K Class Rocket Motor

Contrail K543-BS

Contrail Rockets
Unknown
Ø 76mm
Total Impulse
2096.0Ns
Burn Time
3.60s
Avg Thrust
586.0N
Max Thrust
2128.5N

Thrust Profile (N)

3.60s Burn Window

Engineered by Contrail Rockets, the K543-BS is a 76mm solid rocket motor designed for high-power rocketry (HPR). As an official K-class motor, it delivers a total impulse of 2096.0 Ns over a 3.60 second burn window.

With an average thrust of 586.0 N and a peak of 2128.5 N, it features a neutral thrust curve optimal for heavy rockets requiring high off-the-pad acceleration.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 76 mm
Length 813 mm
Hardware Single Use
Delays (s) P
Specific Impulse 427.3 s
Peak Thrust 900 N
Peak Time
T/W Ratio 16.57
Propellant Standard
Profile neutral
Type hybrid
Sparky No

Mass Budget

3606g Total
Casing (Dry)
3106.0g
86.1%
Propellant
500.0g
13.9%
Live Sizing
Flight Envelope

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