J Class Rocket Motor

Cesaroni 1043J380-16A

Cesaroni Technology
Smoky Sam
Ø 54mm
Total Impulse
1043.0Ns
Burn Time
2.73s
Avg Thrust
382.0N
Max Thrust
434.6N

Thrust Profile (N)

2.73s Burn Window

Engineered by Cesaroni Technology, the 1043J380-16A is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 1043.0 Ns over a 2.73 second burn window.

With an average thrust of 382.0 N and a peak of 434.6 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Smoky Sam propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Canadian Association of Rocketry
Diameter 54 mm
Length 320 mm
Hardware Pro54-3G
Delays (s) 6,7,8,9,10,11,12,13,14,15,16
Specific Impulse 138.3 s
Peak Thrust 434.6 N
Peak Time T+ 1.8s
T/W Ratio 30.11
Propellant Smoky Sam
Profile dual-peak
Type reload
Sparky No

Mass Budget

1293.3g Total
Casing (Dry)
524.3g
40.5%
Propellant
769.0g
59.5%
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
Comparable J-Class Alternatives

J245-BG

Contrail

J
regressive
Total: 644 Ns
Ø 54mm

440CC076J-J115

Hypertek

J
regressive
Total: 674 Ns
Ø 54mm

J355-BG

Contrail

J
dual-peak
Total: 679 Ns
Ø 54mm

683J250-15A

Cesaroni

J
dual-peak
Total: 683 Ns
Ø 54mm

699J145-19A

Cesaroni

J
regressive
Total: 699 Ns
Ø 54mm

J250W

AeroTech

J
dual-peak
Total: 704 Ns
Ø 54mm
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.

ivan@veenie.space
Loading calendar...
ivan@veenie.space