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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 91 motors that fit and appear to have enough thrust (678 motors didn't fit, 22 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:   Black Fly (Mac Performance)
Owner: Erik Czerwin
Body Diameter: 2.20in
Dry Weight: 751g
MMT Diameter: 29.0mm
MMT Length: 18.00in
CD: 0.50

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 860g 49ft/s 175ft/s 6.6G 514ft 6.0s 5s
OK AeroTech F42 827g 51ft/s 177ft/s 7.5G 573ft 6.3s 5s
OK Cesaroni F120 857g 74ft/s 200ft/s 16.2G 575ft 6.1s 6s
OK Cesaroni F59 850g 51ft/s 190ft/s 7.5G 580ft 6.3s 5s
OK AeroTech F50 836g 53ft/s 226ft/s 7.9G 819ft 7.4s 6s
OK AeroTech F52 873g 54ft/s 227ft/s 8.3G 846ft 7.6s 6s
OK AeroTech F40 877g 50ft/s 224ft/s 6.9G 915ft 8.0s 6s
OK AeroTech G54 888g 54ft/s 249ft/s 8.4G 984ft 8.1s 7s
warningsW Estes F50 835g 56ft/s 253ft/s 8.7G 989ft 8.0s 7s
OK Cesaroni G88 903g 59ft/s 277ft/s 12.2G 1,053ft 8.2s 7s
OK AeroTech G104 887g 70ft/s 284ft/s 13.0G 1,100ft 8.3s 7s
OK AeroTech G74 838g 60ft/s 296ft/s 10.2G 1,166ft 8.6s 7s
OK AeroTech G53 897g 57ft/s 272ft/s 8.8G 1,186ft 8.9s 7s
OK Cesaroni G80 894g 56ft/s 309ft/s 10.2G 1,262ft 8.9s 8s
warningsW Estes G40 874g 51ft/s 289ft/s 7.5G 1,359ft 9.5s 7s
OK AeroTech G40 874g 51ft/s 289ft/s 7.5G 1,359ft 9.5s 7s
OK AeroTech G77 916g 52ft/s 322ft/s 9.4G 1,374ft 9.4s 8s
OK AeroTech G77 874g 56ft/s 341ft/s 10.7G 1,460ft 9.5s 8s
OK AeroTech G79 908g 58ft/s 339ft/s 10.3G 1,496ft 9.7s 8s
OK Cesaroni G68 907g 52ft/s 331ft/s 9.3G 1,500ft 9.8s 8s
OK Cesaroni G83 896g 62ft/s 343ft/s 10.4G 1,511ft 9.7s 8s
OK Cesaroni G57 897g 57ft/s 322ft/s 9.0G 1,516ft 9.9s 8s
OK AeroTech G79 875g 52ft/s 338ft/s 8.6G 1,528ft 9.9s 8s
OK Cesaroni G250 892g 99ft/s 394ft/s 32.5G 1,619ft 9.6s 9s
OK AeroTech G76 898g 74ft/s 347ft/s 16.1G 1,670ft 10.0s 8s
OK Cesaroni G126 896g 74ft/s 391ft/s 17.1G 1,714ft 10.0s 9s
OK AeroTech G64 902g 63ft/s 345ft/s 11.2G 1,716ft 10.3s 8s
OK AeroTech G75 882g 60ft/s 375ft/s 10.6G 1,789ft 10.4s 8s
OK Cesaroni G131 951g 73ft/s 404ft/s 15.8G 1,805ft 10.2s 9s
OK AeroTech G78 876g 61ft/s 391ft/s 10.9G 1,851ft 10.5s 9s
OK AeroTech G125 876g 71ft/s 433ft/s 17.1G 1,939ft 10.5s 10s
OK AeroTech G80 879g 64ft/s 409ft/s 11.1G 1,986ft 10.8s 9s
OK Cesaroni G106 938g 61ft/s 436ft/s 13.3G 2,054ft 11.0s 10s
OK KBA G82 982g 51ft/s 413ft/s 9.8G 2,069ft 11.3s 9s
OK KBA G135 977g 67ft/s 454ft/s 15.8G 2,116ft 11.0s 10s
OK AeroTech G75 984g 50ft/s 421ft/s 7.4G 2,206ft 11.7s 9s
OK Cesaroni G54 944g 67ft/s 410ft/s 12.1G 2,454ft 12.2s 9s
OK Cesaroni G125 946g 75ft/s 502ft/s 16.4G 2,456ft 11.7s 10s
OK Cesaroni G118 939g 70ft/s 501ft/s 16.0G 2,464ft 11.7s 10s
OK AeroTech H165 953g 81ft/s 519ft/s 19.8G 2,475ft 11.6s 11s
OK RATT H70 1,103g 65ft/s 427ft/s 11.6G 2,476ft 12.2s 10s
OK Cesaroni H175 998g 80ft/s 525ft/s 23.9G 2,501ft 11.6s 11s
OK Cesaroni H133 941g 79ft/s 515ft/s 19.8G 2,535ft 11.8s 11s
OK Cesaroni H54 960g 59ft/s 425ft/s 9.7G 2,570ft 12.5s 9s
OK Cesaroni H87 956g 61ft/s 495ft/s 12.7G 2,601ft 12.2s 10s
OK Cesaroni H90 914g 71ft/s 504ft/s 16.3G 2,609ft 12.1s 10s
OK Cesaroni H163 938g 84ft/s 543ft/s 22.6G 2,611ft 11.8s 11s
OK Cesaroni H410 934g 133ft/s 583ft/s 57.1G 2,623ft 11.6s 11s
OK AeroTech H128 957g 80ft/s 538ft/s 18.6G 2,655ft 12.0s 11s
OK AeroTech G138 899g 71ft/s 567ft/s 20.3G 2,685ft 12.0s 11s
OK Cesaroni H123 979g 69ft/s 534ft/s 13.8G 2,692ft 12.2s 11s
