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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 22 motors that fit and appear to have enough thrust (788 motors didn't fit, 1 motors failed safety checks). 23 motor had thrust curves available and 44 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 Unknown
Owner: John Metcalf
Body Diameter: 1.60in
Dry Weight: 9.0oz
MMT Diameter: 24.0mm
MMT Length: 70.0mm
CD: 0.75

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 D12 11.0oz 89ft/s 124ft/s 8.7G 325ft 5.1s 3s
OK AeroTech D7 10.5oz 78ft/s 108ft/s 2.8G 364ft 5.9s 3s
OK Estes D11 10.6oz 86ft/s 132ft/s 7.9G 368ft 5.5s 4s
OK AeroTech D9 10.7oz 117ft/s 143ft/s 5.3G 407ft 5.6s 4s
OK AeroTech D15 10.7oz 143ft/s 165ft/s 9.1G 465ft 5.5s 4s
OK Cesaroni E22 11.0oz 154ft/s 216ft/s 8.9G 637ft 6.4s 5s
OK Cesaroni E75 10.8oz 0ft/s 253ft/s 30.0G 684ft 6.2s 6s
OK AeroTech E7 10.7oz 79ft/s 122ft/s 2.9G 699ft 8.8s 3s
OK Cesaroni E31 10.8oz 180ft/s 244ft/s 12.4G 727ft 6.6s 6s
OK AeroTech E11 11.2oz 123ft/s 229ft/s 5.2G 932ft 8.0s 5s
OK AeroTech E6 10.8oz 80ft/s 137ft/s 3.0G 988ft 10.8s 4s
OK AeroTech E12 11.1oz 115ft/s 232ft/s 4.9G 995ft 8.3s 5s
OK Estes E30 10.7oz 196ft/s 317ft/s 15.6G 1,033ft 7.6s 7s
OK AeroTech E20 10.7oz 171ft/s 292ft/s 10.7G 1,061ft 7.9s 6s
OK AeroTech E18 11.1oz 163ft/s 301ft/s 9.1G 1,188ft 8.4s 6s
OK AeroTech E15 10.7oz 146ft/s 294ft/s 9.2G 1,208ft 8.6s 6s
OK AeroTech E28 11.0oz 205ft/s 352ft/s 15.6G 1,226ft 8.2s 7s
OK AeroTech E30 10.7oz 209ft/s 359ft/s 15.3G 1,241ft 8.1s 7s
OK AeroTech F12 11.4oz 135ft/s 304ft/s 6.4G 1,310ft 9.0s 6s
OK AeroTech F44 10.7oz 253ft/s 410ft/s 21.0G 1,317ft 8.2s 7s
OK AeroTech F24 11.2oz 189ft/s 363ft/s 12.2G 1,484ft 9.0s 7s
OK AeroTech F39 11.1oz 221ft/s 428ft/s 18.2G 1,536ft 8.8s 7s

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
failed5 Estes C11 average thrust fails 5:1 thrust/weight ratio (4:1)

5 The 5:1 thrust-to-weight ratio check is a useful rule of thumb, but it does break down for motors with unusual thrust curves. For example, motors with a high initial thrust and a long tail-off may fail this test but still be safe for use.

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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