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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 141 motors that fit and appear to have enough thrust (627 motors didn't fit, 37 motors failed safety checks). 178 motor had thrust curves available and 363 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 Superbatray XL
Owner: Louie Berlin
Body Diameter: 4.00in
Dry Weight: 5.50lb
MMT Diameter: 38.0mm
MMT Length: 38.00in
CD: 1.00

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 AeroTech G339 5.90lb 82ft/s 126ft/s 13.3G 238ft 3.9s 4s
OK Contrail G123 6.63lb 54ft/s 118ft/s 11.1G 277ft 4.4s 3s
OK Cesaroni G185 5.92lb 57ft/s 133ft/s 6.8G 280ft 4.4s 4s
OK Contrail G100 6.63lb 50ft/s 115ft/s 5.2G 285ft 4.6s 3s
OK Contrail H300 6.85lb 88ft/s 150ft/s 22.5G 359ft 4.8s 4s
OK Contrail H222 6.65lb 77ft/s 148ft/s 21.9G 360ft 4.8s 4s
OK Contrail H303 6.80lb 95ft/s 161ft/s 24.7G 401ft 5.0s 4s
OK Contrail H211 6.82lb 87ft/s 183ft/s 19.8G 536ft 5.8s 5s
OK Contrail H121 6.85lb 53ft/s 176ft/s 7.7G 585ft 6.4s 5s
warningsW AeroTech H283 6.04lb 76ft/s 211ft/s 11.4G 591ft 6.0s 5s
OK Contrail H246 6.82lb 82ft/s 201ft/s 16.5G 600ft 6.1s 5s
OK AeroTech H148 6.18lb 55ft/s 195ft/s 6.0G 615ft 6.5s 5s
OK AeroTech H130 6.02lb 64ft/s 190ft/s 8.7G 629ft 6.4s 5s
OK Contrail H141 6.85lb 62ft/s 199ft/s 7.7G 662ft 6.6s 5s
OK AeroTech H669 6.06lb 117ft/s 252ft/s 40.1G 699ft 6.3s 6s
OK Contrail H248 7.25lb 79ft/s 219ft/s 20.5G 715ft 6.6s 6s
OK Loki H125 6.25lb 56ft/s 203ft/s 6.4G 726ft 7.0s 5s
OK Loki H144 6.24lb 62ft/s 213ft/s 7.9G 731ft 6.9s 5s
OK AeroTech H219 6.08lb 68ft/s 238ft/s 9.8G 746ft 6.8s 6s
OK AeroTech H242 6.08lb 62ft/s 238ft/s 7.8G 783ft 7.1s 6s
OK Loki H160 6.24lb 69ft/s 233ft/s 9.4G 809ft 7.1s 6s
OK Cesaroni H400 6.13lb 83ft/s 279ft/s 15.2G 840ft 7.0s 6s
OK Contrail H277 7.07lb 86ft/s 253ft/s 23.1G 872ft 7.3s 6s
OK Contrail H340 7.30lb 88ft/s 263ft/s 26.6G 900ft 7.3s 6s
OK Cesaroni H152 6.16lb 53ft/s 252ft/s 6.8G 913ft 7.8s 6s
OK AeroTech H178 6.21lb 51ft/s 267ft/s 6.7G 936ft 7.8s 6s
OK Cesaroni H225 5.93lb 65ft/s 283ft/s 8.8G 937ft 7.5s 6s
OK Contrail I500 7.26lb 116ft/s 300ft/s 30.5G 1,022ft 7.5s 7s
OK AeroTech I218 6.32lb 67ft/s 297ft/s 9.2G 1,074ft 8.0s 7s
OK AeroTech H170 6.23lb 54ft/s 284ft/s 6.3G 1,078ft 8.3s 6s
OK AeroTech H550 6.21lb 107ft/s 341ft/s 22.4G 1,083ft 7.7s 7s
OK AeroTech H550 6.20lb 108ft/s 344ft/s 22.5G 1,087ft 7.7s 7s