OK AeroTech H238 947g 92ft/s 563ft/s 25.0G 2,703ft 11.9s 11s
OK AeroTech H115 956g 67ft/s 545ft/s 12.4G 2,773ft 12.3s 11s
OK AeroTech H97 1,029g 60ft/s 524ft/s 10.1G 2,802ft 12.7s 11s
OK Cesaroni H118 983g 74ft/s 551ft/s 16.6G 2,873ft 12.5s 11s
OK KBA H130 1,460g 68ft/s 486ft/s 14.4G 2,902ft 13.1s 11s
OK Cesaroni H237 1,045g 94ft/s 637ft/s 29.0G 3,098ft 12.6s 12s
OK AeroTech H220 1,001g 100ft/s 642ft/s 30.3G 3,154ft 12.6s 12s
OK Cesaroni H151 989g 84ft/s 622ft/s 20.0G 3,200ft 12.8s 11s
OK AeroTech H210 997g 91ft/s 654ft/s 26.1G 3,224ft 12.8s 12s
OK Cesaroni H135 1,002g 77ft/s 635ft/s 15.8G 3,346ft 13.2s 12s
OK Cesaroni H160 1,023g 79ft/s 653ft/s 17.5G 3,349ft 13.1s 12s
OK Cesaroni H170 983g 88ft/s 656ft/s 23.6G 3,359ft 13.0s 12s
OK AeroTech H182 958g 81ft/s 695ft/s 19.8G 3,408ft 13.1s 12s
OK AeroTech H180 1,003g 91ft/s 686ft/s 25.3G 3,469ft 13.1s 12s
OK AeroTech H250 1,007g 108ft/s 718ft/s 32.0G 3,528ft 13.1s 12s
OK Cesaroni H53 1,037g 49ft/s 523ft/s 8.2G 3,562ft 14.6s 10s
OK AeroTech H135 963g 72ft/s 654ft/s 15.4G 3,608ft 13.7s 12s
OK KBA H225 1,067g 78ft/s 718ft/s 25.7G 3,620ft 13.5s 12s
OK Cesaroni H295 1,093g 107ft/s 751ft/s 35.1G 3,688ft 13.4s 12s
OK AeroTech H195 948g 97ft/s 759ft/s 26.4G 3,708ft 13.3s 12s
OK Cesaroni H180 1,065g 93ft/s 722ft/s 24.9G 3,818ft 13.8s 12s
OK Cesaroni H194 1,035g 91ft/s 745ft/s 26.8G 3,854ft 13.7s 12s
OK Cesaroni H200 1,025g 96ft/s 758ft/s 27.9G 3,931ft 13.8s 12s
OK Cesaroni H140 1,028g 87ft/s 725ft/s 23.4G 4,056ft 14.1s 12s
OK Cesaroni H340 1,142g 112ft/s 822ft/s 38.8G 4,060ft 13.8s 13s
OK Cesaroni H255 983g 112ft/s 838ft/s 38.0G 4,120ft 13.8s 13s
OK Cesaroni H399 1,045g 138ft/s 870ft/s 52.4G 4,156ft 13.8s 13s
OK Cesaroni H226 1,111g 102ft/s 823ft/s 31.2G 4,367ft 14.3s 13s
OK Cesaroni H159 1,094g 80ft/s 798ft/s 16.6G 4,375ft 14.6s 13s
OK AeroTech H268 1,109g 101ft/s 860ft/s 29.6G 4,424ft 14.3s 13s
OK Cesaroni H233 1,079g 98ft/s 864ft/s 31.2G 4,496ft 14.4s 13s
OK Cesaroni H160 1,070g 100ft/s 800ft/s 29.2G 4,558ft 14.7s 13s
OK Cesaroni H255 1,069g 116ft/s 897ft/s 38.4G 4,572ft 14.5s 13s
OK AeroTech I200 1,109g 96ft/s 848ft/s 26.9G 4,626ft 14.7s 13s
OK Cesaroni I204 1,100g 102ft/s 904ft/s 32.2G 4,889ft 14.9s 13s
OK AeroTech I205 1,066g 92ft/s 929ft/s 33.8G 4,910ft 14.8s 13s
OK Cesaroni I243 1,150g 110ft/s 971ft/s 37.7G 5,227ft 15.2s 14s
OK Cesaroni I224 1,121g 112ft/s 963ft/s 38.5G 5,237ft 15.2s 14s
OK KBA J520 1,473g 122ft/s 1,399ft/s 48.4G 7,344ft 17.3s 16s
warningsW,D Estes G80 876g 9:1 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 (25ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (37ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (30ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (39ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (36ft/s)
failedG Estes F15 speed at end of launch guide too slow (23ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (38ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (35ft/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (3:1)
failedG AeroTech F26 speed at end of launch guide too slow (35ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (30ft/s)
failedG Apogee F10 speed at end of launch guide too slow (27ft/s)
failedG AeroTech F25 speed at end of launch guide too slow (46ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (43ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (42ft/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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