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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 128 motors that fit and appear to have enough thrust (683 motors didn't fit). All motors had thrust curves available and 268 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:   Twitch
Owner: John Kovac
Body Diameter: 3.00in
Dry Weight: 35.0oz
MMT Diameter: 38.0mm
MMT Length: 16.00in
CD: 0.60

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 Contrail G300 54.2oz 172ft/s 206ft/s 53.1G 577ft 5.8s 6s
OK Contrail G130 53.2oz 101ft/s 193ft/s 35.2G 594ft 6.1s 5s
OK Loki G69 43.5oz 75ft/s 235ft/s 7.1G 860ft 7.5s 6s
OK AeroTech G61 41.8oz 67ft/s 234ft/s 6.0G 885ft 7.7s 6s
OK AeroTech G67 42.1oz 70ft/s 246ft/s 6.8G 890ft 7.7s 6s
OK Loki G70 43.5oz 76ft/s 248ft/s 7.4G 948ft 7.9s 6s
OK Loki G80 44.0oz 79ft/s 257ft/s 8.2G 964ft 7.8s 6s
OK AeroTech G339 41.4oz 157ft/s 302ft/s 31.9G 964ft 7.4s 7s
OK Contrail G123 53.0oz 98ft/s 267ft/s 23.2G 1,000ft 7.8s 7s
OK Cesaroni G46 41.9oz 56ft/s 237ft/s 6.6G 1,011ft 8.6s 6s
OK Loki G94 43.5oz 87ft/s 274ft/s 9.9G 1,017ft 7.9s 6s
OK Contrail G100 53.0oz 92ft/s 264ft/s 11.4G 1,036ft 8.0s 7s
OK Cesaroni G69 41.9oz 66ft/s 275ft/s 6.4G 1,089ft 8.5s 7s
OK Cesaroni G79 43.0oz 64ft/s 290ft/s 6.8G 1,095ft 8.5s 7s
OK Cesaroni G185 41.6oz 106ft/s 330ft/s 16.8G 1,127ft 8.0s 7s
OK Loki G66 43.8oz 80ft/s 273ft/s 8.5G 1,136ft 8.6s 6s
OK Cesaroni G58 42.5oz 56ft/s 276ft/s 6.5G 1,164ft 9.0s 6s
OK AeroTech G69 42.1oz 67ft/s 297ft/s 6.1G 1,184ft 8.7s 7s
OK Contrail H222 53.3oz 136ft/s 313ft/s 44.7G 1,186ft 8.2s 8s
OK Cesaroni G60 42.3oz 68ft/s 293ft/s 6.3G 1,213ft 8.9s 7s
OK Cesaroni G115 41.9oz 85ft/s 338ft/s 10.3G 1,267ft 8.7s 7s
OK Cesaroni G78 41.9oz 69ft/s 315ft/s 10.2G 1,271ft 8.9s 7s
OK Cesaroni G50 42.7oz 52ft/s 282ft/s 4.9G 1,297ft 9.7s 7s
OK AeroTech H73 45.9oz 63ft/s 344ft/s 5.8G 1,634ft 10.3s 7s
OK Loki H100 46.8oz 82ft/s 398ft/s 10.1G 1,778ft 10.0s 8s
warningsW AeroTech H283 43.7oz 141ft/s 490ft/s 26.7G 1,837ft 9.6s 9s
OK AeroTech H148 45.9oz 103ft/s 459ft/s 14.2G 1,941ft 10.2s 9s
OK AeroTech H130 43.4oz 123ft/s 453ft/s 20.5G 1,961ft 10.0s 8s
OK AeroTech H669 43.9oz 215ft/s 574ft/s 89.8G 2,015ft 9.8s 9s
