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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 75 motors that fit and appear to have enough thrust (678 motors didn't fit, 38 motors failed safety checks). 111 motor had thrust curves available and 220 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:   MDRM
Owner: John Sigmon
Body Diameter: 4.00in
Dry Weight: 36.0oz
MMT Diameter: 29.0mm
MMT Length: 24.00in
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 Cesaroni F120 39.7oz 64ft/s 147ft/s 11.9G 296ft 4.4s 4s
warningsW Estes F50 38.9oz 48ft/s 173ft/s 6.2G 481ft 5.7s 4s
OK Cesaroni G88 41.4oz 51ft/s 199ft/s 9.1G 522ft 5.8s 5s
OK AeroTech G104 40.8oz 60ft/s 204ft/s 9.7G 543ft 5.8s 5s
OK AeroTech G74 39.1oz 50ft/s 207ft/s 7.3G 558ft 6.0s 5s
OK AeroTech G53 41.1oz 50ft/s 186ft/s 6.5G 584ft 6.3s 4s
OK Cesaroni G80 41.1oz 48ft/s 220ft/s 7.6G 614ft 6.3s 5s
OK AeroTech G77 40.3oz 50ft/s 239ft/s 7.7G 692ft 6.6s 5s
OK AeroTech G79 41.5oz 52ft/s 238ft/s 7.5G 719ft 6.7s 5s
OK Cesaroni G83 41.1oz 53ft/s 241ft/s 7.8G 724ft 6.7s 5s
OK Cesaroni G250 41.0oz 87ft/s 291ft/s 24.2G 762ft 6.4s 6s
OK AeroTech G76 41.2oz 66ft/s 239ft/s 12.2G 798ft 6.9s 5s
OK Cesaroni G126 41.1oz 66ft/s 281ft/s 12.9G 807ft 6.8s 6s
OK AeroTech G64 41.3oz 55ft/s 234ft/s 8.4G 821ft 7.1s 5s
OK AeroTech G75 40.6oz 51ft/s 257ft/s 7.9G 841ft 7.1s 5s
OK Cesaroni G131 43.1oz 62ft/s 293ft/s 11.3G 856ft 7.0s 6s
OK AeroTech G78 40.4oz 52ft/s 271ft/s 8.0G 861ft 7.2s 6s
OK AeroTech G125 40.4oz 64ft/s 308ft/s 12.2G 892ft 7.0s 6s
OK AeroTech G80 40.5oz 55ft/s 281ft/s 8.2G 920ft 7.3s 6s
OK Cesaroni G106 42.6oz 53ft/s 310ft/s 10.1G 958ft 7.4s 6s
OK KBA G135 44.0oz 57ft/s 330ft/s 11.6G 990ft 7.4s 6s
OK Cesaroni G125 42.9oz 66ft/s 355ft/s 12.6G 1,122ft 7.8s 6s
OK AeroTech H165 43.1oz 72ft/s 372ft/s 14.8G 1,124ft 7.7s 7s
OK Cesaroni G118 42.6oz 59ft/s 352ft/s 12.2G 1,125ft 7.8s 6s
OK Cesaroni H175 44.7oz 70ft/s 383ft/s 16.5G 1,143ft 7.7s 7s
OK Cesaroni G54 42.8oz 58ft/s 267ft/s 9.2G 1,150ft 8.4s 5s
OK Cesaroni H133 42.7oz 68ft/s 363ft/s 15.1G 1,152ft 7.8s 7s
OK Cesaroni H410 42.4oz 117ft/s 433ft/s 42.9G 1,162ft 7.5s 7s
OK Cesaroni H163 42.6oz 73ft/s 388ft/s 17.3G 1,176ft 7.8s 7s
OK Cesaroni H90 41.7oz 60ft/s 341ft/s 12.4G 1,186ft 8.1s 6s
OK AeroTech G138 41.2oz 64ft/s 401ft/s 13.9G 1,192ft 7.8s 7s
OK RATT H70 48.4oz 58ft/s 299ft/s 9.1G 1,194ft 8.4s 6s
OK Cesaroni H87 43.2oz 53ft/s 336ft/s 9.7G 1,194ft 8.3s 6s
OK AeroTech H128 43.3oz 72ft/s 381ft/s 14.1G 1,201ft 7.9s 7s
OK Cesaroni H54 43.4oz 50ft/s 274ft/s 7.4G 1,205ft 8.7s 5s
OK AeroTech H238 42.9oz 81ft/s 405ft/s 18.7G 1,211ft 7.8s 7s
OK Cesaroni H123 44.0oz 58ft/s 378ft/s 10.4G 1,226ft 8.1s 7s
OK AeroTech H115 43.2oz 59ft/s 375ft/s 9.2G 1,254ft 8.2s 7s
OK AeroTech H97 45.8oz 53ft/s 361ft/s 7.6G 1,292ft 8.5s 6s
OK Cesaroni H118 44.2oz 65ft/s 381ft/s 12.8G 1,303ft 8.3s 7s
OK Cesaroni H237 46.4oz 84ft/s 467ft/s 19.9G 1,380ft 8.2s 7s
OK AeroTech H220 44.8oz 87ft/s 464ft/s 23.6G 1,396ft 8.2s 7s
OK AeroTech H210 44.7oz 81ft/s 470ft/s 19.4G 1,421ft 8.3s 7s
OK Cesaroni H151 44.4oz 74ft/s 434ft/s 15.5G 1,425ft 8.4s 7s
OK KBA H130 61.0oz 60ft/s 368ft/s 12.0G 1,460ft 9.0s 7s
OK Cesaroni H170 44.2oz 78ft/s 462ft/s 18.3G 1,481ft 8.4s 7s
OK AeroTech H182 43.3oz 71ft/s 485ft/s 14.5G 1,486ft 8.5s 7s
OK Cesaroni H160 45.6oz 69ft/s 461ft/s 13.6G 1,488ft 8.6s 7s
OK Cesaroni H135 44.9oz 67ft/s 437ft/s 12.3G 1,492ft 8.7s 7s
