A Class Rocket Motor

Estes A8

Estes Industries
black powder
Ø 18mm
Total Impulse
2.5Ns
Burn Time
0.73s
Avg Thrust
3.2N
Max Thrust
9.7N

Thrust Profile (N)

0.73s Burn Window

Engineered by Estes Industries, the A8 is a 18mm solid rocket motor designed for model rocketry. As an official A-class motor, it delivers a total impulse of 2.5 Ns over a 0.73 second burn window.

With an average thrust of 3.2 N and a peak of 9.7 N, it features a dual-peak thrust curve optimal for heavy rockets requiring high off-the-pad acceleration. It utilizes the black powder propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

National Association of Rocketry
Diameter 18 mm
Length 70 mm
Hardware Single Use
Delays (s) 0,3,5
Specific Impulse 77.2 s
Peak Thrust 9.55 N
Peak Time T+ 0.246s
T/W Ratio 19.89
Propellant black powder
Profile dual-peak
Type SU
Sparky No

Mass Budget

16.3g Total
Casing (Dry)
13.0g
79.8%
Propellant
3.3g
20.2%
Live Sizing
Flight Envelope

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