Total Impulse
2434.9Ns
Burn Time
5.10s
Avg Thrust
475.0N
Max Thrust
885.9N
Thrust Profile (N)
5.10s Burn WindowEngineered by Ellis Mountain, the K475 is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official K-class motor, it delivers a total impulse of 2434.9 Ns over a 5.10 second burn window.
With an average thrust of 475.0 N and a peak of 885.9 N, it features a regressive thrust curve optimal for sustainer stages and high-altitude attempts.
Technical Specifications
Tripoli Rocketry Association, Inc.Diameter 54 mm
Length 664 mm
Hardware Single Use
Delays (s) P
Specific Impulse 219.1 s
Peak Thrust 797.16 N
Peak Time T+ 0.046s
T/W Ratio 22.33
Propellant Standard
Profile regressive
Type reload
Sparky No
Mass Budget
2168g TotalCasing (Dry)
1035.0g
47.7%
Propellant
1133.0g
52.3%
Live Sizing
Flight Envelope
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Comparable K-Class Alternatives
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835CC125J-K240
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K400C
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Total: 1304 Ns
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