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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 (696 motors didn't fit, 18 motors failed safety checks). 107 motor had thrust curves available and 231 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 Goblin 38mm MMT
Owner: Jonathan Ott
Body Diameter: 4.00in
Dry Weight: 48.0oz
MMT Diameter: 38.0mm
MMT Length: 14.00in
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 Loki G80 57.0oz 49ft/s 188ft/s 6.1G 591ft 6.3s 5s
OK AeroTech G339 54.4oz 97ft/s 226ft/s 23.9G 595ft 5.9s 5s
OK Loki G94 56.5oz 53ft/s 201ft/s 7.4G 626ft 6.4s 5s
OK Cesaroni G185 54.6oz 66ft/s 245ft/s 12.5G 698ft 6.5s 6s
OK Loki G66 56.8oz 49ft/s 198ft/s 6.3G 700ft 7.0s 5s
OK Cesaroni G115 54.9oz 51ft/s 248ft/s 7.6G 786ft 7.1s 6s
OK Loki H100 59.8oz 51ft/s 297ft/s 7.6G 1,155ft 8.4s 6s
warningsW AeroTech H283 56.7oz 84ft/s 369ft/s 20.2G 1,199ft 8.0s 7s
OK AeroTech H148 58.9oz 62ft/s 344ft/s 10.8G 1,270ft 8.5s 7s
OK AeroTech H130 56.4oz 73ft/s 336ft/s 15.6G 1,285ft 8.4s 7s
OK AeroTech H669 56.9oz 135ft/s 436ft/s 69.0G 1,329ft 8.1s 8s
OK AeroTech H123 57.7oz 54ft/s 330ft/s 8.3G 1,386ft 9.0s 7s
OK AeroTech H100 57.2oz 49ft/s 334ft/s 7.0G 1,392ft 9.1s 7s
OK Loki H90 59.8oz 53ft/s 321ft/s 7.8G 1,414ft 9.2s 7s
OK Cesaroni H123 58.5oz 49ft/s 372ft/s 7.9G 1,420ft 9.1s 7s
OK Loki H144 59.9oz 71ft/s 366ft/s 13.9G 1,424ft 8.8s 7s
OK AeroTech H219 57.2oz 79ft/s 415ft/s 17.5G 1,426ft 8.6s 7s
OK Loki H125 60.1oz 63ft/s 351ft/s 11.3G 1,439ft 9.0s 7s
OK Cesaroni H143 60.2oz 51ft/s 383ft/s 8.5G 1,443ft 9.1s 7s
OK AeroTech H242 57.3oz 71ft/s 414ft/s 13.9G 1,497ft 8.9s 7s
OK Loki H160 59.8oz 81ft/s 396ft/s 16.4G 1,524ft 8.9s 7s
OK Cesaroni H400 58.0oz 93ft/s 480ft/s 26.4G 1,535ft 8.7s 8s
OK Cesaroni H120 58.4oz 51ft/s 394ft/s 8.1G 1,598ft 9.5s 7s
OK Cesaroni H125 58.3oz 51ft/s 412ft/s 8.1G 1,634ft 9.6s 7s
OK Cesaroni H225 54.8oz 75ft/s 494ft/s 15.9G 1,693ft 9.1s 8s
OK Cesaroni H152 58.5oz 62ft/s 434ft/s 12.1G 1,699ft 9.5s 8s
OK AeroTech H178 59.4oz 59ft/s 459ft/s 11.6G 1,711ft 9.5s 8s
OK Cesaroni H100 59.5oz 49ft/s 394ft/s 6.1G 1,748ft 10.2s 7s
OK AeroTech H550 59.1oz 121ft/s 582ft/s 38.7G 1,818ft 9.1s 8s
OK AeroTech H550 59.4oz 121ft/s 575ft/s 38.3G 1,823ft 9.1s 9s
OK AeroTech H999 59.7oz 161ft/s 611ft/s 96.0G 1,841ft 9.1s 9s
warningsW Cesaroni H565 60.8oz 114ft/s 585ft/s 35.8G 1,842ft 9.2s 9s
OK AeroTech I218 61.1oz 76ft/s 496ft/s 15.8G 1,865ft 9.6s 8s
OK AeroTech H170 59.6oz 64ft/s 478ft/s 11.1G 1,900ft 9.9s 8s
OK AeroTech I180 61.6oz 88ft/s 461ft/s 20.2G 1,913ft 9.7s 8s
OK AeroTech I161 60.9oz 66ft/s 471ft/s 11.8G 1,966ft 10.0s 8s
OK Cesaroni I180 61.9oz 59ft/s 510ft/s 10.8G 1,984ft 10.1s 8s
OK AeroTech I245 60.9oz 91ft/s 531ft/s 23.3G 2,021ft 9.7s 8s
OK AeroTech I357 60.1oz 91ft/s 561ft/s 21.7G 2,030ft 9.7s 8s
OK AeroTech I140 60.6oz 59ft/s 457ft/s 9.6G 2,031ft 10.3s 8s
OK AeroTech I225 65.1oz 65ft/s 522ft/s 13.8G 2,037ft 10.0s 8s
OK Cesaroni I212 64.8oz 63ft/s 540ft/s 12.5G 2,074ft 10.2s 9s
OK Cesaroni I566 61.6oz 104ft/s 663ft/s 35.0G 2,079ft 9.6s 9s
OK AeroTech I154 65.4oz 53ft/s 456ft/s 8.2G 2,230ft 11.1s 8s
OK Cesaroni I800 64.1oz 126ft/s 736ft/s 47.5G 2,238ft 9.8s 9s
OK Cesaroni I345 61.9oz 85ft/s 646ft/s 21.7G 2,243ft 10.1s 9s
OK AeroTech I1299 62.9oz 171ft/s 772ft/s 86.1G 2,259ft 9.7s 9s
