H Class Rocket Motor

Cesaroni 261H120-14A

Cesaroni Technology
Red Lightning
Ø 38mm
Total Impulse
260.7Ns
Burn Time
2.15s
Avg Thrust
121.4N
Max Thrust
149.4N

Thrust Profile (N)

2.15s Burn Window

Engineered by Cesaroni Technology, the 261H120-14A is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official H-class motor, it delivers a total impulse of 260.7 Ns over a 2.15 second burn window.

With an average thrust of 121.4 N and a peak of 149.4 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Red Lightning 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 195.4 s
Peak Thrust 147.68 N
Peak Time T+ 0.313s
T/W Ratio 41.95
Propellant Red Lightning
Profile dual-peak
Type reload
Sparky No

Mass Budget

295g Total
Casing (Dry)
159.0g
53.9%
Propellant
136.0g
46.1%
Live Sizing
Flight Envelope

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Comparable H-Class Alternatives

H155F

Kosdon

H
dual-peak
Total: 161 Ns
Ø 29mm

H300-HP

Contrail

H
neutral
Total: 161 Ns
Ø 38mm

H222-HP

Contrail

H
regressive
Total: 161 Ns
Ø 38mm

H55W

AeroTech

H
regressive
Total: 162 Ns
Ø 29mm

163H133-14A

Cesaroni

H
dual-peak
Total: 163 Ns
Ø 29mm

164H90-12A

Cesaroni

H
dual-peak
Total: 164 Ns
Ø 29mm
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