J Class Rocket Motor

Gorilla J485WC

Gorilla Rocket Motors
White Cloud
Ø 54mm
Total Impulse
1059.7Ns
Burn Time
2.19s
Avg Thrust
484.0N
Max Thrust
600.0N

Thrust Profile (N)

2.19s Burn Window

Engineered by Gorilla Rocket Motors, the J485WC is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 1059.7 Ns over a 2.19 second burn window.

With an average thrust of 484.0 N and a peak of 600.0 N, it features a neutral thrust curve optimal for general sport flying. It utilizes the White Cloud propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 54 mm
Length 326 mm
Hardware 54/1050
Delays (s) P
Specific Impulse 187.9 s
Peak Thrust 573.82 N
Peak Time T+ 0.8s
T/W Ratio 41.46
Propellant White Cloud
Profile neutral
Type reload
Sparky No

Mass Budget

1190g Total
Casing (Dry)
615.0g
51.7%
Propellant
575.0g
48.3%
Live Sizing
Flight Envelope

Design wings in your spreadsheet

AeroSheet loads airfoils directly into Google Sheets. Polars, 3D splines, Fusion 360 export, without leaving your spreadsheet.

Google Sheets Install in Google Sheets coming soon
Veenie Kit

Need a custom engineering simulator?

The 3D engine on this page is built by Veenie Aerospace. We build bespoke, browser-native digital twins, aerodynamic simulators, and AI physics tools for UAV startups and defense contractors.

Loading calendar...