H Class Rocket Motor

Cesaroni 273H225-14A

Cesaroni Technology
White Thunder
Ø 38mm
Total Impulse
273.2Ns
Burn Time
1.21s
Avg Thrust
226.3N
Max Thrust
254.1N

Thrust Profile (N)

1.21s Burn Window

Engineered by Cesaroni Technology, the 273H225-14A is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official H-class motor, it delivers a total impulse of 273.2 Ns over a 1.21 second burn window.

With an average thrust of 226.3 N and a peak of 254.1 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the White Thunder propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Canadian Association of Rocketry
Diameter 38 mm
Length 186 mm
Hardware Pro38-2G
Delays (s) 5,7,9,11,14
Specific Impulse 225.3 s
Peak Thrust 263.79 N
Peak Time T+ 0.003s
T/W Ratio 119.54
Propellant White Thunder
Profile dual-peak
Type reload
Sparky No

Mass Budget

193g Total
Casing (Dry)
69.4g
36.0%
Propellant
123.6g
64.0%
Live Sizing
Flight Envelope

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