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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 25 motors that fit and appear to have enough thrust (762 motors didn't fit, 4 motors failed safety checks). 29 motor had thrust curves available and 52 flight simulations were performed. Browse the motors that did and didn't work right here or download the results as a spreadsheet.

The Rocket

Rocket Name:   Alpha III BT-60
Owner: Jim Lane
Body Diameter: 1.64in
Dry Weight: 6.0oz
MMT Diameter: 24.0mm
MMT Length: 3.75in
CD: 0.60

Motors That Work

These motors fit your rocket and appear to have enough thrust to lift it safely. If thrust curves are available, a quick simulation has been run to give a rough idea of the performance of your rocket on this motor. We encourage you to run a more complete simulation with any motor you plan to use; see the simulators page for more info.

  Motor Weight Launch Velocity Accel Altitude Time Delay
warningsW Estes C11 7.2oz 56ft/s 117ft/s 9.9G 227ft 4.1s 3s
warningsW Estes D12 7.5oz 64ft/s 199ft/s 13.3G 614ft 6.5s 5s
OK Estes D11 7.6oz 60ft/s 199ft/s 11.5G 639ft 6.7s 5s
OK AeroTech D15 7.7oz 71ft/s 235ft/s 13.1G 731ft 6.6s 5s
OK Cesaroni E22 8.0oz 61ft/s 302ft/s 12.6G 938ft 7.3s 6s
OK Cesaroni E75 7.8oz 116ft/s 353ft/s 41.9G 966ft 7.0s 7s
OK Cesaroni E31 7.8oz 72ft/s 340ft/s 17.6G 1,035ft 7.5s 7s
warningsW Estes E12 8.1oz 64ft/s 278ft/s 13.7G 1,077ft 8.3s 6s
OK Estes E9 8.0oz 48ft/s 272ft/s 7.5G 1,115ft 8.9s 6s
OK AeroTech E11 8.2oz 51ft/s 313ft/s 7.4G 1,307ft 8.8s 6s
OK Estes E30 7.7oz 86ft/s 436ft/s 22.1G 1,355ft 8.1s 7s
OK AeroTech E12 8.1oz 50ft/s 317ft/s 7.1G 1,383ft 9.0s 6s
OK AeroTech E20 7.7oz 74ft/s 397ft/s 15.2G 1,406ft 8.5s 7s
OK AeroTech E18 8.1oz 71ft/s 402ft/s 12.8G 1,548ft 8.9s 7s
OK AeroTech E28 8.0oz 92ft/s 473ft/s 21.9G 1,555ft 8.6s 7s
OK AeroTech E30 7.7oz 92ft/s 485ft/s 21.7G 1,565ft 8.5s 7s
OK AeroTech F44 7.7oz 96ft/s 560ft/s 29.5G 1,622ft 8.5s 8s
OK AeroTech E15 7.7oz 66ft/s 392ft/s 12.4G 1,643ft 9.3s 7s
OK AeroTech F12 8.4oz 59ft/s 403ft/s 9.0G 1,695ft 9.5s 7s
warningsW Apogee E6 7.6oz 52ft/s 249ft/s 8.5G 1,707ft 11.4s 5s
OK AeroTech F30 8.5oz 72ft/s 519ft/s 15.0G 1,766ft 9.1s 8s
OK AeroTech F24 8.2oz 77ft/s 474ft/s 17.1G 1,845ft 9.4s 7s
OK AeroTech F39 8.1oz 101ft/s 564ft/s 25.4G 1,857ft 9.1s 8s
OK AeroTech F35 9.0oz 87ft/s 586ft/s 22.3G 2,044ft 9.5s 8s
OK AeroTech F32 8.3oz 94ft/s 593ft/s 24.7G 2,069ft 9.6s 8s

W Motor total weight unknown, lift-off Weight not accurate.

Don't like the units? Login to set your preferences. Don't understand the results? See the motor guide help page.

Motors That Fail

These motors fit your rocket, but failed one safety check or another. They may actually work, but you should use them only with caution. We encourage you to run a more complete simulation to verify flight safety; see the simulators page for more info.

  Motor Reason
failedG AeroTech D7 speed at end of launch guide too slow (40ft/s)
failedG AeroTech D9 speed at end of launch guide too slow (46ft/s)
failedG AeroTech E7 speed at end of launch guide too slow (41ft/s)
failedG AeroTech E6 speed at end of launch guide too slow (42ft/s)

G These simulations were run with a launch guide length of 6ft (rod, rail or tower). If this is not correct, launch guide lengths can be specified for your saved rockets. (The minimum velocity required is approximately 15m/s or 50ft/s.)

Download the Results

The data is presented in a compact form in the tables above, broken down by motors that worked and those that did not. If you would like to analyze the data further, this section provides download links for files in a generic spreadsheet format (comma-separated value, or CSV) that can be opened with almost any spreadsheet program.

CSV Excel   Download full details of the simulation runs with the various motors:
that worked, that failed, or all of them.
 
RockSim   Download the list of motors that fit your rocket into a batch for use with SMARTSim. (See the Simulators page for more info.)

You should download these files to your machine and then open them. Normally, clicking the link will prompt you to do this. However, if your browser insists on opening the file as plain text, you can right-click (control-click on the Mac) on the link and chose Save File As (or similar).

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