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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 147 motors that fit and appear to have enough thrust (608 motors didn't fit, 36 motors failed safety checks). 183 motor had thrust curves available and 373 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:   Formula 75
Owner: John Olevich
Body Diameter: 3.00in
Dry Weight: 5.50lb
MMT Diameter: 38.0mm
MMT Length: 720.00in
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 G234 6.70lb 90ft/s 112ft/s 17.2G 226ft 3.9s 3s
OK AeroTech G339 5.90lb 82ft/s 127ft/s 13.4G 260ft 4.2s 4s
OK Contrail G123 6.63lb 54ft/s 121ft/s 11.1G 300ft 4.7s 4s
OK Cesaroni G185 5.92lb 57ft/s 134ft/s 6.9G 308ft 4.7s 4s
OK Contrail G100 6.63lb 50ft/s 117ft/s 5.2G 309ft 4.8s 3s
OK Contrail H300 6.85lb 88ft/s 152ft/s 22.5G 401ft 5.1s 5s
OK Contrail H222 6.65lb 77ft/s 151ft/s 21.9G 402ft 5.2s 4s
OK Contrail H303 6.80lb 95ft/s 164ft/s 24.7G 455ft 5.4s 5s
OK Contrail H211 6.82lb 87ft/s 188ft/s 19.8G 628ft 6.4s 5s
OK Contrail H121 6.85lb 53ft/s 183ft/s 7.7G 684ft 7.1s 5s
OK Contrail H246 6.82lb 82ft/s 207ft/s 16.5G 717ft 6.8s 6s
warningsW AeroTech H283 6.04lb 76ft/s 215ft/s 11.5G 721ft 6.9s 6s
OK AeroTech H148 6.18lb 55ft/s 203ft/s 6.1G 743ft 7.3s 6s
OK AeroTech H130 6.02lb 64ft/s 200ft/s 8.7G 766ft 7.3s 6s
OK Contrail H141 6.85lb 62ft/s 207ft/s 7.7G 795ft 7.4s 6s
OK Contrail H248 7.25lb 80ft/s 227ft/s 20.5G 871ft 7.5s 6s
OK AeroTech H669 6.06lb 118ft/s 255ft/s 40.1G 892ft 7.4s 7s
OK Loki H125 6.25lb 56ft/s 215ft/s 6.4G 897ft 8.0s 6s
OK Loki H144 6.24lb 62ft/s 225ft/s 7.9G 911ft 7.9s 6s
OK AeroTech H219 6.08lb 68ft/s 247ft/s 9.8G 949ft 7.9s 7s
OK AeroTech H242 6.08lb 62ft/s 249ft/s 7.8G 999ft 8.2s 7s
OK Loki H160 6.24lb 69ft/s 246ft/s 9.4G 1,035ft 8.3s 7s
OK Contrail H277 7.07lb 86ft/s 263ft/s 23.1G 1,107ft 8.4s 7s
OK Cesaroni H400 6.13lb 83ft/s 285ft/s 15.4G 1,109ft 8.3s 8s
OK Contrail H340 7.30lb 88ft/s 272ft/s 26.6G 1,140ft 8.5s 8s
OK Cesaroni H152 6.16lb 53ft/s 267ft/s 6.8G 1,193ft 9.1s 7s
OK AeroTech H178 6.21lb 51ft/s 281ft/s 6.9G 1,238ft 9.2s 7s
OK Cesaroni H225 5.93lb 65ft/s 295ft/s 8.8G 1,262ft 9.1s 8s
OK Contrail I500 7.26lb 116ft/s 311ft/s 30.5G 1,362ft 9.1s 8s
OK AeroTech H170 6.23lb 54ft/s 304ft/s 6.5G 1,469ft 10.0s 8s
OK AeroTech I218 6.32lb 67ft/s 316ft/s 9.2G 1,476ft 9.8s 8s
OK Contrail I221 7.07lb 82ft/s 306ft/s 14.3G 1,525ft 9.9s 8s
OK AeroTech I180 6.35lb 78ft/s 305ft/s 11.8G 1,526ft 9.9s 8s
OK AeroTech H550 6.21lb 108ft/s 350ft/s 22.5G 1,534ft 9.6s 9s
OK AeroTech H550 6.20lb 108ft/s 353ft/s 22.7G 1,547ft 9.6s 9s
OK AeroTech I161 6.31lb 57ft/s 308ft/s 6.8G 1,552ft 10.3s 8s
warningsW Cesaroni H565 6.30lb 101ft/s 355ft/s 22.5G 1,561ft 9.7s 9s
