I Class Rocket Motor

Cesaroni 538I303-16A

Cesaroni Technology
Blue Streak
Ø 38mm
Total Impulse
537.6Ns
Burn Time
1.77s
Avg Thrust
303.2N
Max Thrust
415.6N

Thrust Profile (N)

1.77s Burn Window

Engineered by Cesaroni Technology, the 538I303-16A is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 537.6 Ns over a 1.77 second burn window.

With an average thrust of 303.2 N and a peak of 415.6 N, it features a regressive thrust curve optimal for general sport flying. It utilizes the Blue Streak propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 302 mm
Hardware Pro38-4G
Delays (s) 7,9,11,13,16
Specific Impulse 203 s
Peak Thrust 415.76 N
Peak Time T+ 0.035s
T/W Ratio 61.81
Propellant Blue Streak
Profile regressive
Type reload
Sparky No

Mass Budget

500g Total
Casing (Dry)
230.0g
46.0%
Propellant
270.0g
54.0%
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 I-Class Alternatives

I235WC

Gorilla

I
No Curve Data
Total: 324 Ns
Ø 38mm

I200W

AeroTech

I
regressive
Total: 325 Ns
Ø 29mm

I180W

AeroTech

I
dual-peak
Total: 326 Ns
Ø 38mm

I385F

Kosdon

I
No Curve Data
Total: 326 Ns
Ø 29mm

I223GT

Gorilla

I
neutral
Total: 328 Ns
Ø 38mm

I161W

AeroTech

I
dual-peak
Total: 329 Ns
Ø 38mm
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