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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 89 motors that fit and appear to have enough thrust (692 motors didn't fit, 13 motors failed safety checks). 100 motor had thrust curves available and 175 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:   The Big Cletus
Owner: Kevin Katz
Body Diameter: 5.50in
Dry Weight: 85.0oz
MMT Diameter: 54.0mm
MMT Length: 16.00in
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 I215 103.5oz 54ft/s 337ft/s 8.0G 1,178ft 8.2s 6s
OK AeroTech I599 103.0oz 96ft/s 419ft/s 25.5G 1,185ft 7.6s 7s
OK AeroTech I229 103.1oz 53ft/s 359ft/s 8.4G 1,233ft 8.3s 7s
OK Cesaroni I445 105.2oz 71ft/s 450ft/s 16.8G 1,380ft 8.2s 7s
OK Cesaroni I218 105.4oz 53ft/s 382ft/s 7.9G 1,463ft 9.0s 7s
OK Cesaroni J1055 112.2oz 114ft/s 694ft/s 34.6G 1,891ft 8.9s 8s
OK Cesaroni I100 113.4oz 49ft/s 287ft/s 8.7G 1,914ft 11.5s 3s
OK Cesaroni J280 118.6oz 53ft/s 501ft/s 8.0G 1,954ft 10.0s 8s
OK AeroTech J250 117.0oz 50ft/s 472ft/s 7.6G 1,955ft 10.1s 7s
OK AeroTech J250 109.9oz 59ft/s 465ft/s 9.8G 1,998ft 9.9s 7s
OK AeroTech J315 115.0oz 60ft/s 509ft/s 10.6G 2,056ft 10.0s 7s
OK Cesaroni J145 114.5oz 51ft/s 362ft/s 14.2G 2,062ft 10.9s 6s
OK AeroTech J1299 114.4oz 131ft/s 783ft/s 44.8G 2,069ft 9.1s 8s
OK Cesaroni J430 113.2oz 72ft/s 611ft/s 15.6G 2,156ft 9.8s 8s
OK AeroTech J460 112.8oz 76ft/s 619ft/s 16.2G 2,184ft 9.7s 8s
OK Gorilla J365 127.4oz 51ft/s 579ft/s 12.3G 2,193ft 10.3s 8s
OK AMW J1365 124.4oz 118ft/s 796ft/s 43.8G 2,194ft 9.4s 9s
OK Cesaroni J240 115.8oz 52ft/s 491ft/s 7.9G 2,229ft 10.6s 7s
OK Cesaroni J293 114.6oz 58ft/s 537ft/s 10.2G 2,253ft 10.4s 8s
OK AeroTech J180 113.5oz 59ft/s 438ft/s 9.3G 2,255ft 10.8s 6s
OK AeroTech J275 115.4oz 55ft/s 498ft/s 8.9G 2,271ft 10.6s 7s
OK Cesaroni J244 117.1oz 50ft/s 501ft/s 7.1G 2,330ft 11.0s 8s
OK AeroTech J1799 124.1oz 146ft/s 930ft/s 61.1G 2,340ft 9.3s 9s
OK Cesaroni J1520 121.2oz 133ft/s 931ft/s 47.1G 2,369ft 9.4s 9s
OK AMW J400 133.7oz 58ft/s 607ft/s 10.6G 2,390ft 10.6s 8s
OK Cesaroni J210 114.7oz 54ft/s 438ft/s 9.2G 2,395ft 11.3s 7s
OK Loki J350 129.4oz 58ft/s 607ft/s 10.6G 2,425ft 10.6s 8s
OK AMW J475 134.7oz 66ft/s 658ft/s 14.2G 2,453ft 10.4s 8s
OK Gorilla J465 126.6oz 65ft/s 678ft/s 15.1G 2,506ft 10.4s 8s
OK AMW K1720 132.6oz 132ft/s 952ft/s 51.4G 2,525ft 9.7s 9s
OK Cesaroni J360 123.9oz 57ft/s 618ft/s 14.7G 2,543ft 10.8s 8s
OK Loki J820 127.6oz 106ft/s 812ft/s 28.3G 2,543ft 9.9s 8s
OK Cesaroni J380 130.6oz 58ft/s 639ft/s 9.6G 2,552ft 10.8s 8s
OK Gorilla J395 125.9oz 58ft/s 642ft/s 11.0G 2,564ft 10.8s 8s
OK AeroTech J450 128.1oz 65ft/s 673ft/s 13.2G 2,577ft 10.7s 8s
OK Gorilla J485 126.9oz 66ft/s 696ft/s 14.4G 2,579ft 10.5s 8s
OK Gorilla J535 128.2oz 85ft/s 733ft/s 18.0G 2,595ft 10.3s 8s
OK Loki J525 128.7oz 78ft/s 736ft/s 16.6G 2,610ft 10.4s 8s
OK AMW J440 128.3oz 94ft/s 706ft/s 21.5G 2,613ft 10.3s 8s
OK Gorilla J450 136.3oz 57ft/s 671ft/s 14.0G 2,640ft 10.9s 8s
OK Gorilla J167 127.8oz 54ft/s 411ft/s 9.4G 2,643ft 12.2s 6s
OK AMW J395 129.7oz 63ft/s 629ft/s 11.9G 2,649ft 10.9s 8s
OK AeroTech J540 123.2oz 80ft/s 719ft/s 18.3G 2,652ft 10.3s 8s
OK AMW J745 128.0oz 94ft/s 815ft/s 23.2G 2,694ft 10.3s 9s
OK AeroTech J401 117.1oz 68ft/s 677ft/s 13.7G 2,710ft 10.6s 8s
OK AMW J325 128.3oz 71ft/s 560ft/s 14.2G 2,735ft 11.2s 8s
