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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 (703 motors didn't fit, 20 motors failed safety checks). 86 motor had thrust curves available and 171 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:   BMS 3 inch School Rocket 31 inch Sustainer 29mm MMT
Owner: Kenneth B Weaver
Body Diameter: 3.00in
Dry Weight: 16.0oz
MMT Diameter: 29.0mm
MMT Length: 10.00in
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 AeroTech F62 19.8oz 48ft/s 260ft/s 10.5G 662ft 6.1s 5s
OK Cesaroni F120 19.7oz 71ft/s 303ft/s 24.5G 681ft 5.9s 5s
OK Cesaroni F59 19.5oz 54ft/s 282ft/s 12.0G 711ft 6.2s 5s
OK AeroTech F42 18.7oz 56ft/s 259ft/s 12.2G 716ft 6.3s 5s
OK AeroTech F50 19.0oz 55ft/s 320ft/s 12.8G 865ft 6.6s 5s
OK AeroTech F52 20.3oz 57ft/s 313ft/s 13.0G 895ft 6.8s 5s
OK AeroTech F25 19.2oz 50ft/s 262ft/s 9.8G 916ft 7.1s 4s
warningsW Estes F50 18.9oz 57ft/s 345ft/s 13.5G 959ft 6.9s 5s
OK AeroTech F40 20.5oz 49ft/s 297ft/s 10.9G 964ft 7.2s 5s
OK AeroTech G54 20.8oz 54ft/s 333ft/s 12.8G 975ft 7.0s 6s
OK Cesaroni G88 21.4oz 60ft/s 388ft/s 18.7G 982ft 6.9s 6s
OK AeroTech G104 20.8oz 71ft/s 391ft/s 20.1G 1,000ft 6.8s 6s
OK AeroTech G74 19.1oz 59ft/s 413ft/s 15.5G 1,032ft 7.0s 6s
OK AeroTech G53 21.1oz 59ft/s 349ft/s 13.7G 1,089ft 7.4s 5s
OK Cesaroni G80 21.1oz 54ft/s 421ft/s 15.8G 1,098ft 7.2s 6s
OK AeroTech G77 21.8oz 50ft/s 428ft/s 13.0G 1,165ft 7.5s 6s
OK AeroTech G77 20.3oz 55ft/s 453ft/s 15.0G 1,171ft 7.3s 6s
OK Cesaroni G250 21.0oz 96ft/s 560ft/s 47.0G 1,183ft 7.0s 7s
warningsW Estes G40 20.3oz 54ft/s 356ft/s 11.9G 1,198ft 7.7s 5s
OK AeroTech G40 20.3oz 54ft/s 356ft/s 11.9G 1,198ft 7.7s 5s
OK AeroTech G79 21.5oz 58ft/s 438ft/s 15.1G 1,211ft 7.5s 6s
OK Cesaroni G83 21.1oz 61ft/s 447ft/s 16.1G 1,217ft 7.5s 6s
OK AeroTech G79 20.4oz 50ft/s 428ft/s 12.7G 1,233ft 7.6s 6s
OK Cesaroni G68 21.5oz 51ft/s 418ft/s 14.4G 1,242ft 7.7s 6s
OK Cesaroni G57 21.1oz 55ft/s 393ft/s 14.0G 1,267ft 7.8s 6s
OK Cesaroni G126 21.1oz 78ft/s 520ft/s 26.1G 1,267ft 7.3s 6s
OK AeroTech G76 21.2oz 77ft/s 424ft/s 24.6G 1,295ft 7.5s 6s
OK Cesaroni G131 23.1oz 72ft/s 531ft/s 22.1G 1,315ft 7.5s 6s
OK AeroTech G125 20.4oz 69ft/s 571ft/s 23.8G 1,332ft 7.4s 6s
OK AeroTech G75 20.6oz 60ft/s 457ft/s 16.6G 1,340ft 7.7s 6s
OK AeroTech G64 21.3oz 66ft/s 416ft/s 17.3G 1,343ft 7.8s 5s
OK AeroTech G78 20.4oz 59ft/s 493ft/s 16.5G 1,350ft 7.7s 6s
OK AeroTech G80 20.5oz 64ft/s 502ft/s 17.3G 1,408ft 7.7s 6s
OK Cesaroni G106 22.6oz 58ft/s 551ft/s 19.9G 1,441ft 7.9s 7s
OK KBA G135 24.0oz 65ft/s 580ft/s 20.9G 1,463ft 7.9s 7s
OK KBA G82 24.1oz 52ft/s 498ft/s 12.6G 1,506ft 8.3s 6s
OK Cesaroni H410 22.4oz 124ft/s 792ft/s 80.4G 1,520ft 7.5s 7s
OK AeroTech H165 23.1oz 78ft/s 644ft/s 28.1G 1,555ft 7.8s 7s