warningsW Cesaroni H565 6.30lb 101ft/s 347ft/s 21.3G 1,098ft 7.7s 7s
OK AeroTech I180 6.35lb 78ft/s 281ft/s 11.8G 1,110ft 8.1s 6s
OK AeroTech H999 6.23lb 140ft/s 362ft/s 57.0G 1,110ft 7.6s 7s
OK AeroTech I161 6.31lb 57ft/s 283ft/s 6.8G 1,129ft 8.5s 6s
OK Contrail I221 7.07lb 82ft/s 285ft/s 14.3G 1,136ft 8.2s 6s
OK Cesaroni I180 6.37lb 53ft/s 305ft/s 6.3G 1,148ft 8.5s 7s
OK AeroTech I140 6.28lb 51ft/s 275ft/s 5.4G 1,156ft 8.7s 6s
OK AeroTech I225 6.57lb 59ft/s 319ft/s 8.3G 1,216ft 8.6s 7s
OK AeroTech I245 6.30lb 83ft/s 325ft/s 13.7G 1,218ft 8.3s 7s
OK AeroTech I357 6.26lb 80ft/s 339ft/s 12.6G 1,226ft 8.3s 7s
OK Cesaroni I212 6.55lb 57ft/s 329ft/s 7.5G 1,235ft 8.7s 7s
OK Cesaroni I566 6.35lb 98ft/s 397ft/s 20.7G 1,295ft 8.3s 8s
OK Contrail I400 7.54lb 100ft/s 363ft/s 25.5G 1,364ft 8.6s 8s
OK Contrail I290 7.45lb 74ft/s 341ft/s 14.1G 1,369ft 8.9s 7s
OK Contrail I747 7.35lb 158ft/s 398ft/s 57.1G 1,376ft 8.4s 8s
OK Cesaroni I195 6.42lb 58ft/s 344ft/s 7.3G 1,381ft 9.1s 7s
OK Cesaroni I345 6.37lb 77ft/s 394ft/s 12.8G 1,405ft 8.8s 8s
OK Contrail I250 7.10lb 78ft/s 344ft/s 17.1G 1,415ft 8.9s 7s
OK Cesaroni I170 6.36lb 57ft/s 351ft/s 6.9G 1,426ft 9.3s 7s
OK AeroTech I285 6.59lb 74ft/s 380ft/s 11.8G 1,431ft 8.9s 7s
OK Cesaroni I175 6.46lb 52ft/s 344ft/s 5.6G 1,434ft 9.4s 7s
OK Cesaroni I800 6.51lb 117ft/s 446ft/s 28.9G 1,445ft 8.6s 8s
OK Cesaroni I236 6.38lb 65ft/s 373ft/s 9.9G 1,465ft 9.1s 7s
OK AeroTech I1299 6.43lb 158ft/s 468ft/s 51.8G 1,478ft 8.5s 8s
OK Cesaroni I223 6.59lb 60ft/s 380ft/s 7.7G 1,512ft 9.4s 7s
OK AeroTech I305 6.78lb 77ft/s 392ft/s 12.5G 1,513ft 9.0s 7s
OK AeroTech I211 6.50lb 69ft/s 363ft/s 10.1G 1,515ft 9.3s 7s
OK AeroTech I300 6.47lb 80ft/s 399ft/s 15.2G 1,531ft 9.1s 7s
OK AeroTech I195 6.76lb 72ft/s 363ft/s 11.0G 1,533ft 9.4s 7s
OK Contrail I210 7.42lb 80ft/s 340ft/s 13.2G 1,635ft 9.8s 7s
OK Loki I316 6.69lb 87ft/s 416ft/s 15.8G 1,638ft 9.2s 8s
warningsW Loki I110 6.80lb 48ft/s 323ft/s 7.7G 1,677ft 10.4s 6s
OK Cesaroni I287 6.83lb 67ft/s 430ft/s 10.0G 1,681ft 9.6s 8s
OK Loki I210 6.69lb 77ft/s 392ft/s 13.9G 1,717ft 9.6s 7s
OK Loki I405 6.70lb 113ft/s 455ft/s 26.0G 1,719ft 9.3s 8s
OK Cesaroni I285 6.62lb 72ft/s 443ft/s 11.0G 1,780ft 9.8s 8s
OK Loki I430 6.69lb 85ft/s 493ft/s 16.9G 1,808ft 9.6s 8s
OK Cesaroni I255 6.64lb 69ft/s 438ft/s 9.7G 1,808ft 9.9s 8s
OK Loki I377 6.73lb 100ft/s 460ft/s 21.0G 1,809ft 9.6s 8s
OK Contrail I155 7.10lb 55ft/s 365ft/s 6.0G 1,849ft 10.7s 7s
