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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 81 motors that fit and appear to have enough thrust (695 motors didn't fit, 26 motors failed safety checks). 107 motor had thrust curves available and 231 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:   3 inch MC SDCR fg Twitch 38mm
Owner: Kenneth B Weaver
Body Diameter: 3.00in
Dry Weight: 57.0oz
MMT Diameter: 38.0mm
MMT Length: 14.00in
CD: 0.65

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 G339 63.4oz 89ft/s 194ft/s 20.4G 531ft 5.8s 5s
OK Loki G94 65.5oz 48ft/s 174ft/s 6.3G 547ft 6.2s 5s
OK Cesaroni G185 63.6oz 60ft/s 210ft/s 10.7G 635ft 6.4s 6s
warningsW AeroTech H283 65.7oz 80ft/s 325ft/s 17.4G 1,259ft 8.6s 8s
OK AeroTech H148 67.9oz 58ft/s 310ft/s 9.3G 1,318ft 9.1s 8s
OK AeroTech H130 65.4oz 71ft/s 306ft/s 13.3G 1,349ft 9.1s 7s
OK AeroTech H123 66.7oz 50ft/s 304ft/s 7.0G 1,449ft 9.8s 7s
OK AeroTech H669 65.9oz 125ft/s 380ft/s 59.4G 1,461ft 9.0s 9s
OK Loki H90 68.8oz 49ft/s 297ft/s 6.7G 1,465ft 9.9s 7s
OK Loki H144 68.9oz 69ft/s 335ft/s 12.0G 1,529ft 9.6s 8s
OK Loki H125 69.1oz 60ft/s 324ft/s 9.7G 1,530ft 9.8s 8s
OK Cesaroni H143 69.2oz 48ft/s 347ft/s 7.5G 1,543ft 9.9s 8s
OK AeroTech H219 66.2oz 72ft/s 372ft/s 15.0G 1,569ft 9.5s 8s
OK AeroTech H242 66.3oz 66ft/s 374ft/s 11.9G 1,648ft 9.9s 8s
OK Loki H160 68.8oz 74ft/s 364ft/s 14.1G 1,675ft 9.9s 8s
OK Cesaroni H120 67.4oz 48ft/s 364ft/s 6.9G 1,741ft 10.5s 8s
OK Cesaroni H400 67.0oz 89ft/s 424ft/s 23.0G 1,743ft 9.8s 9s
OK Cesaroni H152 67.5oz 55ft/s 400ft/s 10.3G 1,910ft 10.7s 9s
OK AeroTech H178 68.4oz 53ft/s 421ft/s 10.4G 1,947ft 10.7s 9s
OK Cesaroni H225 63.8oz 68ft/s 446ft/s 13.5G 1,963ft 10.5s 9s
OK AeroTech I218 70.1oz 70ft/s 460ft/s 13.7G 2,184ft 11.1s 10s
OK AeroTech H550 68.4oz 110ft/s 513ft/s 33.3G 2,194ft 10.7s 10s
OK AeroTech H550 68.1oz 111ft/s 519ft/s 33.6G 2,202ft 10.7s 10s
OK AeroTech H170 68.6oz 60ft/s 449ft/s 9.7G 2,212ft 11.3s 9s
warningsW Cesaroni H565 69.8oz 104ft/s 520ft/s 32.5G 2,220ft 10.8s 10s
OK AeroTech I180 70.6oz 82ft/s 438ft/s 17.5G 2,237ft 11.2s 9s
OK AeroTech H999 68.7oz 146ft/s 538ft/s 83.3G 2,243ft 10.7s 10s
OK AeroTech I161 69.9oz 61ft/s 448ft/s 10.3G 2,299ft 11.5s 9s
OK Cesaroni I180 70.9oz 56ft/s 476ft/s 9.8G 2,335ft 11.6s 10s
OK AeroTech I140 69.6oz 53ft/s 442ft/s 8.3G 2,368ft 11.9s 9s
OK AeroTech I225 74.1oz 62ft/s 491ft/s 12.6G 2,431ft 11.7s 10s
OK AeroTech I245 69.9oz 85ft/s 502ft/s 20.4G 2,444ft 11.4s 10s
OK AeroTech I357 69.1oz 84ft/s 521ft/s 18.8G 2,466ft 11.4s 10s
OK Cesaroni I212 73.8oz 60ft/s 507ft/s 11.5G 2,480ft 11.8s 10s
OK Cesaroni I566 70.6oz 102ft/s 595ft/s 30.9G 2,593ft 11.4s 11s
OK AeroTech I154 74.4oz 49ft/s 449ft/s 7.2G 2,595ft 12.7s 9s
OK Cesaroni I195 71.7oz 60ft/s 538ft/s 10.9G 2,764ft 12.4s 10s
OK Cesaroni I345 70.9oz 79ft/s 600ft/s 18.8G 2,799ft 12.0s 11s
OK AeroTech I285 74.4oz 77ft/s 576ft/s 17.3G 2,827ft 12.2s 11s
OK Cesaroni I170 70.8oz 59ft/s 550ft/s 10.5G 2,854ft 12.6s 10s
OK Cesaroni I800 73.1oz 123ft/s 659ft/s 43.9G 2,860ft 11.8s 11s
OK Cesaroni I175 72.4oz 58ft/s 540ft/s 8.6G 2,864ft 12.7s 10s
OK Cesaroni I236 71.1oz 69ft/s 579ft/s 14.7G 2,913ft 12.5s 11s
OK AeroTech I1299 71.9oz 165ft/s 688ft/s 76.2G 2,925ft 11.8s 11s
OK AeroTech I305 77.5oz 79ft/s 590ft/s 18.2G 2,948ft 12.3s 11s