OK Cesaroni I195 62.7oz 66ft/s 559ft/s 12.6G 2,273ft 10.6s 9s
OK AeroTech I285 65.4oz 82ft/s 610ft/s 19.8G 2,283ft 10.3s 9s
OK Cesaroni I170 61.8oz 65ft/s 573ft/s 12.1G 2,334ft 10.7s 8s
OK Cesaroni I236 62.1oz 75ft/s 605ft/s 17.0G 2,347ft 10.5s 9s
OK AeroTech I305 68.5oz 84ft/s 619ft/s 20.5G 2,353ft 10.3s 9s
OK Cesaroni I175 63.4oz 61ft/s 558ft/s 9.8G 2,355ft 10.8s 8s
OK AeroTech I300 63.6oz 95ft/s 639ft/s 25.4G 2,395ft 10.3s 9s
OK AeroTech I211 64.0oz 77ft/s 579ft/s 17.0G 2,406ft 10.6s 8s
OK Cesaroni I223 65.4oz 68ft/s 610ft/s 13.0G 2,407ft 10.7s 9s
OK AeroTech I195 68.2oz 78ft/s 571ft/s 18.1G 2,425ft 10.7s 8s
OK Loki I316 67.0oz 102ft/s 652ft/s 25.9G 2,515ft 10.5s 9s
OK Cesaroni I287 69.3oz 74ft/s 676ft/s 16.1G 2,577ft 10.8s 9s
OK Loki I405 67.2oz 124ft/s 712ft/s 42.1G 2,581ft 10.4s 9s
OK Loki I210 67.0oz 84ft/s 610ft/s 22.7G 2,651ft 10.9s 9s
OK Cesaroni I285 65.8oz 80ft/s 697ft/s 18.3G 2,700ft 10.9s 9s
OK Loki I377 67.8oz 115ft/s 713ft/s 34.0G 2,707ft 10.7s 9s
OK Loki I430 67.0oz 94ft/s 779ft/s 27.6G 2,708ft 10.7s 10s
warningsW Loki I110 68.8oz 57ft/s 509ft/s 12.8G 2,711ft 11.8s 8s
OK Cesaroni I470 65.5oz 108ft/s 820ft/s 29.6G 2,745ft 10.6s 10s
OK AeroTech I366 67.6oz 96ft/s 744ft/s 25.1G 2,747ft 10.8s 9s
OK Cesaroni I255 66.2oz 75ft/s 686ft/s 16.1G 2,748ft 11.1s 9s
OK AeroTech I327 70.2oz 91ft/s 735ft/s 21.2G 2,753ft 10.9s 9s
OK AeroTech I364 71.9oz 82ft/s 722ft/s 19.5G 2,766ft 10.9s 9s
OK AMW I297 68.8oz 82ft/s 724ft/s 18.5G 2,779ft 11.0s 9s
OK Cesaroni I303 65.6oz 83ft/s 735ft/s 21.6G 2,811ft 11.0s 9s
OK AeroTech I435 66.3oz 120ft/s 816ft/s 40.1G 2,844ft 10.7s 9s
OK AeroTech I280 69.7oz 77ft/s 727ft/s 16.4G 2,857ft 11.2s 9s
OK Cesaroni I242 67.4oz 73ft/s 696ft/s 14.2G 2,892ft 11.4s 9s
OK AeroTech I284 67.6oz 94ft/s 761ft/s 24.7G 2,941ft 11.0s 9s
OK Cesaroni I350 75.6oz 82ft/s 763ft/s 18.1G 2,941ft 11.3s 10s
OK AeroTech I500 68.3oz 103ft/s 882ft/s 29.4G 3,002ft 10.9s 10s
OK AeroTech I600 69.2oz 118ft/s 906ft/s 41.7G 3,022ft 10.9s 10s
OK AeroTech I59 65.2oz 54ft/s 357ft/s 8.2G 3,056ft 14.2s 6s
OK AeroTech I350 69.7oz 92ft/s 859ft/s 23.9G 3,103ft 11.2s 10s
OK AeroTech J350 71.5oz 115ft/s 849ft/s 40.5G 3,104ft 11.1s 10s
OK AeroTech J420 70.9oz 96ft/s 848ft/s 27.4G 3,108ft 11.2s 10s
OK AeroTech J340 68.4oz 105ft/s 833ft/s 30.6G 3,134ft 11.1s 9s
OK Cesaroni J357 69.2oz 92ft/s 849ft/s 25.8G 3,177ft 11.3s 10s
OK Cesaroni J285 69.0oz 80ft/s 791ft/s 17.8G 3,211ft 11.6s 9s
OK AeroTech J425 70.3oz 87ft/s 912ft/s 21.5G 3,217ft 11.3s 10s
OK AeroTech J500 71.1oz 120ft/s 937ft/s 39.2G 3,298ft 11.2s 10s
OK AeroTech J270 70.6oz 79ft/s 806ft/s 17.2G 3,392ft 11.8s 9s

W Motor total weight unknown, lift-off Weight not accurate.

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 G67 speed at end of launch guide too slow (43ft/s)
failedG Loki G69 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (40ft/s)
failedG Loki G70 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (41ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (30ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (38ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (46ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (39ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (32ft/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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