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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 (653 motors didn't fit, 17 motors failed safety checks). 158 motor had thrust curves available and 325 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:   Milestone 2.6
Owner: Jim Lane
Body Diameter: 2.63in
Dry Weight: 63.9oz
MMT Diameter: 38.0mm
MMT Length: 23.00in
CD: 0.80

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 G130 82.1oz 65ft/s 118ft/s 22.5G 272ft 4.3s 3s
OK Contrail G300 83.1oz 111ft/s 132ft/s 34.3G 276ft 4.2s 4s
OK Contrail G234 83.1oz 104ft/s 149ft/s 22.6G 369ft 4.9s 4s
OK Loki G80 72.9oz 48ft/s 144ft/s 4.5G 424ft 5.6s 4s
OK AeroTech G339 70.3oz 96ft/s 174ft/s 18.3G 450ft 5.4s 5s
OK Loki G94 72.4oz 52ft/s 155ft/s 5.6G 458ft 5.8s 4s
OK Contrail G123 81.9oz 63ft/s 165ft/s 14.6G 499ft 5.9s 5s
OK Loki G66 72.7oz 48ft/s 152ft/s 4.7G 514ft 6.4s 4s
OK Contrail G100 81.9oz 59ft/s 162ft/s 7.0G 516ft 6.0s 5s
OK Cesaroni G185 70.5oz 65ft/s 188ft/s 9.6G 538ft 6.0s 5s
OK Cesaroni G115 70.8oz 52ft/s 190ft/s 5.7G 609ft 6.6s 5s
OK Contrail H300 85.5oz 107ft/s 200ft/s 29.2G 628ft 6.3s 6s
OK Contrail H222 82.2oz 90ft/s 200ft/s 28.7G 637ft 6.4s 6s
OK Contrail H303 84.7oz 116ft/s 215ft/s 32.1G 706ft 6.6s 6s
OK Contrail H211 85.1oz 103ft/s 248ft/s 25.7G 954ft 7.7s 7s
OK Loki H100 75.7oz 52ft/s 241ft/s 6.1G 1,014ft 8.4s 6s
OK Contrail H121 85.5oz 61ft/s 246ft/s 10.2G 1,059ft 8.5s 7s
OK Contrail H246 85.0oz 98ft/s 271ft/s 21.5G 1,073ft 8.1s 7s
warningsW AeroTech H283 72.6oz 86ft/s 293ft/s 15.6G 1,125ft 8.3s 8s
OK AeroTech H148 74.8oz 64ft/s 280ft/s 8.3G 1,175ft 8.8s 7s
OK Contrail H141 85.5oz 70ft/s 273ft/s 10.2G 1,197ft 8.8s 7s
OK AeroTech H130 72.3oz 78ft/s 276ft/s 11.9G 1,206ft 8.8s 7s
OK AeroTech H100 73.1oz 50ft/s 277ft/s 5.4G 1,292ft 9.5s 7s
OK AeroTech H123 73.6oz 55ft/s 274ft/s 6.3G 1,293ft 9.4s 7s
OK Loki H90 75.7oz 55ft/s 269ft/s 6.0G 1,305ft 9.5s 7s
OK AeroTech H669 72.8oz 135ft/s 343ft/s 53.7G 1,331ft 8.7s 8s
OK Cesaroni H123 74.4oz 50ft/s 303ft/s 6.3G 1,347ft 9.6s 8s
OK Loki H125 76.0oz 64ft/s 294ft/s 8.7G 1,380ft 9.5s 8s
OK Loki H144 75.8oz 72ft/s 305ft/s 10.8G 1,384ft 9.3s 8s
OK Cesaroni H143 76.1oz 53ft/s 314ft/s 6.8G 1,390ft 9.7s 8s
OK AeroTech H219 73.1oz 81ft/s 334ft/s 13.4G 1,420ft 9.3s 8s
OK AeroTech H242 73.2oz 73ft/s 339ft/s 10.7G 1,502ft 9.6s 8s
OK Loki H160 75.7oz 78ft/s 332ft/s 12.7G 1,532ft 9.7s 8s
OK Cesaroni H120 74.3oz 54ft/s 330ft/s 6.2G 1,581ft 10.3s 8s
OK Cesaroni H110 75.4oz 48ft/s 325ft/s 5.0G 1,607ft 10.5s 8s
OK Cesaroni H400 73.9oz 96ft/s 383ft/s 20.7G 1,610ft 9.6s 9s
OK Cesaroni H125 74.2oz 53ft/s 343ft/s 6.4G 1,640ft 10.4s 8s
OK Cesaroni H100 75.4oz 48ft/s 337ft/s 4.6G 1,743ft 11.0s 8s
OK Cesaroni H152 74.4oz 62ft/s 364ft/s 9.3G 1,758ft 10.5s 9s
OK AeroTech H178 75.3oz 59ft/s 382ft/s 9.4G 1,801ft 10.6s 9s
OK Cesaroni H225 70.7oz 76ft/s 403ft/s 12.1G 1,824ft 10.4s 9s
