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3 pack of B power model rocket motors designed for use in model rockets with an 18mm engine mount. Comes with the legendary top of the line Quest Q2G2 igniter, the most reliable igniter ever. Comparable (interchangeable) with the Estes B6-4 motor :
Estes B6-4 model rocket motor
Specs:
Qty: 3 Profile: Single Use: Diameter: 18mm Length: 70mm Hardware Required: None Propellant: Black Powder Total Impulse: 5.0 N-secs Burn Time: 0.83 secs Delay (coasting) Time: 4 secs Assembled Wgt: 20g Propellant Weight: 6.5g Max. Lift Off Weight: 113g (guideline only) You require: Model Rocket Recovery Wadding