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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 59 motors that fit and appear to have enough thrust (684 motors didn't fit, 48 motors failed safety checks). 105 motor had thrust curves available and 208 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:   Unguided Mayhem 29mm
Owner: Jim Lane
Body Diameter: 4.00in
Dry Weight: 57.0oz
MMT Diameter: 29.0mm
MMT Length: 13.00in
CD: 0.80

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 G104 61.8oz 55ft/s 128ft/s 6.1G 282ft 4.4s 4s
OK AeroTech G79 62.5oz 48ft/s 150ft/s 4.7G 393ft 5.4s 4s
OK Cesaroni G83 62.1oz 49ft/s 152ft/s 4.8G 396ft 5.4s 4s
OK Cesaroni G250 62.0oz 84ft/s 189ft/s 15.7G 448ft 5.2s 5s
OK AeroTech G76 62.2oz 58ft/s 153ft/s 7.7G 453ft 5.6s 4s
OK AeroTech G64 62.3oz 50ft/s 149ft/s 5.2G 460ft 5.8s 3s
OK Cesaroni G126 62.1oz 61ft/s 181ft/s 8.2G 470ft 5.5s 5s
OK Cesaroni G131 64.1oz 58ft/s 191ft/s 7.4G 510ft 5.8s 5s
OK AeroTech G125 61.4oz 60ft/s 199ft/s 7.9G 534ft 5.8s 5s
OK AeroTech G80 61.5oz 49ft/s 180ft/s 5.1G 540ft 6.1s 4s
OK Cesaroni G106 63.6oz 49ft/s 202ft/s 6.4G 579ft 6.2s 5s
OK KBA G135 65.0oz 55ft/s 218ft/s 7.7G 615ft 6.3s 5s
OK Cesaroni G54 63.8oz 50ft/s 174ft/s 5.8G 699ft 7.2s 4s
OK Cesaroni G118 63.6oz 56ft/s 233ft/s 7.8G 720ft 6.8s 5s
OK Cesaroni G125 63.9oz 61ft/s 236ft/s 8.1G 723ft 6.8s 5s
OK AeroTech H165 64.1oz 69ft/s 248ft/s 9.7G 735ft 6.7s 6s
OK Cesaroni H133 63.7oz 63ft/s 242ft/s 9.8G 750ft 6.8s 6s
OK Cesaroni H175 65.7oz 69ft/s 257ft/s 11.4G 757ft 6.7s 6s
OK Cesaroni H90 62.7oz 54ft/s 226ft/s 7.9G 759ft 7.1s 5s
OK Cesaroni H87 64.2oz 49ft/s 223ft/s 6.2G 759ft 7.2s 5s
OK Cesaroni H163 63.6oz 67ft/s 259ft/s 11.3G 778ft 6.9s 6s
OK AeroTech G138 62.2oz 58ft/s 264ft/s 9.3G 787ft 6.9s 6s
OK Cesaroni H410 63.4oz 111ft/s 288ft/s 28.4G 792ft 6.6s 6s
OK AeroTech H128 64.3oz 66ft/s 256ft/s 9.2G 798ft 7.0s 6s
OK Cesaroni H123 65.0oz 55ft/s 254ft/s 6.7G 809ft 7.2s 6s
OK AeroTech H238 63.9oz 77ft/s 272ft/s 12.3G 819ft 6.9s 6s
OK AeroTech H115 64.2oz 54ft/s 251ft/s 5.9G 829ft 7.3s 6s
OK AeroTech H97 66.8oz 49ft/s 244ft/s 4.9G 850ft 7.6s 5s
OK Cesaroni H118 65.2oz 60ft/s 259ft/s 8.4G 878ft 7.3s 6s
OK Cesaroni H237 67.4oz 78ft/s 319ft/s 14.0G 980ft 7.4s 6s
OK AeroTech H220 65.8oz 82ft/s 318ft/s 15.8G 992ft 7.4s 6s
OK Cesaroni H151 65.4oz 70ft/s 298ft/s 10.2G 1,000ft 7.6s 6s
OK AeroTech H210 65.7oz 77ft/s 322ft/s 13.1G 1,010ft 7.5s 7s
OK KBA H130 82.0oz 60ft/s 270ft/s 8.6G 1,019ft 8.0s 6s
OK Cesaroni H135 65.9oz 62ft/s 302ft/s 8.0G 1,050ft 7.9s 6s
OK Cesaroni H160 66.6oz 64ft/s 318ft/s 9.0G 1,057ft 7.8s 6s
OK Cesaroni H170 65.2oz 74ft/s 318ft/s 12.1G 1,058ft 7.7s 6s
OK AeroTech H182 64.3oz 67ft/s 330ft/s 9.6G 1,064ft 7.8s 7s
OK AeroTech H180 65.9oz 75ft/s 335ft/s 12.9G 1,105ft 7.8s 7s
OK AeroTech H250 66.0oz 90ft/s 356ft/s 16.5G 1,126ft 7.8s 7s
OK AeroTech H135 64.5oz 61ft/s 304ft/s 7.6G 1,130ft 8.2s 6s
OK KBA H225 68.1oz 70ft/s 361ft/s 13.0G 1,162ft 8.0s 7s
OK AeroTech H195 63.9oz 81ft/s 361ft/s 13.3G 1,180ft 8.0s 7s
OK Cesaroni H295 69.1oz 90ft/s 384ft/s 17.2G 1,205ft 8.0s 7s
OK Cesaroni H180 68.1oz 77ft/s 359ft/s 13.3G 1,248ft 8.2s 7s
OK Cesaroni H194 67.0oz 78ft/s 366ft/s 14.1G 1,251ft 8.2s 7s
OK Cesaroni H200 66.7oz 80ft/s 372ft/s 14.7G 1,277ft 8.3s 7s
OK Cesaroni H140 66.8oz 74ft/s 349ft/s 12.2G 1,323ft 8.6s 7s
OK Cesaroni H255 65.2oz 90ft/s 410ft/s 19.7G 1,339ft 8.2s 7s
OK Cesaroni H399 67.4oz 112ft/s 444ft/s 28.1G 1,362ft 8.2s 7s
