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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 68 motors that fit and appear to have enough thrust (732 motors didn't fit, 11 motors failed safety checks). 77 motor had thrust curves available and 151 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:   Hijacker
Owner: Jim Lane
Body Diameter: 3.00in
Dry Weight: 18.0oz
MMT Diameter: 29.0mm
MMT Length: 8.00in
CD: 0.60

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 21.7oz 52ft/s 134ft/s 5.4G 349ft 5.0s 3s
OK Cesaroni F36 21.7oz 54ft/s 192ft/s 12.2G 486ft 5.6s 5s
OK AeroTech F37 21.9oz 54ft/s 203ft/s 6.6G 599ft 6.3s 5s
OK AeroTech F27 20.8oz 50ft/s 188ft/s 5.2G 610ft 6.5s 4s
OK Cesaroni F36 21.6oz 53ft/s 220ft/s 6.1G 638ft 6.4s 5s
OK AeroTech F23 20.9oz 54ft/s 198ft/s 7.4G 669ft 6.7s 4s
OK AeroTech F62 21.8oz 68ft/s 242ft/s 9.5G 674ft 6.3s 5s
OK Cesaroni F31 21.6oz 50ft/s 223ft/s 8.3G 703ft 6.8s 5s
OK Cesaroni F120 21.7oz 101ft/s 278ft/s 22.5G 706ft 6.2s 6s
OK Cesaroni F59 21.5oz 71ft/s 262ft/s 10.8G 732ft 6.5s 6s
OK AeroTech F42 20.7oz 72ft/s 244ft/s 11.0G 735ft 6.6s 5s
OK AeroTech F20 20.8oz 56ft/s 211ft/s 7.3G 752ft 7.0s 4s
OK AeroTech F26 21.6oz 50ft/s 221ft/s 5.4G 804ft 7.3s 5s
OK AeroTech F67 20.8oz 81ft/s 298ft/s 13.8G 822ft 6.7s 6s
OK AeroTech F50 21.0oz 74ft/s 304ft/s 11.4G 920ft 7.1s 6s
OK AeroTech F52 22.3oz 78ft/s 298ft/s 11.7G 948ft 7.3s 6s
OK AeroTech F25 21.2oz 65ft/s 253ft/s 8.8G 956ft 7.6s 5s
OK AeroTech F40 22.5oz 69ft/s 287ft/s 9.9G 1,019ft 7.6s 6s
OK Estes F50 21.0oz 77ft/s 330ft/s 12.3G 1,035ft 7.4s 6s
OK AeroTech G54 22.8oz 74ft/s 321ft/s 11.7G 1,044ft 7.5s 6s
OK Cesaroni G88 23.4oz 79ft/s 366ft/s 17.0G 1,066ft 7.5s 6s
OK AeroTech G104 22.8oz 95ft/s 371ft/s 18.2G 1,091ft 7.4s 7s
OK AeroTech G74 21.1oz 79ft/s 392ft/s 14.2G 1,134ft 7.6s 6s
OK AeroTech G38 22.4oz 59ft/s 298ft/s 7.5G 1,150ft 8.2s 6s
OK AeroTech G53 23.1oz 80ft/s 339ft/s 12.4G 1,181ft 8.0s 6s
OK Cesaroni G80 23.1oz 76ft/s 402ft/s 14.4G 1,205ft 7.9s 7s
OK AeroTech G77 23.8oz 72ft/s 412ft/s 12.2G 1,283ft 8.2s 7s
OK AeroTech G77 22.3oz 77ft/s 437ft/s 14.2G 1,305ft 8.0s 7s
OK Estes G40 22.3oz 71ft/s 351ft/s 10.8G 1,307ft 8.3s 6s
OK AeroTech G40 22.3oz 70ft/s 351ft/s 10.8G 1,307ft 8.3s 6s
OK AeroTech G72 22.6oz 74ft/s 443ft/s 14.4G 1,340ft 8.1s 7s
OK AeroTech G79 23.5oz 81ft/s 425ft/s 13.9G 1,344ft 8.2s 7s
OK Cesaroni G250 23.0oz 137ft/s 524ft/s 43.7G 1,346ft 7.8s 7s
OK Cesaroni G83 23.1oz 82ft/s 432ft/s 14.6G 1,352ft 8.2s 7s
OK AeroTech G79 22.4oz 68ft/s 419ft/s 11.7G 1,369ft 8.3s 6s
OK Cesaroni G68 23.5oz 73ft/s 410ft/s 13.1G 1,370ft 8.4s 7s
