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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 125 motors that fit and appear to have enough thrust (656 motors didn't fit, 10 motors failed safety checks). 135 motor had thrust curves available and 282 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:   LOC-IV Stretch
Owner: Jim Lane
Body Diameter: 4.00in
Dry Weight: 46.0oz
MMT Diameter: 38.0mm
MMT Length: 18.00in
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 G300 65.2oz 136ft/s 170ft/s 44.0G 395ft 4.8s 5s
OK Contrail G130 64.2oz 76ft/s 155ft/s 29.0G 400ft 5.1s 4s
OK Contrail G234 65.2oz 119ft/s 191ft/s 29.1G 510ft 5.5s 5s
OK Loki G69 54.5oz 52ft/s 177ft/s 5.5G 546ft 6.2s 5s
OK AeroTech G61 52.8oz 48ft/s 174ft/s 4.5G 555ft 6.3s 4s
OK AeroTech G67 53.1oz 50ft/s 184ft/s 5.1G 559ft 6.4s 5s
OK Loki G70 54.5oz 54ft/s 186ft/s 5.7G 604ft 6.5s 5s
OK Loki G80 55.0oz 57ft/s 196ft/s 6.3G 620ft 6.4s 5s
OK AeroTech G339 52.4oz 112ft/s 235ft/s 24.9G 622ft 6.0s 6s
OK Loki G94 54.5oz 62ft/s 209ft/s 7.7G 655ft 6.5s 5s
OK Contrail G123 64.0oz 74ft/s 213ft/s 19.0G 675ft 6.5s 5s
OK Contrail G100 64.0oz 68ft/s 209ft/s 9.3G 699ft 6.7s 5s
OK Cesaroni G185 52.6oz 76ft/s 254ft/s 13.0G 727ft 6.6s 6s
OK Loki G66 54.8oz 57ft/s 205ft/s 6.6G 733ft 7.1s 5s
OK Cesaroni G60 53.3oz 49ft/s 218ft/s 4.8G 774ft 7.4s 5s
OK Contrail H222 64.3oz 105ft/s 254ft/s 36.9G 808ft 6.8s 6s
OK Cesaroni G78 52.9oz 49ft/s 236ft/s 7.9G 815ft 7.4s 6s
OK Cesaroni G115 52.9oz 61ft/s 257ft/s 7.9G 819ft 7.1s 6s
OK Loki H100 57.8oz 60ft/s 307ft/s 7.8G 1,189ft 8.4s 6s
warningsW AeroTech H283 54.7oz 101ft/s 382ft/s 21.0G 1,227ft 8.0s 7s
OK AeroTech H148 56.9oz 75ft/s 355ft/s 11.2G 1,302ft 8.5s 7s
OK AeroTech H130 54.4oz 91ft/s 347ft/s 16.2G 1,315ft 8.4s 7s
OK AeroTech H669 54.9oz 155ft/s 452ft/s 71.6G 1,353ft 8.1s 8s
OK AeroTech H123 55.7oz 64ft/s 340ft/s 8.6G 1,419ft 9.1s 7s
OK AeroTech H100 55.2oz 58ft/s 345ft/s 7.3G 1,426ft 9.1s 7s
OK Loki H90 57.8oz 62ft/s 330ft/s 8.1G 1,449ft 9.3s 7s
OK Cesaroni H123 56.5oz 58ft/s 384ft/s 8.2G 1,452ft 9.1s 7s
OK AeroTech H219 55.2oz 93ft/s 428ft/s 18.1G 1,452ft 8.6s 7s
OK Loki H144 57.9oz 88ft/s 377ft/s 14.4G 1,454ft 8.8s 7s
OK Loki H125 58.1oz 76ft/s 362ft/s 11.7G 1,470ft 9.0s 7s
OK Cesaroni H143 58.2oz 61ft/s 395ft/s 8.7G 1,474ft 9.1s 7s
OK AeroTech H242 55.3oz 84ft/s 427ft/s 14.4G 1,524ft 8.9s 7s
OK Loki H160 57.8oz 94ft/s 408ft/s 17.0G 1,551ft 8.9s 7s
OK Cesaroni H400 56.0oz 113ft/s 497ft/s 27.3G 1,558ft 8.7s 8s
OK AeroTech H112 59.4oz 52ft/s 348ft/s 5.7G 1,612ft 10.0s 7s
OK Cesaroni H120 56.4oz 61ft/s 406ft/s 8.4G 1,629ft 9.5s 7s
OK Cesaroni H125 56.3oz 60ft/s 425ft/s 8.4G 1,664ft 9.6s 7s
OK Cesaroni H110 57.5oz 56ft/s 398ft/s 6.5G 1,669ft 9.8s 7s
OK Cesaroni H225 52.8oz 88ft/s 510ft/s 16.6G 1,714ft 9.1s 8s
OK Cesaroni H152 56.5oz 71ft/s 447ft/s 12.5G 1,726ft 9.5s 8s
