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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 22 motors that fit and appear to have enough thrust (760 motors didn't fit, 9 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:   Fatter-By
Owner: Bill McCullough
Body Diameter: 2.60in
Dry Weight: 225g
MMT Diameter: 24.0mm
MMT Length: 4.00in
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 D12 268g 53ft/s 141ft/s 10.3G 351ft 5.0s 3s
OK Estes D11 270g 50ft/s 139ft/s 8.9G 364ft 5.2s 3s
OK AeroTech D15 272g 61ft/s 175ft/s 10.2G 423ft 5.0s 4s
OK Cesaroni E22 282g 53ft/s 227ft/s 10.0G 538ft 5.6s 4s
OK Cesaroni E75 277g 105ft/s 274ft/s 33.4G 546ft 5.2s 5s
OK Cesaroni E31 277g 67ft/s 257ft/s 13.9G 589ft 5.6s 5s
warningsW Estes E12 285g 59ft/s 192ft/s 10.8G 620ft 6.5s 4s
OK Estes E30 272g 77ft/s 320ft/s 17.4G 761ft 6.1s 5s
OK AeroTech E20 274g 65ft/s 285ft/s 11.9G 796ft 6.4s 5s
OK AeroTech E28 280g 78ft/s 346ft/s 17.4G 874ft 6.4s 5s
OK AeroTech E30 272g 77ft/s 352ft/s 17.1G 877ft 6.4s 5s
OK AeroTech E18 284g 62ft/s 288ft/s 10.1G 882ft 6.8s 5s
OK AeroTech F44 273g 90ft/s 416ft/s 22.8G 900ft 6.3s 5s
OK AeroTech E15 273g 57ft/s 268ft/s 9.7G 938ft 7.2s 5s
OK AeroTech F12 294g 51ft/s 282ft/s 7.1G 975ft 7.4s 4s
OK AeroTech F30 296g 64ft/s 377ft/s 11.8G 998ft 6.9s 5s
OK Cesaroni F51 298g 86ft/s 426ft/s 21.7G 1,021ft 6.7s 6s
OK AeroTech F39 286g 87ft/s 407ft/s 20.2G 1,041ft 6.8s 5s
OK AeroTech F24 288g 70ft/s 337ft/s 13.6G 1,046ft 7.1s 5s
OK Cesaroni F70 298g 100ft/s 476ft/s 31.7G 1,050ft 6.7s 6s
OK AeroTech F35 310g 81ft/s 428ft/s 18.2G 1,152ft 7.1s 5s
OK AeroTech F32 289g 84ft/s 420ft/s 19.8G 1,168ft 7.2s 5s

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 (47ft/s)
failedG AeroTech D7 speed at end of launch guide too slow (34ft/s)
failedG AeroTech D9 speed at end of launch guide too slow (41ft/s)
failedG Estes E9 speed at end of launch guide too slow (41ft/s)
failedG AeroTech E7 speed at end of launch guide too slow (35ft/s)
failedG AeroTech E11 speed at end of launch guide too slow (46ft/s)
failedG AeroTech E12 speed at end of launch guide too slow (44ft/s)
failedG AeroTech E6 speed at end of launch guide too slow (35ft/s)
failedG Apogee E6 speed at end of launch guide too slow (46ft/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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