B6-4W Q-Jet™ 2-pack 18mm model rocket motors. Includes initiators and wadding.
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 our exclusive Black Max™ or White Lightning™ aerospace- grade composite propellant formulation, which produces nearly double the specific impulse (or "Isp", a propellant efficiency rating) of conventional black powder propellant. They are not susceptible to thermal cycling like black powder motors. Q-Jets generate a highly-visible exhaust plume and delay smoke trail. All Q-Jets ship with a FirstFire Micro™ 2-lead initiator, which can be used with any launch controller. All Q-Jet motors are U.S. mailable with no hazmat fee!
Specifications:
Motor Diameter: 0.698" (18mm)
Casing Length: 2.75" (70mm)
Total Impulse: 4.9 N-sec
Burn Time: 1.2 seconds
Delay Time: 4 seconds
Propellant Weight: 2.8 grams
Propellant Type: White Lightning
Motor Weight: 19.0 grams
Maximum Liftoff Weight: 85 grams