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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 36 motors that fit and appear to have enough thrust (771 motors didn't fit, 4 motors failed safety checks). 40 motor had thrust curves available and 72 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:   Estes Big Daddy
Owner: Jim Lane
Body Diameter: 3.00in
Dry Weight: 5.7oz
MMT Diameter: 24.0mm
MMT Length: 6.00in
CD: 0.43

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 Estes C11 7.0oz 58ft/s 117ft/s 10.2G 201ft 3.7s 3s
OK Estes D12 7.8oz 61ft/s 171ft/s 12.8G 435ft 5.3s 4s
OK Estes D11 7.3oz 62ft/s 181ft/s 11.8G 478ft 5.5s 4s
OK AeroTech D15 7.4oz 71ft/s 221ft/s 13.5G 519ft 5.3s 4s
OK Cesaroni E75 7.6oz 120ft/s 350ft/s 43.4G 614ft 5.2s 5s
OK Cesaroni E22 7.7oz 60ft/s 283ft/s 13.1G 629ft 5.7s 5s
OK Cesaroni E31 7.6oz 75ft/s 320ft/s 18.2G 670ft 5.7s 5s
OK Estes E12 7.8oz 67ft/s 232ft/s 14.2G 738ft 6.6s 4s
OK Estes E9 7.8oz 48ft/s 223ft/s 7.8G 772ft 7.2s 4s
OK Estes E30 7.4oz 89ft/s 387ft/s 22.9G 821ft 5.9s 5s
OK AeroTech E11 7.9oz 52ft/s 262ft/s 7.5G 861ft 6.8s 4s
OK AeroTech E20 7.5oz 76ft/s 341ft/s 15.7G 871ft 6.3s 5s
OK AeroTech E12 7.8oz 52ft/s 262ft/s 7.4G 906ft 7.0s 4s
OK AeroTech E30 7.4oz 88ft/s 419ft/s 22.5G 927ft 6.1s 5s
OK AeroTech E28 7.7oz 95ft/s 410ft/s 22.6G 929ft 6.2s 5s
OK AeroTech F44 7.4oz 100ft/s 505ft/s 29.5G 934ft 6.0s 5s
OK AeroTech E18 7.8oz 69ft/s 341ft/s 13.2G 961ft 6.6s 4s
OK AeroTech F62 8.8oz 96ft/s 505ft/s 25.8G 987ft 6.3s 6s
OK AeroTech E15 7.4oz 68ft/s 318ft/s 13.6G 989ft 6.8s 4s
OK AeroTech F63 8.6oz 101ft/s 525ft/s 28.7G 1,029ft 6.3s 6s
OK AeroTech F30 8.2oz 74ft/s 440ft/s 15.2G 1,050ft 6.6s 5s
OK Cesaroni F51 8.3oz 94ft/s 502ft/s 27.7G 1,060ft 6.4s 5s
OK AeroTech F12 8.2oz 58ft/s 327ft/s 9.3G 1,066ft 7.2s 4s
OK Cesaroni F70 8.3oz 118ft/s 566ft/s 40.3G 1,075ft 6.3s 6s
OK AeroTech F39 7.9oz 96ft/s 470ft/s 26.1G 1,080ft 6.5s 5s
OK AeroTech F51 8.6oz 102ft/s 525ft/s 28.9G 1,089ft 6.5s 5s
OK AeroTech F24 8.0oz 79ft/s 390ft/s 17.6G 1,111ft 6.9s 5s
OK Cesaroni F240 9.0oz 194ft/s 803ft/s 109.7G 1,168ft 6.3s 6s
warningsW Apogee E6 7.4oz 54ft/s 177ft/s 8.8G 1,171ft 9.5s 4s
OK AeroTech F35 8.7oz 90ft/s 491ft/s 23.0G 1,194ft 6.8s 5s
OK Cesaroni F50 9.1oz 96ft/s 528ft/s 26.2G 1,197ft 6.8s 5s
OK AeroTech F32 8.0oz 94ft/s 477ft/s 25.6G 1,205ft 6.9s 5s
OK Cesaroni F79 9.5oz 110ft/s 637ft/s 34.8G 1,251ft 6.7s 6s
OK Cesaroni F85 9.1oz 121ft/s 690ft/s 38.7G 1,300ft 6.7s 6s
OK Cesaroni F51 9.1oz 105ft/s 568ft/s 32.1G 1,415ft 7.1s 6s
OK Cesaroni F30 9.3oz 86ft/s 465ft/s 19.7G 1,489ft 7.6s 5s

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 D7 speed at end of launch guide too slow (41ft/s)
failedG AeroTech D9 speed at end of launch guide too slow (47ft/s)
failedG AeroTech E7 speed at end of launch guide too slow (41ft/s)
failedG AeroTech E6 speed at end of launch guide too slow (42ft/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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