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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 68 motors that fit and appear to have enough thrust (703 motors didn't fit, 20 motors failed safety checks). 86 motor had thrust curves available and 171 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:   AMRAAM AIM-120 (Scalekits)
Owner: paul shepherdson
Body Diameter: 2.26in
Dry Weight: 1.34lb
MMT Diameter: 29.0mm
MMT Length: 10.00in
CD: 0.75

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 1.58lb 55ft/s 212ft/s 8.1G 634ft 6.4s 5s
OK Cesaroni F120 1.57lb 81ft/s 242ft/s 19.6G 685ft 6.4s 6s
OK AeroTech F42 1.51lb 58ft/s 215ft/s 9.2G 702ft 6.7s 5s
OK Cesaroni F59 1.56lb 58ft/s 230ft/s 9.2G 702ft 6.7s 6s
OK AeroTech F50 1.53lb 60ft/s 271ft/s 9.7G 932ft 7.5s 6s
OK AeroTech F25 1.54lb 51ft/s 231ft/s 7.4G 945ft 7.9s 5s
OK AeroTech F52 1.61lb 60ft/s 269ft/s 10.1G 958ft 7.7s 6s
OK AeroTech F40 1.62lb 56ft/s 262ft/s 8.5G 1,033ft 8.1s 6s
OK AeroTech G54 1.64lb 60ft/s 293ft/s 10.2G 1,081ft 8.1s 7s
warningsW Estes F50 1.52lb 62ft/s 299ft/s 10.6G 1,082ft 8.0s 7s
OK Cesaroni G88 1.68lb 65ft/s 327ft/s 14.7G 1,126ft 8.1s 7s
OK AeroTech G104 1.64lb 78ft/s 334ft/s 15.7G 1,162ft 8.1s 7s
OK AeroTech G38 1.62lb 48ft/s 277ft/s 6.3G 1,183ft 8.8s 6s
OK AeroTech G74 1.53lb 63ft/s 352ft/s 12.3G 1,223ft 8.3s 7s
OK AeroTech G53 1.66lb 62ft/s 314ft/s 10.7G 1,253ft 8.6s 7s
OK Cesaroni G80 1.66lb 62ft/s 363ft/s 12.4G 1,304ft 8.6s 7s
OK AeroTech G77 1.70lb 57ft/s 376ft/s 10.9G 1,399ft 9.0s 8s
warningsW Estes G40 1.61lb 58ft/s 330ft/s 9.2G 1,408ft 9.1s 7s
OK AeroTech G40 1.61lb 58ft/s 330ft/s 9.2G 1,408ft 9.1s 7s
OK AeroTech G77 1.61lb 62ft/s 399ft/s 12.7G 1,452ft 9.0s 8s
OK AeroTech G79 1.69lb 63ft/s 391ft/s 12.2G 1,488ft 9.1s 8s
OK Cesaroni G83 1.66lb 67ft/s 397ft/s 12.6G 1,500ft 9.1s 8s
OK Cesaroni G68 1.68lb 57ft/s 381ft/s 11.3G 1,505ft 9.2s 7s
OK AeroTech G79 1.61lb 55ft/s 390ft/s 10.3G 1,518ft 9.3s 7s
OK Cesaroni G57 1.66lb 62ft/s 367ft/s 10.9G 1,526ft 9.4s 7s
OK Cesaroni G250 1.65lb 109ft/s 465ft/s 38.5G 1,543ft 8.8s 8s
OK AeroTech G76 1.66lb 84ft/s 393ft/s 19.4G 1,620ft 9.3s 7s
OK Cesaroni G126 1.66lb 83ft/s 455ft/s 20.5G 1,633ft 9.2s 8s
OK AeroTech G64 1.67lb 72ft/s 388ft/s 13.6G 1,668ft 9.5s 7s
OK Cesaroni G131 1.78lb 77ft/s 466ft/s 17.7G 1,701ft 9.4s 8s
OK AeroTech G75 1.63lb 65ft/s 427ft/s 12.9G 1,706ft 9.5s 8s
OK AeroTech G78 1.62lb 66ft/s 448ft/s 13.1G 1,743ft 9.6s 8s
OK AeroTech G125 1.62lb 81ft/s 503ft/s 19.8G 1,782ft 9.4s 8s
OK AeroTech G80 1.62lb 70ft/s 465ft/s 13.4G 1,841ft 9.7s 8s
OK Cesaroni G106 1.75lb 65ft/s 499ft/s 15.8G 1,893ft 9.9s 9s
OK KBA G82 1.85lb 56ft/s 465ft/s 11.0G 1,931ft 10.3s 8s
OK KBA G135 1.84lb 70ft/s 519ft/s 18.2G 1,936ft 9.9s 9s