OK AeroTech H180 44.9oz 81ft/s 484ft/s 19.3G 1,524ft 8.5s 7s
OK AeroTech H250 45.0oz 98ft/s 514ft/s 24.8G 1,536ft 8.4s 7s
OK KBA H225 47.1oz 71ft/s 520ft/s 18.9G 1,587ft 8.7s 8s
OK AeroTech H135 43.5oz 62ft/s 438ft/s 11.7G 1,595ft 8.9s 7s
OK AeroTech H195 42.9oz 87ft/s 524ft/s 20.3G 1,596ft 8.5s 7s
OK Cesaroni H295 48.1oz 91ft/s 552ft/s 25.3G 1,608ft 8.6s 8s
OK Cesaroni H194 46.0oz 83ft/s 520ft/s 21.1G 1,681ft 8.8s 7s
OK Cesaroni H180 47.1oz 79ft/s 509ft/s 19.7G 1,681ft 8.8s 7s
OK Cesaroni H200 45.7oz 86ft/s 528ft/s 21.9G 1,708ft 8.8s 7s
OK Cesaroni H340 49.8oz 106ft/s 606ft/s 31.1G 1,754ft 8.7s 8s
OK Cesaroni H255 44.2oz 94ft/s 587ft/s 29.6G 1,755ft 8.7s 8s
OK Cesaroni H399 46.4oz 117ft/s 636ft/s 41.4G 1,761ft 8.7s 8s
OK Cesaroni H140 45.8oz 78ft/s 491ft/s 18.3G 1,784ft 9.2s 7s
OK Cesaroni H226 48.7oz 88ft/s 580ft/s 24.9G 1,894ft 9.1s 8s
OK AeroTech H268 48.6oz 94ft/s 610ft/s 23.3G 1,899ft 9.1s 8s
OK Cesaroni H159 48.1oz 67ft/s 535ft/s 12.9G 1,915ft 9.5s 8s
OK Cesaroni H233 47.6oz 88ft/s 603ft/s 24.7G 1,930ft 9.1s 8s
OK Cesaroni H255 47.2oz 100ft/s 629ft/s 30.5G 1,949ft 9.1s 8s
OK Cesaroni H160 47.3oz 92ft/s 540ft/s 23.1G 1,991ft 9.4s 7s
OK AeroTech I200 48.6oz 89ft/s 582ft/s 21.5G 2,005ft 9.4s 8s
OK Cesaroni I204 48.3oz 95ft/s 612ft/s 25.6G 2,100ft 9.4s 8s
OK AeroTech I205 47.1oz 84ft/s 626ft/s 26.8G 2,106ft 9.4s 8s
OK Cesaroni I224 49.1oz 105ft/s 663ft/s 30.8G 2,233ft 9.6s 8s
OK Cesaroni I243 50.1oz 95ft/s 659ft/s 30.4G 2,235ft 9.6s 8s
OK KBA J520 61.5oz 113ft/s 999ft/s 40.7G 3,023ft 10.6s 9s
warningsW,D Estes G80 40.4oz 7:1 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 (19ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (30ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (24ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (32ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (29ft/s)
failedG Estes F15 speed at end of launch guide too slow (16ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (32ft/s)
failedG AeroTech F62 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (33ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (28ft/s)
failedG AeroTech F42 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni F59 speed at end of launch guide too slow (43ft/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 (29ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (25ft/s)
failedG AeroTech F52 speed at end of launch guide too slow (47ft/s)
failedG Apogee F10 speed at end of launch guide too slow (20ft/s)
failedG AeroTech F50 speed at end of launch guide too slow (45ft/s)
failedG AeroTech F25 speed at end of launch guide too slow (39ft/s)
failedG AeroTech F40 speed at end of launch guide too slow (42ft/s)
failedG AeroTech G54 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (36ft/s)
failedG Estes G40 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G57 speed at end of launch guide too slow (48ft/s)
failedG Cesaroni G68 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G79 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G40 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (31ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (44ft/s)
failedG KBA G82 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni H53 speed at end of launch guide too slow (44ft/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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