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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 138 motors that fit and appear to have enough thrust (647 motors didn't fit, 14 motors failed safety checks). 152 motor had thrust curves available and 318 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:   Black Brant VB
Owner: John Grove
Body Diameter: 3.00in
Dry Weight: 52.0oz
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 G300 71.2oz 127ft/s 155ft/s 40.2G 359ft 4.7s 4s
OK Contrail G130 70.2oz 71ft/s 141ft/s 26.5G 360ft 4.9s 4s
OK Contrail G234 71.2oz 113ft/s 175ft/s 26.5G 474ft 5.4s 5s
OK Loki G69 60.5oz 49ft/s 159ft/s 4.8G 492ft 6.0s 4s
OK Loki G70 60.5oz 51ft/s 169ft/s 5.0G 551ft 6.4s 5s
OK Loki G80 61.0oz 54ft/s 178ft/s 5.6G 572ft 6.3s 5s
OK AeroTech G339 58.4oz 107ft/s 211ft/s 22.2G 589ft 6.0s 6s
OK Loki G94 60.5oz 57ft/s 190ft/s 6.8G 612ft 6.5s 5s
OK Contrail G123 70.0oz 70ft/s 196ft/s 17.3G 638ft 6.5s 5s
OK Contrail G100 70.0oz 64ft/s 193ft/s 8.4G 661ft 6.7s 5s
OK Loki G66 60.8oz 54ft/s 188ft/s 5.9G 687ft 7.1s 5s
OK Cesaroni G185 58.6oz 73ft/s 229ft/s 11.7G 699ft 6.6s 6s
OK Contrail H300 73.6oz 122ft/s 234ft/s 34.0G 771ft 6.8s 6s
OK Contrail H222 70.3oz 99ft/s 235ft/s 33.7G 788ft 6.9s 6s
OK Cesaroni G115 58.9oz 58ft/s 233ft/s 7.0G 791ft 7.3s 6s
OK Contrail H303 72.8oz 129ft/s 251ft/s 37.5G 856ft 7.1s 7s
OK Loki H100 63.8oz 58ft/s 287ft/s 7.2G 1,222ft 8.8s 7s
OK Contrail H246 73.1oz 103ft/s 314ft/s 25.2G 1,245ft 8.5s 8s
warningsW AeroTech H283 60.7oz 95ft/s 351ft/s 18.9G 1,307ft 8.6s 8s
OK AeroTech H148 62.9oz 71ft/s 333ft/s 10.1G 1,375ft 9.1s 8s
OK Contrail H141 73.6oz 75ft/s 318ft/s 12.0G 1,384ft 9.2s 7s
OK AeroTech H130 60.4oz 86ft/s 328ft/s 14.5G 1,401ft 9.0s 7s
OK AeroTech H669 60.9oz 149ft/s 411ft/s 64.4G 1,488ft 8.9s 9s
OK AeroTech H123 61.7oz 61ft/s 324ft/s 7.7G 1,506ft 9.7s 7s
OK AeroTech H100 61.2oz 56ft/s 329ft/s 6.6G 1,511ft 9.8s 7s
OK Loki H90 63.8oz 60ft/s 316ft/s 7.3G 1,527ft 9.9s 7s
OK Cesaroni H123 62.5oz 56ft/s 361ft/s 7.5G 1,554ft 9.8s 8s
OK Loki H144 63.9oz 83ft/s 358ft/s 13.0G 1,570ft 9.5s 8s
OK Loki H125 64.1oz 71ft/s 345ft/s 10.5G 1,577ft 9.8s 8s
OK Cesaroni H143 64.2oz 59ft/s 372ft/s 8.1G 1,588ft 9.9s 8s
OK AeroTech H219 61.2oz 89ft/s 399ft/s 16.3G 1,597ft 9.4s 8s
OK AeroTech H242 61.3oz 80ft/s 401ft/s 13.0G 1,676ft 9.7s 8s
OK Loki H160 63.8oz 89ft/s 388ft/s 15.3G 1,703ft 9.8s 8s
