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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 136 motors that fit and appear to have enough thrust (622 motors didn't fit, 42 motors failed safety checks). 178 motor had thrust curves available and 364 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:   Demon 75-Five
Owner: Erik Czerwin
Body Diameter: 3.11in
Dry Weight: 5.00lb
MMT Diameter: 38.0mm
MMT Length: 48.00in
CD: 0.40

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 G234 6.20lb 83ft/s 122ft/s 18.7G 267ft 4.2s 4s
OK AeroTech G339 5.40lb 74ft/s 140ft/s 14.7G 314ft 4.6s 4s
OK Contrail G123 6.13lb 50ft/s 133ft/s 12.1G 358ft 5.1s 4s
OK Cesaroni G185 5.42lb 51ft/s 149ft/s 7.6G 375ft 5.1s 4s
OK Contrail H300 6.35lb 88ft/s 166ft/s 24.4G 473ft 5.5s 5s
OK Contrail H222 6.15lb 72ft/s 165ft/s 23.8G 476ft 5.6s 5s
OK Contrail H303 6.30lb 93ft/s 179ft/s 26.8G 537ft 5.9s 5s
OK Contrail H211 6.32lb 81ft/s 206ft/s 21.4G 744ft 7.0s 6s
OK Contrail H121 6.35lb 48ft/s 203ft/s 8.4G 816ft 7.7s 6s
OK Contrail H246 6.32lb 77ft/s 226ft/s 17.9G 850ft 7.4s 6s
warningsW AeroTech H283 5.54lb 69ft/s 238ft/s 12.6G 873ft 7.5s 7s
OK AeroTech H148 5.68lb 50ft/s 226ft/s 6.7G 902ft 8.0s 6s
OK AeroTech H130 5.52lb 60ft/s 224ft/s 9.6G 931ft 8.0s 6s
OK Contrail H141 6.35lb 55ft/s 227ft/s 8.4G 947ft 8.1s 6s
OK Contrail H248 6.75lb 76ft/s 248ft/s 22.1G 1,027ft 8.2s 7s
OK AeroTech H669 5.56lb 107ft/s 279ft/s 43.8G 1,077ft 8.1s 8s
OK Loki H125 5.75lb 49ft/s 240ft/s 7.0G 1,087ft 8.8s 7s
OK Loki H144 5.74lb 58ft/s 250ft/s 8.7G 1,102ft 8.6s 7s
OK AeroTech H219 5.58lb 62ft/s 273ft/s 10.8G 1,152ft 8.7s 8s
OK AeroTech H242 5.58lb 56ft/s 276ft/s 8.6G 1,214ft 9.0s 8s
OK Loki H160 5.74lb 63ft/s 273ft/s 10.3G 1,250ft 9.1s 8s
OK Contrail H277 6.57lb 83ft/s 287ft/s 24.9G 1,312ft 9.2s 8s
OK Contrail H340 6.80lb 85ft/s 295ft/s 28.7G 1,342ft 9.2s 8s
OK Cesaroni H400 5.63lb 75ft/s 313ft/s 16.9G 1,343ft 9.2s 9s
OK Cesaroni H225 5.43lb 60ft/s 327ft/s 9.7G 1,540ft 10.0s 9s
OK Contrail I500 6.76lb 107ft/s 337ft/s 32.8G 1,611ft 9.9s 9s
OK AeroTech H170 5.73lb 49ft/s 339ft/s 7.1G 1,787ft 11.0s 9s
OK AeroTech I218 5.82lb 61ft/s 349ft/s 10.1G 1,788ft 10.7s 9s
OK Contrail I221 6.57lb 75ft/s 335ft/s 15.5G 1,815ft 10.8s 9s
OK AeroTech I180 5.85lb 68ft/s 338ft/s 12.9G 1,845ft 10.9s 9s
OK AeroTech H550 5.71lb 95ft/s 384ft/s 24.6G 1,858ft 10.5s 10s
OK AeroTech H550 5.70lb 95ft/s 387ft/s 24.8G 1,876ft 10.6s 10s
OK AeroTech I161 5.81lb 52ft/s 343ft/s 7.5G 1,885ft 11.2s 9s
warningsW Cesaroni H565 5.80lb 94ft/s 389ft/s 24.8G 1,890ft 10.6s 10s
OK AeroTech H999 5.73lb 126ft/s 402ft/s 62.1G 1,935ft 10.6s 10s
OK AeroTech I225 6.07lb 53ft/s 379ft/s 9.5G 2,077ft 11.6s 10s
