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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 67 motors that fit and appear to have enough thrust (733 motors didn't fit, 5 motors failed safety checks). 72 motor had thrust curves available and 153 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:   MC 3 inch Sport-X
Owner: Kenneth B Weaver
Body Diameter: 3.00in
Dry Weight: 28.0oz
MMT Diameter: 38.0mm
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 Loki G69 36.5oz 61ft/s 276ft/s 8.7G 972ft 7.6s 6s
OK AeroTech G67 35.1oz 59ft/s 291ft/s 8.3G 1,001ft 7.8s 6s
OK AeroTech G61 34.8oz 55ft/s 276ft/s 7.3G 1,002ft 7.8s 6s
OK AeroTech G339 34.4oz 134ft/s 362ft/s 38.5G 1,032ft 7.3s 7s
OK Loki G70 36.5oz 64ft/s 289ft/s 9.0G 1,054ft 8.0s 6s
OK Loki G80 37.0oz 67ft/s 300ft/s 9.9G 1,063ft 7.8s 6s
OK Loki G94 36.5oz 71ft/s 320ft/s 11.9G 1,105ft 7.9s 6s
OK Cesaroni G185 34.6oz 87ft/s 393ft/s 20.1G 1,180ft 7.8s 7s
OK Cesaroni G79 36.0oz 53ft/s 341ft/s 8.0G 1,184ft 8.4s 7s
OK Cesaroni G69 34.9oz 56ft/s 321ft/s 7.9G 1,188ft 8.4s 6s
OK Loki G66 36.8oz 68ft/s 314ft/s 10.3G 1,224ft 8.5s 6s
OK AeroTech G69 35.1oz 55ft/s 346ft/s 7.3G 1,267ft 8.6s 7s
OK Cesaroni G60 35.3oz 58ft/s 339ft/s 7.7G 1,297ft 8.7s 7s
OK Cesaroni G115 34.9oz 71ft/s 395ft/s 12.6G 1,316ft 8.4s 7s
OK Cesaroni G78 34.9oz 57ft/s 364ft/s 12.4G 1,339ft 8.7s 7s
OK AeroTech H73 38.9oz 52ft/s 384ft/s 6.8G 1,663ft 9.8s 7s
warningsW AeroTech H283 36.7oz 117ft/s 566ft/s 31.7G 1,736ft 8.8s 8s
OK Loki H100 39.8oz 70ft/s 446ft/s 11.6G 1,748ft 9.4s 7s
OK AeroTech H669 36.9oz 180ft/s 675ft/s 107.1G 1,847ft 8.8s 8s
OK AeroTech H130 36.4oz 102ft/s 503ft/s 24.7G 1,855ft 9.2s 8s
OK AeroTech H148 38.9oz 83ft/s 513ft/s 16.9G 1,856ft 9.5s 8s
OK AeroTech H219 37.2oz 108ft/s 624ft/s 27.5G 1,972ft 9.2s 8s
OK AeroTech H123 37.7oz 72ft/s 490ft/s 13.2G 2,013ft 9.9s 7s
OK Loki H144 39.9oz 97ft/s 536ft/s 21.5G 2,019ft 9.6s 8s
OK AeroTech H100 37.2oz 67ft/s 495ft/s 11.2G 2,026ft 10.0s 8s
OK Cesaroni H123 38.5oz 67ft/s 556ft/s 12.6G 2,041ft 9.9s 8s
OK Cesaroni H143 40.2oz 69ft/s 568ft/s 12.9G 2,053ft 9.9s 8s
OK Loki H125 40.1oz 87ft/s 513ft/s 17.5G 2,059ft 9.9s 8s
OK Loki H90 39.8oz 72ft/s 469ft/s 12.3G 2,070ft 10.2s 8s
OK Cesaroni H400 38.0oz 122ft/s 731ft/s 40.7G 2,077ft 9.3s 9s
OK AeroTech H242 37.3oz 96ft/s 617ft/s 21.8G 2,078ft 9.6s 8s
OK Loki H160 39.8oz 108ft/s 577ft/s 25.1G 2,118ft 9.7s 8s
OK Cesaroni H120 38.4oz 70ft/s 577ft/s 12.8G 2,239ft 10.2s 8s
OK Cesaroni H225 34.8oz 106ft/s 745ft/s 25.7G 2,242ft 9.6s 8s
