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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 151 motors that fit and appear to have enough thrust (623 motors didn't fit, 17 motors failed safety checks). 168 motor had thrust curves available and 346 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:   Madcow Torrent
Owner: Louie Berlin
Body Diameter: 4.00in
Dry Weight: 4.00lb
MMT Diameter: 38.0mm
MMT Length: 36.00in
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 Contrail G130 5.14lb 65ft/s 116ft/s 22.4G 255ft 4.2s 3s
OK Contrail G300 5.20lb 111ft/s 132ft/s 34.2G 258ft 4.0s 4s
OK Contrail G234 5.20lb 104ft/s 147ft/s 22.5G 338ft 4.6s 4s
OK Loki G80 4.56lb 48ft/s 140ft/s 4.5G 385ft 5.3s 4s
OK AeroTech G339 4.40lb 96ft/s 173ft/s 18.2G 400ft 5.0s 5s
OK Loki G94 4.53lb 52ft/s 151ft/s 5.5G 412ft 5.4s 4s
OK Contrail G123 5.13lb 63ft/s 161ft/s 14.6G 449ft 5.5s 4s
OK Loki G66 4.55lb 48ft/s 146ft/s 4.7G 460ft 6.0s 4s
OK Contrail G100 5.13lb 59ft/s 158ft/s 7.0G 464ft 5.6s 4s
OK Cesaroni G185 4.42lb 65ft/s 185ft/s 9.4G 471ft 5.5s 5s
OK Cesaroni G115 4.43lb 52ft/s 186ft/s 5.7G 531ft 6.1s 5s
OK Contrail H300 5.35lb 107ft/s 197ft/s 29.1G 551ft 5.8s 5s
OK Contrail H222 5.15lb 90ft/s 196ft/s 28.6G 559ft 5.8s 5s
OK Contrail H303 5.30lb 116ft/s 211ft/s 32.1G 610ft 6.0s 5s
OK Contrail H211 5.32lb 103ft/s 240ft/s 25.6G 797ft 6.9s 6s
OK Loki H100 4.74lb 52ft/s 229ft/s 5.8G 837ft 7.5s 5s
OK Contrail H246 5.32lb 97ft/s 263ft/s 21.5G 881ft 7.1s 6s
OK Contrail H121 5.35lb 61ft/s 235ft/s 10.2G 885ft 7.6s 6s
warningsW AeroTech H283 4.54lb 86ft/s 286ft/s 15.5G 894ft 7.2s 6s
OK AeroTech H148 4.68lb 65ft/s 267ft/s 8.3G 942ft 7.7s 6s
OK AeroTech H130 4.52lb 78ft/s 261ft/s 11.9G 958ft 7.6s 6s
OK Contrail H141 5.35lb 70ft/s 263ft/s 10.2G 977ft 7.7s 6s
OK AeroTech H669 4.56lb 135ft/s 338ft/s 53.6G 1,019ft 7.4s 7s
OK Contrail H248 5.75lb 94ft/s 283ft/s 26.1G 1,021ft 7.7s 7s
OK AeroTech H123 4.61lb 55ft/s 255ft/s 6.3G 1,028ft 8.2s 6s
OK AeroTech H100 4.58lb 50ft/s 258ft/s 5.3G 1,028ft 8.3s 6s
OK Loki H90 4.74lb 54ft/s 249ft/s 6.0G 1,047ft 8.4s 6s
OK Cesaroni H123 4.65lb 50ft/s 288ft/s 6.1G 1,062ft 8.3s 6s
OK Loki H144 4.74lb 72ft/s 288ft/s 10.8G 1,082ft 8.0s 6s
OK Loki H125 4.75lb 64ft/s 275ft/s 8.7G 1,086ft 8.2s 6s
OK Cesaroni H143 4.77lb 53ft/s 298ft/s 6.5G 1,088ft 8.3s 7s
OK AeroTech H219 4.58lb 81ft/s 323ft/s 13.4G 1,094ft 7.9s 7s
OK AeroTech H242 4.58lb 72ft/s 323ft/s 10.6G 1,148ft 8.2s 7s
OK Loki H160 4.74lb 78ft/s 313ft/s 12.7G 1,175ft 8.2s 7s
OK Cesaroni H400 4.63lb 96ft/s 374ft/s 20.5G 1,200ft 8.0s 7s
OK Cesaroni H120 4.65lb 54ft/s 308ft/s 6.1G 1,217ft 8.8s 7s
