Total Impulse
4.9Ns
Burn Time
1.10s
Avg Thrust
4.4N
Max Thrust
7.5N
Thrust Profile (N)
1.10s Burn WindowEngineered by Quest Aerospace, the B4 is a 18mm solid rocket motor designed for model rocketry. As an official B-class motor, it delivers a total impulse of 4.9 Ns over a 1.10 second burn window.
With an average thrust of 4.4 N and a peak of 7.5 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Black Max propellant formulation, dictating its specific impulse and exhaust signature.
Technical Specifications
Tripoli Rocketry Association, Inc.Diameter 18 mm
Length 81 mm
Hardware Single Use
Delays (s) 4,6
Specific Impulse 137.6 s
Peak Thrust 7.2 N
Peak Time T+ 0.298s
T/W Ratio 22.65
Propellant Black Max
Profile dual-peak
Type SU
Sparky No
Mass Budget
19.8g TotalCasing (Dry)
16.2g
81.8%
Propellant
3.6g
18.2%
Live Sizing
Flight Envelope
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