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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 143 motors that fit and appear to have enough thrust (649 motors didn't fit, 10 motors failed safety checks). 153 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:   BT V2
Owner: KenRico
Body Diameter: 4.00in
Dry Weight: 45.0oz
MMT Diameter: 38.0mm
MMT Length: 20.00in
CD: 0.05

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 G300 64.2oz 138ft/s 174ft/s 44.7G 489ft 5.6s 5s
OK Contrail G130 63.2oz 76ft/s 163ft/s 29.5G 496ft 5.8s 5s
OK Contrail G234 64.2oz 121ft/s 199ft/s 29.6G 672ft 6.6s 6s
OK Loki G69 53.5oz 53ft/s 193ft/s 5.6G 743ft 7.4s 6s
OK AeroTech G67 52.1oz 51ft/s 201ft/s 5.3G 774ft 7.7s 6s
OK Loki G70 53.5oz 54ft/s 206ft/s 5.8G 847ft 7.9s 6s
OK Loki G80 54.0oz 58ft/s 214ft/s 6.5G 879ft 7.9s 6s
OK AeroTech G339 51.4oz 114ft/s 244ft/s 25.5G 931ft 7.7s 7s
OK Contrail G123 63.0oz 72ft/s 228ft/s 19.3G 944ft 8.0s 7s
OK Loki G94 53.5oz 61ft/s 228ft/s 7.9G 955ft 8.2s 7s
OK Contrail G100 63.0oz 69ft/s 227ft/s 9.4G 984ft 8.2s 7s
OK Loki G66 53.8oz 59ft/s 231ft/s 6.8G 1,090ft 9.0s 7s
OK Cesaroni G185 51.6oz 78ft/s 268ft/s 13.6G 1,144ft 8.7s 8s
OK AeroTech G69 52.1oz 48ft/s 247ft/s 5.1G 1,150ft 9.3s 7s
OK Contrail H300 66.6oz 132ft/s 266ft/s 37.9G 1,165ft 8.6s 8s
OK Cesaroni G60 52.3oz 49ft/s 246ft/s 4.9G 1,179ft 9.4s 7s
OK Contrail H222 63.3oz 107ft/s 269ft/s 37.5G 1,204ft 8.8s 8s
OK Cesaroni G78 51.9oz 49ft/s 264ft/s 8.0G 1,282ft 9.7s 8s
OK Cesaroni G115 51.9oz 62ft/s 280ft/s 8.1G 1,320ft 9.6s 8s
OK Contrail H303 65.8oz 140ft/s 287ft/s 41.7G 1,333ft 9.2s 9s
OK Contrail H246 66.1oz 114ft/s 365ft/s 28.0G 2,131ft 11.6s 11s
OK Loki H100 56.8oz 61ft/s 355ft/s 8.8G 2,210ft 12.3s 10s
OK Contrail H141 66.6oz 80ft/s 376ft/s 13.3G 2,419ft 12.6s 11s
warningsW AeroTech H283 53.7oz 104ft/s 415ft/s 21.7G 2,545ft 12.6s 12s
OK AeroTech H148 55.9oz 75ft/s 407ft/s 11.6G 2,638ft 13.2s 12s
OK AeroTech H130 53.4oz 88ft/s 411ft/s 16.5G 2,767ft 13.4s 12s
OK Loki H90 56.8oz 64ft/s 407ft/s 8.3G 2,951ft 14.3s 12s
OK AeroTech H123 54.7oz 65ft/s 415ft/s 8.8G 2,989ft 14.2s 12s
OK AeroTech H100 54.2oz 60ft/s 422ft/s 7.8G 3,010ft 14.4s 12s
OK AeroTech H669 53.9oz 159ft/s 475ft/s 72.9G 3,098ft 13.7s 13s
OK Cesaroni H123 55.5oz 59ft/s 445ft/s 9.0G 3,125ft 14.5s 13s
OK Loki H125 57.1oz 77ft/s 434ft/s 11.9G 3,127ft 14.4s 12s
OK Loki H144 56.9oz 85ft/s 444ft/s 14.7G 3,143ft 14.2s 13s
OK Cesaroni H143 57.2oz 62ft/s 457ft/s 9.8G 3,220ft 14.7s 13s
