D Class Rocket Motor

Estes D12

Estes Industries
black powder
Ø 24mm
Total Impulse
16.8Ns
Burn Time
1.65s
Avg Thrust
10.2N
Max Thrust
29.7N

Thrust Profile (N)

1.65s Burn Window

Engineered by Estes Industries, the D12 is a 24mm solid rocket motor designed for model rocketry. As an official D-class motor, it delivers a total impulse of 16.8 Ns over a 1.65 second burn window.

With an average thrust of 10.2 N and a peak of 29.7 N, it features a neutral 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 24 mm
Length 70 mm
Hardware Single Use
Delays (s) 0,3,5,7
Specific Impulse 81.4 s
Peak Thrust 29.73 N
Peak Time T+ 0.282s
T/W Ratio 23.65
Propellant black powder
Profile neutral
Type SU
Sparky No

Mass Budget

44g Total
Casing (Dry)
22.9g
52.0%
Propellant
21.1g
48.0%
Live Sizing
Flight Envelope

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