K Class Rocket Motor

Contrail K555-BG

Contrail Rockets
Unknown
Ø 54mm
Total Impulse
1686.5Ns
Burn Time
3.04s
Avg Thrust
554.5N
Max Thrust
1200.0N

Thrust Profile (N)

3.04s Burn Window

Engineered by Contrail Rockets, the K555-BG is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official K-class motor, it delivers a total impulse of 1686.5 Ns over a 3.04 second burn window.

With an average thrust of 554.5 N and a peak of 1200.0 N, it features a neutral thrust curve optimal for heavy rockets requiring high off-the-pad acceleration.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 54 mm
Length 1220 mm
Hardware Single Use
Delays (s) P
Specific Impulse 382 s
Peak Thrust 1385.79 N
Peak Time T+ 0.559s
T/W Ratio 27.73
Propellant Standard
Profile neutral
Type hybrid
Sparky No

Mass Budget

2037.9999999999998g Total
Casing (Dry)
1588.0g
77.9%
Propellant
450.0g
22.1%
Live Sizing
Flight Envelope

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