OK Cesaroni K2045 130.5oz 141ft/s 1,143ft/s 59.3G 2,750ft 9.8s 9s
OK AeroTech K2050 130.5oz 146ft/s 1,104ft/s 57.8G 2,751ft 9.8s 9s
OK AeroTech J800 123.3oz 96ft/s 829ft/s 26.7G 2,772ft 10.2s 8s
OK Cesaroni J760 122.9oz 91ft/s 867ft/s 25.3G 2,789ft 10.2s 9s
OK AMW J475 137.6oz 71ft/s 693ft/s 14.4G 2,859ft 11.1s 8s
OK AMW K665 146.2oz 77ft/s 793ft/s 17.6G 2,879ft 10.7s 9s
OK Cesaroni J355 126.4oz 62ft/s 625ft/s 11.1G 2,881ft 11.3s 8s
OK Cesaroni J449 124.5oz 69ft/s 729ft/s 15.2G 2,938ft 11.0s 8s
OK AeroTech J415 126.2oz 68ft/s 688ft/s 13.8G 2,952ft 11.1s 8s
OK AeroTech K456 137.3oz 66ft/s 710ft/s 12.6G 2,968ft 11.2s 8s
OK Cesaroni J295 124.4oz 64ft/s 566ft/s 11.7G 2,996ft 11.6s 8s
OK Loki J300 131.3oz 61ft/s 574ft/s 10.1G 3,010ft 11.9s 8s
OK KBA K700 138.0oz 86ft/s 892ft/s 20.6G 3,015ft 10.7s 9s
OK Gorilla K630 140.0oz 74ft/s 824ft/s 17.7G 3,027ft 10.9s 9s
OK Gorilla K555 140.6oz 68ft/s 796ft/s 14.7G 3,048ft 11.2s 9s
OK Gorilla K520 135.8oz 67ft/s 769ft/s 13.6G 3,055ft 11.3s 9s
OK Cesaroni K360 128.4oz 59ft/s 667ft/s 9.8G 3,056ft 11.6s 8s
OK Cesaroni K530 142.8oz 69ft/s 779ft/s 12.5G 3,065ft 11.2s 9s
OK Loki J175 129.1oz 58ft/s 481ft/s 10.7G 3,077ft 12.6s 6s
OK AeroTech K695 137.4oz 84ft/s 851ft/s 22.7G 3,078ft 10.7s 9s
OK Cesaroni K454 134.0oz 65ft/s 719ft/s 13.7G 3,091ft 11.3s 8s
OK AeroTech K400 127.1oz 73ft/s 674ft/s 14.3G 3,101ft 11.4s 8s
OK AeroTech K1100 132.1oz 115ft/s 990ft/s 35.5G 3,115ft 10.4s 9s
OK AeroTech K513 143.1oz 74ft/s 790ft/s 14.9G 3,135ft 11.2s 8s
OK AeroTech K535 129.5oz 78ft/s 753ft/s 16.8G 3,144ft 11.1s 8s
OK AMW K935 138.2oz 99ft/s 960ft/s 27.0G 3,152ft 10.7s 9s
OK AMW K535 140.0oz 74ft/s 762ft/s 15.1G 3,156ft 11.4s 9s
OK Cesaroni K940 133.2oz 100ft/s 1,001ft/s 28.9G 3,214ft 10.6s 9s
OK AMW K455 138.0oz 81ft/s 706ft/s 19.2G 3,294ft 11.5s 8s
OK Gorilla K222 141.3oz 58ft/s 489ft/s 9.7G 3,317ft 13.2s 7s
OK AeroTech K540 129.9oz 90ft/s 807ft/s 22.7G 3,337ft 11.0s 8s
OK AeroTech K1103 136.4oz 119ft/s 1,080ft/s 41.5G 3,357ft 10.6s 9s
OK AeroTech K550 137.4oz 80ft/s 792ft/s 19.0G 3,382ft 11.3s 8s
OK Cesaroni K500 137.0oz 70ft/s 767ft/s 14.5G 3,411ft 11.6s 8s
OK Cesaroni K630 134.7oz 81ft/s 881ft/s 20.1G 3,413ft 11.2s 8s
OK AeroTech K805 139.4oz 89ft/s 928ft/s 21.7G 3,437ft 11.1s 9s
OK Cesaroni K1200 142.5oz 105ft/s 1,143ft/s 33.7G 3,554ft 10.8s 9s
OK Cesaroni K400 139.7oz 67ft/s 696ft/s 11.3G 3,572ft 12.3s 8s
OK Cesaroni K445 134.3oz 78ft/s 724ft/s 16.9G 3,573ft 11.8s 8s
OK Cesaroni K520 140.6oz 75ft/s 801ft/s 14.8G 3,589ft 11.8s 9s
OK Cesaroni K740 136.8oz 91ft/s 956ft/s 21.7G 3,604ft 11.2s 9s
warningsD AMW K590 145.5oz 15:1 thrust/weight ratio (no data)
warningsD Gorilla K695 137.8oz 18:1 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 AeroTech I117 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (38ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (35ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (45ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (46ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (37ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni K160 speed at end of launch guide too slow (47ft/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.)

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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