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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 94 motors that fit and appear to have enough thrust (692 motors didn't fit, 17 motors failed safety checks). 109 motor had thrust curves available and 219 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:   Hobgoblin
Owner: Brian Rennaker
Body Diameter: 67.0mm
Dry Weight: 515g
MMT Diameter: 29.0mm
MMT Length: 335.0mm
CD: 0.44

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 Cesaroni F36 619g 15m/s 59m/s 12.1G 170m 6.1s 5s
OK Cesaroni F36 616g 15m/s 69m/s 6.1G 229m 7.1s 6s
OK AeroTech F23 597g 15m/s 63m/s 7.3G 240m 7.4s 5s
OK AeroTech F62 624g 19m/s 76m/s 9.5G 245m 7.1s 6s
OK Cesaroni F120 621g 28m/s 85m/s 22.7G 262m 7.1s 7s
OK Cesaroni F59 614g 20m/s 82m/s 10.7G 271m 7.4s 6s
OK AeroTech F42 591g 20m/s 77m/s 10.9G 272m 7.4s 6s
OK AeroTech F20 595g 16m/s 68m/s 7.2G 275m 7.7s 5s
OK AeroTech F67 595g 23m/s 93m/s 13.8G 313m 7.7s 7s
OK AeroTech F50 600g 20m/s 97m/s 11.3G 354m 8.2s 7s
OK AeroTech F25 605g 18m/s 83m/s 8.7G 362m 8.6s 6s
OK AeroTech F52 637g 21m/s 95m/s 11.7G 362m 8.4s 7s
OK AeroTech F40 641g 19m/s 93m/s 9.8G 390m 8.8s 7s
OK AeroTech G54 652g 20m/s 103m/s 11.8G 405m 8.8s 7s
warningsW Estes F50 599g 21m/s 107m/s 12.4G 407m 8.7s 7s
OK Cesaroni G88 667g 23m/s 115m/s 16.8G 419m 8.8s 8s
OK AeroTech G104 651g 27m/s 118m/s 18.1G 432m 8.8s 8s
OK AeroTech G38 641g 16m/s 99m/s 7.4G 445m 9.5s 7s
OK AeroTech G74 602g 22m/s 125m/s 14.4G 456m 9.0s 8s
OK AeroTech G53 661g 22m/s 111m/s 12.4G 465m 9.3s 7s
OK Cesaroni G80 658g 21m/s 128m/s 14.3G 482m 9.3s 8s
OK AeroTech G77 680g 19m/s 132m/s 12.6G 515m 9.7s 8s
warningsW Estes G40 638g 19m/s 117m/s 10.7G 521m 9.8s 8s
OK AeroTech G40 638g 19m/s 117m/s 10.7G 521m 9.8s 8s
OK AeroTech G77 638g 21m/s 141m/s 14.8G 533m 9.6s 8s
OK AeroTech G79 672g 22m/s 137m/s 14.1G 545m 9.8s 8s
OK Cesaroni G83 660g 24m/s 140m/s 14.5G 550m 9.8s 8s
OK Cesaroni G68 671g 20m/s 134m/s 13.0G 553m 10.0s 8s
OK AeroTech G79 639g 19m/s 138m/s 11.9G 557m 10.0s 8s
OK Cesaroni G57 661g 21m/s 129m/s 12.6G 561m 10.1s 8s
OK Cesaroni G250 656g 36m/s 163m/s 44.3G 562m 9.5s 9s
OK AeroTech G76 662g 29m/s 138m/s 22.2G 590m 9.9s 8s
OK Cesaroni G126 660g 27m/s 159m/s 23.6G 594m 9.8s 9s
OK AeroTech G64 666g 24m/s 136m/s 15.6G 608m 10.2s 8s
OK Cesaroni G131 715g 27m/s 162m/s 20.1G 616m 10.1s 9s
OK AeroTech G75 646g 23m/s 150m/s 14.9G 620m 10.2s 8s
OK AeroTech G78 640g 23m/s 158m/s 15.2G 633m 10.2s 9s
OK AeroTech G125 640g 26m/s 177m/s 22.9G 644m 10.1s 9s
OK AeroTech G80 643g 24m/s 163m/s 15.5G 666m 10.4s 9s
OK Cesaroni G106 702g 23m/s 174m/s 18.1G 684m 10.6s 9s
OK KBA G82 746g 19m/s 161m/s 12.5G 697m 11.0s 9s
OK KBA G135 741g 24m/s 180m/s 20.8G 697m 10.6s 10s
OK AeroTech G75 748g 19m/s 162m/s 9.9G 736m 11.3s 9s
OK AeroTech H165 717g 30m/s 205m/s 26.4G 770m 10.8s 10s
OK Cesaroni G125 710g 27m/s 197m/s 22.2G 773m 10.9s 10s
OK Cesaroni H175 762g 30m/s 207m/s 29.9G 776m 10.8s 10s
OK Cesaroni G118 703g 26m/s 196m/s 21.7G 778m 11.0s 10s
OK Cesaroni H410 698g 49m/s 236m/s 76.6G 787m 10.6s 10s
OK Cesaroni H133 705g 28m/s 201m/s 26.8G 791m 11.0s 10s
OK Cesaroni H163 702g 30m/s 214m/s 30.6G 802m 10.9s 10s
OK Cesaroni G54 708g 25m/s 153m/s 16.4G 803m 11.6s 9s
OK AeroTech H128 721g 29m/s 209m/s 24.9G 814m 11.0s 10s
OK AeroTech G138 663g 26m/s 226m/s 25.8G 814m 10.9s 10s
OK Cesaroni H90 678g 27m/s 194m/s 22.4G 815m 11.2s 9s
OK AeroTech H238 711g 35m/s 221m/s 33.3G 817m 10.9s 10s