OK AeroTech I366 6.72lb 88ft/s 478ft/s 15.3G 1,851ft 9.7s 8s
OK AeroTech I327 6.88lb 79ft/s 472ft/s 13.1G 1,851ft 9.8s 8s
OK AMW I297 6.80lb 73ft/s 464ft/s 11.3G 1,859ft 9.9s 8s
OK Cesaroni I470 6.59lb 93ft/s 517ft/s 18.0G 1,864ft 9.6s 8s
OK AeroTech I364 6.99lb 77ft/s 468ft/s 12.2G 1,865ft 9.8s 8s
OK Cesaroni I303 6.60lb 74ft/s 469ft/s 13.1G 1,885ft 9.9s 8s
OK AeroTech I280 6.86lb 69ft/s 468ft/s 10.1G 1,918ft 10.1s 8s
OK Cesaroni I242 6.71lb 64ft/s 449ft/s 8.6G 1,921ft 10.3s 8s
OK KBA I550 7.07lb 91ft/s 577ft/s 20.4G 1,932ft 9.5s 8s
OK Contrail I307 7.29lb 100ft/s 454ft/s 20.8G 1,943ft 10.0s 8s
OK KBA I301 7.10lb 72ft/s 497ft/s 12.0G 1,957ft 10.0s 8s
OK AeroTech I435 6.64lb 107ft/s 523ft/s 24.6G 1,960ft 9.7s 8s
OK Contrail I727 7.55lb 150ft/s 528ft/s 48.5G 1,984ft 9.7s 9s
OK Cesaroni I125 6.93lb 55ft/s 350ft/s 7.7G 1,997ft 11.3s 7s
OK Cesaroni I350 7.22lb 75ft/s 501ft/s 11.5G 1,999ft 10.2s 8s
OK AeroTech I284 6.72lb 86ft/s 495ft/s 15.2G 2,017ft 10.0s 8s
OK AeroTech I500 6.77lb 91ft/s 567ft/s 18.1G 2,099ft 10.0s 9s
warningsW Cesaroni I540 6.82lb 99ft/s 589ft/s 19.8G 2,123ft 10.0s 9s
OK AeroTech I600 6.83lb 112ft/s 586ft/s 26.0G 2,131ft 10.0s 9s
OK KBA J520 7.09lb 91ft/s 573ft/s 21.6G 2,137ft 10.2s 9s
OK Loki J396 7.16lb 80ft/s 548ft/s 15.6G 2,154ft 10.3s 9s
OK KBA J740 7.10lb 112ft/s 626ft/s 28.2G 2,168ft 10.0s 9s
OK AeroTech I350 6.86lb 83ft/s 561ft/s 14.8G 2,169ft 10.3s 9s
OK AeroTech J420 6.93lb 90ft/s 557ft/s 17.1G 2,170ft 10.3s 9s
OK AeroTech J350 6.97lb 106ft/s 559ft/s 25.6G 2,185ft 10.1s 9s
OK Cesaroni J335 6.88lb 81ft/s 536ft/s 12.4G 2,190ft 10.5s 8s
OK Cesaroni J381 7.02lb 84ft/s 551ft/s 15.2G 2,192ft 10.4s 9s
OK AeroTech J340 6.77lb 88ft/s 546ft/s 18.9G 2,202ft 10.3s 8s
OK Cesaroni I216 6.82lb 68ft/s 469ft/s 10.2G 2,205ft 10.9s 8s
OK Cesaroni J285 6.81lb 72ft/s 520ft/s 10.9G 2,216ft 10.6s 8s
OK Cesaroni J357 6.82lb 83ft/s 556ft/s 15.9G 2,222ft 10.4s 9s
OK Contrail J150 7.46lb 59ft/s 396ft/s 7.0G 2,223ft 11.5s 7s
OK Cesaroni J270 6.94lb 66ft/s 512ft/s 8.5G 2,228ft 10.8s 8s
OK Cesaroni J316 6.84lb 79ft/s 526ft/s 13.4G 2,232ft 10.6s 8s
OK AeroTech J520 7.17lb 119ft/s 569ft/s 27.1G 2,235ft 10.2s 9s
OK AeroTech J425 6.89lb 78ft/s 594ft/s 13.4G 2,266ft 10.5s 9s
OK Contrail J246 7.40lb 86ft/s 459ft/s 14.9G 2,271ft 11.0s 8s
OK Cesaroni J400 7.05lb 84ft/s 580ft/s 13.9G 2,309ft 10.5s 9s
OK Cesaroni J290 6.95lb 76ft/s 532ft/s 11.7G 2,313ft 10.8s 8s