OK AeroTech H112 65.4oz 49ft/s 337ft/s 5.1G 1,718ft 10.7s 7s
OK Cesaroni H400 62.0oz 106ft/s 457ft/s 24.9G 1,751ft 9.6s 9s
OK Cesaroni H120 62.4oz 59ft/s 388ft/s 7.5G 1,778ft 10.4s 8s
OK Cesaroni H110 63.5oz 52ft/s 382ft/s 6.0G 1,814ft 10.7s 8s
OK Cesaroni H125 62.3oz 58ft/s 404ft/s 7.7G 1,829ft 10.5s 8s
OK Cesaroni H152 62.5oz 69ft/s 427ft/s 11.2G 1,924ft 10.5s 9s
OK Cesaroni H100 63.5oz 54ft/s 393ft/s 5.7G 1,949ft 11.1s 8s
OK AeroTech H178 63.4oz 66ft/s 449ft/s 11.2G 1,951ft 10.5s 9s
OK Cesaroni H225 58.8oz 83ft/s 479ft/s 14.8G 1,954ft 10.2s 9s
OK AeroTech H550 63.4oz 132ft/s 550ft/s 36.0G 2,148ft 10.3s 10s
OK AeroTech H550 63.1oz 133ft/s 557ft/s 36.3G 2,150ft 10.3s 10s
OK AeroTech I218 65.1oz 86ft/s 488ft/s 14.8G 2,159ft 10.7s 9s
warningsW Cesaroni H565 64.8oz 131ft/s 558ft/s 34.6G 2,171ft 10.4s 10s
OK AeroTech H999 63.7oz 177ft/s 579ft/s 89.9G 2,184ft 10.3s 10s
OK AeroTech H170 63.6oz 71ft/s 475ft/s 10.5G 2,192ft 11.0s 9s
OK AeroTech I180 65.6oz 100ft/s 461ft/s 18.9G 2,211ft 10.8s 9s
OK AeroTech I161 64.9oz 73ft/s 472ft/s 11.1G 2,272ft 11.2s 9s
OK Cesaroni I180 65.9oz 67ft/s 504ft/s 10.4G 2,302ft 11.3s 9s
OK AeroTech I140 64.6oz 66ft/s 464ft/s 9.0G 2,343ft 11.5s 9s
OK AeroTech I225 69.1oz 74ft/s 518ft/s 13.4G 2,381ft 11.3s 9s
OK AeroTech I245 64.9oz 99ft/s 529ft/s 22.0G 2,382ft 11.0s 10s
OK AeroTech I357 64.1oz 101ft/s 552ft/s 20.3G 2,399ft 11.0s 10s
OK Cesaroni I212 68.8oz 72ft/s 536ft/s 12.2G 2,427ft 11.4s 10s
OK Cesaroni I566 65.6oz 123ft/s 637ft/s 33.2G 2,497ft 10.9s 10s
OK AeroTech I154 69.4oz 60ft/s 467ft/s 7.7G 2,564ft 12.3s 9s
OK Cesaroni I195 66.7oz 73ft/s 564ft/s 11.8G 2,684ft 11.9s 10s
OK Cesaroni I345 65.9oz 98ft/s 635ft/s 20.3G 2,690ft 11.5s 10s
OK AeroTech I285 69.4oz 93ft/s 606ft/s 18.6G 2,724ft 11.7s 10s
OK Cesaroni I800 68.1oz 147ft/s 705ft/s 46.4G 2,724ft 11.2s 11s
OK Cesaroni I170 65.8oz 72ft/s 577ft/s 11.3G 2,763ft 12.0s 10s
OK AeroTech I1299 66.9oz 195ft/s 737ft/s 81.8G 2,771ft 11.2s 11s
OK Cesaroni I175 67.4oz 68ft/s 565ft/s 9.3G 2,778ft 12.2s 10s
OK Cesaroni I236 66.1oz 83ft/s 607ft/s 15.9G 2,803ft 11.9s 10s
OK AeroTech I305 72.5oz 96ft/s 618ft/s 19.5G 2,823ft 11.7s 10s
OK AeroTech I211 68.0oz 86ft/s 587ft/s 16.0G 2,869ft 12.0s 10s
OK Cesaroni I223 69.4oz 75ft/s 613ft/s 12.1G 2,872ft 12.1s 10s
OK AeroTech I195 72.2oz 89ft/s 579ft/s 17.1G 2,882ft 12.1s 10s
