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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 55 motors that fit and appear to have enough thrust (717 motors didn't fit, 19 motors failed safety checks). 72 motor had thrust curves available and 139 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 Pro Series II Partizon
Owner: Ken Baker
Body Diameter: 2.5mm
Dry Weight: 655g
MMT Diameter: 29.0mm
MMT Length: 203.0mm
CD: 0.65

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 764g 17m/s 62m/s 7.7G 232m 7.3s 6s
OK Cesaroni F120 761g 26m/s 70m/s 18.6G 263m 7.6s 7s
OK AeroTech F42 731g 18m/s 65m/s 8.6G 265m 7.9s 6s
OK Cesaroni F59 754g 18m/s 68m/s 8.6G 267m 7.8s 7s
OK AeroTech F25 745g 16m/s 73m/s 6.9G 392m 9.8s 7s
OK AeroTech F50 740g 20m/s 82m/s 9.0G 405m 9.6s 8s
OK AeroTech F52 777g 20m/s 82m/s 9.4G 412m 9.7s 8s
OK AeroTech F40 781g 17m/s 83m/s 7.9G 451m 10.4s 8s
OK AeroTech G54 792g 19m/s 91m/s 9.6G 494m 10.7s 9s
warningsW Estes F50 739g 20m/s 93m/s 10.0G 512m 10.8s 9s
OK Cesaroni G88 807g 21m/s 98m/s 13.7G 540m 11.0s 10s
OK AeroTech G38 781g 15m/s 90m/s 5.9G 547m 11.6s 9s
OK AeroTech G104 791g 25m/s 101m/s 14.7G 573m 11.2s 10s
OK AeroTech G53 801g 21m/s 101m/s 10.0G 625m 12.0s 10s
OK AeroTech G74 742g 21m/s 107m/s 11.8G 639m 12.0s 11s
OK Cesaroni G80 798g 19m/s 111m/s 11.6G 685m 12.4s 11s
warningsW Estes G40 778g 18m/s 109m/s 8.6G 755m 13.3s 11s
OK AeroTech G40 778g 18m/s 109m/s 8.6G 755m 13.3s 11s
OK AeroTech G77 820g 18m/s 116m/s 11.1G 760m 13.1s 12s
OK Cesaroni G68 811g 19m/s 121m/s 10.6G 856m 14.0s 12s
OK AeroTech G77 778g 20m/s 124m/s 12.5G 858m 13.9s 13s
OK AeroTech G79 812g 21m/s 123m/s 11.9G 860m 13.9s 12s
OK Cesaroni G57 801g 20m/s 120m/s 10.2G 866m 14.1s 12s
OK Cesaroni G83 800g 21m/s 124m/s 11.8G 875m 14.0s 13s
OK AeroTech G79 779g 18m/s 125m/s 10.0G 906m 14.4s 13s
OK Cesaroni G250 796g 35m/s 138m/s 37.1G 991m 14.5s 14s
OK AeroTech G76 802g 27m/s 130m/s 18.2G 1,003m 14.9s 13s
OK AeroTech G64 806g 23m/s 130m/s 12.7G 1,035m 15.2s 13s
OK Cesaroni G126 800g 27m/s 140m/s 19.3G 1,061m 15.1s 14s
OK Cesaroni G131 855g 25m/s 144m/s 19.1G 1,120m 15.6s 15s
OK AeroTech G75 786g 21m/s 140m/s 12.1G 1,133m 15.9s 14s
OK AeroTech G78 780g 21m/s 146m/s 12.6G 1,217m 16.4s 15s
OK AeroTech G125 780g 25m/s 156m/s 20.2G 1,316m 16.9s 16s
OK KBA G82 886g 18m/s 151m/s 11.6G 1,320m 17.3s 15s
OK AeroTech G80 783g 22m/s 153m/s 12.8G 1,347m 17.2s 16s
OK Cesaroni G106 842g 21m/s 157m/s 15.1G 1,362m 17.3s 16s
OK KBA G135 881g 23m/s 161m/s 18.3G 1,394m 17.4s 16s
OK AeroTech G75 888g 18m/s 158m/s 8.9G 1,459m 18.3s 16s
OK Cesaroni G54 848g 23m/s 165m/s 13.6G 1,726m 19.8s 17s
OK Cesaroni G125 850g 26m/s 183m/s 18.4G 1,827m 19.9s 19s
OK Cesaroni H54 864g 20m/s 171m/s 10.9G 1,834m 20.5s 17s
OK Cesaroni G118 843g 24m/s 183m/s 17.9G 1,835m 20.0s 19s
OK AeroTech H165 857g 29m/s 187m/s 22.6G 1,871m 20.0s 19s
OK Cesaroni H133 845g 27m/s 188m/s 22.2G 1,931m 20.4s 19s
OK Cesaroni H87 860g 22m/s 187m/s 14.2G 1,963m 20.9s 19s
OK Cesaroni H90 818g 25m/s 191m/s 18.3G 2,048m 21.2s 19s
OK Cesaroni H163 842g 29m/s 196m/s 25.3G 2,063m 21.0s 20s
OK AeroTech H128 861g 28m/s 197m/s 21.0G 2,105m 21.2s 20s
OK Cesaroni H410 838g 45m/s 204m/s 65.0G 2,149m 21.1s 21s
OK AeroTech H238 851g 33m/s 203m/s 28.7G 2,200m 21.6s 21s
OK AeroTech G138 803g 25m/s 206m/s 25.6G 2,258m 22.0s 21s
OK AeroTech H115 860g 23m/s 204m/s 14.8G 2,274m 22.3s 21s
OK AeroTech H182 862g 28m/s 256m/s 25.8G 3,475m 27.2s 26s
OK AeroTech H195 852g 33m/s 284m/s 29.5G 4,243m 29.9s 29s
warningsW,D Estes G80 780g 10:1 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 (9m/s)
failedG AeroTech E23 speed at end of launch guide too slow (13m/s)
failedG AeroTech E16 speed at end of launch guide too slow (11m/s)
failedG AeroTech F23 speed at end of launch guide too slow (14m/s)
failedG Cesaroni F36 speed at end of launch guide too slow (14m/s)
failedG AeroTech F27 speed at end of launch guide too slow (13m/s)
failedG Estes F15 speed at end of launch guide too slow (8m/s)
failedG AeroTech F37 speed at end of launch guide too slow (13m/s)
failedG Cesaroni F36 speed at end of launch guide too slow (14m/s)
failedG AeroTech F20 speed at end of launch guide too slow (14m/s)
failedG Cesaroni F32 speed at end of launch guide too slow (12m/s)
failedG Cesaroni F29 speed at end of launch guide too slow (11m/s)
failedG Cesaroni F31 speed at end of launch guide too slow (13m/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (4:1)
failedG AeroTech F26 speed at end of launch guide too slow (12m/s)
failedG AeroTech F22 speed at end of launch guide too slow (11m/s)
failedG Apogee F10 speed at end of launch guide too slow (10m/s)
failedG AeroTech G25 speed at end of launch guide too slow (13m/s)
failedG Cesaroni G33 speed at end of launch guide too slow (12m/s)

G These simulations were run with a launch guide length of 2m (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.)

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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