Total Impulse
1909.0Ns
Burn Time
6.50s
Avg Thrust
293.0N
Max Thrust
690.0N
Thrust Profile (N)
6.50s Burn WindowEngineered by Contrail Rockets, the K300-BS is a 75mm solid rocket motor designed for high-power rocketry (HPR). As an official K-class motor, it delivers a total impulse of 1909.0 Ns over a 6.50 second burn window.
With an average thrust of 293.0 N and a peak of 690.0 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration.
Technical Specifications
Tripoli Rocketry Association, Inc.Diameter 75 mm
Length 1016 mm
Hardware 75 40 S BS (2050CC)
Delays (s) P
Specific Impulse 335.5 s
Peak Thrust 526.94 N
Peak Time T+ 0.324s
T/W Ratio 7.36
Propellant Standard
Profile regressive
Type hybrid
Sparky No
Mass Budget
4059g TotalCasing (Dry)
3479.0g
85.7%
Propellant
580.0g
14.3%
Live Sizing
Flight Envelope
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Comparable K-Class Alternatives
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