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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 58 motors that fit and appear to have enough thrust (692 motors didn't fit, 59 motors failed safety checks). 115 motor had thrust curves available and 229 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:   Still Testing B4 with avionics
Owner: Christopher Texler
Body Diameter: 2.50in
Dry Weight: 1.400Kg
MMT Diameter: 29.0mm
MMT Length: 15.00in
CD: 0.25

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 1.506Kg 55ft/s 108ft/s 8.8G 198ft 3.8s 3s
OK AeroTech G104 1.536Kg 51ft/s 154ft/s 7.1G 435ft 5.5s 5s
OK AeroTech G76 1.547Kg 55ft/s 192ft/s 8.9G 750ft 7.3s 5s
OK Cesaroni G250 1.541Kg 77ft/s 222ft/s 18.3G 757ft 7.0s 7s
OK Cesaroni G126 1.545Kg 56ft/s 218ft/s 9.5G 794ft 7.4s 6s
OK Cesaroni G131 1.600Kg 53ft/s 230ft/s 9.2G 872ft 7.7s 7s
OK AeroTech G125 1.525Kg 54ft/s 240ft/s 9.5G 942ft 8.0s 7s
OK KBA G135 1.626Kg 52ft/s 262ft/s 9.1G 1,098ft 8.6s 8s
OK Cesaroni G54 1.593Kg 48ft/s 234ft/s 6.7G 1,258ft 9.7s 7s
OK Cesaroni G118 1.588Kg 53ft/s 288ft/s 9.0G 1,355ft 9.6s 8s
OK Cesaroni G125 1.594Kg 57ft/s 291ft/s 9.3G 1,364ft 9.6s 8s
OK AeroTech H165 1.602Kg 62ft/s 302ft/s 11.3G 1,406ft 9.6s 9s
OK Cesaroni H133 1.590Kg 59ft/s 299ft/s 11.3G 1,433ft 9.8s 9s
OK Cesaroni H90 1.563Kg 50ft/s 289ft/s 9.1G 1,446ft 10.0s 8s
OK Cesaroni H175 1.647Kg 63ft/s 309ft/s 14.3G 1,450ft 9.7s 9s
OK Cesaroni H163 1.587Kg 64ft/s 315ft/s 12.9G 1,520ft 10.0s 9s
OK AeroTech G138 1.548Kg 54ft/s 322ft/s 12.0G 1,563ft 10.2s 9s
OK AeroTech H128 1.606Kg 61ft/s 315ft/s 10.7G 1,564ft 10.2s 9s
OK Cesaroni H123 1.628Kg 50ft/s 313ft/s 8.3G 1,573ft 10.4s 9s
OK Cesaroni H410 1.582Kg 103ft/s 339ft/s 33.1G 1,596ft 9.9s 10s
OK AeroTech H115 1.605Kg 50ft/s 318ft/s 7.0G 1,633ft 10.6s 9s
OK AeroTech H238 1.596Kg 71ft/s 331ft/s 14.5G 1,635ft 10.2s 9s
OK Cesaroni H118 1.632Kg 56ft/s 329ft/s 9.6G 1,770ft 10.8s 9s
OK KBA H130 2.109Kg 55ft/s 330ft/s 9.6G 1,876ft 11.3s 9s
OK Cesaroni H237 1.694Kg 72ft/s 385ft/s 17.8G 2,076ft 11.4s 11s
OK Cesaroni H151 1.638Kg 63ft/s 375ft/s 11.7G 2,117ft 11.7s 10s
OK AeroTech H220 1.650Kg 75ft/s 387ft/s 18.0G 2,119ft 11.5s 11s
OK AeroTech H210 1.646Kg 71ft/s 393ft/s 15.5G 2,179ft 11.7s 11s
OK Cesaroni H135 1.651Kg 58ft/s 385ft/s 9.2G 2,244ft 12.1s 10s
OK Cesaroni H160 1.672Kg 61ft/s 396ft/s 10.6G 2,281ft 12.1s 11s
OK Cesaroni H170 1.632Kg 70ft/s 398ft/s 13.8G 2,309ft 12.1s 11s
OK AeroTech H182 1.607Kg 63ft/s 411ft/s 12.0G 2,364ft 12.3s 11s
OK AeroTech H180 1.652Kg 69ft/s 418ft/s 15.0G 2,468ft 12.4s 11s
OK AeroTech H135 1.612Kg 57ft/s 400ft/s 8.8G 2,486ft 12.8s 11s
OK AeroTech H250 1.656Kg 86ft/s 437ft/s 18.9G 2,559ft 12.5s 12s
OK KBA H225 1.716Kg 65ft/s 441ft/s 16.1G 2,628ft 12.8s 12s
OK AeroTech H169 1.602Kg 75ft/s 437ft/s 14.0G 2,699ft 13.0s 11s
OK AeroTech H195 1.597Kg 75ft/s 455ft/s 15.2G 2,775ft 13.1s 12s
OK Cesaroni H295 1.742Kg 81ft/s 464ft/s 22.1G 2,806ft 13.1s 12s
OK Cesaroni H180 1.714Kg 72ft/s 454ft/s 15.1G 2,884ft 13.4s 12s
OK Cesaroni H194 1.684Kg 72ft/s 464ft/s 16.1G 2,931ft 13.4s 12s
OK Cesaroni H200 1.674Kg 74ft/s 473ft/s 16.7G 3,031ft 13.6s 12s
OK Cesaroni H140 1.677Kg 67ft/s 461ft/s 13.9G 3,106ft 14.0s 12s
OK Cesaroni H340 1.791Kg 95ft/s 519ft/s 24.3G 3,331ft 14.0s 13s
OK Cesaroni H255 1.632Kg 83ft/s 517ft/s 22.5G 3,374ft 14.1s 13s
OK Cesaroni H399 1.694Kg 103ft/s 537ft/s 31.8G 3,445ft 14.2s 14s
OK Cesaroni H159 1.743Kg 61ft/s 513ft/s 10.0G 3,541ft 14.9s 13s
OK Cesaroni H226 1.760Kg 78ft/s 533ft/s 19.3G 3,662ft 14.8s 13s
OK AeroTech H268 1.758Kg 83ft/s 551ft/s 18.4G 3,742ft 14.9s 14s