OK AeroTech H178 57.4oz 68ft/s 473ft/s 12.0G 1,736ft 9.5s 8s
OK Cesaroni H100 57.5oz 57ft/s 404ft/s 6.4G 1,781ft 10.2s 7s
OK AeroTech H550 57.1oz 140ft/s 601ft/s 40.1G 1,832ft 9.0s 8s
OK AeroTech H550 57.4oz 139ft/s 594ft/s 39.7G 1,839ft 9.1s 9s
OK AeroTech H999 57.7oz 189ft/s 632ft/s 99.4G 1,854ft 9.0s 9s
warningsW Cesaroni H565 58.8oz 138ft/s 604ft/s 37.1G 1,857ft 9.2s 9s
OK AeroTech I218 59.1oz 90ft/s 509ft/s 16.4G 1,887ft 9.6s 8s
OK AeroTech H170 57.6oz 76ft/s 491ft/s 11.5G 1,923ft 9.8s 8s
OK AeroTech I180 59.6oz 104ft/s 473ft/s 20.9G 1,935ft 9.7s 8s
OK AeroTech I161 58.9oz 77ft/s 483ft/s 12.3G 1,989ft 10.0s 8s
OK Cesaroni I180 59.9oz 71ft/s 524ft/s 11.2G 2,006ft 10.1s 8s
OK AeroTech I245 58.9oz 110ft/s 545ft/s 24.1G 2,038ft 9.7s 8s
OK AeroTech I357 58.1oz 105ft/s 576ft/s 22.5G 2,046ft 9.7s 8s
OK AeroTech I140 58.6oz 68ft/s 468ft/s 10.0G 2,056ft 10.3s 8s
OK AeroTech I225 63.1oz 78ft/s 535ft/s 14.2G 2,056ft 10.0s 8s
OK Cesaroni I566 59.6oz 129ft/s 684ft/s 36.1G 2,090ft 9.5s 9s
OK Cesaroni I212 62.8oz 76ft/s 554ft/s 12.9G 2,093ft 10.2s 8s
OK Cesaroni I800 62.1oz 154ft/s 758ft/s 49.0G 2,244ft 9.7s 9s
OK Cesaroni I345 59.9oz 101ft/s 664ft/s 22.4G 2,255ft 10.0s 9s
OK AeroTech I154 63.4oz 62ft/s 466ft/s 8.5G 2,257ft 11.1s 8s
OK AeroTech I1299 60.9oz 205ft/s 797ft/s 88.9G 2,262ft 9.6s 9s
OK Cesaroni I195 60.7oz 77ft/s 573ft/s 13.0G 2,291ft 10.5s 9s
OK AeroTech I285 63.4oz 97ft/s 625ft/s 20.4G 2,297ft 10.2s 9s
OK Cesaroni I170 59.8oz 75ft/s 586ft/s 12.5G 2,352ft 10.6s 8s
OK Cesaroni I236 60.1oz 87ft/s 620ft/s 17.6G 2,360ft 10.4s 9s
OK AeroTech I305 66.5oz 99ft/s 633ft/s 21.1G 2,363ft 10.2s 9s
OK Cesaroni I175 61.4oz 73ft/s 571ft/s 10.1G 2,373ft 10.8s 8s
OK AeroTech I300 61.6oz 108ft/s 654ft/s 26.2G 2,405ft 10.2s 9s
OK AeroTech I211 62.0oz 91ft/s 591ft/s 17.6G 2,420ft 10.5s 8s
OK Cesaroni I223 63.4oz 78ft/s 624ft/s 13.4G 2,421ft 10.6s 9s
OK AeroTech I195 66.2oz 92ft/s 583ft/s 18.6G 2,439ft 10.6s 8s
OK Loki I316 65.0oz 114ft/s 667ft/s 26.7G 2,524ft 10.4s 9s
OK Loki I405 65.2oz 140ft/s 729ft/s 43.4G 2,585ft 10.3s 9s
OK Cesaroni I287 67.3oz 88ft/s 691ft/s 16.6G 2,585ft 10.7s 9s
OK KBA I550 71.1oz 122ft/s 940ft/s 34.0G 2,633ft 10.0s 9s
OK Loki I210 65.0oz 100ft/s 623ft/s 23.5G 2,662ft 10.8s 9s
OK Cesaroni I285 63.8oz 93ft/s 711ft/s 18.9G 2,706ft 10.9s 9s
OK Loki I430 65.0oz 113ft/s 798ft/s 28.4G 2,711ft 10.6s 9s
OK Loki I377 65.8oz 128ft/s 728ft/s 35.0G 2,711ft 10.6s 9s
warningsW Loki I110 66.8oz 66ft/s 518ft/s 13.2G 2,733ft 11.8s 8s
OK KBA I301 71.6oz 93ft/s 785ft/s 19.9G 2,742ft 10.5s 9s
OK Cesaroni I470 63.5oz 121ft/s 839ft/s 30.6G 2,744ft 10.5s 9s
OK AeroTech I366 65.6oz 114ft/s 760ft/s 25.9G 2,749ft 10.7s 9s
OK Cesaroni I255 64.2oz 88ft/s 700ft/s 16.7G 2,755ft 11.0s 9s
OK AeroTech I327 68.2oz 100ft/s 751ft/s 21.8G 2,757ft 10.8s 9s
OK AeroTech I364 69.9oz 97ft/s 737ft/s 20.0G 2,769ft 10.8s 9s
