AeroTech 6113 Q-Jet Black Max Composite Model Rocket Motor - B4-6FJ 2 Pack (Ships USPS Ground) TV Plastic Separately applied ladders with bracing

Separately applied ladders with bracing

Rear A-Arms Right and Left

Metal wishbone covers to prevent the pivot ball from pulling out of the arms

Low-Power Usage

AeroTech 6113 Q-Jet Black Max Composite Model Rocket Motor - B4-6FJ 2 Pack (Ships USPS Ground) TV Plastic Separately applied ladders with bracingAeroTech 6113 Q Jet Black Max Composite Model Rocket Motor B4 6FJ 2 Pack Ships USPS Ground The Q Jets are the worlds 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 propellant.