OK Contrail H277 5.57lb 103ft/s 326ft/s 29.6G 1,227ft 8.3s 7s
OK Cesaroni H110 4.72lb 48ft/s 302ft/s 4.8G 1,242ft 9.0s 6s
OK Cesaroni H125 4.65lb 53ft/s 322ft/s 6.2G 1,252ft 8.9s 7s
OK Contrail H340 5.80lb 104ft/s 335ft/s 33.8G 1,257ft 8.4s 7s
OK Cesaroni H152 4.66lb 62ft/s 341ft/s 9.3G 1,321ft 8.8s 7s
OK Cesaroni H225 4.43lb 75ft/s 384ft/s 12.1G 1,334ft 8.5s 7s
OK Cesaroni H100 4.72lb 48ft/s 308ft/s 4.6G 1,335ft 9.4s 7s
OK AeroTech H178 4.71lb 59ft/s 361ft/s 9.1G 1,340ft 8.8s 7s
OK Contrail I500 5.76lb 133ft/s 382ft/s 38.7G 1,392ft 8.5s 8s
OK AeroTech H550 4.71lb 121ft/s 453ft/s 29.9G 1,477ft 8.6s 8s
OK AeroTech H550 4.70lb 122ft/s 457ft/s 30.2G 1,478ft 8.6s 8s
OK AeroTech I218 4.82lb 79ft/s 394ft/s 12.3G 1,491ft 9.0s 8s
warningsW Cesaroni H565 4.80lb 120ft/s 461ft/s 28.0G 1,494ft 8.6s 8s
OK AeroTech H999 4.73lb 165ft/s 480ft/s 75.5G 1,501ft 8.5s 8s
OK AeroTech H170 4.73lb 64ft/s 379ft/s 8.6G 1,512ft 9.3s 7s
OK AeroTech I180 4.85lb 89ft/s 370ft/s 15.8G 1,533ft 9.1s 7s
OK Contrail I221 5.57lb 95ft/s 365ft/s 18.4G 1,556ft 9.3s 8s
OK AeroTech I161 4.81lb 66ft/s 376ft/s 9.2G 1,571ft 9.4s 7s
OK Cesaroni I180 4.87lb 60ft/s 405ft/s 8.5G 1,591ft 9.5s 7s
OK AeroTech I140 4.78lb 59ft/s 366ft/s 7.4G 1,618ft 9.7s 7s
OK AeroTech I245 4.80lb 94ft/s 427ft/s 18.3G 1,647ft 9.2s 8s
OK AeroTech I225 5.07lb 68ft/s 419ft/s 11.0G 1,654ft 9.5s 8s
OK AeroTech I357 4.76lb 91ft/s 447ft/s 16.9G 1,657ft 9.2s 8s
OK Cesaroni I212 5.05lb 65ft/s 433ft/s 9.9G 1,682ft 9.6s 8s
OK Cesaroni I566 4.85lb 114ft/s 525ft/s 27.5G 1,719ft 9.1s 8s
OK AeroTech I154 5.08lb 54ft/s 369ft/s 6.4G 1,785ft 10.5s 7s
OK Contrail I747 5.85lb 179ft/s 502ft/s 72.0G 1,804ft 9.4s 9s
OK Cesaroni I345 4.87lb 92ft/s 517ft/s 17.0G 1,858ft 9.6s 8s
OK Cesaroni I195 4.92lb 67ft/s 451ft/s 9.8G 1,859ft 10.0s 8s
OK Cesaroni I800 5.01lb 136ft/s 585ft/s 37.7G 1,877ft 9.3s 9s
OK Contrail I250 5.60lb 91ft/s 439ft/s 22.0G 1,884ft 9.9s 8s
OK AeroTech I285 5.09lb 85ft/s 494ft/s 15.7G 1,890ft 9.8s 8s
OK AeroTech I1299 4.93lb 179ft/s 613ft/s 68.2G 1,906ft 9.2s 9s
OK Cesaroni I170 4.86lb 65ft/s 462ft/s 9.4G 1,914ft 10.2s 8s
OK Cesaroni I175 4.96lb 62ft/s 451ft/s 7.6G 1,928ft 10.3s 8s
OK Cesaroni I236 4.88lb 77ft/s 488ft/s 13.3G 1,941ft 10.0s 8s
OK AeroTech I305 5.28lb 87ft/s 505ft/s 16.4G 1,969ft 9.8s 8s
OK Cesaroni I223 5.09lb 69ft/s 494ft/s 10.2G 1,996ft 10.2s 8s
OK AeroTech I211 5.00lb 79ft/s 471ft/s 13.4G 1,997ft 10.1s 8s
OK AeroTech I300 4.97lb 93ft/s 518ft/s 20.1G 2,000ft 9.9s 8s
OK AeroTech I195 5.26lb 81ft/s 467ft/s 14.4G 2,014ft 10.2s 8s
OK Loki I316 5.19lb 101ft/s 534ft/s 20.7G 2,114ft 10.0s 9s