OK AeroTech I245 5.80lb 72ft/s 387ft/s 15.1G 2,115ft 11.4s 10s
OK Cesaroni I212 6.05lb 51ft/s 389ft/s 8.8G 2,119ft 11.8s 10s
OK AeroTech I357 5.76lb 71ft/s 398ft/s 13.8G 2,142ft 11.5s 10s
OK Contrail I290 6.95lb 64ft/s 393ft/s 15.2G 2,257ft 11.9s 10s
OK Contrail I400 7.04lb 96ft/s 412ft/s 27.4G 2,288ft 11.8s 11s
OK Cesaroni I566 5.85lb 89ft/s 448ft/s 23.8G 2,343ft 11.7s 11s
OK Contrail I747 6.85lb 145ft/s 442ft/s 61.3G 2,385ft 11.7s 11s
OK Contrail I250 6.60lb 72ft/s 407ft/s 18.5G 2,418ft 12.2s 11s
OK Cesaroni I195 5.92lb 54ft/s 417ft/s 8.0G 2,440ft 12.6s 11s
OK Cesaroni I175 5.96lb 48ft/s 421ft/s 6.5G 2,541ft 12.9s 10s
OK Cesaroni I170 5.86lb 52ft/s 426ft/s 7.7G 2,547ft 12.9s 10s
OK Cesaroni I345 5.87lb 71ft/s 459ft/s 13.9G 2,560ft 12.4s 11s
OK AeroTech I285 6.09lb 67ft/s 449ft/s 13.0G 2,583ft 12.6s 11s
OK Cesaroni I236 5.88lb 59ft/s 450ft/s 10.9G 2,663ft 12.9s 11s
OK Cesaroni I800 6.01lb 103ft/s 500ft/s 34.0G 2,712ft 12.4s 12s
OK Cesaroni I223 6.09lb 54ft/s 458ft/s 8.7G 2,751ft 13.2s 11s
OK AeroTech I211 6.00lb 62ft/s 445ft/s 11.0G 2,753ft 13.1s 11s
OK AeroTech I195 6.26lb 65ft/s 444ft/s 12.0G 2,766ft 13.1s 11s
OK AeroTech I305 6.28lb 68ft/s 466ft/s 13.9G 2,773ft 12.9s 11s
OK Contrail I210 6.92lb 72ft/s 421ft/s 14.2G 2,802ft 13.4s 11s
OK AeroTech I1299 5.93lb 142ft/s 520ft/s 57.4G 2,826ft 12.5s 12s
OK AeroTech I300 5.97lb 75ft/s 476ft/s 16.5G 2,836ft 13.0s 11s
OK Loki I316 6.19lb 78ft/s 500ft/s 17.3G 3,080ft 13.4s 12s
OK Cesaroni I287 6.33lb 61ft/s 514ft/s 11.6G 3,168ft 13.8s 12s
OK Loki I210 6.19lb 72ft/s 486ft/s 15.1G 3,209ft 13.9s 12s
OK Contrail I155 6.60lb 50ft/s 460ft/s 6.6G 3,305ft 14.8s 11s
OK Contrail I333 7.05lb 81ft/s 507ft/s 26.8G 3,320ft 14.1s 12s
OK Loki I405 6.20lb 99ft/s 542ft/s 28.2G 3,326ft 13.7s 13s
OK Cesaroni I285 6.12lb 65ft/s 541ft/s 12.0G 3,438ft 14.3s 12s
OK Cesaroni I255 6.14lb 62ft/s 539ft/s 10.7G 3,482ft 14.5s 12s
OK Loki I377 6.23lb 90ft/s 557ft/s 22.7G 3,526ft 14.2s 13s
OK Loki I430 6.19lb 77ft/s 579ft/s 18.3G 3,550ft 14.2s 13s
OK AeroTech I327 6.38lb 74ft/s 567ft/s 14.2G 3,613ft 14.5s 13s
OK AMW I297 6.30lb 65ft/s 562ft/s 12.3G 3,622ft 14.6s 13s
OK AeroTech I364 6.49lb 67ft/s 568ft/s 13.8G 3,644ft 14.5s 13s
OK AeroTech I366 6.22lb 78ft/s 578ft/s 16.7G 3,652ft 14.4s 13s
OK Contrail I307 6.79lb 87ft/s 541ft/s 22.5G 3,676ft 14.6s 13s
OK Cesaroni I125 6.43lb 51ft/s 469ft/s 8.4G 3,685ft 15.7s 11s
OK Cesaroni I303 6.10lb 70ft/s 573ft/s 14.2G 3,718ft 14.7s 13s
OK Cesaroni I242 6.21lb 59ft/s 562ft/s 9.3G 3,737ft 15.0s 13s
OK Cesaroni I470 6.09lb 83ft/s 609ft/s 19.6G 3,748ft 14.5s 13s
OK AeroTech I280 6.36lb 65ft/s 575ft/s 10.9G 3,759ft 14.9s 13s
OK Contrail I727 7.05lb 138ft/s 603ft/s 52.0G 3,856ft 14.6s 14s
