. The saucer reached an altitude of only 1000 feet on the N motor.