OK AeroTech H219 54.2oz 95ft/s 483ft/s 18.5G 3,386ft 14.6s 14s
OK AeroTech H112 58.4oz 52ft/s 442ft/s 6.0G 3,455ft 15.7s 12s
OK Loki H160 56.8oz 91ft/s 480ft/s 17.3G 3,544ft 15.0s 14s
OK AeroTech H242 54.3oz 85ft/s 491ft/s 14.9G 3,569ft 15.1s 14s
OK Cesaroni H120 55.4oz 63ft/s 492ft/s 8.7G 3,778ft 15.9s 14s
OK Cesaroni H110 56.5oz 55ft/s 488ft/s 7.2G 3,826ft 16.2s 14s
OK Cesaroni H400 55.0oz 110ft/s 536ft/s 28.9G 3,883ft 15.4s 15s
OK Cesaroni H125 55.3oz 62ft/s 508ft/s 9.3G 3,949ft 16.2s 14s
OK Cesaroni H100 56.5oz 58ft/s 514ft/s 6.5G 4,216ft 17.0s 14s
OK Cesaroni H152 55.5oz 72ft/s 538ft/s 12.8G 4,283ft 16.6s 15s
OK AeroTech H178 56.4oz 69ft/s 556ft/s 13.4G 4,420ft 16.8s 15s
OK Cesaroni H225 51.8oz 90ft/s 590ft/s 16.9G 4,672ft 17.0s 16s
OK AeroTech I218 58.1oz 92ft/s 606ft/s 16.9G 5,085ft 17.7s 16s
OK AeroTech I180 58.6oz 106ft/s 593ft/s 21.4G 5,173ft 17.9s 16s
OK AeroTech H170 56.6oz 74ft/s 605ft/s 12.4G 5,205ft 18.1s 16s
OK AeroTech H550 56.4oz 142ft/s 648ft/s 41.0G 5,289ft 17.7s 17s
warningsW Cesaroni H565 57.8oz 134ft/s 653ft/s 42.4G 5,348ft 17.8s 17s
OK AeroTech H550 56.1oz 143ft/s 657ft/s 41.5G 5,380ft 17.8s 17s
OK AeroTech I161 57.9oz 78ft/s 612ft/s 12.8G 5,420ft 18.5s 16s
OK AeroTech H999 56.7oz 185ft/s 670ft/s 101.2G 5,485ft 17.8s 18s
OK Cesaroni I180 58.9oz 69ft/s 632ft/s 12.8G 5,537ft 18.7s 17s
OK AeroTech I140 57.6oz 69ft/s 619ft/s 10.4G 5,619ft 19.0s 17s
OK AeroTech I225 62.1oz 76ft/s 650ft/s 16.0G 5,781ft 18.9s 17s
OK Cesaroni I212 61.8oz 74ft/s 669ft/s 14.9G 5,960ft 19.3s 18s
OK AeroTech I245 57.9oz 104ft/s 670ft/s 25.1G 5,984ft 19.0s 18s
OK AeroTech I154 62.4oz 62ft/s 631ft/s 8.8G 6,079ft 20.0s 17s
OK AeroTech I357 57.1oz 107ft/s 687ft/s 23.0G 6,117ft 19.1s 18s
OK Cesaroni I566 58.6oz 132ft/s 750ft/s 41.1G 6,644ft 19.6s 19s
OK Cesaroni I195 59.7oz 78ft/s 730ft/s 13.4G 6,952ft 20.7s 19s
OK AeroTech I285 62.4oz 97ft/s 755ft/s 21.1G 7,145ft 20.7s 19s
OK Cesaroni I175 60.4oz 71ft/s 741ft/s 11.1G 7,238ft 21.2s 19s
OK Cesaroni I345 58.9oz 103ft/s 779ft/s 22.8G 7,266ft 20.7s 20s
OK Cesaroni I170 58.8oz 77ft/s 749ft/s 13.2G 7,294ft 21.2s 19s
OK AeroTech I195 65.2oz 94ft/s 753ft/s 19.2G 7,521ft 21.3s 19s
OK AeroTech I305 65.5oz 101ft/s 775ft/s 22.6G 7,526ft 21.1s 20s
OK Cesaroni I800 61.1oz 149ft/s 822ft/s 57.6G 7,588ft 20.8s 20s
OK Cesaroni I236 59.1oz 89ft/s 783ft/s 17.9G 7,596ft 21.3s 20s
OK AeroTech I211 61.0oz 92ft/s 771ft/s 18.0G 7,707ft 21.5s 19s
OK Cesaroni I223 62.4oz 80ft/s 786ft/s 14.8G 7,714ft 21.6s 20s
