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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 (760 motors didn't fit, 13 motors failed safety checks). 31 motor had thrust curves available and 54 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:   BadAzz Defender Mk II
Owner: Dave Cannell
Body Diameter: 1.32in
Dry Weight: 7.5oz
MMT Diameter: 24.0mm
MMT Length: 4.50in
CD: 0.50

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 D15 9.2oz 51ft/s 201ft/s 10.8G 683ft 6.7s 5s
OK Cesaroni E75 9.3oz 87ft/s 299ft/s 35.0G 1,030ft 7.7s 7s
warningsW Estes E12 9.6oz 49ft/s 249ft/s 11.4G 1,087ft 8.9s 6s
OK Cesaroni E31 9.3oz 53ft/s 293ft/s 14.6G 1,095ft 8.2s 7s
OK Estes E30 9.2oz 66ft/s 386ft/s 18.3G 1,606ft 9.5s 9s
OK AeroTech E20 9.2oz 57ft/s 363ft/s 12.6G 1,642ft 9.9s 8s
OK AeroTech E18 9.6oz 52ft/s 375ft/s 10.7G 1,838ft 10.4s 8s
OK AeroTech E28 9.5oz 65ft/s 430ft/s 18.3G 1,917ft 10.3s 9s
OK AeroTech E30 9.2oz 65ft/s 441ft/s 18.0G 1,954ft 10.3s 9s
OK AeroTech E15 9.2oz 49ft/s 378ft/s 10.2G 1,957ft 10.9s 8s
OK AeroTech F44 9.2oz 72ft/s 496ft/s 24.8G 2,096ft 10.5s 10s
OK AeroTech F30 10.0oz 56ft/s 480ft/s 13.0G 2,252ft 11.2s 10s
OK AeroTech F24 9.7oz 60ft/s 456ft/s 14.3G 2,331ft 11.4s 9s
OK Cesaroni F51 10.1oz 71ft/s 523ft/s 22.7G 2,380ft 11.2s 10s
OK AeroTech F39 9.6oz 72ft/s 526ft/s 21.3G 2,442ft 11.3s 10s
OK Cesaroni F70 10.1oz 89ft/s 570ft/s 33.1G 2,532ft 11.3s 11s
OK AeroTech F35 10.5oz 68ft/s 556ft/s 19.0G 2,710ft 11.9s 10s
OK AeroTech F32 9.8oz 70ft/s 572ft/s 20.8G 2,797ft 12.1s 10s

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 Estes C11 speed at end of launch guide too slow (41ft/s)
failedG Estes D12 speed at end of launch guide too slow (47ft/s)
failedG Estes D11 speed at end of launch guide too slow (44ft/s)
failedG AeroTech D7 speed at end of launch guide too slow (29ft/s)
failedG AeroTech D9 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni E22 speed at end of launch guide too slow (45ft/s)
failedG Estes E9 speed at end of launch guide too slow (36ft/s)
failedG AeroTech E7 speed at end of launch guide too slow (30ft/s)
failedG AeroTech E11 speed at end of launch guide too slow (38ft/s)
failedG AeroTech E12 speed at end of launch guide too slow (38ft/s)
failedG AeroTech E6 speed at end of launch guide too slow (30ft/s)
failedG Apogee E6 speed at end of launch guide too slow (39ft/s)
failedG AeroTech F12 speed at end of launch guide too slow (42ft/s)

G These simulations were run with a launch guide length of 4ft (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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