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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 69 motors that fit and appear to have enough thrust (703 motors didn't fit, 19 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:   Leviathan
Owner: Jim Lane
Body Diameter: 3.00in
Dry Weight: 25.0oz
MMT Diameter: 29.0mm
MMT Length: 10.00in
CD: 0.59

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 28.8oz 59ft/s 181ft/s 7.0G 488ft 5.7s 5s
OK Cesaroni F120 28.7oz 87ft/s 209ft/s 17.0G 532ft 5.7s 5s
OK AeroTech F42 27.7oz 61ft/s 182ft/s 7.9G 538ft 6.0s 4s
OK Cesaroni F59 28.5oz 61ft/s 197ft/s 7.9G 542ft 5.9s 5s
OK AeroTech F50 28.0oz 64ft/s 231ft/s 8.3G 724ft 6.7s 5s
OK AeroTech F25 28.2oz 54ft/s 194ft/s 6.4G 730ft 7.1s 4s
OK AeroTech F52 29.3oz 66ft/s 230ft/s 8.7G 748ft 6.9s 5s
OK AeroTech F40 29.5oz 59ft/s 223ft/s 7.3G 806ft 7.3s 5s
warningsW Estes F50 27.9oz 65ft/s 255ft/s 9.1G 844ft 7.2s 6s
OK AeroTech G54 29.8oz 66ft/s 251ft/s 8.8G 848ft 7.2s 6s
OK Cesaroni G88 30.4oz 69ft/s 283ft/s 12.8G 887ft 7.2s 6s
OK AeroTech G104 29.8oz 83ft/s 289ft/s 13.7G 917ft 7.2s 6s
OK AeroTech G38 29.4oz 50ft/s 234ft/s 5.4G 924ft 7.9s 5s
OK AeroTech G74 28.1oz 70ft/s 301ft/s 10.6G 958ft 7.5s 6s
OK AeroTech G53 30.1oz 68ft/s 270ft/s 9.3G 989ft 7.8s 6s
OK Cesaroni G80 30.1oz 68ft/s 314ft/s 10.8G 1,030ft 7.7s 7s
OK AeroTech G77 30.8oz 63ft/s 325ft/s 9.5G 1,108ft 8.1s 7s
warningsW Estes G40 29.3oz 61ft/s 281ft/s 8.0G 1,110ft 8.2s 6s
OK AeroTech G40 29.3oz 61ft/s 281ft/s 8.0G 1,110ft 8.2s 6s
OK AeroTech G77 29.3oz 69ft/s 343ft/s 11.0G 1,148ft 8.1s 7s
OK AeroTech G79 30.5oz 71ft/s 338ft/s 10.6G 1,182ft 8.2s 7s
OK Cesaroni G83 30.1oz 72ft/s 343ft/s 11.0G 1,190ft 8.2s 7s
OK Cesaroni G68 30.5oz 62ft/s 328ft/s 9.8G 1,195ft 8.4s 7s
OK AeroTech G79 29.4oz 60ft/s 334ft/s 8.9G 1,202ft 8.4s 6s
OK Cesaroni G57 30.1oz 65ft/s 314ft/s 9.5G 1,210ft 8.5s 7s
OK Cesaroni G250 30.0oz 121ft/s 406ft/s 33.6G 1,227ft 7.9s 7s
OK AeroTech G76 30.2oz 87ft/s 338ft/s 17.0G 1,292ft 8.4s 6s
OK Cesaroni G126 30.1oz 87ft/s 394ft/s 18.0G 1,301ft 8.3s 7s
OK AeroTech G64 30.3oz 78ft/s 334ft/s 11.8G 1,330ft 8.6s 6s
OK AeroTech G75 29.6oz 72ft/s 367ft/s 11.2G 1,360ft 8.6s 7s
OK Cesaroni G131 32.1oz 85ft/s 407ft/s 15.6G 1,362ft 8.5s 7s
OK AeroTech G78 29.4oz 71ft/s 385ft/s 11.4G 1,389ft 8.7s 7s
OK AeroTech G125 29.4oz 85ft/s 435ft/s 17.2G 1,421ft 8.5s 7s
OK AeroTech G80 29.5oz 75ft/s 400ft/s 11.7G 1,470ft 8.8s 7s
OK Cesaroni G106 31.6oz 74ft/s 434ft/s 13.9G 1,516ft 8.9s 8s
OK KBA G82 33.1oz 61ft/s 404ft/s 9.5G 1,550ft 9.3s 7s
OK KBA G135 33.0oz 78ft/s 454ft/s 16.0G 1,553ft 9.0s 8s
OK AeroTech G75 33.2oz 59ft/s 404ft/s 7.6G 1,642ft 9.7s 7s
