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J-265
Precision CNC-machined 54mm Class J reloadable motor. 1571g loaded, 2.91s burn — aerospace-grade hardware, every part sold as its own spare.
How to use in OpenRocket: Motors & Configuration → Edit motors → Import → select the downloaded file. Run a full simulation before any real flight — the Rough Apogee Estimator below is only a simplified back-of-envelope figure.
Rough Apogee Estimator
A quick, simplified estimate — no substitute for real simulation software
About This Product
Motor J265 — Precision CNC Machined High-Performance Rocket Motor. Elevate your rocketry projects with our high-performance, precision CNC machined Motor J265. Designed for serious hobbyists and professionals, this motor combines aerospace-grade materials, precision engineering, and reliable sealing technology to deliver exceptional performance and durability.
Perfect for enthusiasts seeking reliable and powerful thrust, our meticulously engineered Motor J265 meets the highest standards of rocketry performance. Unleash your potential and reach new heights with this essential component.
Performance & Dimensions
Full spec sheet
Component List
Hardware (dry) + Fuel/Oxidiser (propellant) = Total Wet Weight
| # | Component | Material | Qty | Weight (g) |
|---|---|---|---|---|
| 1 | Casing | Aerospace Grade Aluminium | 1 | 457 |
| 2 | Nozzle | Graphite | 1 | 144 |
| 3 | Forward Closure | Aerospace Grade Aluminium | 1 | 32 |
| 4 | Nozzle Retention Ring | Aerospace Grade SS | 1 | 5 |
| 5 | Casting Tube | Sack Kraft Paper Tube | 1 | 28 |
| 6 | Liner | Sack Kraft Paper Tube | 1 | 44 |
| 7 | O-Rings | Viton | 2 | 3 |
| 8 | Circlip | Spring Steel | 2 | 12 |
| Total Dry Weight (Hardware) | 725 g | |||
| 9 | Fuel | Dextrose | 1 | 296 |
| 10 | Oxidiser | Rocketeers Ox Mix | 1 | 550 |
| Total Wet Weight (Hardware + Propellant) | 1571 g | |||
This Product Consists Of
Every part is its own listing