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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 84 motors that fit and appear to have enough thrust (701 motors didn't fit, 17 motors failed safety checks). 99 motor had thrust curves available and 195 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:   Great Big Daddy
Owner: Wayne Comfort
Body Diameter: 3.00in
Dry Weight: 456g
MMT Diameter: 29.0mm
MMT Length: 12.00in
CD: 0.45

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 560g 50ft/s 216ft/s 13.5G 593ft 6.1s 5s
OK Cesaroni F36 557g 49ft/s 247ft/s 6.8G 776ft 7.0s 5s
OK AeroTech F23 538g 50ft/s 225ft/s 8.2G 816ft 7.3s 5s
OK AeroTech F62 565g 62ft/s 271ft/s 10.5G 817ft 6.9s 6s
OK Cesaroni F120 562g 91ft/s 308ft/s 25.0G 856ft 6.8s 6s
OK Cesaroni F59 555g 65ft/s 293ft/s 12.0G 888ft 7.1s 6s
OK AeroTech F42 532g 66ft/s 275ft/s 12.2G 894ft 7.2s 6s
OK AeroTech F20 536g 53ft/s 241ft/s 8.2G 915ft 7.6s 5s
OK AeroTech F67 536g 77ft/s 333ft/s 15.3G 997ft 7.3s 6s
OK AeroTech F50 541g 70ft/s 341ft/s 12.7G 1,113ft 7.8s 6s
OK AeroTech F52 578g 70ft/s 334ft/s 13.0G 1,144ft 7.9s 6s
OK AeroTech F25 546g 58ft/s 288ft/s 9.8G 1,157ft 8.2s 6s
OK AeroTech F40 582g 63ft/s 323ft/s 10.9G 1,229ft 8.3s 6s
warningsW Estes F50 540g 69ft/s 372ft/s 13.7G 1,252ft 8.1s 7s
OK AeroTech G54 592g 66ft/s 360ft/s 13.0G 1,259ft 8.2s 7s
OK Cesaroni G88 608g 73ft/s 406ft/s 18.6G 1,285ft 8.2s 7s
OK AeroTech G104 592g 88ft/s 413ft/s 20.0G 1,315ft 8.1s 7s
OK AeroTech G74 543g 73ft/s 440ft/s 15.8G 1,372ft 8.3s 7s
OK AeroTech G38 582g 53ft/s 338ft/s 8.3G 1,385ft 8.9s 6s
OK AeroTech G53 602g 71ft/s 381ft/s 13.7G 1,419ft 8.7s 7s
OK Cesaroni G80 599g 70ft/s 447ft/s 15.8G 1,452ft 8.6s 7s
OK AeroTech G77 621g 64ft/s 458ft/s 13.5G 1,544ft 8.9s 8s
warningsW Estes G40 579g 64ft/s 396ft/s 11.9G 1,571ft 9.0s 7s
OK AeroTech G40 579g 64ft/s 396ft/s 11.9G 1,571ft 9.0s 7s
OK AeroTech G77 578g 72ft/s 489ft/s 15.8G 1,573ft 8.8s 7s
OK AeroTech G79 613g 71ft/s 474ft/s 15.4G 1,616ft 8.9s 7s
OK Cesaroni G250 597g 119ft/s 579ft/s 48.2G 1,625ft 8.5s 8s
OK Cesaroni G83 601g 76ft/s 483ft/s 16.0G 1,627ft 8.9s 8s
OK AeroTech G79 580g 61ft/s 472ft/s 12.9G 1,646ft 9.1s 7s
OK Cesaroni G68 612g 65ft/s 459ft/s 14.3G 1,647ft 9.1s 7s
OK Cesaroni G57 602g 67ft/s 438ft/s 13.9G 1,674ft 9.2s 7s
OK Cesaroni G126 601g 92ft/s 554ft/s 26.0G 1,724ft 8.9s 8s
OK AeroTech G76 603g 92ft/s 467ft/s 24.5G 1,733ft 9.0s 7s
OK Cesaroni G131 656g 84ft/s 564ft/s 22.0G 1,784ft 9.1s 8s
OK AeroTech G64 607g 81ft/s 460ft/s 17.2G 1,789ft 9.3s 7s
OK AeroTech G75 587g 74ft/s 509ft/s 16.5G 1,804ft 9.2s 7s
OK AeroTech G78 581g 73ft/s 540ft/s 16.7G 1,829ft 9.2s 8s
OK AeroTech G125 581g 89ft/s 614ft/s 24.7G 1,835ft 9.0s 8s
OK AeroTech G80 584g 79ft/s 555ft/s 17.2G 1,913ft 9.3s 8s
OK Cesaroni G106 643g 72ft/s 598ft/s 19.8G 1,963ft 9.5s 8s
OK KBA G135 682g 81ft/s 621ft/s 22.0G 2,000ft 9.5s 9s
OK KBA G82 687g 62ft/s 547ft/s 12.9G 2,024ft 9.9s 8s
OK AeroTech G75 689g 61ft/s 542ft/s 10.6G 2,133ft 10.2s 8s
OK AeroTech H165 658g 101ft/s 700ft/s 28.5G 2,159ft 9.6s 9s
OK Cesaroni H410 639g 159ft/s 826ft/s 82.7G 2,163ft 9.3s 9s
OK Cesaroni H175 703g 100ft/s 712ft/s 30.1G 2,177ft 9.6s 9s