OK AeroTech I140 6.28lb 51ft/s 303ft/s 5.5G 1,584ft 10.6s 8s
OK Cesaroni I180 6.37lb 53ft/s 325ft/s 6.7G 1,590ft 10.4s 8s
OK AeroTech H999 6.23lb 140ft/s 367ft/s 57.0G 1,598ft 9.6s 9s
OK AeroTech I225 6.57lb 59ft/s 343ft/s 8.6G 1,717ft 10.6s 9s
OK AeroTech I245 6.30lb 83ft/s 350ft/s 13.8G 1,745ft 10.4s 9s
OK Cesaroni I212 6.55lb 57ft/s 352ft/s 8.0G 1,749ft 10.8s 9s
OK AeroTech I357 6.26lb 80ft/s 360ft/s 12.6G 1,765ft 10.4s 9s
OK Contrail I290 7.45lb 74ft/s 361ft/s 14.1G 1,905ft 10.9s 9s
OK Contrail I400 7.54lb 100ft/s 381ft/s 25.5G 1,930ft 10.8s 10s
OK Cesaroni I566 6.35lb 98ft/s 409ft/s 21.6G 1,931ft 10.6s 10s
OK Contrail I747 7.35lb 158ft/s 409ft/s 57.1G 2,005ft 10.7s 10s
OK Cesaroni I195 6.42lb 59ft/s 376ft/s 7.3G 2,008ft 11.5s 9s
OK Contrail I250 7.10lb 78ft/s 372ft/s 17.1G 2,023ft 11.2s 10s
OK Cesaroni I175 6.46lb 53ft/s 378ft/s 5.8G 2,089ft 11.8s 9s
OK Cesaroni I170 6.36lb 57ft/s 384ft/s 7.0G 2,093ft 11.7s 9s
OK Cesaroni I345 6.37lb 77ft/s 417ft/s 12.8G 2,108ft 11.3s 10s
OK AeroTech I285 6.59lb 74ft/s 408ft/s 11.9G 2,134ft 11.4s 10s
OK Cesaroni I236 6.38lb 65ft/s 407ft/s 9.9G 2,190ft 11.7s 10s
OK Cesaroni I800 6.51lb 117ft/s 458ft/s 30.9G 2,236ft 11.3s 11s
OK Cesaroni I223 6.59lb 60ft/s 414ft/s 7.9G 2,266ft 12.0s 10s
OK AeroTech I211 6.50lb 69ft/s 402ft/s 10.1G 2,270ft 11.9s 10s
OK AeroTech I195 6.76lb 72ft/s 402ft/s 11.1G 2,289ft 12.0s 10s
OK AeroTech I305 6.78lb 78ft/s 424ft/s 12.7G 2,295ft 11.7s 10s
OK AeroTech I1299 6.43lb 158ft/s 477ft/s 52.6G 2,327ft 11.3s 11s
OK AeroTech I300 6.47lb 80ft/s 432ft/s 15.2G 2,337ft 11.8s 10s
OK Contrail I210 7.42lb 80ft/s 383ft/s 13.2G 2,351ft 12.3s 10s
warningsW Loki I110 6.80lb 49ft/s 371ft/s 7.7G 2,459ft 13.0s 9s
OK Loki I316 6.69lb 87ft/s 455ft/s 15.9G 2,545ft 12.2s 11s
OK Cesaroni I287 6.83lb 67ft/s 467ft/s 10.6G 2,614ft 12.6s 11s
OK Loki I210 6.69lb 77ft/s 439ft/s 13.9G 2,651ft 12.6s 10s
OK Loki I405 6.70lb 113ft/s 494ft/s 26.0G 2,745ft 12.4s 11s
OK Contrail I155 7.10lb 55ft/s 415ft/s 6.0G 2,745ft 13.6s 10s
OK Contrail I333 7.55lb 88ft/s 466ft/s 24.9G 2,777ft 12.8s 11s
OK Cesaroni I285 6.62lb 72ft/s 490ft/s 11.0G 2,827ft 13.0s 11s
OK Cesaroni I255 6.64lb 69ft/s 488ft/s 9.8G 2,864ft 13.2s 11s
OK Loki I377 6.73lb 100ft/s 506ft/s 21.0G 2,908ft 12.9s 11s
OK Loki I430 6.69lb 85ft/s 528ft/s 16.9G 2,922ft 12.9s 12s
OK AeroTech I327 6.88lb 79ft/s 516ft/s 13.1G 2,979ft 13.2s 11s
OK AMW I297 6.80lb 73ft/s 511ft/s 11.3G 2,985ft 13.2s 11s
OK AeroTech I366 6.72lb 88ft/s 525ft/s 15.3G 3,006ft 13.1s 12s
OK AeroTech I364 6.99lb 77ft/s 517ft/s 12.7G 3,008ft 13.2s 12s
OK Cesaroni I125 6.93lb 55ft/s 418ft/s 7.7G 3,041ft 14.4s 10s
OK Cesaroni I303 6.60lb 75ft/s 519ft/s 13.1G 3,055ft 13.3s 11s
OK Contrail I307 7.29lb 100ft/s 495ft/s 20.9G 3,059ft 13.3s 11s