OK AeroTech H123 44.7oz 89ft/s 447ft/s 11.0G 2,114ft 10.7s 8s
OK AeroTech H100 44.2oz 81ft/s 455ft/s 9.4G 2,128ft 10.8s 8s
OK Loki H144 46.9oz 115ft/s 486ft/s 18.1G 2,149ft 10.5s 9s
OK Loki H90 46.8oz 88ft/s 433ft/s 10.3G 2,152ft 11.0s 8s
OK AeroTech H219 44.2oz 132ft/s 547ft/s 22.9G 2,158ft 10.3s 9s
OK Cesaroni H123 45.5oz 81ft/s 499ft/s 10.6G 2,161ft 10.8s 9s
OK Loki H125 47.1oz 104ft/s 468ft/s 14.7G 2,175ft 10.8s 9s
OK Cesaroni H143 47.2oz 84ft/s 512ft/s 11.2G 2,186ft 10.8s 9s
OK AeroTech H242 44.3oz 116ft/s 552ft/s 18.3G 2,257ft 10.6s 9s
OK Loki H160 46.8oz 124ft/s 524ft/s 21.2G 2,286ft 10.7s 9s
OK Cesaroni H400 45.0oz 155ft/s 633ft/s 34.7G 2,305ft 10.4s 10s
OK AeroTech H112 48.4oz 72ft/s 459ft/s 7.2G 2,380ft 11.7s 8s
OK Cesaroni H120 45.4oz 87ft/s 531ft/s 10.8G 2,409ft 11.3s 9s
OK Cesaroni H125 45.3oz 84ft/s 553ft/s 10.8G 2,460ft 11.3s 9s
OK Cesaroni H110 46.5oz 77ft/s 521ft/s 8.4G 2,464ft 11.6s 9s
OK Cesaroni H225 41.8oz 126ft/s 666ft/s 21.2G 2,526ft 10.8s 10s
OK Cesaroni H152 45.5oz 98ft/s 581ft/s 15.8G 2,541ft 11.3s 9s
OK AeroTech H178 46.4oz 94ft/s 612ft/s 15.4G 2,549ft 11.2s 10s
OK Cesaroni H100 46.5oz 78ft/s 532ft/s 8.2G 2,624ft 12.0s 9s
OK AeroTech H550 46.1oz 193ft/s 764ft/s 50.4G 2,679ft 10.8s 10s
OK AeroTech H550 46.4oz 192ft/s 752ft/s 49.7G 2,695ft 10.9s 10s
OK AeroTech H999 46.7oz 253ft/s 795ft/s 123.2G 2,718ft 10.8s 11s
warningsW Cesaroni H565 47.8oz 188ft/s 762ft/s 46.6G 2,720ft 11.0s 10s
OK AeroTech I218 48.1oz 124ft/s 653ft/s 20.5G 2,755ft 11.4s 10s
OK AeroTech H170 46.6oz 104ft/s 637ft/s 14.6G 2,805ft 11.6s 9s
OK AeroTech I180 48.6oz 138ft/s 608ft/s 25.9G 2,813ft 11.5s 10s
OK AeroTech I161 47.9oz 106ft/s 625ft/s 15.4G 2,893ft 11.8s 10s
OK Cesaroni I180 48.9oz 97ft/s 673ft/s 14.2G 2,920ft 11.9s 10s
OK AeroTech I245 47.9oz 146ft/s 699ft/s 30.1G 2,960ft 11.5s 10s
OK AeroTech I357 47.1oz 143ft/s 738ft/s 28.0G 2,974ft 11.5s 10s
OK AeroTech I225 52.1oz 106ft/s 682ft/s 17.9G 2,977ft 11.8s 10s
OK AeroTech I175 47.3oz 117ft/s 622ft/s 18.1G 2,982ft 12.1s 10s
OK AeroTech H45 47.9oz 64ft/s 431ft/s 5.4G 2,989ft 13.5s 7s
OK AeroTech I140 47.6oz 93ft/s 611ft/s 12.6G 2,992ft 12.1s 10s