OK Cesaroni G125 651g 90ft/s 667ft/s 24.3G 2,180ft 9.7s 8s
OK Cesaroni G118 644g 81ft/s 664ft/s 23.7G 2,195ft 9.8s 8s
OK Cesaroni H133 646g 95ft/s 681ft/s 29.3G 2,222ft 9.7s 8s
OK Cesaroni H163 643g 99ft/s 732ft/s 33.5G 2,236ft 9.7s 9s
OK AeroTech G138 604g 89ft/s 774ft/s 26.6G 2,255ft 9.6s 9s
OK AeroTech H238 652g 115ft/s 757ft/s 35.7G 2,266ft 9.6s 9s
OK AeroTech H128 662g 97ft/s 709ft/s 27.0G 2,274ft 9.8s 8s
OK Cesaroni H90 619g 84ft/s 641ft/s 24.6G 2,297ft 9.9s 8s
OK Cesaroni G54 649g 84ft/s 501ft/s 18.0G 2,319ft 10.4s 7s
OK Cesaroni H87 661g 76ft/s 626ft/s 18.8G 2,328ft 10.2s 8s
OK Cesaroni H123 684g 78ft/s 700ft/s 19.8G 2,333ft 10.0s 9s
OK AeroTech H115 661g 82ft/s 698ft/s 18.0G 2,361ft 10.0s 8s
OK Cesaroni H54 665g 71ft/s 512ft/s 14.5G 2,417ft 10.7s 7s
OK Cesaroni H118 688g 88ft/s 694ft/s 24.2G 2,446ft 10.2s 9s
OK AeroTech H97 734g 72ft/s 654ft/s 14.3G 2,455ft 10.5s 8s
OK Cesaroni H237 750g 114ft/s 842ft/s 35.7G 2,489ft 10.0s 9s
OK AeroTech H220 706g 118ft/s 840ft/s 43.4G 2,524ft 10.0s 9s
OK AeroTech H210 702g 108ft/s 853ft/s 35.9G 2,564ft 10.1s 9s
OK Cesaroni H151 694g 96ft/s 784ft/s 28.9G 2,587ft 10.2s 9s
OK AeroTech H182 663g 95ft/s 893ft/s 27.9G 2,635ft 10.1s 9s
OK Cesaroni H170 688g 108ft/s 836ft/s 34.2G 2,656ft 10.2s 9s
OK Cesaroni H42 698g 50ft/s 498ft/s 9.9G 2,678ft 11.9s 7s
OK Cesaroni H160 728g 98ft/s 827ft/s 25.0G 2,681ft 10.4s 9s
OK AeroTech H180 708g 111ft/s 868ft/s 35.7G 2,697ft 10.2s 9s
OK Cesaroni H135 707g 91ft/s 783ft/s 22.9G 2,699ft 10.5s 9s
OK AeroTech H250 712g 127ft/s 923ft/s 45.6G 2,705ft 10.1s 9s
OK KBA H130 1,165g 78ft/s 577ft/s 18.3G 2,732ft 11.8s 10s
OK AeroTech H195 653g 120ft/s 955ft/s 38.8G 2,754ft 10.0s 9s
OK KBA H225 772g 94ft/s 919ft/s 33.8G 2,821ft 10.6s 9s
OK AeroTech H135 668g 86ft/s 785ft/s 22.4G 2,878ft 10.7s 9s
OK Cesaroni H194 740g 109ft/s 915ft/s 37.9G 2,925ft 10.5s 9s
OK Cesaroni H200 730g 115ft/s 929ft/s 39.6G 2,963ft 10.5s 9s
OK Cesaroni H255 688g 133ft/s 1,048ft/s 54.9G 2,999ft 10.3s 9s
OK Cesaroni H53 742g 59ft/s 590ft/s 11.9G 3,108ft 12.1s 8s
OK Cesaroni H140 733g 106ft/s 855ft/s 33.2G 3,114ft 10.9s 9s
OK AeroTech I205 771g 108ft/s 1,068ft/s 47.2G 3,477ft 10.9s 9s
warningsW,D Estes F26 542g 5:1 thrust/weight ratio (no data)
warningsW,D Estes G80 581g 14:1 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 (36ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (47ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (40ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (45ft/s)
failedG Estes F15 speed at end of launch guide too slow (34ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (47ft/s)
failedG AeroTech F26 speed at end of launch guide too slow (46ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (39ft/s)
failedG Apogee F10 speed at end of launch guide too slow (37ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G8 speed at end of launch guide too slow (16ft/s)
failedG AeroTech G11 speed at end of launch guide too slow (37ft/s)
failedG AeroTech G12 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (43ft/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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