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B6-4 Q-Jet Model Rocket Engine
2 pack of B6-4W Q-Jet™ model rocket engines. Includes igniters and recovery wadding. 18mm size designed to fit a standard T-20 size tube/engine mount (same size as standard Estes A thru C engines).
Note: we can only ship this item by ground to the Continental US.
A few states have age restrictions to purchase model rocket engines, click here for more info.
Diameter: 0.698” (18mm)
Length: 2.75” (70mm)
Propellant: White Lightning (W)
Total Impulse: 4.9 N-sec
Burn Time: 1.2 sec
DelayTime: 4 sec
Propellant Weight: 2.8 g (.10 oz.)
Loaded Weight: 19 g (.67 oz.)
Maximum Liftoff Weight: 85 g (3 oz)