OK AeroTech I300 67.6oz 101ft/s 639ft/s 23.8G 2,882ft 11.8s 10s
OK Loki I316 71.0oz 111ft/s 655ft/s 24.5G 3,040ft 12.0s 11s
OK Cesaroni I287 73.3oz 83ft/s 680ft/s 15.8G 3,113ft 12.3s 11s
OK Loki I405 71.2oz 139ft/s 712ft/s 39.7G 3,154ft 12.0s 11s
warningsW Loki I110 72.8oz 63ft/s 526ft/s 12.1G 3,180ft 13.2s 9s
OK Loki I210 71.0oz 97ft/s 622ft/s 21.4G 3,184ft 12.4s 10s
OK Cesaroni I285 69.8oz 90ft/s 707ft/s 17.2G 3,285ft 12.5s 11s
OK Loki I377 71.8oz 126ft/s 720ft/s 32.0G 3,308ft 12.3s 11s
OK Loki I430 71.0oz 110ft/s 775ft/s 25.9G 3,320ft 12.3s 11s
OK Cesaroni I255 70.2oz 84ft/s 700ft/s 15.3G 3,336ft 12.7s 11s
OK KBA I550 77.1oz 112ft/s 912ft/s 32.5G 3,354ft 11.9s 11s
OK AeroTech I327 74.2oz 98ft/s 739ft/s 20.0G 3,363ft 12.5s 11s
OK AeroTech I366 71.6oz 108ft/s 753ft/s 23.6G 3,371ft 12.4s 11s
OK AeroTech I364 75.9oz 94ft/s 732ft/s 18.9G 3,379ft 12.5s 11s
OK AMW I297 72.8oz 93ft/s 732ft/s 17.5G 3,389ft 12.6s 11s
OK Cesaroni I470 69.5oz 119ft/s 816ft/s 27.9G 3,396ft 12.3s 11s
OK KBA I301 77.6oz 85ft/s 787ft/s 18.3G 3,413ft 12.3s 10s
OK Cesaroni I303 69.6oz 94ft/s 746ft/s 20.3G 3,442ft 12.6s 11s
OK AeroTech I59 69.2oz 59ft/s 358ft/s 7.8G 3,477ft 15.4s 7s
OK AeroTech I280 73.7oz 88ft/s 741ft/s 15.5G 3,486ft 12.8s 11s
OK Cesaroni I242 71.4oz 80ft/s 718ft/s 13.4G 3,513ft 13.0s 11s
OK AeroTech I435 70.3oz 135ft/s 821ft/s 37.7G 3,529ft 12.4s 11s
OK Cesaroni I350 79.6oz 91ft/s 773ft/s 17.1G 3,597ft 13.0s 11s
OK AeroTech I284 71.6oz 105ft/s 780ft/s 23.5G 3,624ft 12.7s 11s
OK Cesaroni I125 74.8oz 71ft/s 567ft/s 11.9G 3,696ft 14.1s 10s
OK AeroTech I500 72.3oz 114ft/s 885ft/s 27.7G 3,748ft 12.7s 11s
warningsW Cesaroni I540 73.1oz 122ft/s 917ft/s 30.4G 3,781ft 12.7s 12s
OK AeroTech I600 73.2oz 135ft/s 909ft/s 39.4G 3,787ft 12.7s 12s
OK Loki J396 78.5oz 97ft/s 844ft/s 23.9G 3,846ft 13.1s 12s
OK AeroTech I350 73.7oz 100ft/s 878ft/s 22.9G 3,862ft 13.0s 11s
OK AeroTech J350 75.5oz 129ft/s 865ft/s 38.3G 3,864ft 12.9s 11s
OK AeroTech J420 74.9oz 110ft/s 866ft/s 25.9G 3,865ft 13.0s 11s
OK KBA J740 77.5oz 135ft/s 953ft/s 42.6G 3,869ft 12.8s 12s
OK Cesaroni J381 76.3oz 106ft/s 855ft/s 22.9G 3,885ft 13.1s 11s
OK AeroTech J340 72.4oz 114ft/s 856ft/s 28.9G 3,891ft 12.9s 11s
OK Cesaroni J335 74.1oz 99ft/s 840ft/s 19.0G 3,904ft 13.2s 11s
OK Cesaroni J357 73.2oz 100ft/s 872ft/s 24.3G 3,949ft 13.1s 11s
OK Cesaroni J285 73.0oz 91ft/s 818ft/s 17.0G 3,961ft 13.4s 11s