OK AeroTech H165 32.1oz 96ft/s 514ft/s 20.3G 1,734ft 9.2s 8s
OK Cesaroni G125 31.9oz 89ft/s 492ft/s 17.2G 1,737ft 9.3s 8s
OK Cesaroni G118 31.6oz 82ft/s 489ft/s 16.8G 1,745ft 9.4s 8s
OK Cesaroni H175 33.7oz 95ft/s 524ft/s 22.8G 1,754ft 9.2s 8s
OK Cesaroni H410 31.4oz 159ft/s 594ft/s 58.9G 1,776ft 8.9s 8s
OK Cesaroni H133 31.7oz 93ft/s 503ft/s 20.8G 1,779ft 9.3s 8s
OK Cesaroni G54 31.8oz 77ft/s 377ft/s 12.7G 1,801ft 9.9s 7s
OK Cesaroni H163 31.6oz 100ft/s 537ft/s 23.7G 1,808ft 9.3s 8s
OK Cesaroni H90 30.7oz 83ft/s 478ft/s 17.2G 1,835ft 9.6s 8s
OK AeroTech G138 30.2oz 84ft/s 560ft/s 19.4G 1,836ft 9.3s 8s
OK AeroTech H128 32.3oz 96ft/s 526ft/s 19.3G 1,841ft 9.4s 8s
OK Cesaroni H87 32.2oz 74ft/s 470ft/s 13.3G 1,849ft 9.8s 8s
OK AeroTech H238 31.9oz 111ft/s 557ft/s 25.7G 1,849ft 9.3s 8s
OK Cesaroni H123 33.0oz 80ft/s 521ft/s 14.2G 1,879ft 9.7s 8s
OK Cesaroni H54 32.4oz 70ft/s 388ft/s 10.2G 1,882ft 10.2s 7s
OK AeroTech H115 32.2oz 78ft/s 521ft/s 12.8G 1,917ft 9.7s 8s
OK AeroTech H97 34.8oz 70ft/s 497ft/s 10.4G 1,973ft 10.1s 8s
OK Cesaroni H118 33.2oz 87ft/s 525ft/s 17.4G 1,983ft 9.8s 8s
OK Cesaroni H42 33.5oz 49ft/s 380ft/s 7.0G 2,068ft 11.3s 7s
OK AeroTech H220 33.8oz 116ft/s 630ft/s 31.7G 2,099ft 9.7s 9s
OK AeroTech H210 33.7oz 109ft/s 640ft/s 26.3G 2,135ft 9.8s 9s
OK Cesaroni H151 33.4oz 101ft/s 594ft/s 20.9G 2,143ft 9.9s 9s
OK Cesaroni H170 33.2oz 105ft/s 631ft/s 24.7G 2,218ft 9.9s 9s
OK AeroTech H182 32.3oz 98ft/s 669ft/s 20.0G 2,223ft 9.9s 9s
OK Cesaroni H135 33.9oz 90ft/s 598ft/s 16.6G 2,238ft 10.2s 9s
OK AeroTech H180 33.9oz 107ft/s 659ft/s 26.1G 2,270ft 10.0s 9s
OK AeroTech H250 34.0oz 132ft/s 698ft/s 33.3G 2,286ft 9.9s 9s
OK AeroTech H195 31.9oz 119ft/s 721ft/s 27.6G 2,363ft 10.0s 9s
OK AeroTech H135 32.5oz 85ft/s 603ft/s 16.0G 2,390ft 10.5s 8s
OK Cesaroni H255 33.2oz 127ft/s 798ft/s 39.8G 2,583ft 10.2s 9s
warningsW,D Estes G80 29.4oz 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 (30ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (44ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (35ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (45ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (43ft/s)
failedG Estes F15 speed at end of launch guide too slow (27ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (46ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (43ft/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 (41ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (37ft/s)
failedG Apogee F10 speed at end of launch guide too slow (32ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G33 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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