OK Cesaroni H159 69.1oz 67ft/s 387ft/s 8.7G 1,450ft 9.0s 7s
OK AeroTech H268 69.6oz 89ft/s 437ft/s 16.0G 1,473ft 8.6s 7s
OK Cesaroni H233 68.6oz 86ft/s 432ft/s 16.8G 1,501ft 8.7s 7s
OK Cesaroni H255 68.2oz 94ft/s 449ft/s 20.8G 1,525ft 8.7s 7s
OK Cesaroni H160 68.3oz 82ft/s 391ft/s 15.7G 1,528ft 8.9s 7s
OK AeroTech I200 69.6oz 82ft/s 422ft/s 14.7G 1,562ft 8.9s 7s
OK Cesaroni I204 69.3oz 88ft/s 447ft/s 17.6G 1,659ft 9.1s 7s
OK AeroTech I205 68.1oz 80ft/s 454ft/s 18.2G 1,667ft 9.1s 7s
warningsW,D Estes G80 61.4oz 5:1 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 (8ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (22ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (13ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (28ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (24ft/s)
failed5 Estes F15 average thrust fails 5:1 thrust/weight ratio (1:1)
failedG AeroTech F37 speed at end of launch guide too slow (29ft/s)
failedG AeroTech F62 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (28ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (24ft/s)
failedG AeroTech F42 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (22ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (24ft/s)
failedA Cesaroni F120 rocket doesn't reach a safe altitude (137ft)
failedG Cesaroni F59 speed at end of launch guide too slow (39ft/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (2:1)
failedG AeroTech F26 speed at end of launch guide too slow (23ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (20ft/s)
failedG AeroTech F52 speed at end of launch guide too slow (42ft/s)
failedG Apogee F10 speed at end of launch guide too slow (3ft/s)
failedG AeroTech F50 speed at end of launch guide too slow (41ft/s)
failedG Estes F50 speed at end of launch guide too slow (42ft/s)
failedG AeroTech F25 speed at end of launch guide too slow (32ft/s)
failedG AeroTech F40 speed at end of launch guide too slow (37ft/s)
failedG AeroTech G54 speed at end of launch guide too slow (43ft/s)
failedG AeroTech G74 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni G88 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (30ft/s)
failedG AeroTech G53 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G80 speed at end of launch guide too slow (45ft/s)
failedG Estes G40 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (46ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G57 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni G68 speed at end of launch guide too slow (41ft/s)
failedG AeroTech G79 speed at end of launch guide too slow (42ft/s)
failedG AeroTech G78 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G40 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (26ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (40ft/s)
failedG KBA G82 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni H54 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni H53 speed at end of launch guide too slow (41ft/s)

G These simulations were run with a launch guide length of 8ft (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.

A The minimum altitude check is used to ensure that the rocket flies high enough to ensure time for a safe recovery. In addition, many barometric altimeters require a minimum altitude to detect lift-off. (The minimum altitude is 10m or 33ft for an A motor and doubles for each impulse class).

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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