OK AeroTech H112 41.4oz 60ft/s 490ft/s 8.6G 2,266ft 10.8s 8s
OK Cesaroni H125 38.3oz 71ft/s 605ft/s 12.6G 2,274ft 10.3s 8s
OK Cesaroni H110 39.5oz 65ft/s 564ft/s 9.8G 2,302ft 10.6s 8s
OK AeroTech H178 39.4oz 80ft/s 674ft/s 17.4G 2,307ft 10.1s 8s
OK Cesaroni H152 38.5oz 83ft/s 634ft/s 18.8G 2,320ft 10.2s 8s
OK AeroTech H550 39.1oz 164ft/s 872ft/s 59.4G 2,324ft 9.5s 9s
OK AeroTech H999 39.7oz 213ft/s 921ft/s 145.2G 2,353ft 9.5s 9s
OK AeroTech H550 39.4oz 163ft/s 857ft/s 58.5G 2,354ft 9.6s 9s
warningsW Cesaroni H565 40.8oz 153ft/s 871ft/s 54.3G 2,375ft 9.7s 9s
OK Cesaroni H100 39.5oz 66ft/s 566ft/s 9.8G 2,441ft 10.9s 8s
OK AeroTech I218 41.1oz 101ft/s 710ft/s 24.1G 2,464ft 10.2s 9s
OK AeroTech H170 39.6oz 89ft/s 684ft/s 17.1G 2,517ft 10.3s 8s
OK AeroTech I180 41.6oz 113ft/s 650ft/s 30.4G 2,526ft 10.3s 8s
OK AeroTech I161 40.9oz 87ft/s 665ft/s 18.1G 2,596ft 10.5s 8s
OK AeroTech I245 40.9oz 117ft/s 749ft/s 35.2G 2,601ft 10.2s 9s
OK AeroTech I357 40.1oz 121ft/s 804ft/s 33.1G 2,603ft 10.1s 9s
OK Cesaroni I180 41.9oz 77ft/s 728ft/s 16.2G 2,610ft 10.6s 9s
OK Cesaroni I566 41.6oz 137ft/s 976ft/s 52.3G 2,618ft 9.9s 9s
OK AeroTech I225 45.1oz 86ft/s 733ft/s 20.2G 2,644ft 10.5s 9s
OK Cesaroni I212 44.8oz 84ft/s 761ft/s 18.1G 2,694ft 10.7s 9s
OK AeroTech I140 40.6oz 78ft/s 638ft/s 14.8G 2,695ft 10.8s 8s
OK AeroTech I1299 42.9oz 227ft/s 1,135ft/s 127.7G 2,769ft 10.0s 10s
OK Cesaroni I345 41.9oz 118ft/s 922ft/s 32.5G 2,828ft 10.4s 9s
OK AeroTech H45 40.9oz 54ft/s 450ft/s 6.5G 2,849ft 12.6s 6s
OK AeroTech I285 45.4oz 106ft/s 847ft/s 29.0G 2,898ft 10.7s 9s
OK Cesaroni I195 42.7oz 83ft/s 777ft/s 18.9G 2,924ft 11.0s 9s
OK AeroTech I154 45.4oz 70ft/s 625ft/s 12.3G 2,959ft 11.7s 8s
OK Cesaroni I236 42.1oz 99ft/s 846ft/s 25.6G 2,969ft 10.8s 9s
OK Cesaroni I170 41.8oz 85ft/s 798ft/s 18.4G 2,994ft 11.0s 9s
OK AeroTech I300 43.6oz 125ft/s 887ft/s 37.5G 2,996ft 10.6s 9s
OK Cesaroni I175 43.4oz 83ft/s 771ft/s 14.7G 3,026ft 11.2s 9s
OK AeroTech I211 44.0oz 101ft/s 792ft/s 25.2G 3,039ft 10.9s 9s
OK AeroTech I59 45.2oz 71ft/s 508ft/s 12.1G 4,136ft 15.0s 6s

W Motor total weight unknown, lift-off Weight not accurate.

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 Cesaroni G46 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (43ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (44ft/s)

G These simulations were run with a launch guide length of 7ft (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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