K Class Rocket Motor

Gorilla K533BL

Gorilla Rocket Motors
Black Lightning
Ø 54mm
Total Impulse
1419.8Ns
Burn Time
2.66s
Avg Thrust
533.4N
Max Thrust
699.5N

Thrust Profile (N)

2.66s Burn Window

Engineered by Gorilla Rocket Motors, the K533BL is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official K-class motor, it delivers a total impulse of 1419.8 Ns over a 2.66 second burn window.

With an average thrust of 533.4 N and a peak of 699.5 N, it features a neutral thrust curve optimal for general sport flying. It utilizes the Black Lightning propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 54 mm
Length 491 mm
Hardware 54/1750
Delays (s) P
Specific Impulse 160.8 s
Peak Thrust 694.2 N
Peak Time T+ 0.75s
T/W Ratio 31.68
Propellant Black Lightning
Profile neutral
Type reload
Sparky Yes

Mass Budget

1716.7g Total
Casing (Dry)
816.7g
47.6%
Propellant
900.0g
52.4%
Live Sizing
Flight Envelope

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Comparable K-Class Alternatives

1176K1720-P

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1281K360-13A

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K456DM

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835CC125J-K240

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SK-54-1750

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Total: 1300 Ns
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K400C

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Total: 1304 Ns
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