OK Cesaroni I242 6.71lb 64ft/s 507ft/s 8.6G 3,073ft 13.7s 11s
OK Cesaroni I470 6.59lb 93ft/s 555ft/s 18.0G 3,078ft 13.1s 12s
OK AeroTech I280 6.86lb 69ft/s 521ft/s 10.1G 3,094ft 13.5s 12s
OK Contrail I727 7.55lb 150ft/s 558ft/s 48.5G 3,212ft 13.2s 13s
OK Cesaroni I350 7.22lb 75ft/s 551ft/s 11.5G 3,261ft 13.7s 12s
OK KBA I301 7.10lb 72ft/s 559ft/s 12.0G 3,274ft 13.7s 12s
OK AeroTech I435 6.64lb 107ft/s 571ft/s 24.6G 3,282ft 13.4s 12s
OK KBA I550 7.07lb 91ft/s 619ft/s 21.8G 3,340ft 13.4s 12s
OK AeroTech I284 6.72lb 86ft/s 556ft/s 15.4G 3,347ft 13.7s 12s
OK Contrail J150 7.46lb 59ft/s 463ft/s 7.0G 3,418ft 14.9s 11s
OK AeroTech I500 6.77lb 91ft/s 617ft/s 18.1G 3,589ft 13.9s 13s
OK Cesaroni I216 6.82lb 68ft/s 543ft/s 10.2G 3,622ft 14.7s 12s
OK Loki J396 7.16lb 80ft/s 605ft/s 16.5G 3,630ft 14.2s 13s
OK Contrail J246 7.40lb 86ft/s 527ft/s 14.9G 3,635ft 14.7s 12s
warningsW Cesaroni I540 6.82lb 99ft/s 638ft/s 20.1G 3,661ft 14.0s 13s
OK AeroTech I600 6.83lb 112ft/s 638ft/s 26.0G 3,680ft 14.0s 13s
OK Cesaroni J335 6.88lb 81ft/s 603ft/s 12.4G 3,697ft 14.4s 12s
OK AeroTech J420 6.93lb 90ft/s 620ft/s 17.2G 3,703ft 14.3s 13s
OK AeroTech I350 6.86lb 83ft/s 624ft/s 15.3G 3,704ft 14.3s 13s
OK Cesaroni J270 6.94lb 66ft/s 587ft/s 8.9G 3,717ft 14.7s 12s
OK Cesaroni J381 7.02lb 84ft/s 614ft/s 15.2G 3,724ft 14.4s 13s
OK Cesaroni J285 6.81lb 72ft/s 592ft/s 11.3G 3,731ft 14.6s 12s
OK AeroTech J350 6.97lb 106ft/s 622ft/s 25.6G 3,742ft 14.2s 13s
OK Cesaroni J316 6.84lb 79ft/s 596ft/s 13.4G 3,751ft 14.6s 12s
OK KBA J740 7.10lb 112ft/s 662ft/s 30.0G 3,755ft 14.1s 13s
OK AeroTech J340 6.77lb 89ft/s 614ft/s 18.9G 3,757ft 14.3s 12s
OK Cesaroni J357 6.82lb 83ft/s 626ft/s 15.9G 3,799ft 14.5s 13s
OK RATT J160 6.70lb 62ft/s 480ft/s 7.8G 3,836ft 15.8s 11s
OK Contrail J333 7.85lb 104ft/s 550ft/s 21.9G 3,873ft 14.8s 12s
OK AeroTech J425 6.89lb 78ft/s 660ft/s 14.0G 3,922ft 14.6s 13s
OK Cesaroni J290 6.95lb 76ft/s 613ft/s 11.7G 3,922ft 14.9s 13s
OK Cesaroni J400 7.05lb 84ft/s 652ft/s 14.5G 3,990ft 14.8s 13s
OK Contrail J242 7.85lb 78ft/s 539ft/s 11.8G 3,991ft 15.4s 12s
OK AeroTech J520 7.20lb 125ft/s 664ft/s 31.1G 4,037ft 14.6s 13s
OK AeroTech J270 6.92lb 71ft/s 620ft/s 10.6G 4,048ft 15.1s 13s
OK AeroTech J500 6.94lb 110ft/s 694ft/s 24.6G 4,175ft 14.8s 13s
OK Contrail J555 8.00lb 130ft/s 642ft/s 36.7G 4,200ft 15.0s 13s
OK Loki J528 7.14lb 116ft/s 709ft/s 31.1G 4,232ft 14.8s 14s
OK AeroTech J575 7.52lb 116ft/s 727ft/s 25.6G 4,383ft 15.0s 14s
OK Cesaroni J330 7.05lb 82ft/s 679ft/s 13.7G 4,405ft 15.5s 13s
OK Cesaroni J410 7.12lb 87ft/s 708ft/s 15.1G 4,441ft 15.4s 13s
OK AeroTech J435 6.88lb 101ft/s 728ft/s 21.5G 4,500ft 15.3s 14s
OK Cesaroni J425 7.04lb 96ft/s 718ft/s 20.4G 4,502ft 15.3s 13s
