G Class Rocket Motor

Roadrunner G80

Roadrunner Rocketry
Rapid propellant
Ø 29mm
Total Impulse
108.0Ns
Burn Time
1.40s
Avg Thrust
80.0N
Max Thrust
114.0N

Thrust Profile (N)

1.40s Burn Window

Engineered by Roadrunner Rocketry, the G80 is a 29mm solid rocket motor designed for model rocketry. As an official G-class motor, it delivers a total impulse of 108.0 Ns over a 1.40 second burn window.

With an average thrust of 80.0 N and a peak of 114.0 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Rapid propellant propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

National Association of Rocketry
Diameter 29 mm
Length 140 mm
Hardware SU 29x140
Delays (s) 4,7,10
Specific Impulse 201.3 s
Peak Thrust 112.75 N
Peak Time T+ 0.622s
T/W Ratio 60.41
Propellant Rapid propellant
Profile dual-peak
Type SU
Sparky No

Mass Budget

135g Total
Casing (Dry)
80.3g
59.5%
Propellant
54.7g
40.5%
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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