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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 119 motors that fit and appear to have enough thrust (655 motors didn't fit, 35 motors failed safety checks). 154 motor had thrust curves available and 319 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:   Patroit 38mm
Owner: John Taylor
Body Diameter: 4.00in
Dry Weight: 1,968g
MMT Diameter: 38.0mm
MMT Length: 20.00in
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 2,484g 55ft/s 108ft/s 21.0G 227ft 4.0s 3s
OK Contrail G234 2,512g 86ft/s 137ft/s 21.1G 304ft 4.4s 4s
OK AeroTech G339 2,149g 79ft/s 160ft/s 16.9G 357ft 4.7s 4s
OK Contrail G123 2,479g 52ft/s 150ft/s 13.7G 404ft 5.2s 4s
OK Contrail G100 2,479g 50ft/s 146ft/s 6.5G 417ft 5.4s 4s
OK Cesaroni G185 2,156g 54ft/s 171ft/s 8.7G 421ft 5.3s 5s
OK Contrail H300 2,580g 95ft/s 184ft/s 27.3G 504ft 5.6s 5s
OK Contrail H222 2,488g 76ft/s 183ft/s 26.8G 509ft 5.6s 5s
OK Contrail H303 2,557g 102ft/s 198ft/s 30.1G 560ft 5.8s 5s
OK Contrail H246 2,566g 82ft/s 247ft/s 20.1G 820ft 7.0s 6s
warningsW AeroTech H283 2,215g 73ft/s 266ft/s 14.4G 830ft 7.0s 6s
OK AeroTech H148 2,277g 53ft/s 249ft/s 7.7G 871ft 7.5s 6s
OK AeroTech H130 2,205g 65ft/s 243ft/s 11.0G 888ft 7.4s 6s
OK Contrail H141 2,580g 60ft/s 246ft/s 9.5G 910ft 7.6s 6s
OK AeroTech H669 2,220g 115ft/s 315ft/s 49.8G 958ft 7.2s 7s
OK Loki H144 2,304g 60ft/s 269ft/s 10.0G 1,012ft 7.8s 6s
OK Loki H125 2,310g 54ft/s 257ft/s 8.1G 1,012ft 8.0s 6s
OK AeroTech H219 2,229g 67ft/s 299ft/s 12.4G 1,024ft 7.7s 7s
OK AeroTech H242 2,232g 60ft/s 301ft/s 9.8G 1,078ft 8.0s 7s
OK Loki H160 2,303g 65ft/s 293ft/s 11.8G 1,105ft 8.0s 7s
OK Cesaroni H400 2,252g 81ft/s 349ft/s 19.0G 1,137ft 7.9s 7s
OK Cesaroni H152 2,266g 50ft/s 319ft/s 8.6G 1,247ft 8.7s 7s
OK Cesaroni H225 2,161g 63ft/s 358ft/s 11.2G 1,267ft 8.4s 7s
OK AeroTech H178 2,292g 50ft/s 337ft/s 8.5G 1,269ft 8.7s 7s
OK AeroTech H550 2,291g 103ft/s 423ft/s 27.9G 1,421ft 8.5s 8s
OK AeroTech H550 2,284g 103ft/s 427ft/s 28.1G 1,424ft 8.5s 8s
OK AeroTech I218 2,340g 66ft/s 371ft/s 11.5G 1,425ft 9.0s 7s
warningsW Cesaroni H565 2,330g 97ft/s 430ft/s 26.4G 1,439ft 8.6s 8s
OK AeroTech H170 2,298g 54ft/s 356ft/s 8.0G 1,441ft 9.2s 7s
OK AeroTech H999 2,299g 138ft/s 448ft/s 70.3G 1,448ft 8.5s 8s
OK AeroTech I180 2,353g 73ft/s 349ft/s 14.7G 1,467ft 9.0s 7s
OK AeroTech I161 2,334g 56ft/s 354ft/s 8.5G 1,501ft 9.4s 7s
OK Cesaroni I180 2,362g 51ft/s 381ft/s 7.9G 1,522ft 9.4s 7s
OK AeroTech I140 2,324g 50ft/s 345ft/s 6.9G 1,544ft 9.7s 7s
OK AeroTech I245 2,333g 77ft/s 403ft/s 17.0G 1,588ft 9.2s 8s
OK AeroTech I225 2,454g 55ft/s 396ft/s 10.3G 1,591ft 9.5s 8s
OK AeroTech I357 2,311g 75ft/s 421ft/s 15.7G 1,599ft 9.2s 8s
OK Cesaroni I212 2,443g 53ft/s 408ft/s 9.3G 1,618ft 9.6s 8s
OK Cesaroni I566 2,352g 91ft/s 491ft/s 25.7G 1,669ft 9.1s 8s
OK Cesaroni I195 2,385g 56ft/s 427ft/s 9.1G 1,796ft 10.0s 8s
OK Cesaroni I345 2,363g 76ft/s 487ft/s 15.8G 1,806ft 9.6s 8s
OK Cesaroni I800 2,425g 110ft/s 549ft/s 35.5G 1,836ft 9.4s 9s
OK AeroTech I285 2,461g 70ft/s 467ft/s 14.6G 1,836ft 9.8s 8s
OK Cesaroni I170 2,360g 55ft/s 436ft/s 8.7G 1,851ft 10.2s 8s
