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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 53 motors that fit and appear to have enough thrust (703 motors didn't fit, 35 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:   Tea-Bird 4.0 (29mm Motor Adapter)
Owner: K Sonesen
Body Diameter: 4.00in
Dry Weight: 35.0oz
MMT Diameter: 29.0mm
MMT Length: 10.50in
CD: 1.00

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 38.7oz 64ft/s 149ft/s 12.1G 271ft 4.1s 4s
OK AeroTech F52 39.3oz 48ft/s 155ft/s 6.2G 379ft 5.0s 4s
warningsW Estes F50 37.9oz 48ft/s 169ft/s 6.3G 421ft 5.2s 4s
OK Cesaroni G88 40.4oz 52ft/s 198ft/s 9.4G 450ft 5.2s 4s
OK AeroTech G104 39.8oz 61ft/s 201ft/s 10.0G 464ft 5.2s 4s
OK AeroTech G74 38.1oz 51ft/s 205ft/s 7.4G 476ft 5.4s 4s
OK AeroTech G53 40.1oz 49ft/s 179ft/s 6.7G 503ft 5.7s 4s
OK Cesaroni G80 40.1oz 49ft/s 217ft/s 7.8G 520ft 5.6s 4s
OK AeroTech G77 39.3oz 49ft/s 232ft/s 7.6G 574ft 5.8s 5s
OK AeroTech G79 40.5oz 51ft/s 231ft/s 7.6G 597ft 6.0s 5s
OK Cesaroni G83 40.1oz 54ft/s 234ft/s 8.0G 600ft 5.9s 5s
OK Cesaroni G250 40.0oz 89ft/s 292ft/s 24.3G 611ft 5.6s 5s
OK Cesaroni G57 40.1oz 49ft/s 207ft/s 6.9G 612ft 6.2s 4s
OK Cesaroni G126 40.1oz 67ft/s 275ft/s 13.2G 651ft 5.9s 5s
OK AeroTech G76 40.2oz 67ft/s 227ft/s 12.5G 655ft 6.0s 4s
OK AeroTech G64 40.3oz 56ft/s 222ft/s 8.7G 676ft 6.3s 4s
OK AeroTech G75 39.6oz 52ft/s 244ft/s 8.1G 685ft 6.3s 4s
OK Cesaroni G131 42.1oz 63ft/s 287ft/s 11.6G 688ft 6.1s 5s
OK AeroTech G78 39.4oz 53ft/s 260ft/s 8.1G 696ft 6.3s 5s
OK AeroTech G125 39.4oz 65ft/s 300ft/s 12.1G 707ft 6.0s 5s
OK AeroTech G80 39.5oz 56ft/s 268ft/s 8.5G 737ft 6.4s 5s
OK Cesaroni G106 41.6oz 54ft/s 299ft/s 10.3G 762ft 6.4s 5s
OK KBA G135 43.0oz 58ft/s 320ft/s 11.4G 782ft 6.4s 5s
OK AeroTech H165 42.1oz 71ft/s 357ft/s 14.9G 866ft 6.5s 5s
OK Cesaroni H410 41.4oz 119ft/s 429ft/s 43.0G 871ft 6.2s 6s
OK Cesaroni G125 41.9oz 66ft/s 337ft/s 12.9G 871ft 6.6s 5s
OK Cesaroni G118 41.6oz 61ft/s 334ft/s 12.5G 875ft 6.7s 5s
OK Cesaroni H175 43.7oz 72ft/s 371ft/s 16.4G 879ft 6.5s 6s
OK Cesaroni H133 41.7oz 69ft/s 344ft/s 15.5G 891ft 6.6s 5s
OK Cesaroni H163 41.6oz 74ft/s 372ft/s 17.8G 900ft 6.6s 5s
OK AeroTech G138 40.2oz 62ft/s 384ft/s 13.1G 909ft 6.6s 6s
OK AeroTech H238 41.9oz 83ft/s 389ft/s 18.6G 919ft 6.5s 6s
OK AeroTech H128 42.3oz 71ft/s 361ft/s 14.2G 922ft 6.7s 5s
OK Cesaroni G54 41.8oz 57ft/s 243ft/s 9.4G 922ft 7.3s 4s
OK Cesaroni H90 40.7oz 61ft/s 315ft/s 12.7G 924ft 6.9s 5s
OK Cesaroni H87 42.2oz 54ft/s 310ft/s 9.9G 936ft 7.1s 5s
OK Cesaroni H123 43.0oz 60ft/s 358ft/s 10.6G 945ft 6.9s 5s
OK AeroTech H115 42.2oz 58ft/s 349ft/s 9.3G 966ft 7.0s 5s
OK Cesaroni H54 42.4oz 51ft/s 248ft/s 7.6G 967ft 7.6s 4s
OK Cesaroni H118 43.2oz 65ft/s 353ft/s 13.1G 1,001ft 7.0s 5s
OK AeroTech H97 44.8oz 53ft/s 333ft/s 7.6G 1,006ft 7.3s 5s
OK AeroTech H220 43.8oz 89ft/s 443ft/s 24.2G 1,043ft 6.8s 6s
OK AeroTech H210 43.7oz 82ft/s 446ft/s 19.0G 1,059ft 6.9s 6s
OK Cesaroni H151 43.4oz 76ft/s 404ft/s 15.9G 1,074ft 7.0s 6s
OK AeroTech H182 42.3oz 73ft/s 452ft/s 14.6G 1,106ft 7.0s 6s
OK Cesaroni H170 43.2oz 80ft/s 434ft/s 18.8G 1,107ft 7.0s 6s
OK Cesaroni H135 43.9oz 68ft/s 401ft/s 12.6G 1,127ft 7.3s 6s
OK AeroTech H250 44.0oz 101ft/s 485ft/s 25.2G 1,132ft 6.9s 6s
OK AeroTech H180 43.9oz 81ft/s 453ft/s 19.5G 1,133ft 7.0s 6s
OK AeroTech H195 41.9oz 89ft/s 484ft/s 20.8G 1,173ft 7.0s 6s
OK AeroTech H135 42.5oz 63ft/s 397ft/s 11.9G 1,203ft 7.5s 5s
OK Cesaroni H255 43.2oz 96ft/s 545ft/s 30.3G 1,275ft 7.1s 6s
warningsW,D Estes G80 39.4oz 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 (19ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (30ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (24ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (32ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (30ft/s)
failedG Estes F15 speed at end of launch guide too slow (17ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (34ft/s)
failedG AeroTech F62 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (33ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (29ft/s)
failedG AeroTech F42 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni F59 speed at end of launch guide too slow (45ft/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (3:1)
failedG AeroTech F26 speed at end of launch guide too slow (29ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (25ft/s)
failedG Apogee F10 speed at end of launch guide too slow (20ft/s)
failedG AeroTech F50 speed at end of launch guide too slow (47ft/s)
failedG AeroTech F25 speed at end of launch guide too slow (40ft/s)
failedG AeroTech F40 speed at end of launch guide too slow (43ft/s)
failedG AeroTech G54 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (36ft/s)
failedG Estes G40 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G68 speed at end of launch guide too slow (46ft/s)
failedG AeroTech G79 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G40 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (31ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (45ft/s)
failedG KBA G82 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (36ft/s)

G These simulations were run with a launch guide length of 6ft (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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