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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 45 motors that fit and appear to have enough thrust (758 motors didn't fit, 8 motors failed safety checks). 51 motor had thrust curves available and 97 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:   BB II 8 oz BT 60
Owner: John Grove
Body Diameter: 41.6mm
Dry Weight: 8.0oz
MMT Diameter: 29.0mm
MMT Length: 145.0mm
CD: 0.70

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
OK AeroTech E23 11.7oz 16m/s 85m/s 10.8G 310m 7.8s 6s
OK Cesaroni F36 11.7oz 18m/s 120m/s 23.5G 388m 8.2s 7s
OK AeroTech F27 10.8oz 16m/s 119m/s 10.9G 482m 9.2s 7s
OK Cesaroni F36 11.6oz 16m/s 134m/s 12.3G 488m 9.2s 8s
OK AeroTech F62 11.8oz 19m/s 144m/s 18.5G 498m 9.1s 8s
OK Cesaroni F120 11.7oz 28m/s 162m/s 43.2G 509m 8.9s 8s
OK AeroTech F23 10.9oz 18m/s 124m/s 15.1G 513m 9.4s 7s
OK Cesaroni F31 11.6oz 15m/s 140m/s 16.3G 519m 9.3s 7s
OK Cesaroni F59 11.5oz 22m/s 156m/s 21.1G 532m 9.2s 8s
OK AeroTech F42 10.7oz 23m/s 149m/s 22.2G 536m 9.2s 8s
OK AeroTech F20 10.8oz 18m/s 132m/s 15.0G 559m 9.6s 7s
OK AeroTech F67 10.8oz 25m/s 180m/s 27.6G 573m 9.2s 8s
OK AeroTech F26 11.6oz 16m/s 136m/s 10.9G 589m 10.0s 7s
OK AeroTech F50 11.0oz 23m/s 182m/s 22.8G 624m 9.6s 8s
OK AeroTech F52 12.3oz 22m/s 172m/s 22.2G 645m 10.0s 9s
OK AeroTech F25 11.2oz 19m/s 153m/s 17.6G 663m 10.2s 8s
OK Estes F50 11.0oz 22m/s 196m/s 24.5G 682m 9.8s 8s
OK AeroTech F40 12.5oz 19m/s 166m/s 18.7G 689m 10.4s 8s
OK AeroTech G54 12.8oz 20m/s 182m/s 21.9G 693m 10.3s 9s
OK Cesaroni G88 13.4oz 24m/s 206m/s 30.6G 696m 10.1s 9s
OK AeroTech G104 12.8oz 28m/s 209m/s 33.2G 710m 10.1s 9s
OK AeroTech G74 11.1oz 23m/s 233m/s 28.2G 729m 10.0s 9s
OK AeroTech G53 13.1oz 23m/s 191m/s 22.8G 759m 10.6s 9s
OK AeroTech G38 12.4oz 18m/s 173m/s 14.3G 759m 10.8s 8s
OK Cesaroni G80 13.1oz 21m/s 226m/s 26.2G 772m 10.5s 9s
OK AeroTech G77 12.3oz 22m/s 251m/s 27.0G 808m 10.4s 9s
OK AeroTech G77 13.8oz 20m/s 228m/s 22.2G 815m 10.9s 10s
OK Estes G40 12.3oz 21m/s 200m/s 20.3G 827m 10.8s 9s
OK AeroTech G40 12.3oz 21m/s 200m/s 20.3G 828m 10.8s 9s
OK Cesaroni G250 13.0oz 37m/s 292m/s 80.3G 829m 10.3s 10s
OK AeroTech G79 13.5oz 23m/s 235m/s 25.4G 839m 10.8s 9s
OK AeroTech G79 12.4oz 20m/s 239m/s 22.2G 845m 10.7s 9s
OK Cesaroni G83 13.1oz 24m/s 241m/s 26.5G 846m 10.8s 9s
OK Cesaroni G68 13.5oz 21m/s 228m/s 23.5G 858m 11.0s 9s
OK Cesaroni G57 13.1oz 22m/s 217m/s 23.1G 875m 11.1s 9s
OK Cesaroni G126 13.1oz 29m/s 276m/s 42.7G 878m 10.7s 10s
OK AeroTech G76 13.2oz 31m/s 229m/s 40.3G 885m 10.8s 9s
OK AeroTech G125 12.4oz 28m/s 311m/s 41.7G 908m 10.6s 10s
OK AeroTech G64 13.3oz 25m/s 226m/s 28.3G 915m 11.1s 9s
OK AeroTech G78 12.4oz 23m/s 272m/s 28.3G 917m 10.8s 9s
OK AeroTech G80 12.5oz 26m/s 277m/s 29.0G 951m 10.9s 9s
OK AeroTech G25 12.3oz 15m/s 183m/s 11.4G 997m 12.3s 7s
OK AeroTech G138 13.2oz 28m/s 383m/s 43.3G 1,083m 11.1s 10s
warningsD Estes F26 11.6oz 8:1 thrust/weight ratio (no data)
warningsD Estes G80 12.5oz 22:1 thrust/weight ratio (no data)

D No simulation data found for this motor.

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 Estes E16 speed at end of launch guide too slow (12m/s)
failedG AeroTech E16 speed at end of launch guide too slow (14m/s)
failedG Estes F15 speed at end of launch guide too slow (11m/s)
failedG AeroTech F37 speed at end of launch guide too slow (13m/s)
failedG Cesaroni F32 speed at end of launch guide too slow (14m/s)
failedG Cesaroni F29 speed at end of launch guide too slow (13m/s)
failedG AeroTech F22 speed at end of launch guide too slow (13m/s)
failedG Apogee F10 speed at end of launch guide too slow (13m/s)

G These simulations were run with a launch guide length of 1m (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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