OK AeroTech I1299 59.9oz 209ft/s 852ft/s 94.0G 7,926ft 21.1s 21s
OK AeroTech I300 60.6oz 110ft/s 809ft/s 26.7G 7,936ft 21.5s 20s
warningsW Loki I110 65.8oz 66ft/s 740ft/s 13.4G 8,176ft 22.8s 19s
OK Loki I316 64.0oz 116ft/s 833ft/s 27.6G 8,403ft 22.1s 21s
OK AeroTech I59 62.2oz 62ft/s 608ft/s 9.0G 8,445ft 24.5s 16s
OK Cesaroni I287 66.3oz 87ft/s 858ft/s 19.3G 8,690ft 22.6s 21s
OK Loki I210 64.0oz 102ft/s 828ft/s 23.9G 8,770ft 22.7s 20s
OK Loki I405 64.2oz 143ft/s 893ft/s 44.2G 9,096ft 22.7s 22s
OK Cesaroni I285 62.8oz 95ft/s 921ft/s 19.2G 9,641ft 23.7s 22s
OK Loki I377 64.8oz 131ft/s 922ft/s 35.6G 9,651ft 23.4s 22s
OK Cesaroni I255 63.2oz 89ft/s 923ft/s 17.3G 9,753ft 23.8s 22s
OK Loki I430 64.0oz 115ft/s 956ft/s 28.9G 9,857ft 23.6s 22s
OK AeroTech I327 67.2oz 102ft/s 939ft/s 22.2G 9,873ft 23.8s 22s
OK AeroTech I364 68.9oz 98ft/s 939ft/s 22.1G 9,900ft 23.8s 22s
OK AMW I297 65.8oz 98ft/s 940ft/s 19.4G 9,972ft 23.9s 22s
OK Cesaroni I125 67.8oz 76ft/s 838ft/s 13.2G 10,063ft 25.1s 21s
OK AeroTech I366 64.6oz 114ft/s 965ft/s 26.4G 10,122ft 23.9s 22s
OK AeroTech I280 66.7oz 92ft/s 968ft/s 17.8G 10,384ft 24.5s 23s
OK Cesaroni I242 64.4oz 86ft/s 961ft/s 15.0G 10,427ft 24.7s 22s
OK Cesaroni I303 62.6oz 100ft/s 976ft/s 22.7G 10,432ft 24.4s 23s
OK Cesaroni I470 62.5oz 123ft/s 1,013ft/s 31.1G 10,530ft 24.2s 23s
OK Cesaroni I350 72.6oz 98ft/s 977ft/s 20.5G 10,569ft 24.7s 23s
OK KBA I301 70.6oz 89ft/s 1,053ft/s 21.2G 10,923ft 24.6s 23s
OK AeroTech I435 63.3oz 140ft/s 1,042ft/s 42.1G 11,124ft 24.7s 23s
OK AeroTech I284 64.6oz 111ft/s 1,030ft/s 26.7G 11,284ft 25.1s 23s
OK KBA I550 70.1oz 125ft/s 1,135ft/s 42.1G 11,337ft 24.5s 23s
OK Cesaroni J94 68.3oz 58ft/s 877ft/s 7.6G 11,768ft 27.8s 21s
OK Loki J396 71.5oz 100ft/s 1,074ft/s 28.4G 11,947ft 25.8s 24s
OK KBA J520 70.5oz 115ft/s 1,088ft/s 35.4G 11,975ft 25.8s 25s
OK Cesaroni I216 66.2oz 89ft/s 1,035ft/s 17.4G 12,161ft 26.4s 23s
OK AeroTech I500 65.3oz 118ft/s 1,121ft/s 32.8G 12,200ft 25.8s 24s
OK Cesaroni J381 69.3oz 110ft/s 1,109ft/s 25.3G 12,386ft 26.1s 24s
OK AeroTech J420 67.9oz 116ft/s 1,120ft/s 28.9G 12,432ft 26.1s 25s
OK Cesaroni J335 67.1oz 104ft/s 1,107ft/s 21.4G 12,436ft 26.3s 24s
OK AeroTech I600 66.2oz 151ft/s 1,143ft/s 43.7G 12,437ft 25.9s 25s
OK AeroTech J350 68.5oz 137ft/s 1,117ft/s 42.3G 12,441ft 26.0s 24s
warningsW Cesaroni I540 66.1oz 125ft/s 1,148ft/s 35.3G 12,447ft 25.9s 25s
OK KBA J740 70.5oz 149ft/s 1,136ft/s 53.2G 12,453ft 26.0s 25s
