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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 74 motors that fit and appear to have enough thrust (694 motors didn't fit, 23 motors failed safety checks). 95 motor had thrust curves available and 184 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:   LOC-IV 29mm
Owner: Jim Lane
Body Diameter: 4.00in
Dry Weight: 37.0oz
MMT Diameter: 29.0mm
MMT Length: 12.00in
CD: 0.70

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 40.8oz 48ft/s 119ft/s 4.6G 245ft 4.2s 3s
OK AeroTech F42 39.7oz 48ft/s 116ft/s 5.2G 268ft 4.4s 3s
OK Cesaroni F59 40.5oz 50ft/s 129ft/s 5.3G 274ft 4.4s 3s
OK Cesaroni F120 40.7oz 74ft/s 143ft/s 11.6G 276ft 4.2s 4s
OK AeroTech F50 40.0oz 53ft/s 151ft/s 5.5G 376ft 5.1s 4s
OK AeroTech F52 41.3oz 53ft/s 152ft/s 5.9G 394ft 5.2s 4s
warningsW Estes F50 39.9oz 55ft/s 167ft/s 6.0G 446ft 5.5s 4s
OK AeroTech G54 41.8oz 54ft/s 166ft/s 6.0G 454ft 5.6s 4s
OK Cesaroni G88 42.4oz 58ft/s 193ft/s 8.9G 484ft 5.6s 5s
OK AeroTech G104 41.8oz 68ft/s 197ft/s 9.5G 504ft 5.5s 5s
OK AeroTech G74 40.1oz 57ft/s 200ft/s 7.1G 516ft 5.8s 5s
OK AeroTech G53 42.1oz 55ft/s 179ft/s 6.4G 541ft 6.1s 4s
OK Cesaroni G80 42.1oz 57ft/s 213ft/s 7.4G 568ft 6.0s 5s
warningsW Estes G40 41.3oz 50ft/s 183ft/s 5.4G 606ft 6.5s 4s
OK AeroTech G40 41.3oz 50ft/s 183ft/s 5.4G 606ft 6.5s 4s
OK AeroTech G77 42.8oz 52ft/s 220ft/s 6.5G 616ft 6.3s 5s
OK AeroTech G77 41.3oz 57ft/s 230ft/s 7.4G 638ft 6.3s 5s
OK AeroTech G79 42.5oz 60ft/s 229ft/s 7.3G 664ft 6.4s 5s
OK Cesaroni G68 42.5oz 52ft/s 220ft/s 6.8G 667ft 6.6s 5s
OK AeroTech G79 41.4oz 51ft/s 222ft/s 6.0G 668ft 6.6s 5s
OK Cesaroni G83 42.1oz 61ft/s 233ft/s 7.6G 668ft 6.4s 5s
OK Cesaroni G57 42.1oz 55ft/s 209ft/s 6.5G 675ft 6.7s 5s
OK Cesaroni G250 42.0oz 101ft/s 283ft/s 23.5G 701ft 6.2s 6s
OK AeroTech G76 42.2oz 74ft/s 229ft/s 11.8G 737ft 6.6s 5s
OK Cesaroni G126 42.1oz 74ft/s 271ft/s 12.6G 743ft 6.5s 6s
OK AeroTech G64 42.3oz 63ft/s 225ft/s 8.2G 757ft 6.8s 4s
OK AeroTech G75 41.6oz 58ft/s 246ft/s 7.7G 775ft 6.9s 5s
OK Cesaroni G131 44.1oz 69ft/s 283ft/s 11.0G 788ft 6.7s 6s
OK AeroTech G78 41.4oz 59ft/s 260ft/s 7.8G 792ft 6.9s 5s
OK AeroTech G125 41.4oz 72ft/s 297ft/s 11.8G 819ft 6.7s 6s
OK AeroTech G80 41.5oz 63ft/s 270ft/s 8.0G 845ft 7.0s 5s
OK Cesaroni G106 43.6oz 61ft/s 299ft/s 9.8G 880ft 7.1s 6s
OK KBA G82 45.1oz 52ft/s 279ft/s 6.6G 903ft 7.4s 5s
OK KBA G135 45.0oz 68ft/s 319ft/s 11.2G 909ft 7.1s 6s
OK AeroTech G75 45.2oz 50ft/s 276ft/s 5.2G 959ft 7.8s 5s
OK Cesaroni G125 43.9oz 75ft/s 341ft/s 12.2G 1,028ft 7.4s 6s
OK AeroTech H165 44.1oz 81ft/s 359ft/s 14.4G 1,029ft 7.3s 6s
OK Cesaroni G118 43.6oz 70ft/s 338ft/s 11.9G 1,031ft 7.5s 6s
OK Cesaroni H175 45.7oz 81ft/s 370ft/s 15.8G 1,046ft 7.3s 6s
OK Cesaroni H133 43.7oz 77ft/s 349ft/s 14.8G 1,055ft 7.5s 6s
OK Cesaroni G54 43.8oz 64ft/s 254ft/s 8.9G 1,059ft 8.0s 5s
OK Cesaroni H410 43.4oz 133ft/s 420ft/s 41.7G 1,059ft 7.1s 7s