OK Loki J712 7.16lb 111ft/s 766ft/s 26.6G 4,560ft 15.2s 14s
OK Loki J320 7.16lb 81ft/s 693ft/s 15.6G 4,627ft 15.8s 13s
OK Cesaroni J354 7.22lb 85ft/s 709ft/s 15.2G 4,669ft 15.8s 13s
OK Cesaroni J520 7.37lb 95ft/s 769ft/s 19.0G 4,757ft 15.7s 14s
OK Cesaroni J580 7.80lb 97ft/s 787ft/s 19.5G 4,894ft 15.9s 14s
OK Contrail J800 8.03lb 153ft/s 753ft/s 49.9G 4,951ft 15.9s 15s
OK Contrail J345 7.96lb 98ft/s 680ft/s 23.5G 5,030ft 16.5s 14s
OK Loki J650 8.02lb 104ft/s 810ft/s 25.6G 5,096ft 16.0s 15s
OK Contrail J222 7.80lb 74ft/s 622ft/s 14.6G 5,112ft 17.3s 13s
OK Cesaroni J150 7.60lb 57ft/s 592ft/s 8.6G 5,345ft 18.3s 12s
OK AeroTech J825 7.43lb 130ft/s 907ft/s 34.6G 5,360ft 16.1s 15s
OK Cesaroni J394 7.57lb 76ft/s 820ft/s 12.8G 5,442ft 16.8s 14s
OK Cesaroni J595 7.41lb 110ft/s 877ft/s 26.6G 5,511ft 16.4s 15s
OK Cesaroni J600 7.50lb 102ft/s 894ft/s 20.7G 5,543ft 16.5s 15s
OK Cesaroni J453 7.63lb 98ft/s 842ft/s 20.4G 5,624ft 16.8s 14s
OK Cesaroni J420 7.43lb 97ft/s 832ft/s 22.7G 5,639ft 16.8s 14s
OK AeroTech J570 7.49lb 128ft/s 861ft/s 33.6G 5,691ft 16.6s 15s
OK Cesaroni J530 7.65lb 106ft/s 925ft/s 22.7G 6,094ft 17.1s 15s
OK AeroTech J510 7.88lb 115ft/s 937ft/s 28.6G 6,298ft 17.3s 15s
OK Loki J1000 8.02lb 142ft/s 1,048ft/s 38.3G 6,411ft 17.2s 16s
OK Loki J1026 8.08lb 127ft/s 1,095ft/s 33.4G 6,636ft 17.4s 16s
OK Loki K1127 8.08lb 134ft/s 1,085ft/s 38.5G 6,673ft 17.4s 16s
OK Loki K627 8.22lb 117ft/s 1,138ft/s 26.1G 7,771ft 18.7s 16s

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 (160ft)
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 (33ft/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 (41ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (32ft/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 (23ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (169ft)
failedG AeroTech H73 speed at end of launch guide too slow (31ft/s)
failedG Loki H100 speed at end of launch guide too slow (44ft/s)
failedG AeroTech H123 speed at end of launch guide too slow (47ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (43ft/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 (45ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (46ft/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 (41ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (45ft/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 (47ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (23ft/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 (47ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (44ft/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.)

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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