These are unflown Rock-A-Chute 4-4 and 4-4-2 flying rocket motors made by Orville Carlisle. They are made of pasteboard and contain non-explosive propellant. The motors were made at some time during the late 1950s during the early years of the development of flying rocket models. A motor is used only once to power a model rocket. G. Harry Stine, a pioneer in the field of flying rocket models, donated theses artifacts to NASM in 1973.
Gift of G. Harry Stine