This page links to the rocket trajectory nomograms for Estes, Aerotech and Kosdon-by-Aerotech motors.
News: The nomograms have been updated with a new motor description file published in november on the Aerotech website. They now include all current Aerotech and Kosdon-By-Aerotech motors. Other improvements:
| File | Description | English | German | Italian | Spanish | Klingon |
|---|---|---|---|---|---|---|
| Aerotech | Trajectory nomograms for all Aerotech single use and reloadable motors | download | download | download | download | download |
| Estes-Aerotech | Trajectory nomograms for all Aerotech single use and reloadable motors, and the Estes A-D motors. | download | download | download | download | download |
| Kosdon-by-Aerotech | Trajectory nomograms for Kosdon by Aerotech reloads have been placed in a separate file, because it will be useful only for users that have suitable motor hardware. | download | download | download | download | download |
| BC | Trajectory nomograms for Ernst Maurer's BC motor family | download | download | download | download | download |
| Motors | Thrust curves for all Estes, Aerotech and Kosdon-by-Aerotech motors. (Allthough we provide download links for all languages, this diagrams are not localized.) | download | download | download | download | download |
| Templates | Print these templates on a transparency, and draw the point the corresponds to you rocket (mass, diameter, Cd). Then place over the nomograms for the motors that could be used to quickly decide which motor fits your requirements best). | download | download | download | download | download |
| Mirrored templates | This are mirror image versions of the templates. When printed on transparencies, you can draw rockets on the back an more easily erase again, especially if printed with an ink jet printer. | download | download | download | download | download |
Disclaimer: These nomograms are based on certain approxmations that may not be valid in all cases, especially for very fast or strangely shaped rockets. Neither are they suitable for clusters or staging. In addition, rocketry is an inherently dangerous persuit, be sure to observe the safety code when using these nomograms, and consider using an independent alternate method to perform your trajectory calculations, e.g. with software like RockSim or iPowerRocket (for the iPhone and iPod touch).
The italian translation of the nomograms was contributed by Stefano Figini of ACME, the italian Tripoli prefecture.
The spanish translation of the nomograms was contributed by Jose Luis Cortijos, prefect of Tripoli Spain.
The klingon translation of the nomograms was contributd by Lukas Müller, Coauthor of the iPowerRocket rocketry software for the iPhone and the iPod touch.