OK Cesaroni I287 5.33lb 76ft/s 553ft/s 13.0G 2,169ft 10.4s 9s
OK Loki I405 5.20lb 128ft/s 583ft/s 33.8G 2,190ft 10.0s 9s
OK Loki I210 5.19lb 92ft/s 502ft/s 18.2G 2,222ft 10.4s 8s
warningsW Loki I110 5.30lb 57ft/s 417ft/s 10.2G 2,230ft 11.3s 7s
OK Cesaroni I285 5.12lb 84ft/s 570ft/s 14.5G 2,283ft 10.6s 9s
OK Loki I377 5.23lb 115ft/s 587ft/s 27.3G 2,299ft 10.3s 9s
OK Loki I430 5.19lb 99ft/s 635ft/s 22.1G 2,300ft 10.3s 9s
OK Cesaroni I255 5.14lb 79ft/s 563ft/s 12.8G 2,321ft 10.7s 9s
OK AeroTech I366 5.22lb 101ft/s 611ft/s 20.0G 2,343ft 10.4s 9s
OK AeroTech I327 5.38lb 88ft/s 603ft/s 17.0G 2,346ft 10.5s 9s
OK Cesaroni I470 5.09lb 107ft/s 667ft/s 23.6G 2,350ft 10.3s 9s
OK KBA I550 5.57lb 103ft/s 744ft/s 26.5G 2,352ft 10.0s 9s
OK AeroTech I364 5.49lb 85ft/s 596ft/s 15.8G 2,360ft 10.5s 9s
OK AMW I297 5.30lb 83ft/s 594ft/s 14.8G 2,363ft 10.6s 9s
OK Cesaroni I303 5.10lb 84ft/s 603ft/s 17.2G 2,394ft 10.6s 9s
OK KBA I301 5.60lb 81ft/s 634ft/s 15.6G 2,412ft 10.5s 9s
OK AeroTech I59 5.07lb 55ft/s 285ft/s 6.4G 2,422ft 13.5s 5s
OK Contrail I155 5.60lb 62ft/s 465ft/s 7.9G 2,432ft 11.7s 8s
OK AeroTech I280 5.36lb 78ft/s 598ft/s 13.1G 2,433ft 10.8s 9s
OK AeroTech I435 5.14lb 124ft/s 669ft/s 32.1G 2,449ft 10.3s 9s
OK Cesaroni I242 5.21lb 75ft/s 575ft/s 11.3G 2,452ft 11.0s 9s
OK Cesaroni I350 5.72lb 88ft/s 633ft/s 14.7G 2,514ft 10.9s 9s
OK AeroTech I284 5.22lb 97ft/s 629ft/s 19.8G 2,527ft 10.7s 9s
OK AeroTech I500 5.27lb 104ft/s 724ft/s 23.6G 2,601ft 10.6s 9s
OK Cesaroni I125 5.43lb 65ft/s 446ft/s 10.1G 2,603ft 12.1s 8s
warningsW Cesaroni I540 5.32lb 112ft/s 751ft/s 25.7G 2,622ft 10.6s 9s
OK AeroTech I600 5.33lb 126ft/s 745ft/s 33.6G 2,628ft 10.6s 9s
OK KBA J740 5.60lb 134ft/s 795ft/s 36.1G 2,674ft 10.6s 10s
OK Loki J396 5.66lb 88ft/s 691ft/s 19.9G 2,679ft 11.0s 9s
OK AeroTech I350 5.36lb 97ft/s 711ft/s 19.2G 2,687ft 10.9s 9s
OK AeroTech J420 5.43lb 102ft/s 704ft/s 22.1G 2,689ft 10.9s 9s
OK AeroTech J350 5.47lb 119ft/s 705ft/s 32.9G 2,695ft 10.8s 9s
OK Cesaroni J381 5.52lb 97ft/s 696ft/s 19.6G 2,713ft 11.0s 9s
OK AeroTech J340 5.27lb 103ft/s 691ft/s 24.6G 2,720ft 10.9s 9s
OK Cesaroni J335 5.38lb 90ft/s 679ft/s 16.2G 2,724ft 11.1s 9s
OK Cesaroni J357 5.32lb 97ft/s 704ft/s 20.7G 2,752ft 11.0s 9s
OK Cesaroni J285 5.31lb 86ft/s 658ft/s 14.3G 2,764ft 11.3s 9s
OK Cesaroni I216 5.32lb 75ft/s 593ft/s 13.3G 2,776ft 11.5s 8s
OK Cesaroni J270 5.44lb 76ft/s 647ft/s 11.1G 2,786ft 11.5s 9s
OK Cesaroni J316 5.34lb 88ft/s 665ft/s 17.4G 2,789ft 11.3s 9s
OK AeroTech J425 5.39lb 91ft/s 754ft/s 17.4G 2,795ft 11.1s 9s
OK AeroTech J520 5.70lb 135ft/s 749ft/s 39.3G 2,837ft 10.9s 9s