OK Loki J474 7.17lb 120ft/s 565ft/s 36.5G 2,317ft 10.4s 9s
OK AeroTech J500 6.94lb 110ft/s 620ft/s 24.6G 2,363ft 10.4s 9s
OK AeroTech J270 6.92lb 71ft/s 534ft/s 10.6G 2,372ft 10.9s 8s
OK Loki J528 7.14lb 116ft/s 647ft/s 31.1G 2,385ft 10.3s 9s
OK AeroTech J575 7.52lb 116ft/s 659ft/s 25.1G 2,449ft 10.4s 9s
OK Loki J326 7.19lb 100ft/s 536ft/s 29.5G 2,463ft 10.9s 8s
OK AeroTech J435 6.88lb 101ft/s 641ft/s 21.5G 2,514ft 10.7s 9s
OK Cesaroni J410 7.12lb 87ft/s 621ft/s 15.1G 2,516ft 10.9s 9s
OK Cesaroni J330 7.05lb 82ft/s 590ft/s 13.7G 2,519ft 11.0s 9s
OK Loki J712 7.16lb 111ft/s 702ft/s 26.6G 2,522ft 10.5s 9s
OK Cesaroni J425 7.04lb 96ft/s 632ft/s 20.4G 2,532ft 10.8s 9s
OK Cesaroni J520 7.37lb 95ft/s 684ft/s 19.0G 2,635ft 10.9s 9s
OK Loki J320 7.16lb 81ft/s 594ft/s 15.6G 2,646ft 11.3s 9s
OK Cesaroni J354 7.22lb 84ft/s 602ft/s 15.2G 2,648ft 11.2s 9s
OK Cesaroni J580 7.80lb 96ft/s 701ft/s 18.3G 2,710ft 11.0s 9s
OK Loki J650 8.02lb 104ft/s 728ft/s 22.0G 2,800ft 11.1s 10s
OK AeroTech J825 7.43lb 130ft/s 818ft/s 34.6G 2,838ft 10.8s 10s
OK Cesaroni J595 7.41lb 109ft/s 756ft/s 26.6G 2,947ft 11.2s 9s
OK Cesaroni J600 7.50lb 102ft/s 782ft/s 20.7G 2,959ft 11.2s 10s
OK Cesaroni J394 7.57lb 76ft/s 693ft/s 12.2G 2,995ft 11.7s 9s
OK AeroTech J570 7.49lb 127ft/s 731ft/s 33.6G 3,051ft 11.3s 9s
OK Cesaroni J453 7.63lb 98ft/s 714ft/s 20.4G 3,056ft 11.6s 9s
OK Cesaroni J420 7.43lb 97ft/s 707ft/s 22.7G 3,069ft 11.6s 9s
OK Cesaroni J150 7.60lb 57ft/s 461ft/s 8.6G 3,205ft 13.7s 7s
OK Cesaroni J530 7.65lb 106ft/s 787ft/s 22.6G 3,230ft 11.6s 10s
OK Loki J1000 8.02lb 141ft/s 936ft/s 38.3G 3,302ft 11.4s 10s
OK AeroTech J510 7.88lb 115ft/s 785ft/s 28.6G 3,348ft 11.7s 9s
OK Loki J1026 8.08lb 127ft/s 972ft/s 32.2G 3,395ft 11.5s 10s
OK Loki K1127 8.08lb 134ft/s 958ft/s 37.2G 3,409ft 11.5s 10s
OK Loki K627 8.22lb 117ft/s 932ft/s 26.1G 3,991ft 12.4s 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
failedA Contrail G130 rocket doesn't reach a safe altitude (153ft)
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)
failedA Contrail G234 rocket doesn't reach a safe altitude (211ft)
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 (160ft)
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 (46ft/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 (46ft/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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