OK Cesaroni I216 73.2oz 84ft/s 742ft/s 15.7G 3,963ft 13.6s 11s
OK Cesaroni J270 75.1oz 81ft/s 808ft/s 13.3G 3,981ft 13.6s 11s
OK Cesaroni J316 73.4oz 98ft/s 823ft/s 20.4G 4,002ft 13.4s 11s
OK AeroTech J425 74.3oz 94ft/s 931ft/s 20.8G 4,018ft 13.2s 12s
OK AeroTech J520 79.2oz 143ft/s 909ft/s 45.8G 4,074ft 13.1s 12s
OK Cesaroni J400 76.8oz 103ft/s 899ft/s 21.4G 4,076ft 13.3s 12s
OK Cesaroni J290 75.3oz 95ft/s 835ft/s 17.8G 4,098ft 13.6s 11s
OK AeroTech J500 75.1oz 134ft/s 959ft/s 37.0G 4,147ft 13.1s 12s
OK Loki J528 78.3oz 137ft/s 985ft/s 45.9G 4,182ft 13.1s 12s
OK AeroTech J270 74.6oz 90ft/s 839ft/s 16.3G 4,191ft 13.7s 11s
OK AeroTech J575 84.2oz 133ft/s 992ft/s 36.9G 4,224ft 13.1s 12s
OK Cesaroni J94 75.3oz 55ft/s 544ft/s 6.8G 4,272ft 15.9s 9s
OK AeroTech J435 74.0oz 124ft/s 997ft/s 32.6G 4,386ft 13.4s 12s
OK Cesaroni J410 77.9oz 108ft/s 959ft/s 22.6G 4,396ft 13.6s 12s
OK Loki J712 78.5oz 141ft/s 1,070ft/s 39.3G 4,405ft 13.4s 12s
OK Cesaroni J425 76.7oz 112ft/s 976ft/s 30.4G 4,407ft 13.5s 12s
OK Cesaroni J330 76.8oz 104ft/s 915ft/s 20.6G 4,417ft 13.8s 12s
OK Cesaroni J520 82.0oz 116ft/s 1,041ft/s 27.8G 4,554ft 13.7s 12s
OK Cesaroni J354 79.4oz 107ft/s 930ft/s 22.6G 4,594ft 13.9s 11s
OK Loki J320 78.5oz 103ft/s 917ft/s 23.3G 4,626ft 14.1s 12s
OK Cesaroni J580 88.8oz 115ft/s 1,052ft/s 26.1G 4,678ft 13.9s 12s
OK AeroTech J825 82.9oz 159ft/s 1,235ft/s 50.1G 4,862ft 13.7s 13s
OK Cesaroni J595 82.5oz 129ft/s 1,149ft/s 38.7G 5,031ft 14.0s 12s
OK Cesaroni J600 84.0oz 120ft/s 1,186ft/s 30.1G 5,043ft 14.0s 12s
OK Cesaroni J394 85.1oz 95ft/s 1,062ft/s 17.8G 5,126ft 14.5s 12s
OK AeroTech J570 83.8oz 157ft/s 1,105ft/s 48.5G 5,181ft 14.1s 12s
OK Cesaroni J453 86.0oz 117ft/s 1,082ft/s 29.4G 5,200ft 14.4s 12s
OK Cesaroni J420 82.8oz 124ft/s 1,073ft/s 33.1G 5,245ft 14.4s 12s
OK Cesaroni J530 86.5oz 132ft/s 1,186ft/s 32.6G 5,469ft 14.4s 12s
OK Cesaroni J150 85.5oz 69ft/s 724ft/s 12.7G 5,559ft 16.6s 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
failedG AeroTech G67 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (34ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (42ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (44ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (36ft/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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