OK Cesaroni I212 51.8oz 103ft/s 709ft/s 16.3G 3,037ft 12.0s 10s
OK Cesaroni I566 48.6oz 177ft/s 863ft/s 45.4G 3,047ft 11.4s 11s
OK AeroTech I154 52.4oz 85ft/s 607ft/s 10.6G 3,259ft 12.9s 9s
OK Cesaroni I800 51.1oz 208ft/s 948ft/s 61.5G 3,263ft 11.6s 11s
OK Cesaroni I345 48.9oz 142ft/s 846ft/s 27.7G 3,272ft 11.9s 11s
OK AeroTech I1299 49.9oz 286ft/s 994ft/s 110.9G 3,292ft 11.5s 11s
OK Cesaroni I195 49.7oz 106ft/s 739ft/s 16.2G 3,317ft 12.4s 10s
OK AeroTech I285 52.4oz 133ft/s 792ft/s 25.1G 3,322ft 12.1s 11s
OK AeroTech I305 55.5oz 136ft/s 798ft/s 25.8G 3,392ft 12.1s 11s
OK Cesaroni I170 48.8oz 105ft/s 757ft/s 15.6G 3,402ft 12.5s 10s
OK Cesaroni I236 49.1oz 120ft/s 797ft/s 21.8G 3,411ft 12.3s 10s
OK Cesaroni I175 50.4oz 98ft/s 737ft/s 12.6G 3,425ft 12.6s 10s
OK AeroTech I300 50.6oz 146ft/s 835ft/s 32.1G 3,468ft 12.1s 11s
OK AeroTech I211 51.0oz 123ft/s 760ft/s 21.6G 3,479ft 12.4s 10s
OK Cesaroni I223 52.4oz 106ft/s 799ft/s 16.4G 3,488ft 12.5s 11s
OK AeroTech I195 55.2oz 127ft/s 741ft/s 22.7G 3,500ft 12.5s 10s
OK AeroTech I49 49.0oz 49ft/s 423ft/s 3.6G 3,603ft 15.9s 8s
OK Cesaroni I55 50.4oz 53ft/s 469ft/s 5.1G 3,616ft 15.5s 8s
OK Loki I316 54.0oz 159ft/s 842ft/s 32.6G 3,636ft 12.4s 11s
OK Cesaroni I287 56.3oz 119ft/s 875ft/s 20.7G 3,711ft 12.7s 11s
OK Loki I405 54.2oz 185ft/s 916ft/s 52.5G 3,723ft 12.3s 11s
OK Loki I210 54.0oz 137ft/s 792ft/s 28.5G 3,822ft 12.8s 11s
OK Cesaroni I285 52.8oz 128ft/s 910ft/s 23.1G 3,884ft 12.8s 11s
OK Loki I377 54.8oz 167ft/s 919ft/s 42.3G 3,901ft 12.6s 11s
warningsW Loki I110 55.8oz 88ft/s 668ft/s 16.0G 3,908ft 13.7s 10s
OK Loki I430 54.0oz 156ft/s 1,005ft/s 34.4G 3,912ft 12.6s 11s
OK AeroTech I366 54.6oz 153ft/s 965ft/s 31.4G 3,943ft 12.6s 11s
OK AeroTech I327 57.2oz 136ft/s 946ft/s 26.2G 3,943ft 12.8s 11s
OK Cesaroni I470 52.5oz 170ft/s 1,062ft/s 37.2G 3,951ft 12.5s 11s
OK Cesaroni I255 53.2oz 120ft/s 897ft/s 20.5G 3,952ft 12.9s 11s
OK AeroTech I364 58.9oz 131ft/s 930ft/s 24.6G 3,956ft 12.8s 11s
OK AMW I297 55.8oz 130ft/s 937ft/s 23.1G 3,981ft 12.9s 11s
OK Cesaroni I303 52.6oz 135ft/s 959ft/s 27.3G 4,032ft 12.8s 11s
OK AeroTech I435 53.3oz 192ft/s 1,055ft/s 50.2G 4,075ft 12.5s 11s