OK Cesaroni H87 720g 23m/s 189m/s 17.2G 821m 11.4s 10s
OK Cesaroni H123 743g 25m/s 207m/s 18.2G 831m 11.3s 10s
OK Cesaroni H54 724g 22m/s 158m/s 13.2G 837m 11.9s 8s
OK AeroTech H115 720g 24m/s 209m/s 16.6G 844m 11.3s 10s
OK AeroTech H97 793g 22m/s 197m/s 13.3G 868m 11.8s 10s
OK Cesaroni H118 747g 27m/s 209m/s 22.2G 873m 11.5s 10s
OK Cesaroni H237 809g 35m/s 247m/s 35.6G 904m 11.4s 10s
OK AeroTech H220 765g 36m/s 247m/s 39.9G 919m 11.4s 10s
OK Cesaroni H42 757g 16m/s 155m/s 9.1G 920m 13.0s 9s
OK KBA H130 1,224g 24m/s 173m/s 17.3G 931m 12.8s 11s
OK AeroTech H210 761g 33m/s 252m/s 33.9G 935m 11.5s 10s
OK Cesaroni H151 753g 29m/s 235m/s 26.6G 937m 11.6s 10s
OK AeroTech H182 722g 29m/s 267m/s 26.1G 968m 11.5s 10s
OK Cesaroni H170 747g 33m/s 249m/s 31.4G 968m 11.6s 10s
OK Cesaroni H160 787g 30m/s 247m/s 23.1G 973m 11.8s 10s
OK Cesaroni H135 766g 27m/s 237m/s 21.0G 976m 11.9s 10s
OK AeroTech H180 767g 34m/s 260m/s 33.2G 987m 11.7s 10s
OK AeroTech H250 771g 40m/s 274m/s 42.1G 995m 11.6s 11s
OK AeroTech H195 712g 37m/s 288m/s 35.5G 1,022m 11.6s 10s
OK Cesaroni H295 857g 39m/s 286m/s 42.5G 1,029m 11.8s 11s
OK KBA H225 831g 29m/s 273m/s 32.4G 1,031m 12.0s 11s
OK AeroTech H135 727g 26m/s 241m/s 20.7G 1,042m 12.2s 10s
OK Cesaroni H180 829g 34m/s 268m/s 32.3G 1,073m 12.2s 11s
OK Cesaroni H194 799g 34m/s 277m/s 35.1G 1,075m 12.0s 11s
OK Cesaroni H53 801g 18m/s 186m/s 10.9G 1,089m 13.5s 9s
OK Cesaroni H200 789g 35m/s 281m/s 36.6G 1,091m 12.1s 11s
OK Cesaroni H255 747g 41m/s 315m/s 50.4G 1,116m 11.9s 11s
OK Cesaroni H399 809g 51m/s 332m/s 68.0G 1,119m 12.0s 11s
OK Cesaroni H140 792g 32m/s 263m/s 30.6G 1,136m 12.4s 10s
OK AeroTech H268 873g 37m/s 315m/s 37.8G 1,198m 12.5s 11s
OK Cesaroni H159 858g 28m/s 285m/s 21.4G 1,205m 12.8s 11s
OK Cesaroni H233 843g 37m/s 316m/s 40.2G 1,209m 12.5s 11s
OK Cesaroni H255 833g 42m/s 329m/s 49.7G 1,221m 12.4s 11s
OK Cesaroni H160 834g 36m/s 285m/s 37.8G 1,245m 12.7s 11s
OK AeroTech I200 873g 35m/s 303m/s 34.5G 1,247m 12.7s 11s
OK AeroTech I205 830g 33m/s 331m/s 43.7G 1,293m 12.6s 11s
OK Cesaroni I204 864g 36m/s 320m/s 41.3G 1,298m 12.8s 11s
warningsW,D Estes F26 601g 5:1 thrust/weight ratio (no data)
warningsW,D Estes G80 640g 12:1 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 (11m/s)
failedG AeroTech E23 speed at end of launch guide too slow (14m/s)
failedG AeroTech E16 speed at end of launch guide too slow (12m/s)
failedG AeroTech F27 speed at end of launch guide too slow (14m/s)
failedG Estes F15 speed at end of launch guide too slow (10m/s)
failedG AeroTech F37 speed at end of launch guide too slow (14m/s)
failedG Cesaroni F32 speed at end of launch guide too slow (13m/s)
failedG Cesaroni F29 speed at end of launch guide too slow (12m/s)
failedG Cesaroni F31 speed at end of launch guide too slow (14m/s)
failedG AeroTech F26 speed at end of launch guide too slow (14m/s)
failedG AeroTech F22 speed at end of launch guide too slow (12m/s)
failedG Apogee F10 speed at end of launch guide too slow (11m/s)
failedG AeroTech G25 speed at end of launch guide too slow (14m/s)
failedG AeroTech G8 speed at end of launch guide too slow (5m/s)
failedG AeroTech G11 speed at end of launch guide too slow (11m/s)
failedG AeroTech G12 speed at end of launch guide too slow (11m/s)
failedG Cesaroni G33 speed at end of launch guide too slow (13m/s)

G These simulations were run with a launch guide length of 2m (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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