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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 40 motors that fit and appear to have enough thrust (737 motors didn't fit, 14 motors failed safety checks). 54 motor had thrust curves available and 114 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:   Lil Goblin
Owner: Tim Cubbedge
Body Diameter: 2.64in
Dry Weight: 33.3oz
MMT Diameter: 38.0mm
MMT Length: 8.00in
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 G69 41.8oz 48ft/s 249ft/s 7.4G 968ft 8.0s 6s
OK Loki G70 41.8oz 50ft/s 263ft/s 7.7G 1,069ft 8.4s 7s
OK Loki G80 42.3oz 52ft/s 272ft/s 8.6G 1,087ft 8.3s 7s
OK AeroTech G339 39.7oz 104ft/s 317ft/s 33.3G 1,095ft 7.9s 7s
OK Loki G94 41.8oz 55ft/s 289ft/s 10.4G 1,150ft 8.4s 7s
OK Cesaroni G185 39.9oz 68ft/s 347ft/s 17.6G 1,285ft 8.6s 8s
OK Loki G66 42.1oz 53ft/s 290ft/s 8.9G 1,287ft 9.1s 7s
OK Cesaroni G115 40.2oz 54ft/s 357ft/s 10.8G 1,446ft 9.3s 8s
OK Loki H100 45.1oz 55ft/s 422ft/s 10.6G 2,036ft 10.8s 9s
warningsW AeroTech H283 42.0oz 90ft/s 516ft/s 27.9G 2,123ft 10.4s 10s
OK AeroTech H148 44.2oz 67ft/s 488ft/s 14.8G 2,235ft 11.0s 10s
OK AeroTech H130 41.7oz 82ft/s 484ft/s 21.4G 2,265ft 10.9s 9s
OK AeroTech H669 42.2oz 143ft/s 601ft/s 93.5G 2,342ft 10.6s 10s
OK AeroTech H123 43.0oz 58ft/s 479ft/s 11.5G 2,438ft 11.6s 9s
OK AeroTech H100 42.5oz 52ft/s 488ft/s 9.9G 2,457ft 11.7s 9s
OK Loki H90 45.1oz 60ft/s 464ft/s 10.7G 2,474ft 11.9s 9s
OK Loki H144 45.2oz 79ft/s 516ft/s 18.8G 2,479ft 11.3s 10s
OK Cesaroni H123 43.8oz 52ft/s 531ft/s 11.2G 2,496ft 11.7s 10s
OK AeroTech H219 42.5oz 87ft/s 586ft/s 23.9G 2,498ft 11.1s 10s
OK Loki H125 45.4oz 67ft/s 499ft/s 15.3G 2,507ft 11.6s 10s
OK Cesaroni H143 45.5oz 54ft/s 544ft/s 11.8G 2,525ft 11.7s 10s
OK AeroTech H242 42.6oz 76ft/s 586ft/s 19.1G 2,619ft 11.5s 10s
OK Loki H160 45.1oz 81ft/s 556ft/s 22.0G 2,645ft 11.5s 10s
OK Cesaroni H400 43.3oz 100ft/s 666ft/s 36.3G 2,686ft 11.3s 11s
OK Cesaroni H120 43.7oz 54ft/s 568ft/s 11.2G 2,789ft 12.2s 10s
OK Cesaroni H110 44.8oz 51ft/s 558ft/s 8.9G 2,848ft 12.5s 10s
OK Cesaroni H125 43.6oz 55ft/s 591ft/s 11.3G 2,853ft 12.3s 10s
OK Cesaroni H152 43.8oz 63ft/s 620ft/s 16.4G 2,952ft 12.2s 10s
OK Cesaroni H225 40.1oz 78ft/s 710ft/s 22.1G 2,953ft 11.8s 11s
OK AeroTech H178 44.7oz 62ft/s 651ft/s 16.3G 2,963ft 12.2s 10s
OK Cesaroni H100 44.8oz 52ft/s 573ft/s 8.5G 3,036ft 12.9s 10s
OK AeroTech H550 44.4oz 125ft/s 804ft/s 52.5G 3,141ft 11.8s 11s
OK AeroTech H999 45.0oz 169ft/s 833ft/s 127.9G 3,191ft 11.8s 12s
OK AeroTech I218 46.4oz 77ft/s 695ft/s 21.3G 3,209ft 12.4s 11s
OK AeroTech H170 44.9oz 69ft/s 683ft/s 15.3G 3,264ft 12.6s 10s
OK AeroTech I180 46.9oz 91ft/s 650ft/s 26.9G 3,269ft 12.5s 11s
OK AeroTech I161 46.2oz 69ft/s 671ft/s 16.0G 3,365ft 12.8s 11s
OK AeroTech I245 46.2oz 93ft/s 747ft/s 31.4G 3,459ft 12.5s 11s
OK AeroTech I140 45.9oz 61ft/s 660ft/s 13.2G 3,479ft 13.1s 11s
OK AeroTech I357 45.4oz 97ft/s 786ft/s 29.2G 3,479ft 12.5s 11s

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 (45ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (34ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (41ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (47ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (42ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (32ft/s)

G These simulations were run with a launch guide length of 5ft (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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