OK Cesaroni H163 43.6oz 84ft/s 374ft/s 16.9G 1,075ft 7.4s 6s
OK Cesaroni H90 42.7oz 69ft/s 326ft/s 12.0G 1,087ft 7.7s 6s
OK AeroTech G138 42.2oz 72ft/s 386ft/s 13.4G 1,089ft 7.5s 6s
OK Cesaroni H87 44.2oz 61ft/s 322ft/s 9.4G 1,096ft 7.9s 6s
OK AeroTech H128 44.3oz 81ft/s 367ft/s 13.7G 1,099ft 7.5s 6s
OK AeroTech H238 43.9oz 95ft/s 391ft/s 18.1G 1,106ft 7.4s 6s
OK Cesaroni H54 44.4oz 56ft/s 261ft/s 7.2G 1,109ft 8.3s 5s
OK Cesaroni H123 45.0oz 69ft/s 364ft/s 10.1G 1,122ft 7.8s 6s
OK AeroTech H115 44.2oz 66ft/s 360ft/s 8.9G 1,148ft 7.8s 6s
OK AeroTech H97 46.8oz 60ft/s 346ft/s 7.4G 1,186ft 8.2s 6s
OK Cesaroni H118 45.2oz 74ft/s 365ft/s 12.5G 1,193ft 7.9s 6s
OK Cesaroni H237 47.4oz 93ft/s 451ft/s 19.4G 1,259ft 7.8s 7s
OK AeroTech H220 45.8oz 99ft/s 448ft/s 23.1G 1,273ft 7.8s 7s
OK AeroTech H210 45.7oz 93ft/s 453ft/s 18.8G 1,295ft 7.9s 7s
OK Cesaroni H151 45.4oz 86ft/s 417ft/s 15.1G 1,301ft 8.0s 7s
OK KBA H130 62.0oz 70ft/s 356ft/s 11.7G 1,347ft 8.6s 7s
OK Cesaroni H170 45.2oz 91ft/s 445ft/s 17.9G 1,350ft 8.0s 7s
OK AeroTech H182 44.3oz 83ft/s 466ft/s 14.1G 1,354ft 8.0s 7s
OK Cesaroni H160 46.6oz 79ft/s 443ft/s 13.3G 1,357ft 8.2s 7s
OK Cesaroni H135 45.9oz 76ft/s 418ft/s 12.0G 1,363ft 8.3s 7s
OK AeroTech H180 45.9oz 91ft/s 465ft/s 18.8G 1,389ft 8.1s 7s
OK AeroTech H250 46.0oz 110ft/s 495ft/s 24.2G 1,397ft 8.0s 7s
OK KBA H225 48.1oz 83ft/s 501ft/s 18.3G 1,445ft 8.3s 7s
OK AeroTech H195 43.9oz 97ft/s 503ft/s 19.8G 1,452ft 8.1s 7s
OK AeroTech H135 44.5oz 74ft/s 419ft/s 11.4G 1,456ft 8.5s 6s
OK Cesaroni H53 47.1oz 51ft/s 314ft/s 6.1G 1,516ft 9.7s 5s
OK Cesaroni H194 47.0oz 92ft/s 499ft/s 20.6G 1,530ft 8.3s 7s
OK Cesaroni H200 46.7oz 95ft/s 507ft/s 21.4G 1,554ft 8.4s 7s
OK Cesaroni H255 45.2oz 110ft/s 564ft/s 28.9G 1,593ft 8.3s 7s
OK Cesaroni H140 46.8oz 90ft/s 469ft/s 17.9G 1,627ft 8.7s 7s
OK AeroTech I205 48.1oz 93ft/s 597ft/s 26.2G 1,915ft 8.9s 7s
warningsW,D Estes G80 41.4oz 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 (21ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (33ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (26ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (36ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (34ft/s)
failedG Estes F15 speed at end of launch guide too slow (17ft/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 (37ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (34ft/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 (32ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (29ft/s)
failedG Apogee F10 speed at end of launch guide too slow (21ft/s)
failedG AeroTech F25 speed at end of launch guide too slow (43ft/s)
failedG AeroTech F40 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (40ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni H42 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.

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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