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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 119 motors that fit and appear to have enough thrust (681 motors didn't fit, 11 motors failed safety checks). 127 motor had thrust curves available and 221 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:   Honest John
Owner: Ross Ohmen
Body Diameter: 5.50in
Dry Weight: 106.0oz
MMT Diameter: 54.0mm
MMT Length: 50.0cm
CD: 0.60

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 124.6oz 56ft/s 291ft/s 6.5G 1,112ft 8.5s 7s
OK AeroTech I599 124.1oz 104ft/s 354ft/s 21.1G 1,173ft 8.0s 7s
OK AeroTech I229 124.1oz 55ft/s 310ft/s 6.9G 1,183ft 8.6s 7s
OK Cesaroni I445 126.3oz 79ft/s 387ft/s 14.0G 1,398ft 8.8s 8s
OK Cesaroni I218 126.5oz 57ft/s 341ft/s 6.5G 1,445ft 9.4s 7s
OK Cesaroni I100 134.5oz 52ft/s 261ft/s 7.2G 1,841ft 11.9s 3s
OK Cesaroni J250 135.3oz 50ft/s 435ft/s 6.1G 1,991ft 10.9s 8s
OK AeroTech J250 138.0oz 53ft/s 439ft/s 6.7G 2,051ft 10.9s 8s
OK Cesaroni J280 139.7oz 56ft/s 462ft/s 6.9G 2,062ft 10.9s 8s
OK Cesaroni J145 135.5oz 55ft/s 339ft/s 11.9G 2,092ft 11.6s 7s
OK Cesaroni J1055 133.2oz 122ft/s 605ft/s 29.4G 2,106ft 9.9s 9s
OK AeroTech J250 131.0oz 64ft/s 432ft/s 8.2G 2,114ft 10.9s 8s
OK AeroTech J315 136.0oz 64ft/s 477ft/s 8.9G 2,200ft 10.9s 8s
OK AeroTech J1299 135.4oz 134ft/s 687ft/s 37.9G 2,353ft 10.3s 10s
OK Cesaroni J430 134.2oz 74ft/s 566ft/s 13.0G 2,368ft 10.9s 9s
OK Cesaroni J240 136.9oz 55ft/s 470ft/s 6.6G 2,373ft 11.6s 8s
OK Gorilla J365 148.5oz 54ft/s 537ft/s 10.7G 2,373ft 11.3s 9s
OK AeroTech J180 134.5oz 62ft/s 413ft/s 7.7G 2,376ft 11.7s 7s
OK AeroTech J460 133.8oz 80ft/s 575ft/s 13.7G 2,417ft 10.9s 9s
OK Cesaroni J293 135.6oz 59ft/s 510ft/s 8.4G 2,430ft 11.5s 9s
OK AeroTech J275 136.5oz 58ft/s 471ft/s 7.6G 2,437ft 11.6s 8s
OK Cesaroni J244 138.1oz 52ft/s 483ft/s 5.9G 2,486ft 12.0s 9s
OK AMW J1365 145.5oz 131ft/s 705ft/s 37.3G 2,494ft 10.6s 10s
OK Cesaroni J210 135.7oz 56ft/s 427ft/s 7.7G 2,503ft 12.2s 8s
OK AMW J400 154.7oz 62ft/s 574ft/s 9.4G 2,627ft 11.7s 9s
OK Loki J350 150.4oz 61ft/s 573ft/s 9.5G 2,658ft 11.8s 9s
OK AMW J475 155.7oz 72ft/s 622ft/s 12.7G 2,734ft 11.6s 9s
OK AeroTech J1799 145.2oz 154ft/s 826ft/s 52.2G 2,740ft 10.7s 10s
OK Gorilla J167 148.9oz 59ft/s 397ft/s 7.9G 2,767ft 13.1s 7s
OK Cesaroni J1520 142.2oz 140ft/s 830ft/s 40.6G 2,771ft 10.8s 10s
OK Gorilla J465 147.7oz 67ft/s 643ft/s 14.1G 2,808ft 11.7s 9s
OK Cesaroni J360 144.9oz 60ft/s 596ft/s 12.4G 2,809ft 12.0s 9s
OK Cesaroni J380 151.6oz 63ft/s 613ft/s 8.6G 2,831ft 12.0s 9s
OK Gorilla J395 146.9oz 65ft/s 616ft/s 9.9G 2,841ft 12.0s 9s
OK AeroTech J450 149.1oz 71ft/s 640ft/s 11.7G 2,872ft 11.9s 10s
OK Gorilla J485 148.0oz 72ft/s 664ft/s 12.7G 2,898ft 11.8s 10s
OK Loki J820 148.7oz 112ft/s 751ft/s 24.2G 2,932ft 11.3s 10s