OK AeroTech I280 56.7oz 122ft/s 944ft/s 20.4G 4,087ft 13.1s 11s
OK Cesaroni I242 54.4oz 113ft/s 912ft/s 17.9G 4,141ft 13.3s 11s
OK KBA I550 60.1oz 154ft/s 1,065ft/s 37.7G 4,175ft 13.0s 12s
OK AeroTech I284 54.6oz 150ft/s 988ft/s 31.1G 4,196ft 12.9s 11s
OK Cesaroni I350 62.6oz 128ft/s 975ft/s 22.1G 4,208ft 13.3s 12s
OK KBA I301 60.6oz 122ft/s 927ft/s 23.1G 4,259ft 13.5s 12s
OK AeroTech I500 55.3oz 162ft/s 1,136ft/s 36.6G 4,292ft 12.8s 12s
warningsW Cesaroni I540 56.1oz 173ft/s 1,178ft/s 40.0G 4,315ft 12.8s 12s
OK AeroTech I600 56.2oz 194ft/s 1,162ft/s 51.7G 4,319ft 12.8s 12s
OK AeroTech J350 58.5oz 181ft/s 1,089ft/s 49.7G 4,418ft 13.0s 11s
OK KBA J520 60.5oz 156ft/s 1,114ft/s 41.4G 4,422ft 13.3s 12s
OK AeroTech I350 56.7oz 141ft/s 1,112ft/s 30.1G 4,427ft 13.1s 12s
OK AeroTech J420 57.9oz 155ft/s 1,092ft/s 33.9G 4,439ft 13.2s 12s
OK AeroTech J340 55.4oz 160ft/s 1,080ft/s 38.1G 4,440ft 13.0s 11s
OK KBA J740 60.5oz 188ft/s 1,218ft/s 55.2G 4,448ft 13.1s 12s
OK AeroTech I59 52.2oz 85ft/s 470ft/s 10.5G 4,451ft 16.1s 8s
OK Loki J396 61.5oz 133ft/s 1,062ft/s 30.7G 4,453ft 13.4s 12s
OK Cesaroni I125 57.8oz 98ft/s 706ft/s 15.7G 4,463ft 14.5s 10s
OK Cesaroni J335 57.1oz 139ft/s 1,059ft/s 25.0G 4,500ft 13.3s 11s
OK Cesaroni J357 56.2oz 141ft/s 1,102ft/s 32.0G 4,525ft 13.2s 11s
OK Cesaroni J285 56.0oz 127ft/s 1,029ft/s 22.5G 4,580ft 13.5s 11s
OK AeroTech J425 57.3oz 133ft/s 1,182ft/s 27.2G 4,583ft 13.3s 12s
OK Cesaroni J270 58.1oz 113ft/s 1,012ft/s 17.4G 4,612ft 13.7s 11s
OK Cesaroni I216 56.2oz 117ft/s 927ft/s 20.7G 4,631ft 13.8s 11s
OK Cesaroni J316 56.4oz 137ft/s 1,035ft/s 26.9G 4,653ft 13.6s 11s
OK AeroTech J500 58.1oz 189ft/s 1,206ft/s 48.2G 4,691ft 13.2s 12s
OK Cesaroni J290 58.3oz 131ft/s 1,044ft/s 23.3G 4,713ft 13.7s 11s
OK AeroTech J270 57.6oz 125ft/s 1,048ft/s 21.3G 4,807ft 13.7s 11s
OK AeroTech J435 57.0oz 176ft/s 1,250ft/s 42.6G 4,939ft 13.4s 12s
OK Loki J712 61.5oz 188ft/s 1,348ft/s 50.5G 4,967ft 13.5s 12s
OK Cesaroni J94 58.3oz 77ft/s 674ft/s 9.1G 5,180ft 16.3s 9s

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.

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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