OK Cesaroni J400 5.55lb 94ft/s 730ft/s 18.0G 2,843ft 11.1s 9s
OK Cesaroni J290 5.45lb 85ft/s 671ft/s 15.2G 2,869ft 11.4s 9s
OK AeroTech J500 5.44lb 124ft/s 780ft/s 31.7G 2,884ft 10.9s 10s
OK Loki J528 5.64lb 128ft/s 813ft/s 39.7G 2,905ft 10.9s 10s
OK AeroTech J270 5.42lb 81ft/s 673ft/s 13.9G 2,936ft 11.5s 9s
OK AeroTech J575 6.02lb 126ft/s 823ft/s 31.8G 2,953ft 11.0s 10s
OK Cesaroni J94 5.46lb 49ft/s 421ft/s 5.7G 3,021ft 13.8s 7s
OK Loki J712 5.66lb 126ft/s 883ft/s 34.0G 3,055ft 11.1s 10s
OK AeroTech J435 5.38lb 114ft/s 806ft/s 27.9G 3,055ft 11.2s 9s
OK Cesaroni J410 5.62lb 99ft/s 777ft/s 19.4G 3,069ft 11.4s 10s
OK Cesaroni J425 5.54lb 103ft/s 791ft/s 26.2G 3,079ft 11.3s 9s
OK Cesaroni J330 5.55lb 95ft/s 737ft/s 17.7G 3,087ft 11.6s 9s
OK Cesaroni J520 5.87lb 107ft/s 852ft/s 24.1G 3,181ft 11.4s 10s
OK Cesaroni J354 5.72lb 97ft/s 749ft/s 19.5G 3,224ft 11.7s 9s
OK Loki J320 5.66lb 94ft/s 738ft/s 20.0G 3,240ft 11.9s 9s
OK Cesaroni J580 6.30lb 107ft/s 868ft/s 22.9G 3,267ft 11.6s 10s
OK Loki J650 6.52lb 113ft/s 896ft/s 27.2G 3,369ft 11.7s 10s
OK AeroTech J825 5.93lb 138ft/s 1,018ft/s 43.6G 3,374ft 11.3s 10s
OK Cesaroni J595 5.91lb 121ft/s 935ft/s 33.6G 3,512ft 11.7s 10s
OK Cesaroni J600 6.00lb 113ft/s 969ft/s 26.2G 3,522ft 11.7s 10s
OK Cesaroni J394 6.07lb 87ft/s 855ft/s 15.5G 3,602ft 12.2s 10s
OK AeroTech J570 5.99lb 139ft/s 898ft/s 42.3G 3,631ft 11.8s 10s
OK Cesaroni J453 6.13lb 109ft/s 877ft/s 25.7G 3,653ft 12.1s 10s
OK Cesaroni J420 5.93lb 115ft/s 870ft/s 28.8G 3,679ft 12.1s 9s
OK Cesaroni J530 6.15lb 124ft/s 965ft/s 28.5G 3,831ft 12.1s 10s
OK Loki J1000 6.52lb 160ft/s 1,145ft/s 47.3G 3,896ft 11.9s 11s
OK AeroTech J510 6.38lb 125ft/s 956ft/s 35.6G 3,962ft 12.2s 10s
OK Cesaroni J150 6.10lb 65ft/s 568ft/s 11.0G 3,971ft 14.3s 8s
OK Loki J1026 6.58lb 145ft/s 1,189ft/s 39.8G 3,998ft 12.1s 11s
OK Loki K1127 6.58lb 152ft/s 1,170ft/s 46.0G 4,006ft 12.0s 11s
OK Loki K627 6.72lb 125ft/s 1,124ft/s 32.2G 4,685ft 12.9s 10s

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 (42ft/s)
failedG Loki G69 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (40ft/s)
failedG Loki G70 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (40ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (29ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (38ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (44ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (39ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (32ft/s)

G These simulations were run with a launch guide length of 8ft (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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