J Class Rocket Motor

Cesaroni 949J150-P

Cesaroni Technology
Mellow
Ø 38mm
Total Impulse
949.2Ns
Burn Time
6.40s
Avg Thrust
148.4N
Max Thrust
343.2N

Thrust Profile (N)

6.40s Burn Window

Engineered by Cesaroni Technology, the 949J150-P is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 949.2 Ns over a 6.40 second burn window.

With an average thrust of 148.4 N and a peak of 343.2 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration. It utilizes the Mellow propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Canadian Association of Rocketry
Diameter 38 mm
Length 500 mm
Hardware Pro38-6GXL
Delays (s) P
Specific Impulse 170.4 s
Peak Thrust 324.58 N
Peak Time T+ 0.03s
T/W Ratio 15.91
Propellant Mellow
Profile regressive
Type reload
Sparky No

Mass Budget

951g Total
Casing (Dry)
383.3g
40.3%
Propellant
567.7g
59.7%
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.

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...