OK AMW J395 150.7oz 69ft/s 608ft/s 10.2G 2,935ft 12.2s 9s
OK Gorilla J535 149.2oz 86ft/s 693ft/s 15.3G 2,938ft 11.6s 10s
OK Gorilla J450 157.3oz 65ft/s 641ft/s 12.4G 2,945ft 12.2s 10s
OK AMW K1720 153.7oz 142ft/s 855ft/s 44.8G 2,948ft 11.1s 10s
OK AMW J440 149.4oz 97ft/s 665ft/s 18.4G 2,950ft 11.6s 10s
OK Loki J525 149.7oz 83ft/s 700ft/s 14.2G 2,956ft 11.7s 10s
OK AMW J325 149.4oz 74ft/s 551ft/s 12.0G 3,007ft 12.4s 9s
OK AeroTech J540 144.2oz 86ft/s 698ft/s 15.7G 3,027ft 11.7s 9s
OK AeroTech J401 138.2oz 74ft/s 660ft/s 11.5G 3,052ft 12.0s 9s
OK AMW J745 149.0oz 99ft/s 769ft/s 20.0G 3,094ft 11.7s 10s
OK AMW J475 158.7oz 75ft/s 669ft/s 12.3G 3,201ft 12.4s 9s
OK AeroTech J800 144.3oz 102ft/s 794ft/s 22.7G 3,211ft 11.7s 10s
OK Cesaroni J355 147.4oz 66ft/s 622ft/s 9.5G 3,215ft 12.6s 9s
OK Cesaroni J760 144.0oz 102ft/s 826ft/s 21.5G 3,237ft 11.7s 10s
OK AeroTech K2050 151.6oz 155ft/s 1,004ft/s 50.2G 3,288ft 11.4s 11s
OK Cesaroni K2045 151.5oz 155ft/s 1,035ft/s 51.9G 3,301ft 11.3s 11s
OK AMW K665 167.3oz 83ft/s 764ft/s 16.1G 3,301ft 12.2s 10s
OK Loki J175 150.1oz 63ft/s 472ft/s 9.1G 3,306ft 13.7s 7s
OK Loki J300 152.4oz 64ft/s 574ft/s 8.5G 3,312ft 13.1s 9s
OK Cesaroni J295 145.5oz 69ft/s 571ft/s 9.8G 3,313ft 12.9s 9s
OK Cesaroni J449 145.6oz 77ft/s 718ft/s 12.9G 3,334ft 12.4s 10s
OK AeroTech J415 147.2oz 72ft/s 678ft/s 11.9G 3,337ft 12.5s 9s
OK AeroTech K456 158.3oz 69ft/s 698ft/s 10.8G 3,353ft 12.6s 10s
OK Cesaroni K360 149.5oz 63ft/s 666ft/s 8.4G 3,427ft 13.0s 10s
OK Gorilla K555 161.6oz 73ft/s 773ft/s 13.1G 3,477ft 12.7s 10s
OK Gorilla K520 156.9oz 74ft/s 754ft/s 12.2G 3,479ft 12.7s 10s
OK Gorilla K630 161.0oz 82ft/s 797ft/s 16.1G 3,480ft 12.4s 10s
OK AeroTech K400 148.1oz 77ft/s 674ft/s 12.1G 3,488ft 12.8s 10s
OK KBA K700 159.0oz 89ft/s 854ft/s 18.1G 3,496ft 12.2s 10s
OK Cesaroni K454 155.1oz 72ft/s 715ft/s 11.7G 3,504ft 12.8s 10s
OK Cesaroni K530 163.8oz 73ft/s 768ft/s 11.1G 3,505ft 12.7s 10s
OK Gorilla K533 166.6oz 72ft/s 751ft/s 14.1G 3,522ft 12.7s 10s
OK AMW K475 158.6oz 71ft/s 739ft/s 11.3G 3,532ft 12.8s 10s
OK Gorilla K222 162.3oz 62ft/s 486ft/s 8.4G 3,574ft 14.3s 8s
OK AeroTech K695 158.5oz 89ft/s 836ft/s 19.7G 3,577ft 12.3s 10s
OK AeroTech K513 164.1oz 78ft/s 777ft/s 12.9G 3,594ft 12.7s 10s
OK AMW K535 161.0oz 80ft/s 753ft/s 13.1G 3,595ft 12.8s 10s
OK AeroTech K535 150.6oz 85ft/s 754ft/s 14.3G 3,604ft 12.6s 10s
OK AeroTech K1100 153.1oz 121ft/s 957ft/s 30.5G 3,683ft 12.0s 10s
OK AMW K935 159.2oz 108ft/s 926ft/s 23.4G 3,694ft 12.3s 11s
OK AMW K610 168.3oz 79ft/s 791ft/s 14.9G 3,703ft 12.8s 10s
OK AMW K455 159.1oz 88ft/s 705ft/s 16.5G 3,737ft 13.0s 10s
OK Cesaroni K940 154.2oz 108ft/s 976ft/s 24.8G 3,794ft 12.2s 10s
OK AMW K700 179.7oz 83ft/s 846ft/s 14.9G 3,803ft 12.8s 10s
OK AeroTech K185 156.6oz 55ft/s 524ft/s 6.6G 3,805ft 14.6s 7s