OK AeroTech I211 73.0oz 72ft/s 563ft/s 14.8G 2,984ft 12.6s 10s
OK Cesaroni I223 74.4oz 62ft/s 585ft/s 11.4G 2,987ft 12.7s 11s
OK AeroTech I195 77.2oz 73ft/s 556ft/s 15.9G 2,993ft 12.6s 10s
OK AeroTech I300 72.6oz 85ft/s 609ft/s 22.1G 3,014ft 12.4s 11s
OK Loki I316 76.0oz 89ft/s 628ft/s 22.9G 3,192ft 12.6s 11s
OK Cesaroni I287 78.3oz 69ft/s 650ft/s 14.9G 3,272ft 13.0s 11s
warningsW Loki I110 77.8oz 53ft/s 510ft/s 11.2G 3,282ft 13.8s 10s
OK Loki I210 76.0oz 79ft/s 600ft/s 19.9G 3,337ft 13.1s 11s
OK Loki I405 76.2oz 109ft/s 681ft/s 37.0G 3,339ft 12.7s 12s
OK Cesaroni I285 74.8oz 74ft/s 679ft/s 16.0G 3,472ft 13.2s 11s
OK Loki I377 76.8oz 101ft/s 692ft/s 29.9G 3,507ft 13.0s 12s
OK AeroTech I59 74.2oz 48ft/s 345ft/s 7.2G 3,510ft 15.8s 7s
OK Cesaroni I255 75.2oz 70ft/s 674ft/s 14.2G 3,523ft 13.4s 11s
OK Loki I430 76.0oz 89ft/s 738ft/s 24.2G 3,525ft 13.1s 12s
OK AeroTech I327 79.2oz 80ft/s 709ft/s 18.7G 3,569ft 13.3s 12s
OK AeroTech I366 76.6oz 90ft/s 723ft/s 22.0G 3,586ft 13.2s 12s
OK AeroTech I364 80.9oz 78ft/s 704ft/s 17.8G 3,588ft 13.3s 12s
OK AMW I297 77.8oz 77ft/s 703ft/s 16.3G 3,593ft 13.3s 11s
OK Cesaroni I470 74.5oz 95ft/s 776ft/s 25.9G 3,629ft 13.1s 12s
OK Cesaroni I303 74.6oz 77ft/s 717ft/s 18.9G 3,658ft 13.4s 12s
OK AeroTech I280 78.7oz 72ft/s 714ft/s 14.4G 3,701ft 13.6s 12s
OK Cesaroni I242 76.4oz 67ft/s 694ft/s 12.4G 3,720ft 13.8s 11s
OK AeroTech I435 75.3oz 114ft/s 786ft/s 35.2G 3,786ft 13.2s 12s
OK Cesaroni I350 84.6oz 78ft/s 744ft/s 16.1G 3,827ft 13.7s 12s
OK AeroTech I284 76.6oz 88ft/s 753ft/s 22.0G 3,877ft 13.5s 12s
OK AeroTech I500 77.3oz 98ft/s 847ft/s 25.8G 4,041ft 13.6s 12s
OK AeroTech I600 78.2oz 115ft/s 871ft/s 36.8G 4,094ft 13.5s 12s
OK AeroTech J420 79.9oz 92ft/s 836ft/s 24.2G 4,162ft 13.9s 12s
OK AeroTech I350 78.7oz 87ft/s 847ft/s 21.6G 4,162ft 13.9s 12s
OK AeroTech J350 80.5oz 111ft/s 835ft/s 35.8G 4,167ft 13.7s 12s
OK AeroTech J340 77.4oz 92ft/s 828ft/s 27.0G 4,194ft 13.8s 12s
OK Cesaroni J285 78.0oz 75ft/s 794ft/s 16.0G 4,249ft 14.2s 12s
OK Cesaroni J357 78.2oz 87ft/s 844ft/s 22.7G 4,255ft 14.0s 12s
OK AeroTech J425 79.3oz 82ft/s 897ft/s 19.5G 4,344ft 14.1s 12s
OK AeroTech J500 80.1oz 106ft/s 928ft/s 34.6G 4,507ft 14.0s 13s
OK AeroTech J270 79.6oz 74ft/s 819ft/s 15.2G 4,511ft 14.6s 12s

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 AeroTech G67 speed at end of launch guide too slow (39ft/s)
failedG Loki G69 speed at end of launch guide too slow (40ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (36ft/s)
failedG Loki G70 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (36ft/s)
failedG Loki G80 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (35ft/s)
failedG Loki G66 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (37ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (28ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (35ft/s)
failedG Loki H100 speed at end of launch guide too slow (47ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (45ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (45ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (36ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (30ft/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.)

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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