OK AMW I297 66.8oz 96ft/s 739ft/s 19.1G 2,784ft 10.9s 9s
OK Cesaroni I303 63.6oz 98ft/s 751ft/s 22.4G 2,814ft 10.9s 9s
OK AeroTech I435 64.3oz 140ft/s 835ft/s 41.4G 2,841ft 10.6s 9s
OK AeroTech I280 67.7oz 90ft/s 741ft/s 16.9G 2,861ft 11.1s 9s
OK Cesaroni I242 65.4oz 84ft/s 710ft/s 14.7G 2,898ft 11.3s 9s
OK AeroTech I284 65.6oz 111ft/s 776ft/s 25.4G 2,940ft 10.9s 9s
OK Cesaroni I350 73.6oz 96ft/s 779ft/s 18.6G 2,944ft 11.2s 9s
OK AeroTech I500 66.3oz 115ft/s 901ft/s 30.3G 2,996ft 10.8s 10s
warningsW Cesaroni I540 67.1oz 133ft/s 936ft/s 32.9G 3,010ft 10.8s 10s
OK AeroTech I600 67.2oz 148ft/s 925ft/s 43.0G 3,014ft 10.8s 10s
OK KBA J740 71.5oz 146ft/s 990ft/s 45.5G 3,079ft 10.9s 10s
OK AeroTech I350 67.7oz 110ft/s 876ft/s 24.6G 3,098ft 11.1s 10s
OK AeroTech J350 69.5oz 135ft/s 865ft/s 41.7G 3,098ft 11.0s 9s
OK AeroTech I59 63.2oz 63ft/s 367ft/s 8.4G 3,100ft 14.2s 6s
OK AeroTech J420 68.9oz 116ft/s 864ft/s 28.2G 3,103ft 11.1s 10s
OK Loki J396 72.5oz 99ft/s 849ft/s 24.8G 3,108ft 11.3s 10s
OK AeroTech J340 66.4oz 116ft/s 848ft/s 31.6G 3,129ft 11.0s 9s
OK Cesaroni J381 70.3oz 108ft/s 855ft/s 24.9G 3,129ft 11.2s 9s
OK Cesaroni I125 68.8oz 75ft/s 545ft/s 13.0G 3,142ft 12.5s 8s
OK Cesaroni J335 68.1oz 102ft/s 833ft/s 20.8G 3,155ft 11.3s 9s
OK Cesaroni J357 67.2oz 110ft/s 865ft/s 26.6G 3,173ft 11.2s 9s
OK AeroTech J425 68.3oz 103ft/s 930ft/s 22.1G 3,210ft 11.2s 10s
OK Cesaroni J285 67.0oz 94ft/s 806ft/s 18.4G 3,211ft 11.5s 9s
OK Cesaroni J270 69.1oz 84ft/s 790ft/s 14.3G 3,243ft 11.7s 9s
OK Cesaroni J316 67.4oz 101ft/s 815ft/s 22.3G 3,249ft 11.5s 9s
OK Cesaroni I216 67.2oz 87ft/s 722ft/s 17.1G 3,255ft 11.8s 9s
OK Cesaroni J400 70.8oz 105ft/s 892ft/s 22.9G 3,265ft 11.3s 10s
OK AeroTech J500 69.1oz 135ft/s 954ft/s 40.3G 3,286ft 11.1s 10s
OK Loki J528 72.3oz 149ft/s 996ft/s 49.9G 3,309ft 11.1s 10s
OK Cesaroni J290 69.3oz 98ft/s 817ft/s 19.4G 3,318ft 11.7s 9s
OK AeroTech J270 68.6oz 92ft/s 820ft/s 17.8G 3,390ft 11.7s 9s
OK Loki J712 72.5oz 140ft/s 1,084ft/s 42.6G 3,464ft 11.3s 10s
OK AeroTech J435 68.0oz 125ft/s 985ft/s 35.5G 3,470ft 11.3s 10s
OK Cesaroni J425 70.7oz 122ft/s 961ft/s 33.1G 3,502ft 11.5s 10s
OK Cesaroni J410 71.9oz 110ft/s 943ft/s 24.6G 3,504ft 11.6s 10s
OK Cesaroni J330 70.8oz 107ft/s 893ft/s 22.4G 3,540ft 11.8s 10s
OK Cesaroni J94 69.3oz 57ft/s 513ft/s 7.5G 3,669ft 14.3s 7s
OK Cesaroni J354 73.4oz 109ft/s 901ft/s 24.5G 3,680ft 11.9s 9s
OK Loki J320 72.5oz 106ft/s 887ft/s 25.3G 3,722ft 12.1s 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 Cesaroni G69 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (36ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (45ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (46ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (35ft/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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