G Class Rocket Motor

AeroTech G75J

AeroTech
Blackjack
Ø 29mm
Total Impulse
135.6Ns
Burn Time
2.43s
Avg Thrust
75.0N
Max Thrust
70.3N

Thrust Profile (N)

2.43s Burn Window

Engineered by AeroTech, the G75J is a 29mm solid rocket motor designed for model rocketry. As an official G-class motor, it delivers a total impulse of 135.6 Ns over a 2.43 second burn window.

With an average thrust of 75.0 N and a peak of 70.3 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Blackjack propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 29 mm
Length 194 mm
Hardware RMS-29/180
Delays (s) 4,6,8,10
Specific Impulse 132.5 s
Peak Thrust 78.85 N
Peak Time T+ 1.197s
T/W Ratio 32.82
Propellant Blackjack
Profile dual-peak
Type reload
Sparky No

Mass Budget

232.96g Total
Casing (Dry)
128.7g
55.2%
Propellant
104.3g
44.8%
Live Sizing
Flight Envelope

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