OK Loki K690 190.7oz 79ft/s 851ft/s 14.2G 3,825ft 13.0s 11s
OK AeroTech K540 151.0oz 92ft/s 806ft/s 19.4G 3,858ft 12.6s 9s
OK AMW K855 180.8oz 90ft/s 909ft/s 18.8G 3,865ft 12.7s 11s
OK AeroTech K550 158.5oz 85ft/s 786ft/s 16.8G 3,890ft 12.9s 10s
OK Cesaroni K500 158.1oz 75ft/s 780ft/s 12.6G 3,909ft 13.2s 10s
OK Gorilla K700 166.5oz 83ft/s 892ft/s 16.2G 3,952ft 13.0s 11s
OK Gorilla K763 169.2oz 86ft/s 923ft/s 17.4G 3,969ft 12.9s 11s
OK Cesaroni K630 155.7oz 90ft/s 883ft/s 17.3G 3,970ft 12.8s 10s
OK Cesaroni K515 164.3oz 77ft/s 790ft/s 13.8G 3,994ft 13.2s 10s
OK AeroTech K1103 157.5oz 132ft/s 1,052ft/s 35.8G 3,996ft 12.3s 11s
OK Gorilla K805 168.6oz 89ft/s 937ft/s 21.6G 3,999ft 12.8s 11s
OK Cesaroni K650 176.2oz 81ft/s 886ft/s 12.9G 4,002ft 13.1s 10s
OK AeroTech K805 160.4oz 93ft/s 930ft/s 18.9G 4,020ft 12.8s 10s
OK Cesaroni K400 160.7oz 69ft/s 716ft/s 9.7G 4,035ft 13.8s 10s
OK Cesaroni K445 155.3oz 84ft/s 743ft/s 14.4G 4,074ft 13.4s 10s
OK AMW K710 169.9oz 93ft/s 881ft/s 17.6G 4,118ft 13.1s 10s
OK Cesaroni K520 161.6oz 80ft/s 815ft/s 12.7G 4,121ft 13.4s 10s
OK Gorilla K327 170.1oz 74ft/s 622ft/s 13.4G 4,135ft 14.1s 9s
OK AMW K670 172.5oz 93ft/s 884ft/s 16.4G 4,146ft 13.2s 11s
OK AMW K1250 170.0oz 128ft/s 1,078ft/s 33.2G 4,171ft 12.6s 11s
OK Cesaroni K740 157.8oz 96ft/s 961ft/s 18.8G 4,225ft 12.9s 10s
OK Loki K960 167.6oz 125ft/s 1,028ft/s 32.1G 4,226ft 12.7s 11s
OK Cesaroni K1200 163.6oz 118ft/s 1,128ft/s 29.2G 4,251ft 12.6s 11s
OK AMW K580 170.3oz 93ft/s 832ft/s 21.8G 4,296ft 13.4s 10s
OK Cesaroni K160 157.9oz 49ft/s 478ft/s 5.0G 4,341ft 16.5s 7s
OK Cesaroni K635 168.4oz 88ft/s 908ft/s 15.4G 4,442ft 13.5s 10s
OK Cesaroni K650 166.3oz 95ft/s 922ft/s 25.6G 4,457ft 13.3s 10s
OK Loki K250 169.2oz 74ft/s 573ft/s 16.0G 4,478ft 15.5s 9s
OK Cesaroni K780 166.0oz 100ft/s 1,024ft/s 20.7G 4,534ft 13.2s 10s
OK Loki K527 175.6oz 81ft/s 852ft/s 14.6G 4,588ft 14.1s 10s
OK Cesaroni K490 171.4oz 76ft/s 819ft/s 11.3G 4,640ft 14.2s 10s
OK Cesaroni K570 165.4oz 96ft/s 874ft/s 18.5G 4,680ft 13.7s 10s
OK Cesaroni K600 172.7oz 84ft/s 907ft/s 15.2G 4,711ft 13.9s 10s
OK Cesaroni K261 174.1oz 56ft/s 637ft/s 6.3G 5,142ft 16.4s 7s
warningsD AMW K590 166.6oz 13:1 thrust/weight ratio (no data)
warningsD Gorilla K695 158.8oz 16:1 thrust/weight ratio (no data)
warningsD Gorilla K828 170.8oz 17:1 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 (36ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (41ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (37ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (45ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (39ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (44ft/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.)

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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