AeroTech 6117 Q-Jet Black Max Composite Model Rocket Motor - C12-6FJ 2 Pack (Ships USPS Ground) ReefsParts Arrma ARA320519

Arrma ARA320519

75 in (19mm)

New flip-top cap

The trucks were Class 2E-F22A

AeroTech 6117 Q-Jet Black Max Composite Model Rocket Motor - C12-6FJ 2 Pack (Ships USPS Ground) ReefsParts Arrma ARA320519AeroTech 6117 Q Jet Black Max Composite Model Rocket Motor C12 6FJ 2 Pack Ships USPS Ground The Q Jets are the world's most advanced 18mm model rocket motors. They utilize a patent pending high strength polymer case and bulkhead, ceramic nozzle and RCSs exclusive Black Max aerospace grade composite propellant formulation, which produces nearly double the specific impulse (or "Isp", a propellant efficiency rating) of conventional black powder