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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 18 motors that fit and appear to have enough thrust (754 motors didn't fit, 19 motors failed safety checks). 37 motor had thrust curves available and 66 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:   Brenda
Owner: David Brown
Body Diameter: 3.00in
Dry Weight: 13.8oz
MMT Diameter: 24.0mm
MMT Length: 8.00in
CD: 0.08

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 Cesaroni E75 15.6oz 76ft/s 173ft/s 20.5G 463ft 5.5s 5s
OK Estes E30 15.5oz 55ft/s 222ft/s 10.4G 808ft 7.3s 6s
OK AeroTech E28 15.8oz 57ft/s 254ft/s 10.6G 1,054ft 8.4s 7s
OK AeroTech E30 15.5oz 56ft/s 258ft/s 10.2G 1,078ft 8.4s 7s
OK AeroTech F44 15.5oz 63ft/s 290ft/s 14.3G 1,225ft 8.9s 8s
OK AeroTech F30 16.3oz 48ft/s 288ft/s 7.6G 1,335ft 9.5s 8s
OK AeroTech F24 16.0oz 50ft/s 277ft/s 8.3G 1,371ft 9.7s 8s
OK Cesaroni F51 16.4oz 61ft/s 320ft/s 13.6G 1,491ft 9.7s 9s
OK AeroTech F39 15.9oz 61ft/s 319ft/s 12.4G 1,535ft 9.9s 9s
OK Cesaroni F70 16.4oz 77ft/s 350ft/s 20.0G 1,667ft 10.1s 9s
OK AeroTech F35 16.8oz 58ft/s 349ft/s 11.5G 1,812ft 10.7s 9s
OK AeroTech F32 16.1oz 60ft/s 353ft/s 12.2G 1,887ft 11.1s 9s
OK Cesaroni F50 17.1oz 61ft/s 365ft/s 13.4G 1,892ft 10.9s 10s
OK Cesaroni F79 17.6oz 74ft/s 426ft/s 18.4G 2,291ft 11.7s 11s
OK Cesaroni F240 17.0oz 131ft/s 461ft/s 59.8G 2,406ft 11.7s 11s
OK Cesaroni F30 17.4oz 57ft/s 401ft/s 10.2G 2,506ft 12.7s 10s
OK Cesaroni F85 17.2oz 80ft/s 470ft/s 20.8G 2,622ft 12.4s 12s
OK Cesaroni F51 17.2oz 68ft/s 453ft/s 16.5G 2,695ft 12.8s 11s

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 C11 speed at end of launch guide too slow (29ft/s)
failedG Estes D12 speed at end of launch guide too slow (33ft/s)
failedG Estes D11 speed at end of launch guide too slow (31ft/s)
failedG AeroTech D7 speed at end of launch guide too slow (22ft/s)
failedG AeroTech D9 speed at end of launch guide too slow (30ft/s)
failedG AeroTech D15 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni E22 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni E31 speed at end of launch guide too slow (47ft/s)
failedG Estes E12 speed at end of launch guide too slow (38ft/s)
failedG Estes E9 speed at end of launch guide too slow (25ft/s)
failedG AeroTech E7 speed at end of launch guide too slow (22ft/s)
failedG AeroTech E11 speed at end of launch guide too slow (32ft/s)
failedG AeroTech E12 speed at end of launch guide too slow (31ft/s)
failedG AeroTech E20 speed at end of launch guide too slow (47ft/s)
failedG AeroTech E18 speed at end of launch guide too slow (43ft/s)
failedG AeroTech E6 speed at end of launch guide too slow (23ft/s)
failedG Apogee E6 speed at end of launch guide too slow (30ft/s)
failedG AeroTech E15 speed at end of launch guide too slow (39ft/s)
failedG AeroTech F12 speed at end of launch guide too slow (36ft/s)

G These simulations were run with a launch guide length of 5ft (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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