OK Cesaroni I350 6.72lb 70ft/s 603ft/s 12.6G 3,947ft 15.1s 13s
OK KBA I301 6.60lb 64ft/s 618ft/s 13.1G 3,979ft 15.0s 13s
OK AeroTech I435 6.14lb 96ft/s 628ft/s 26.7G 3,995ft 14.8s 13s
OK AeroTech I284 6.22lb 78ft/s 613ft/s 16.7G 4,071ft 15.1s 13s
OK KBA I550 6.57lb 87ft/s 679ft/s 24.1G 4,071ft 14.8s 14s
OK Contrail J150 6.96lb 53ft/s 512ft/s 7.6G 4,107ft 16.3s 12s
OK AeroTech I500 6.27lb 81ft/s 677ft/s 19.8G 4,375ft 15.4s 14s
OK Contrail J246 6.90lb 73ft/s 579ft/s 16.1G 4,377ft 16.1s 13s
OK Cesaroni I216 6.32lb 59ft/s 603ft/s 11.0G 4,404ft 16.1s 13s
OK KBA J520 6.59lb 81ft/s 679ft/s 23.3G 4,406ft 15.6s 14s
OK Loki J396 6.66lb 70ft/s 663ft/s 18.0G 4,407ft 15.7s 14s
warningsW Cesaroni I540 6.32lb 87ft/s 700ft/s 21.9G 4,464ft 15.5s 14s
OK AeroTech I600 6.33lb 105ft/s 699ft/s 28.1G 4,485ft 15.5s 14s
OK Cesaroni J335 6.38lb 71ft/s 665ft/s 13.5G 4,500ft 15.9s 14s
OK AeroTech J420 6.43lb 81ft/s 681ft/s 18.6G 4,507ft 15.7s 14s
OK AeroTech I350 6.36lb 76ft/s 686ft/s 16.6G 4,515ft 15.8s 14s
OK Cesaroni J270 6.44lb 60ft/s 649ft/s 9.8G 4,524ft 16.2s 14s
OK Cesaroni J381 6.52lb 76ft/s 675ft/s 16.4G 4,528ft 15.8s 14s
OK Cesaroni J285 6.31lb 67ft/s 654ft/s 12.3G 4,545ft 16.1s 14s
OK AeroTech J350 6.47lb 96ft/s 682ft/s 27.6G 4,550ft 15.7s 14s
OK Cesaroni J316 6.34lb 69ft/s 657ft/s 14.5G 4,565ft 16.1s 14s
OK KBA J740 6.60lb 105ft/s 720ft/s 32.9G 4,567ft 15.6s 15s
OK AeroTech J340 6.27lb 81ft/s 677ft/s 20.5G 4,576ft 15.8s 14s
OK Cesaroni J357 6.32lb 76ft/s 689ft/s 17.3G 4,631ft 16.0s 14s
OK RATT J160 6.20lb 55ft/s 539ft/s 8.5G 4,660ft 17.3s 12s
OK Cesaroni J290 6.45lb 68ft/s 678ft/s 12.7G 4,775ft 16.5s 14s
OK AeroTech J425 6.39lb 71ft/s 725ft/s 15.4G 4,787ft 16.2s 15s
OK Cesaroni J400 6.55lb 77ft/s 717ft/s 15.8G 4,859ft 16.3s 15s
OK AeroTech J520 6.70lb 105ft/s 726ft/s 33.5G 4,905ft 16.1s 15s
OK AeroTech J270 6.42lb 64ft/s 687ft/s 11.5G 4,932ft 16.7s 14s
OK AeroTech J500 6.44lb 96ft/s 762ft/s 26.6G 5,094ft 16.3s 15s
OK Loki J528 6.64lb 100ft/s 775ft/s 33.6G 5,155ft 16.4s 15s
OK AeroTech J575 7.02lb 98ft/s 793ft/s 27.6G 5,328ft 16.6s 15s
OK Cesaroni J330 6.55lb 75ft/s 749ft/s 14.8G 5,370ft 17.1s 15s
OK Cesaroni J410 6.62lb 78ft/s 779ft/s 16.3G 5,415ft 17.0s 15s
OK Cesaroni J425 6.54lb 86ft/s 789ft/s 22.0G 5,492ft 17.0s 15s
OK AeroTech J435 6.38lb 89ft/s 801ft/s 23.3G 5,500ft 16.9s 15s
OK Loki J712 6.66lb 103ft/s 837ft/s 28.7G 5,568ft 16.9s 16s
OK Loki J320 6.66lb 75ft/s 764ft/s 16.9G 5,634ft 17.5s 15s
OK Cesaroni J354 6.72lb 77ft/s 782ft/s 16.4G 5,686ft 17.4s 15s
OK Cesaroni J520 6.87lb 85ft/s 842ft/s 20.4G 5,800ft 17.3s 16s
OK Cesaroni J580 7.30lb 86ft/s 859ft/s 21.4G 5,955ft 17.6s 16s
OK Loki J650 7.52lb 90ft/s 881ft/s 28.0G 6,197ft 17.8s 16s
