J Class Rocket Motor

AeroTech J825R

AeroTech
Redline
Ø 38mm
Total Impulse
974.9Ns
Burn Time
1.15s
Avg Thrust
892.9N
Max Thrust
1244.3N

Thrust Profile (N)

1.15s Burn Window

Engineered by AeroTech, the J825R is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 974.9 Ns over a 1.15 second burn window.

With an average thrust of 892.9 N and a peak of 1244.3 N, it features a regressive thrust curve optimal for general sport flying. It utilizes the Redline propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 478 mm
Hardware RMS-38/1080
Delays (s) 4,6,8,10
Specific Impulse 198.8 s
Peak Thrust 1202.98 N
Peak Time T+ 0.018s
T/W Ratio 104.02
Propellant Redline
Profile regressive
Type reload
Sparky No

Mass Budget

875g Total
Casing (Dry)
375.0g
42.9%
Propellant
500.0g
57.1%
Live Sizing
Flight Envelope

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