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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 36 motors that fit and appear to have enough thrust (710 motors didn't fit, 56 motors failed safety checks). 90 motor had thrust curves available and 182 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:   Aerotech Sumo
Owner: todd k. Malan
Body Diameter: 4.00in
Dry Weight: 1,090g
MMT Diameter: 29.0mm
MMT Length: 240.0mm
CD: 0.50

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 Cesaroni F120 1,196g 56ft/s 138ft/s 11.2G 278ft 4.3s 4s
OK AeroTech G104 1,226g 53ft/s 194ft/s 9.1G 532ft 5.8s 5s
OK Cesaroni G250 1,231g 76ft/s 276ft/s 22.9G 777ft 6.6s 6s
OK AeroTech G76 1,237g 55ft/s 230ft/s 11.4G 805ft 7.1s 5s
OK Cesaroni G126 1,235g 55ft/s 268ft/s 12.1G 822ft 7.0s 6s
OK AeroTech G64 1,241g 49ft/s 226ft/s 7.9G 826ft 7.3s 5s
OK Cesaroni G131 1,290g 52ft/s 280ft/s 10.7G 876ft 7.2s 6s
OK AeroTech G125 1,215g 53ft/s 295ft/s 11.6G 919ft 7.3s 6s
OK KBA G135 1,316g 51ft/s 316ft/s 11.1G 1,026ft 7.7s 7s
OK Cesaroni G125 1,284g 55ft/s 343ft/s 11.8G 1,178ft 8.2s 7s
OK Cesaroni G118 1,278g 53ft/s 340ft/s 11.5G 1,179ft 8.2s 7s
OK AeroTech H165 1,292g 61ft/s 359ft/s 14.0G 1,185ft 8.1s 7s
OK Cesaroni G54 1,283g 50ft/s 262ft/s 8.6G 1,187ft 8.7s 6s
OK Cesaroni H175 1,337g 62ft/s 369ft/s 16.2G 1,207ft 8.1s 7s
OK Cesaroni H133 1,280g 56ft/s 351ft/s 14.3G 1,213ft 8.2s 7s
OK Cesaroni H410 1,272g 101ft/s 413ft/s 40.8G 1,243ft 7.9s 7s
OK Cesaroni H90 1,253g 53ft/s 333ft/s 11.6G 1,244ft 8.5s 7s
OK Cesaroni H163 1,277g 64ft/s 374ft/s 16.3G 1,245ft 8.2s 7s
OK AeroTech G138 1,238g 53ft/s 386ft/s 13.4G 1,266ft 8.3s 7s
OK AeroTech H128 1,296g 60ft/s 369ft/s 13.3G 1,272ft 8.3s 7s
OK AeroTech H238 1,286g 71ft/s 391ft/s 17.8G 1,290ft 8.2s 7s
OK Cesaroni H123 1,318g 49ft/s 366ft/s 9.8G 1,295ft 8.5s 7s
OK AeroTech H115 1,295g 50ft/s 366ft/s 8.7G 1,327ft 8.6s 7s
OK Cesaroni H118 1,322g 57ft/s 373ft/s 12.1G 1,383ft 8.7s 7s
OK AeroTech H220 1,340g 76ft/s 450ft/s 22.4G 1,508ft 8.7s 8s
OK Cesaroni H151 1,328g 61ft/s 425ft/s 14.6G 1,532ft 8.9s 8s
OK AeroTech H210 1,336g 71ft/s 456ft/s 18.6G 1,536ft 8.8s 8s
OK Cesaroni H170 1,322g 69ft/s 451ft/s 17.3G 1,602ft 9.0s 8s
OK Cesaroni H135 1,341g 56ft/s 429ft/s 11.6G 1,605ft 9.2s 8s
OK AeroTech H182 1,297g 63ft/s 473ft/s 13.9G 1,612ft 9.0s 8s
OK AeroTech H180 1,342g 70ft/s 473ft/s 18.4G 1,655ft 9.1s 8s
OK AeroTech H250 1,346g 86ft/s 501ft/s 23.5G 1,675ft 9.0s 8s
OK AeroTech H135 1,302g 55ft/s 434ft/s 11.1G 1,720ft 9.5s 7s
OK AeroTech H195 1,287g 76ft/s 514ft/s 19.1G 1,748ft 9.2s 8s
OK Cesaroni H255 1,322g 82ft/s 576ft/s 28.0G 1,938ft 9.4s 8s
warningsW,D Estes G80 1,215g 7:1 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 (16ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (26ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (20ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (27ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (25ft/s)
failedG Estes F15 speed at end of launch guide too slow (13ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (28ft/s)
failedG AeroTech F62 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (28ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (28ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (24ft/s)
failedG AeroTech F42 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni F59 speed at end of launch guide too slow (37ft/s)
failedG AeroTech F67 speed at end of launch guide too slow (44ft/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (2:1)
failedG AeroTech F26 speed at end of launch guide too slow (25ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (21ft/s)
failedG AeroTech F52 speed at end of launch guide too slow (41ft/s)
failedG Apogee F10 speed at end of launch guide too slow (17ft/s)
failedG AeroTech F50 speed at end of launch guide too slow (39ft/s)
failedG Estes F50 speed at end of launch guide too slow (41ft/s)
failedG AeroTech F25 speed at end of launch guide too slow (34ft/s)
failedG AeroTech F40 speed at end of launch guide too slow (36ft/s)
failedG AeroTech G54 speed at end of launch guide too slow (41ft/s)
failedG AeroTech G74 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G88 speed at end of launch guide too slow (43ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (30ft/s)
failedG AeroTech G53 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G80 speed at end of launch guide too slow (41ft/s)
failedG Estes G40 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (42ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G83 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G57 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G68 speed at end of launch guide too slow (39ft/s)
failedG AeroTech G79 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G79 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G78 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G40 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (26ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (43ft/s)
failedG AeroTech G80 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (38ft/s)
failed5 AeroTech G8 average thrust fails 5:1 thrust/weight ratio (1:1)
failedG Cesaroni G106 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G11 speed at end of launch guide too slow (18ft/s)
failedG AeroTech G12 speed at end of launch guide too slow (19ft/s)
failedG KBA G82 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni H54 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni H87 speed at end of launch guide too slow (45ft/s)
failedG AeroTech H97 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (31ft/s)

G These simulations were run with a launch guide length of 5ft (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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