OK Cesaroni J150 7.10lb 53ft/s 666ft/s 9.3G 6,472ft 20.0s 14s
OK AeroTech J825 6.93lb 118ft/s 990ft/s 37.2G 6,562ft 17.8s 17s
OK Cesaroni J394 7.07lb 70ft/s 904ft/s 14.4G 6,639ft 18.6s 16s
OK Cesaroni J595 6.91lb 95ft/s 963ft/s 28.6G 6,741ft 18.2s 17s
OK Cesaroni J600 7.00lb 89ft/s 979ft/s 22.8G 6,780ft 18.3s 17s
OK Cesaroni J453 7.13lb 87ft/s 928ft/s 21.9G 6,860ft 18.6s 16s
OK Cesaroni J420 6.93lb 91ft/s 916ft/s 24.5G 6,882ft 18.6s 16s
OK AeroTech J570 6.99lb 116ft/s 947ft/s 36.1G 6,950ft 18.4s 16s
OK Cesaroni J530 7.15lb 98ft/s 1,019ft/s 24.3G 7,453ft 19.0s 17s
OK AeroTech J510 7.38lb 99ft/s 1,030ft/s 30.7G 7,686ft 19.2s 17s
OK Loki J1000 7.52lb 126ft/s 1,138ft/s 40.9G 7,854ft 19.1s 18s
OK Loki J1026 7.58lb 114ft/s 1,191ft/s 36.1G 8,140ft 19.4s 18s
OK Loki K1127 7.58lb 119ft/s 1,181ft/s 41.8G 8,181ft 19.4s 18s
OK Loki K627 7.72lb 100ft/s 1,252ft/s 27.9G 9,522ft 20.8s 18s

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
failedA Contrail G130 rocket doesn't reach a safe altitude (191ft)
failedG AeroTech G67 speed at end of launch guide too slow (32ft/s)
failedG Loki G69 speed at end of launch guide too slow (34ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (30ft/s)
failedG Loki G70 speed at end of launch guide too slow (34ft/s)
failedG Loki G94 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (29ft/s)
failedG Loki G80 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (28ft/s)
failedG Loki G66 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (30ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (31ft/s)
failedG Contrail G100 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (22ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (199ft)
failedG AeroTech H73 speed at end of launch guide too slow (28ft/s)
failedG Loki H100 speed at end of launch guide too slow (40ft/s)
failedG AeroTech H123 speed at end of launch guide too slow (42ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (38ft/s)
failedG Loki H90 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (41ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni H152 speed at end of launch guide too slow (47ft/s)
failedG AeroTech H178 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (30ft/s)
failedG AeroTech I140 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni I180 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (42ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (21ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (24ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (43ft/s)
failedG Loki I110 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (39ft/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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