H Class Rocket Motor

Cesaroni 253H295-13A

Cesaroni Technology
Smoky Sam
Ø 29mm
Total Impulse
252.7Ns
Burn Time
0.85s
Avg Thrust
296.0N
Max Thrust
359.5N

Thrust Profile (N)

0.85s Burn Window

Engineered by Cesaroni Technology, the 253H295-13A is a 29mm solid rocket motor designed for high-power rocketry (HPR). As an official H-class motor, it delivers a total impulse of 252.7 Ns over a 0.85 second burn window.

With an average thrust of 296.0 N and a peak of 359.5 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 29 mm
Length 320 mm
Hardware Pro29-6G
Delays (s) 4,6,8,10,13
Specific Impulse 145.5 s
Peak Thrust 370 N
Peak Time T+ 0.75s
T/W Ratio 88.23
Propellant Smoky Sam
Profile dual-peak
Type reload
Sparky No

Mass Budget

342g Total
Casing (Dry)
164.9g
48.2%
Propellant
177.1g
51.8%
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...