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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 65 motors that fit and appear to have enough thrust (717 motors didn't fit, 9 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 Argent Pro Series 2
Owner: David Cain
Body Diameter: 6.4cm
Dry Weight: 528g
MMT Diameter: 29.0mm
MMT Length: 20.3cm
CD: 0.53
Web Site:

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 E23 632g 15m/s 40m/s 5.2G 110m 5.2s 4s
OK Cesaroni F36 632g 16m/s 58m/s 11.8G 162m 6.0s 5s
OK AeroTech F37 637g 16m/s 62m/s 6.4G 202m 6.8s 5s
OK AeroTech F27 608g 15m/s 58m/s 5.0G 205m 6.9s 4s
OK Cesaroni F36 629g 16m/s 67m/s 6.0G 218m 6.9s 5s
OK AeroTech F23 610g 16m/s 62m/s 7.1G 228m 7.2s 5s
OK AeroTech F62 637g 20m/s 74m/s 9.2G 234m 6.9s 6s
OK Cesaroni F31 630g 15m/s 69m/s 8.0G 243m 7.4s 6s
OK Cesaroni F120 634g 30m/s 84m/s 22.2G 250m 6.9s 6s
OK Cesaroni F59 627g 22m/s 80m/s 10.5G 258m 7.2s 6s
OK AeroTech F42 604g 21m/s 75m/s 10.6G 259m 7.3s 6s
OK AeroTech F20 608g 17m/s 66m/s 7.1G 261m 7.6s 5s
OK AeroTech F26 629g 15m/s 70m/s 5.2G 280m 8.0s 5s
OK AeroTech F50 613g 23m/s 94m/s 11.1G 337m 8.0s 7s
OK AeroTech F25 618g 19m/s 81m/s 8.5G 344m 8.4s 6s
OK AeroTech F52 650g 23m/s 93m/s 11.4G 345m 8.2s 7s
OK AeroTech F40 654g 20m/s 91m/s 9.6G 372m 8.6s 7s
OK AeroTech G54 665g 22m/s 101m/s 11.5G 386m 8.6s 7s
warningsW Estes F50 612g 23m/s 104m/s 12.1G 387m 8.5s 7s
OK Cesaroni G88 680g 25m/s 112m/s 16.5G 399m 8.5s 8s
OK AeroTech G104 664g 28m/s 115m/s 17.7G 411m 8.5s 8s
OK AeroTech G38 654g 18m/s 96m/s 7.2G 424m 9.3s 7s
OK AeroTech G74 615g 25m/s 122m/s 14.0G 433m 8.8s 8s
OK AeroTech G53 674g 24m/s 108m/s 12.1G 443m 9.1s 7s
OK Cesaroni G80 671g 24m/s 125m/s 14.0G 459m 9.1s 8s
OK AeroTech G77 693g 21m/s 129m/s 12.3G 491m 9.4s 8s
warningsW Estes G40 651g 21m/s 114m/s 10.4G 496m 9.6s 7s
OK AeroTech G40 651g 21m/s 114m/s 10.4G 496m 9.6s 7s
OK AeroTech G77 651g 23m/s 137m/s 14.4G 508m 9.4s 8s
OK AeroTech G79 685g 24m/s 134m/s 13.8G 520m 9.6s 8s
OK Cesaroni G83 673g 26m/s 136m/s 14.2G 524m 9.5s 8s
OK Cesaroni G68 684g 22m/s 131m/s 12.7G 527m 9.8s 8s
OK AeroTech G79 652g 21m/s 134m/s 11.7G 531m 9.7s 8s
OK Cesaroni G57 674g 23m/s 126m/s 12.3G 534m 9.8s 8s
OK Cesaroni G250 669g 41m/s 159m/s 43.4G 535m 9.2s 9s
OK AeroTech G76 675g 31m/s 134m/s 21.8G 562m 9.7s 8s
OK Cesaroni G126 673g 30m/s 156m/s 23.1G 566m 9.6s 9s
OK AeroTech G64 679g 26m/s 133m/s 15.3G 579m 10.0s 8s
OK Cesaroni G131 728g 30m/s 159m/s 19.7G 587m 9.8s 9s
OK AeroTech G75 659g 25m/s 146m/s 14.6G 591m 10.0s 8s
OK AeroTech G25 649g 15m/s 105m/s 5.7G 594m 11.1s 6s
OK AeroTech G78 653g 24m/s 154m/s 14.9G 603m 10.0s 8s
OK AeroTech G125 653g 30m/s 173m/s 22.3G 613m 9.8s 9s
OK AeroTech G80 656g 26m/s 159m/s 15.2G 634m 10.1s 8s
OK Cesaroni G106 715g 25m/s 170m/s 17.7G 651m 10.3s 9s
OK KBA G135 754g 27m/s 176m/s 20.3G 664m 10.3s 9s
OK KBA G82 759g 21m/s 158m/s 12.2G 664m 10.7s 9s
OK AeroTech G75 761g 20m/s 158m/s 9.7G 702m 11.0s 9s
OK AeroTech H165 730g 33m/s 200m/s 25.8G 733m 10.5s 9s
OK Cesaroni G125 722g 30m/s 192m/s 21.8G 736m 10.6s 9s
OK Cesaroni G118 716g 29m/s 191m/s 21.3G 740m 10.7s 9s
OK Cesaroni H410 710g 54m/s 231m/s 75.0G 748m 10.3s 10s
OK Cesaroni H133 718g 32m/s 196m/s 26.3G 753m 10.7s 9s
OK Cesaroni H163 715g 34m/s 209m/s 30.0G 763m 10.7s 10s
OK Cesaroni G54 721g 27m/s 149m/s 16.1G 766m 11.3s 8s
OK AeroTech G138 676g 29m/s 221m/s 25.1G 774m 10.6s 10s
OK AeroTech H128 734g 33m/s 204m/s 24.4G 774m 10.8s 9s
OK Cesaroni H90 691g 28m/s 188m/s 21.9G 776m 10.9s 9s
OK AeroTech H238 724g 37m/s 216m/s 32.6G 777m 10.6s 10s
OK Cesaroni H87 733g 25m/s 184m/s 16.9G 782m 11.2s 9s
OK Cesaroni H54 737g 24m/s 153m/s 13.0G 798m 11.6s 8s
OK AeroTech H115 733g 27m/s 204m/s 16.3G 804m 11.0s 9s
OK AeroTech H182 735g 33m/s 260m/s 25.5G 920m 11.2s 10s
OK AeroTech H195 725g 39m/s 281m/s 34.8G 971m 11.3s 10s
warningsW,D Estes G80 653g 12:1 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 (11m/s)
failedG AeroTech E16 speed at end of launch guide too slow (13m/s)
failedG Estes F15 speed at end of launch guide too slow (11m/s)
failedG Cesaroni F32 speed at end of launch guide too slow (14m/s)
failedG Cesaroni F29 speed at end of launch guide too slow (14m/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (4:1)
failedG AeroTech F22 speed at end of launch guide too slow (13m/s)
failedG Apogee F10 speed at end of launch guide too slow (12m/s)
failedG Cesaroni G33 speed at end of launch guide too slow (14m/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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