G Class Rocket Motor

Cesaroni 129G79-13A

Cesaroni Technology
Smoky Sam
Ø 38mm
Total Impulse
129.0Ns
Burn Time
1.63s
Avg Thrust
79.9N
Max Thrust
95.8N

Thrust Profile (N)

1.63s Burn Window

Engineered by Cesaroni Technology, the 129G79-13A is a 38mm solid rocket motor designed for model rocketry. As an official G-class motor, it delivers a total impulse of 129.0 Ns over a 1.63 second burn window.

With an average thrust of 79.9 N and a peak of 95.8 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Smoky Sam propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Canadian Association of Rocketry
Diameter 38 mm
Length 125 mm
Hardware Pro38-1G
Delays (s) 4,6,8,10,13
Specific Impulse 159 s
Peak Thrust 95.81 N
Peak Time T+ 1.1s
T/W Ratio 36.04
Propellant Smoky Sam
Profile dual-peak
Type reload
Sparky No

Mass Budget

226g Total
Casing (Dry)
143.3g
63.4%
Propellant
82.7g
36.6%
Live Sizing
Flight Envelope

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Comparable G-Class Alternatives

G54W

AeroTech

G
dual-peak
Total: 81 Ns
Ø 29mm

G104T

AeroTech

G
regressive
Total: 82 Ns
Ø 29mm

G74W

AeroTech

G
neutral
Total: 83 Ns
Ø 29mm

84G88-11A

Cesaroni

G
dual-peak
Total: 84 Ns
Ø 29mm

G142

AeroTech

G
neutral
Total: 84 Ns
Ø 29mm

G63

SkyR

G
regressive
Total: 85 Ns
Ø 29mm
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