OK Cesaroni I175 2,406g 53ft/s 427ft/s 7.1G 1,863ft 10.3s 8s
OK AeroTech I1299 2,390g 153ft/s 575ft/s 63.8G 1,869ft 9.3s 9s
OK Cesaroni I236 2,368g 64ft/s 461ft/s 12.4G 1,885ft 10.0s 8s
OK AeroTech I305 2,549g 72ft/s 478ft/s 15.3G 1,921ft 9.9s 8s
OK Cesaroni I223 2,462g 58ft/s 468ft/s 9.5G 1,940ft 10.2s 8s
OK AeroTech I211 2,423g 66ft/s 447ft/s 12.5G 1,941ft 10.1s 8s
OK AeroTech I300 2,409g 80ft/s 490ft/s 18.7G 1,950ft 9.9s 8s
OK AeroTech I195 2,540g 68ft/s 444ft/s 13.5G 1,957ft 10.2s 8s
OK Loki I316 2,508g 82ft/s 507ft/s 19.4G 2,068ft 10.1s 9s
OK Cesaroni I287 2,573g 64ft/s 525ft/s 12.3G 2,122ft 10.4s 9s
OK Loki I405 2,511g 102ft/s 553ft/s 31.6G 2,153ft 10.1s 9s
warningsW Loki I110 2,557g 48ft/s 398ft/s 9.5G 2,158ft 11.3s 7s
OK Loki I210 2,508g 77ft/s 478ft/s 17.0G 2,170ft 10.5s 8s
OK Cesaroni I285 2,474g 70ft/s 542ft/s 13.5G 2,240ft 10.6s 9s
OK Loki I377 2,528g 93ft/s 559ft/s 25.5G 2,262ft 10.4s 9s
OK Loki I430 2,508g 81ft/s 601ft/s 20.6G 2,263ft 10.4s 9s
OK Cesaroni I255 2,484g 66ft/s 535ft/s 12.0G 2,276ft 10.8s 9s
OK AeroTech I366 2,524g 84ft/s 582ft/s 18.7G 2,308ft 10.5s 9s
OK AeroTech I327 2,596g 78ft/s 573ft/s 16.0G 2,309ft 10.6s 9s
OK Cesaroni I470 2,463g 87ft/s 631ft/s 22.1G 2,320ft 10.4s 9s
OK AeroTech I364 2,646g 71ft/s 568ft/s 14.8G 2,323ft 10.6s 9s
OK AMW I297 2,559g 70ft/s 565ft/s 13.9G 2,324ft 10.7s 9s
OK Cesaroni I303 2,468g 74ft/s 573ft/s 16.1G 2,355ft 10.7s 9s
OK AeroTech I280 2,584g 66ft/s 570ft/s 12.3G 2,393ft 10.9s 9s
OK Cesaroni I242 2,518g 63ft/s 548ft/s 10.6G 2,407ft 11.1s 9s
OK AeroTech I435 2,486g 104ft/s 636ft/s 30.0G 2,424ft 10.5s 9s
OK KBA I550 2,680g 89ft/s 657ft/s 23.1G 2,444ft 10.7s 10s
OK KBA I301 2,694g 68ft/s 574ft/s 14.3G 2,476ft 11.1s 9s
OK Cesaroni I350 2,750g 74ft/s 604ft/s 13.9G 2,479ft 11.0s 9s
OK AeroTech I284 2,524g 82ft/s 601ft/s 18.6G 2,497ft 10.8s 9s
OK Cesaroni I125 2,615g 54ft/s 428ft/s 9.4G 2,534ft 12.1s 8s
OK AeroTech I500 2,544g 91ft/s 688ft/s 22.1G 2,582ft 10.8s 9s
warningsW Cesaroni I540 2,566g 97ft/s 714ft/s 24.1G 2,606ft 10.7s 10s
OK AeroTech I600 2,570g 108ft/s 709ft/s 31.6G 2,612ft 10.7s 10s
OK KBA J520 2,690g 91ft/s 691ft/s 26.0G 2,631ft 11.0s 10s
OK Loki J396 2,720g 73ft/s 660ft/s 18.9G 2,653ft 11.1s 10s
OK KBA J740 2,692g 109ft/s 755ft/s 34.1G 2,659ft 10.8s 10s
OK AeroTech I350 2,584g 80ft/s 679ft/s 18.1G 2,666ft 11.1s 9s
OK AeroTech J420 2,618g 85ft/s 672ft/s 20.7G 2,667ft 11.0s 9s
OK AeroTech J350 2,633g 104ft/s 674ft/s 30.9G 2,677ft 10.9s 9s
OK Cesaroni J381 2,656g 80ft/s 665ft/s 18.4G 2,690ft 11.1s 9s
OK Cesaroni J335 2,595g 74ft/s 649ft/s 15.2G 2,697ft 11.2s 9s
OK AeroTech J340 2,545g 85ft/s 661ft/s 23.1G 2,700ft 11.0s 9s
OK Cesaroni J357 2,569g 80ft/s 673ft/s 19.4G 2,730ft 11.2s 9s
OK AeroTech J520 2,725g 113ft/s 683ft/s 32.6G 2,733ft 11.0s 10s
OK Cesaroni J285 2,563g 72ft/s 629ft/s 13.4G 2,734ft 11.4s 9s
OK Cesaroni I216 2,569g 63ft/s 568ft/s 12.5G 2,735ft 11.6s 9s
OK Cesaroni J270 2,623g 61ft/s 620ft/s 10.5G 2,752ft 11.6s 9s
OK Cesaroni J316 2,575g 73ft/s 637ft/s 16.3G 2,757ft 11.4s 9s
OK AeroTech J425 2,599g 75ft/s 720ft/s 16.3G 2,777ft 11.2s 10s
OK Cesaroni J400 2,670g 80ft/s 698ft/s 16.9G 2,825ft 11.3s 10s
