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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 35 motors that fit and appear to have enough thrust (738 motors didn't fit, 18 motors failed safety checks). 51 motor had thrust curves available and 94 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:   Cherokee G
Owner: Robert Aldrich
Body Diameter: 2.60in
Dry Weight: 20.0oz
MMT Diameter: 29.0mm
MMT Length: 6.00in
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
OK AeroTech F62 23.8oz 56ft/s 225ft/s 8.6G 674ft 6.5s 6s
OK Cesaroni F120 23.7oz 84ft/s 257ft/s 20.8G 721ft 6.5s 6s
OK Cesaroni F59 23.5oz 59ft/s 244ft/s 9.8G 742ft 6.8s 6s
OK AeroTech F42 22.7oz 60ft/s 228ft/s 9.9G 743ft 6.8s 5s
OK AeroTech F50 23.0oz 61ft/s 286ft/s 10.4G 968ft 7.5s 6s
OK AeroTech F25 23.2oz 54ft/s 244ft/s 7.9G 990ft 8.0s 5s
OK AeroTech F52 24.3oz 64ft/s 283ft/s 10.7G 995ft 7.7s 6s
OK AeroTech F40 24.5oz 57ft/s 276ft/s 9.0G 1,072ft 8.1s 6s
warningsW Estes F50 22.9oz 63ft/s 315ft/s 11.3G 1,113ft 8.0s 7s
OK AeroTech G54 24.8oz 61ft/s 308ft/s 10.8G 1,114ft 8.1s 7s
OK Cesaroni G88 25.4oz 69ft/s 345ft/s 15.5G 1,153ft 8.0s 7s
OK AeroTech G104 24.8oz 78ft/s 352ft/s 16.7G 1,187ft 8.0s 7s
OK AeroTech G38 24.4oz 49ft/s 290ft/s 6.8G 1,221ft 8.8s 6s
OK AeroTech G74 23.1oz 67ft/s 371ft/s 13.1G 1,246ft 8.3s 7s
OK AeroTech G53 25.1oz 66ft/s 329ft/s 11.4G 1,280ft 8.6s 7s
OK Cesaroni G80 25.1oz 62ft/s 382ft/s 13.2G 1,325ft 8.5s 7s
OK AeroTech G77 25.8oz 57ft/s 394ft/s 11.5G 1,417ft 8.9s 8s
warningsW Estes G40 24.3oz 59ft/s 344ft/s 9.8G 1,431ft 9.0s 7s
OK AeroTech G40 24.3oz 59ft/s 344ft/s 9.8G 1,431ft 9.0s 7s
OK AeroTech G77 24.3oz 63ft/s 419ft/s 13.4G 1,463ft 8.8s 8s
OK AeroTech G79 25.5oz 67ft/s 409ft/s 12.9G 1,500ft 9.0s 8s
OK Cesaroni G83 25.1oz 71ft/s 416ft/s 13.4G 1,511ft 9.0s 8s
OK Cesaroni G68 25.5oz 61ft/s 398ft/s 12.0G 1,521ft 9.1s 7s
OK AeroTech G79 24.4oz 56ft/s 408ft/s 10.9G 1,530ft 9.2s 7s
OK Cesaroni G250 25.0oz 110ft/s 491ft/s 40.7G 1,540ft 8.6s 8s
OK Cesaroni G57 25.1oz 63ft/s 382ft/s 11.6G 1,543ft 9.3s 7s
OK AeroTech G76 25.2oz 87ft/s 409ft/s 20.5G 1,625ft 9.1s 7s
OK Cesaroni G126 25.1oz 83ft/s 477ft/s 21.8G 1,631ft 9.0s 8s
OK AeroTech G64 25.3oz 72ft/s 403ft/s 14.4G 1,674ft 9.4s 7s
OK AeroTech G75 24.6oz 69ft/s 445ft/s 13.7G 1,705ft 9.4s 7s
OK AeroTech G78 24.4oz 66ft/s 468ft/s 13.9G 1,737ft 9.4s 8s
OK AeroTech G125 24.4oz 80ft/s 528ft/s 20.9G 1,765ft 9.2s 8s
OK AeroTech G80 24.5oz 73ft/s 484ft/s 14.3G 1,829ft 9.5s 8s
OK AeroTech G138 25.2oz 80ft/s 675ft/s 23.4G 2,230ft 10.0s 9s
warningsW,D Estes G80 24.4oz 11:1 thrust/weight ratio (no data)

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

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 (32ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (43ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (35ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (44ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (42ft/s)
failedG Estes F15 speed at end of launch guide too slow (29ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (44ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (42ft/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (4:1)
failedG AeroTech F26 speed at end of launch guide too slow (41ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (35ft/s)
failedG Apogee F10 speed at end of launch guide too slow (32ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (43ft/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.)

5 The 5:1 thrust-to-weight ratio check is a useful rule of thumb, but it does break down for motors with unusual thrust curves. For example, motors with a high initial thrust and a long tail-off may fail this test but still be safe for use.

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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