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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 37 motors that fit and appear to have enough thrust (738 motors didn't fit, 16 motors failed safety checks). 51 motor had thrust curves available and 94 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:   Big Dog
Owner: Charles DeVoid
Body Diameter: 1.97in
Dry Weight: 16.0oz
MMT Diameter: 29.0mm
MMT Length: 6.00in
CD: 0.06

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 F62 19.8oz 55ft/s 291ft/s 10.8G 1,401ft 9.7s 9s
OK Cesaroni F120 19.7oz 82ft/s 319ft/s 25.8G 1,550ft 10.0s 10s
OK Cesaroni F59 19.5oz 58ft/s 315ft/s 12.0G 1,605ft 10.3s 9s
OK AeroTech F20 18.8oz 49ft/s 283ft/s 8.2G 1,625ft 10.7s 8s
OK AeroTech F42 18.7oz 59ft/s 307ft/s 12.2G 1,634ft 10.5s 9s
OK AeroTech F25 19.2oz 56ft/s 352ft/s 9.8G 2,357ft 12.8s 10s
OK AeroTech F52 20.3oz 62ft/s 379ft/s 13.1G 2,359ft 12.5s 11s
OK AeroTech F50 19.0oz 63ft/s 385ft/s 12.8G 2,385ft 12.5s 11s
OK AeroTech F40 20.5oz 56ft/s 385ft/s 11.0G 2,583ft 13.2s 11s
OK AeroTech G54 20.8oz 62ft/s 414ft/s 13.3G 2,764ft 13.5s 12s
warningsW Estes F50 18.9oz 65ft/s 433ft/s 14.2G 2,949ft 13.8s 12s
OK Cesaroni G88 21.4oz 69ft/s 444ft/s 18.7G 2,950ft 13.7s 13s
OK AeroTech G104 20.8oz 80ft/s 457ft/s 20.1G 3,110ft 14.0s 13s
OK AeroTech G38 20.4oz 49ft/s 421ft/s 8.3G 3,123ft 14.7s 12s
OK AeroTech G53 21.1oz 67ft/s 457ft/s 13.7G 3,384ft 14.9s 13s
OK AeroTech G74 19.1oz 64ft/s 496ft/s 16.7G 3,569ft 15.1s 14s
OK Cesaroni G80 21.1oz 62ft/s 500ft/s 15.9G 3,658ft 15.3s 14s
OK AeroTech G77 21.8oz 57ft/s 520ft/s 15.1G 3,979ft 16.0s 15s
warningsW Estes G40 20.3oz 58ft/s 503ft/s 11.9G 4,076ft 16.3s 14s
OK AeroTech G40 20.3oz 58ft/s 503ft/s 11.9G 4,076ft 16.3s 14s
OK AeroTech G79 21.5oz 67ft/s 552ft/s 16.3G 4,422ft 16.7s 15s
OK Cesaroni G68 21.5oz 59ft/s 547ft/s 14.4G 4,433ft 16.9s 15s
OK Cesaroni G83 21.1oz 71ft/s 560ft/s 16.1G 4,503ft 16.8s 16s
OK AeroTech G77 20.3oz 64ft/s 566ft/s 17.4G 4,504ft 16.8s 16s
OK Cesaroni G57 21.1oz 64ft/s 543ft/s 14.0G 4,505ft 17.0s 15s
OK AeroTech G79 20.4oz 57ft/s 571ft/s 14.0G 4,726ft 17.4s 15s
OK Cesaroni G250 21.0oz 108ft/s 614ft/s 50.5G 4,929ft 17.2s 17s
OK AeroTech G76 21.2oz 85ft/s 578ft/s 24.6G 5,009ft 17.6s 16s
OK AeroTech G64 21.3oz 71ft/s 580ft/s 17.3G 5,159ft 18.0s 16s
OK Cesaroni G126 21.1oz 85ft/s 624ft/s 26.1G 5,247ft 17.9s 17s
OK AeroTech G75 20.6oz 70ft/s 630ft/s 16.6G 5,605ft 18.6s 17s
OK AeroTech G78 20.4oz 69ft/s 658ft/s 17.4G 5,925ft 19.0s 17s
OK AeroTech G125 20.4oz 83ft/s 704ft/s 27.9G 6,289ft 19.4s 18s
OK AeroTech G80 20.5oz 74ft/s 691ft/s 17.6G 6,422ft 19.7s 18s
OK AeroTech G138 21.2oz 82ft/s 918ft/s 34.6G 9,365ft 23.2s 22s
warningsW,D Estes F26 19.0oz 5:1 thrust/weight ratio (no data)
warningsW,D Estes G80 20.4oz 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 (33ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (44ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (37ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (47ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (42ft/s)
failedG Estes F15 speed at end of launch guide too slow (32ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (41ft/s)
failedG AeroTech F26 speed at end of launch guide too slow (43ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (35ft/s)
failedG Apogee F10 speed at end of launch guide too slow (34ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (43ft/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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