OK Loki J474 2,724g 116ft/s 676ft/s 43.8G 2,830ft 11.1s 10s
OK Cesaroni J290 2,628g 72ft/s 643ft/s 14.2G 2,842ft 11.6s 9s
OK AeroTech J500 2,622g 100ft/s 746ft/s 29.8G 2,876ft 11.1s 10s
OK Loki J528 2,713g 112ft/s 776ft/s 37.4G 2,898ft 11.1s 10s
OK AeroTech J270 2,610g 67ft/s 645ft/s 13.0G 2,910ft 11.7s 9s
OK AeroTech J575 2,882g 109ft/s 787ft/s 30.0G 2,954ft 11.1s 10s
OK Loki J326 2,734g 94ft/s 641ft/s 35.3G 3,012ft 11.7s 9s
OK AeroTech J435 2,592g 99ft/s 772ft/s 26.1G 3,050ft 11.4s 10s
OK Loki J712 2,720g 105ft/s 843ft/s 32.0G 3,054ft 11.3s 10s
OK Cesaroni J410 2,703g 85ft/s 746ft/s 18.3G 3,058ft 11.6s 10s
OK Cesaroni J330 2,670g 79ft/s 709ft/s 16.6G 3,071ft 11.8s 10s
OK Cesaroni J425 2,668g 90ft/s 759ft/s 24.6G 3,071ft 11.5s 10s
OK Cesaroni J520 2,818g 88ft/s 818ft/s 22.7G 3,180ft 11.6s 10s
OK Cesaroni J354 2,746g 81ft/s 721ft/s 18.3G 3,211ft 11.9s 9s
OK Cesaroni J580 3,012g 88ft/s 833ft/s 21.7G 3,267ft 11.8s 10s
OK AeroTech J825 2,843g 118ft/s 976ft/s 41.2G 3,395ft 11.5s 10s
OK Cesaroni J595 2,834g 106ft/s 900ft/s 31.8G 3,527ft 11.9s 10s
OK Cesaroni J600 2,874g 99ft/s 932ft/s 24.7G 3,538ft 11.9s 10s
OK Cesaroni J394 2,907g 73ft/s 826ft/s 14.6G 3,601ft 12.4s 10s
OK AeroTech J570 2,870g 117ft/s 867ft/s 40.0G 3,645ft 12.0s 10s
OK Cesaroni J453 2,932g 90ft/s 847ft/s 24.3G 3,660ft 12.3s 10s
OK Cesaroni J420 2,842g 94ft/s 840ft/s 27.1G 3,683ft 12.3s 10s
OK Cesaroni J530 2,945g 100ft/s 932ft/s 26.9G 3,850ft 12.3s 10s
OK Cesaroni J150 2,919g 56ft/s 552ft/s 10.3G 3,919ft 14.5s 8s

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 (35ft/s)
failedG Loki G69 speed at end of launch guide too slow (37ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (32ft/s)
failedG Loki G70 speed at end of launch guide too slow (37ft/s)
failedG Loki G94 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (32ft/s)
failedG Loki G80 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (31ft/s)
failedG Loki G66 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (33ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (24ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (231ft)
failedG AeroTech H73 speed at end of launch guide too slow (31ft/s)
failedG Loki H100 speed at end of launch guide too slow (43ft/s)
failedG AeroTech H123 speed at end of launch guide too slow (45ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (41ft/s)
failedG Loki H90 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (44ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (40ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (32ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (45ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (26ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (42ft/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.)

A The minimum altitude check is used to ensure that the rocket flies high enough to ensure time for a safe recovery. In addition, many barometric altimeters require a minimum altitude to detect lift-off. (The minimum altitude is 10m or 33ft for an A motor and doubles for each impulse class).

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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