OK Cesaroni H175 24.7oz 84ft/s 664ft/s 29.9G 1,570ft 7.9s 7s
OK Cesaroni G125 22.9oz 73ft/s 606ft/s 24.4G 1,581ft 8.0s 7s
OK AeroTech G75 24.2oz 50ft/s 483ft/s 10.4G 1,592ft 8.6s 6s
OK Cesaroni G118 22.6oz 69ft/s 602ft/s 23.8G 1,594ft 8.1s 7s
OK Cesaroni H163 22.6oz 82ft/s 673ft/s 33.6G 1,605ft 7.9s 7s
OK Cesaroni H133 22.7oz 73ft/s 618ft/s 29.4G 1,608ft 8.0s 7s
OK AeroTech G138 21.2oz 69ft/s 707ft/s 24.5G 1,610ft 7.8s 7s
OK AeroTech H238 22.9oz 92ft/s 700ft/s 34.5G 1,618ft 7.8s 7s
OK AeroTech H128 23.3oz 81ft/s 644ft/s 26.5G 1,641ft 8.0s 7s
OK Cesaroni H90 21.7oz 72ft/s 562ft/s 24.7G 1,676ft 8.2s 6s
OK Cesaroni H123 24.0oz 68ft/s 635ft/s 19.9G 1,693ft 8.3s 7s
OK Cesaroni H87 23.2oz 62ft/s 550ft/s 18.9G 1,709ft 8.5s 7s
OK AeroTech H115 23.2oz 66ft/s 620ft/s 17.8G 1,713ft 8.2s 7s
OK Cesaroni G54 22.8oz 67ft/s 437ft/s 18.0G 1,734ft 8.8s 6s
OK Cesaroni H118 24.2oz 72ft/s 618ft/s 24.3G 1,777ft 8.3s 7s
OK AeroTech H220 24.8oz 102ft/s 775ft/s 43.5G 1,793ft 8.1s 7s
OK AeroTech H97 25.8oz 58ft/s 579ft/s 14.0G 1,804ft 8.7s 7s
OK Cesaroni H54 23.4oz 58ft/s 442ft/s 14.6G 1,813ft 9.1s 6s
OK AeroTech H210 24.7oz 88ft/s 778ft/s 34.3G 1,820ft 8.2s 7s
OK Cesaroni H151 24.4oz 80ft/s 700ft/s 29.0G 1,856ft 8.3s 7s
OK AeroTech H182 23.3oz 79ft/s 795ft/s 27.4G 1,871ft 8.2s 7s
OK Cesaroni H170 24.2oz 89ft/s 754ft/s 34.4G 1,895ft 8.3s 7s
OK AeroTech H250 25.0oz 101ft/s 837ft/s 45.4G 1,908ft 8.2s 7s
OK AeroTech H180 24.9oz 89ft/s 782ft/s 35.1G 1,920ft 8.3s 7s
OK AeroTech H195 22.9oz 96ft/s 842ft/s 38.9G 1,944ft 8.1s 7s
OK Cesaroni H135 24.9oz 77ft/s 690ft/s 23.0G 1,946ft 8.6s 7s
OK AeroTech H135 23.5oz 74ft/s 683ft/s 22.2G 2,077ft 8.8s 7s
OK Cesaroni H255 24.2oz 113ft/s 936ft/s 55.0G 2,105ft 8.3s 7s
warningsW,D Estes F26 19.0oz 5:1 thrust/weight ratio (no data)
warningsW,D Estes G80 20.4oz 14:1 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 (30ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (38ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (33ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (41ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (38ft/s)
failedG Estes F15 speed at end of launch guide too slow (28ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (41ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (37ft/s)
failedG AeroTech F26 speed at end of launch guide too slow (37ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (31ft/s)
failedG Apogee F10 speed at end of launch guide too slow (31ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (41ft/s)

G These simulations were run with a launch guide length of 4ft (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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