OK Cesaroni G57 23.1oz 76ft/s 389ft/s 12.7G 1,393ft 8.5s 7s
OK Cesaroni G126 23.1oz 103ft/s 499ft/s 23.7G 1,431ft 8.1s 7s
OK AeroTech G75 22.7oz 86ft/s 473ft/s 15.4G 1,442ft 8.3s 7s
OK AeroTech G76 23.2oz 103ft/s 416ft/s 22.4G 1,444ft 8.3s 6s
OK Cesaroni G131 25.1oz 94ft/s 510ft/s 20.2G 1,485ft 8.3s 7s
OK AeroTech G64 23.3oz 89ft/s 410ft/s 15.7G 1,492ft 8.5s 6s
OK AeroTech G78 22.4oz 82ft/s 482ft/s 15.1G 1,522ft 8.5s 7s
OK AeroTech G125 22.4oz 100ft/s 550ft/s 22.3G 1,524ft 8.2s 7s
OK AeroTech G25 22.3oz 51ft/s 316ft/s 5.9G 1,577ft 9.8s 5s
OK AeroTech G80 22.5oz 86ft/s 495ft/s 15.6G 1,593ft 8.5s 7s
OK Cesaroni G106 24.6oz 84ft/s 537ft/s 18.2G 1,634ft 8.7s 7s
OK KBA G135 26.0oz 90ft/s 562ft/s 20.0G 1,664ft 8.7s 8s
OK KBA G82 26.1oz 70ft/s 492ft/s 11.8G 1,690ft 9.1s 7s
OK AeroTech G75 26.2oz 68ft/s 484ft/s 9.7G 1,784ft 9.4s 7s
OK Cesaroni H410 24.4oz 180ft/s 751ft/s 75.3G 1,793ft 8.4s 8s
OK AeroTech H165 25.1oz 108ft/s 630ft/s 26.1G 1,796ft 8.7s 8s
OK Cesaroni G125 24.9oz 99ft/s 599ft/s 22.4G 1,815ft 8.9s 8s
OK Cesaroni G118 24.6oz 91ft/s 595ft/s 21.8G 1,828ft 9.0s 8s
OK Cesaroni G33 24.9oz 48ft/s 361ft/s 7.3G 1,836ft 10.6s 6s
OK Cesaroni H133 24.7oz 101ft/s 611ft/s 26.9G 1,850ft 8.9s 8s
OK Cesaroni H163 24.6oz 115ft/s 659ft/s 30.8G 1,860ft 8.8s 8s
OK AeroTech G138 23.2oz 99ft/s 693ft/s 23.7G 1,875ft 8.8s 8s
OK AeroTech H238 24.9oz 125ft/s 683ft/s 32.5G 1,885ft 8.8s 8s
OK AeroTech H128 25.3oz 109ft/s 637ft/s 24.7G 1,895ft 8.9s 8s
OK Cesaroni H90 23.7oz 93ft/s 570ft/s 22.5G 1,917ft 9.1s 7s
OK Cesaroni G54 24.8oz 91ft/s 444ft/s 16.5G 1,943ft 9.6s 7s
OK Cesaroni H87 25.2oz 83ft/s 557ft/s 17.3G 1,945ft 9.4s 7s
OK AeroTech H115 25.2oz 91ft/s 623ft/s 16.4G 1,973ft 9.2s 7s
OK Cesaroni H54 25.4oz 80ft/s 453ft/s 13.3G 2,028ft 9.9s 6s
OK AeroTech H182 25.3oz 110ft/s 798ft/s 25.4G 2,198ft 9.2s 8s
OK AeroTech H195 24.9oz 132ft/s 853ft/s 35.7G 2,299ft 9.2s 8s
warningsD Estes G80 22.5oz 12:1 thrust/weight ratio (no data)

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 (38ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (43ft/s)
failedG Estes F15 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (47ft/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 (43ft/s)
failedG Apogee F10 speed at end of launch guide too slow (40ft/s)
failedG AeroTech G8 speed at end of launch guide too slow (17ft/s)
failedG AeroTech G11 speed at end of launch guide too slow (39ft/s)
failedG AeroTech G12 speed at end of launch guide too slow (40ft/s)

G These simulations were run with a launch guide length of 8ft (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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