OK Cesaroni J270 68.1oz 86ft/s 1,098ft/s 16.0G 12,527ft 26.6s 24s
OK AeroTech J520 71.7oz 154ft/s 1,112ft/s 44.2G 12,557ft 26.2s 25s
OK AeroTech I350 66.7oz 104ft/s 1,139ft/s 26.6G 12,569ft 26.3s 25s
OK Cesaroni J316 66.4oz 102ft/s 1,096ft/s 22.7G 12,610ft 26.5s 24s
OK Cesaroni J285 66.0oz 95ft/s 1,106ft/s 20.0G 12,641ft 26.6s 24s
OK AeroTech J340 65.4oz 118ft/s 1,134ft/s 32.1G 12,670ft 26.2s 24s
OK Cesaroni J357 66.2oz 112ft/s 1,152ft/s 27.0G 12,899ft 26.6s 25s
OK Cesaroni J290 68.3oz 100ft/s 1,143ft/s 19.7G 13,191ft 27.1s 25s
OK Cesaroni J400 69.8oz 107ft/s 1,180ft/s 25.7G 13,375ft 27.0s 25s
OK AeroTech J425 67.3oz 98ft/s 1,204ft/s 26.5G 13,402ft 27.0s 25s
OK AeroTech J270 67.6oz 94ft/s 1,168ft/s 19.0G 13,683ft 27.5s 25s
OK Loki J528 71.3oz 152ft/s 1,236ft/s 50.6G 14,086ft 27.3s 26s
OK AeroTech J500 68.1oz 137ft/s 1,250ft/s 41.0G 14,134ft 27.3s 26s
OK AeroTech J575 77.2oz 145ft/s 1,252ft/s 42.2G 14,281ft 27.5s 26s
OK Cesaroni J330 69.8oz 108ft/s 1,248ft/s 22.8G 14,815ft 28.3s 26s
OK Cesaroni J410 70.9oz 112ft/s 1,280ft/s 25.0G 14,925ft 28.3s 26s
OK Cesaroni J425 69.7oz 124ft/s 1,295ft/s 33.6G 15,159ft 28.3s 26s
OK Loki J712 71.5oz 143ft/s 1,337ft/s 43.4G 15,369ft 28.3s 27s
OK AeroTech J435 67.0oz 127ft/s 1,334ft/s 36.1G 15,387ft 28.4s 27s
OK Loki J320 71.5oz 107ft/s 1,263ft/s 25.6G 15,418ft 28.9s 26s
OK Cesaroni J354 72.4oz 111ft/s 1,297ft/s 24.9G 15,553ft 28.8s 26s
OK Cesaroni J520 75.0oz 118ft/s 1,351ft/s 31.8G 15,833ft 28.9s 27s
OK Cesaroni J580 81.8oz 116ft/s 1,343ft/s 34.5G 15,979ft 29.1s 28s
OK Cesaroni J150 78.5oz 73ft/s 1,181ft/s 13.9G 17,211ft 31.7s 25s
OK AeroTech J825 75.9oz 158ft/s 1,562ft/s 54.9G 18,172ft 30.2s 29s
OK Cesaroni J394 78.1oz 98ft/s 1,480ft/s 25.0G 18,174ft 30.8s 28s
OK Cesaroni J595 75.5oz 142ft/s 1,558ft/s 42.4G 18,623ft 30.6s 29s
OK Cesaroni J453 79.0oz 119ft/s 1,509ft/s 32.2G 18,667ft 30.9s 29s
OK Cesaroni J600 77.0oz 132ft/s 1,570ft/s 37.3G 18,698ft 30.7s 29s
OK Cesaroni J420 75.8oz 126ft/s 1,493ft/s 36.2G 18,803ft 31.0s 28s
OK AeroTech J570 76.8oz 156ft/s 1,539ft/s 53.1G 18,981ft 30.8s 29s
OK Cesaroni J530 79.5oz 133ft/s 1,650ft/s 35.7G 20,464ft 31.9s 30s

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 G61 speed at end of launch guide too slow (48ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (46ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (38ft/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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