OK Cesaroni H160 1.719Kg 75ft/s 524ft/s 17.8G 3,826ft 15.3s 13s
OK Cesaroni H233 1.728Kg 78ft/s 555ft/s 19.1G 3,853ft 15.1s 14s
OK Cesaroni H255 1.718Kg 89ft/s 573ft/s 23.5G 3,978ft 15.3s 14s
OK AeroTech I200 1.758Kg 79ft/s 555ft/s 16.6G 4,009ft 15.5s 14s
OK Cesaroni I204 1.749Kg 78ft/s 598ft/s 19.9G 4,424ft 16.1s 14s
OK AeroTech I205 1.715Kg 73ft/s 607ft/s 20.6G 4,498ft 16.3s 14s
OK Cesaroni I224 1.770Kg 88ft/s 646ft/s 24.0G 4,958ft 16.9s 15s
OK Cesaroni I243 1.799Kg 85ft/s 654ft/s 23.7G 4,966ft 16.9s 15s
warningsD Estes G80 1.528Kg 5:1 thrust/weight ratio (no data)

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 (12ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (23ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (17ft/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 (26ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (23ft/s)
failedG Estes F15 speed at end of launch guide too slow (7ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (27ft/s)
failedG AeroTech F62 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (27ft/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 (23ft/s)
failedG AeroTech F42 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (21ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni F59 speed at end of launch guide too slow (37ft/s)
failedG AeroTech F67 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 (22ft/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 (40ft/s)
failedG Apogee F10 speed at end of launch guide too slow (12ft/s)
failedG AeroTech F50 speed at end of launch guide too slow (38ft/s)
failedG Estes F50 speed at end of launch guide too slow (41ft/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 (35ft/s)
failedG AeroTech G54 speed at end of launch guide too slow (40ft/s)
failedG AeroTech G74 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G88 speed at end of launch guide too slow (43ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (29ft/s)
failedG AeroTech G53 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G80 speed at end of launch guide too slow (42ft/s)
failedG Estes G40 speed at end of launch guide too slow (36ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (41ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (39ft/s)
failedG AeroTech G72 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G83 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G57 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G68 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G79 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G79 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G78 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G40 speed at end of launch guide too slow (36ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (25ft/s)
failedG AeroTech G64 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G80 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (37ft/s)
failed5 AeroTech G8 average thrust fails 5:1 thrust/weight ratio (1:1)
failedG Cesaroni G106 speed at end of launch guide too slow (46ft/s)
failedG AeroTech G11 speed at end of launch guide too slow (13ft/s)
failedG AeroTech G12 speed at end of launch guide too slow (15ft/s)
failedG KBA G82 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni H54 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H87 speed at end of launch guide too slow (46ft/s)
failedG AeroTech H97 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni H53 speed at end of launch guide too slow (38ft/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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