OK AeroTech G75 1.85lb 54ft/s 467ft/s 8.7G 2,043ft 10.6s 8s
OK AeroTech H165 1.78lb 88ft/s 589ft/s 23.2G 2,155ft 10.1s 9s
OK Cesaroni G125 1.77lb 81ft/s 566ft/s 19.5G 2,160ft 10.3s 9s
OK Cesaroni G118 1.75lb 74ft/s 563ft/s 19.0G 2,171ft 10.3s 9s
OK Cesaroni H175 1.88lb 88ft/s 598ft/s 26.3G 2,175ft 10.2s 9s
OK Cesaroni H410 1.74lb 142ft/s 678ft/s 67.1G 2,210ft 9.9s 10s
OK Cesaroni H133 1.76lb 82ft/s 578ft/s 23.5G 2,211ft 10.3s 9s
OK Cesaroni G54 1.77lb 71ft/s 440ft/s 14.4G 2,237ft 10.9s 8s
OK Cesaroni H163 1.75lb 93ft/s 616ft/s 26.9G 2,246ft 10.3s 9s
OK Cesaroni H90 1.70lb 76ft/s 555ft/s 19.5G 2,280ft 10.5s 9s
OK AeroTech H128 1.79lb 87ft/s 603ft/s 21.9G 2,283ft 10.4s 9s
OK AeroTech G138 1.67lb 80ft/s 647ft/s 22.4G 2,284ft 10.3s 9s
OK AeroTech H238 1.77lb 101ft/s 638ft/s 29.2G 2,295ft 10.2s 9s
OK Cesaroni H87 1.79lb 69ft/s 544ft/s 15.1G 2,295ft 10.8s 9s
OK Cesaroni H123 1.84lb 72ft/s 598ft/s 16.0G 2,329ft 10.6s 9s
OK Cesaroni H54 1.80lb 64ft/s 453ft/s 11.6G 2,334ft 11.2s 8s
OK AeroTech H115 1.79lb 70ft/s 602ft/s 14.6G 2,374ft 10.7s 9s
OK AeroTech H97 1.95lb 64ft/s 571ft/s 11.8G 2,438ft 11.1s 9s
OK Cesaroni H118 1.85lb 82ft/s 604ft/s 19.6G 2,454ft 10.8s 9s
OK AeroTech H220 1.89lb 109ft/s 717ft/s 35.5G 2,595ft 10.7s 10s
OK AeroTech H210 1.88lb 97ft/s 730ft/s 29.9G 2,642ft 10.8s 10s
OK Cesaroni H151 1.86lb 92ft/s 681ft/s 23.5G 2,647ft 10.9s 10s
OK Cesaroni H170 1.85lb 96ft/s 722ft/s 27.9G 2,739ft 11.0s 10s
OK AeroTech H182 1.80lb 90ft/s 770ft/s 22.9G 2,745ft 10.9s 10s
OK Cesaroni H135 1.89lb 85ft/s 687ft/s 18.6G 2,761ft 11.2s 10s
OK AeroTech H180 1.90lb 98ft/s 753ft/s 29.4G 2,800ft 11.0s 10s
OK AeroTech H250 1.90lb 115ft/s 796ft/s 37.4G 2,823ft 11.0s 10s
OK AeroTech H195 1.77lb 106ft/s 831ft/s 31.2G 2,911ft 11.0s 10s
OK AeroTech H135 1.81lb 80ft/s 696ft/s 18.2G 2,949ft 11.5s 9s
OK Cesaroni H255 1.85lb 120ft/s 914ft/s 44.7G 3,182ft 11.3s 10s
warningsW,D Estes G80 1.62lb 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 (30ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (41ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (34ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (43ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (40ft/s)
failedG Estes F15 speed at end of launch guide too slow (28ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (43ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (40ft/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 (39ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (34ft/s)
failedG Apogee F10 speed at end of launch guide too slow (31ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (45ft/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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