OK AeroTech I218 77.0oz 79ft/s 421ft/s 12.4G 2,052ft 11.0s 9s
OK AeroTech H170 75.5oz 64ft/s 410ft/s 8.8G 2,071ft 11.2s 9s
OK AeroTech H550 75.3oz 122ft/s 466ft/s 30.1G 2,080ft 10.6s 10s
OK AeroTech H550 75.0oz 122ft/s 471ft/s 30.4G 2,092ft 10.6s 10s
OK AeroTech I180 77.5oz 89ft/s 403ft/s 15.8G 2,106ft 11.1s 9s
warningsW Cesaroni H565 76.7oz 120ft/s 473ft/s 29.7G 2,108ft 10.7s 10s
OK AeroTech H999 75.6oz 165ft/s 489ft/s 75.6G 2,137ft 10.6s 10s
OK AeroTech I175 76.2oz 74ft/s 411ft/s 10.9G 2,161ft 11.4s 9s
OK AeroTech I161 76.8oz 66ft/s 411ft/s 9.3G 2,161ft 11.5s 9s
OK Cesaroni I180 77.8oz 60ft/s 435ft/s 8.9G 2,200ft 11.6s 10s
OK AeroTech I140 76.5oz 59ft/s 406ft/s 7.5G 2,222ft 11.8s 9s
OK AeroTech I225 81.0oz 68ft/s 451ft/s 11.5G 2,311ft 11.6s 10s
OK AeroTech I245 76.8oz 94ft/s 462ft/s 18.5G 2,331ft 11.4s 10s
OK AeroTech I357 76.0oz 92ft/s 477ft/s 17.0G 2,354ft 11.5s 10s
OK Cesaroni I212 80.7oz 66ft/s 465ft/s 10.5G 2,357ft 11.8s 10s
OK AeroTech I154 81.3oz 54ft/s 414ft/s 6.5G 2,446ft 12.6s 9s
OK Cesaroni I566 77.5oz 114ft/s 542ft/s 28.3G 2,501ft 11.5s 11s
OK Cesaroni I195 78.6oz 67ft/s 495ft/s 9.9G 2,649ft 12.4s 10s
OK Cesaroni I345 77.8oz 92ft/s 549ft/s 17.0G 2,707ft 12.1s 11s
OK AeroTech I285 81.3oz 85ft/s 531ft/s 15.8G 2,733ft 12.3s 11s
OK Cesaroni I170 77.7oz 65ft/s 506ft/s 9.5G 2,743ft 12.6s 10s
OK Cesaroni I175 79.3oz 62ft/s 498ft/s 7.8G 2,748ft 12.7s 10s
OK Cesaroni I800 80.0oz 136ft/s 602ft/s 40.4G 2,793ft 12.0s 11s
OK Cesaroni I236 78.0oz 77ft/s 533ft/s 13.3G 2,818ft 12.6s 11s
OK AeroTech I1299 78.8oz 179ft/s 627ft/s 69.4G 2,869ft 11.9s 12s
OK AeroTech I305 84.4oz 87ft/s 546ft/s 16.7G 2,872ft 12.4s 11s
OK AeroTech I211 79.9oz 79ft/s 522ft/s 13.4G 2,892ft 12.7s 10s
OK Cesaroni I223 81.3oz 69ft/s 540ft/s 10.4G 2,894ft 12.8s 11s
OK AeroTech I195 84.1oz 82ft/s 517ft/s 14.5G 2,901ft 12.7s 10s
OK AeroTech I300 79.5oz 93ft/s 562ft/s 20.1G 2,936ft 12.5s 11s
OK Loki I316 82.9oz 101ft/s 583ft/s 20.9G 3,128ft 12.8s 11s
warningsW Loki I110 84.7oz 57ft/s 477ft/s 10.2G 3,165ft 13.9s 10s
OK Cesaroni I287 85.2oz 76ft/s 602ft/s 13.7G 3,209ft 13.2s 11s
OK Loki I210 82.9oz 87ft/s 559ft/s 18.2G 3,265ft 13.2s 11s
OK Loki I405 83.1oz 128ft/s 632ft/s 33.8G 3,298ft 12.9s 12s
OK AeroTech I59 81.1oz 55ft/s 321ft/s 6.6G 3,306ft 15.7s 7s
OK Cesaroni I285 81.7oz 80ft/s 630ft/s 14.5G 3,424ft 13.5s 12s
OK Loki I377 83.7oz 115ft/s 644ft/s 27.3G 3,471ft 13.3s 12s
OK Cesaroni I255 82.1oz 79ft/s 627ft/s 12.9G 3,472ft 13.6s 12s
OK Loki I430 82.9oz 100ft/s 681ft/s 22.1G 3,490ft 13.3s 12s
OK AeroTech I327 86.1oz 88ft/s 659ft/s 17.1G 3,539ft 13.5s 12s
OK AMW I297 84.7oz 83ft/s 653ft/s 14.9G 3,558ft 13.6s 12s
OK AeroTech I364 87.8oz 85ft/s 656ft/s 16.4G 3,560ft 13.6s 12s
OK AeroTech I366 83.5oz 99ft/s 672ft/s 20.1G 3,561ft 13.4s 12s
OK Cesaroni I470 81.4oz 108ft/s 717ft/s 23.6G 3,617ft 13.4s 12s
OK Cesaroni I303 81.5oz 85ft/s 666ft/s 17.2G 3,630ft 13.7s 12s
OK AeroTech I280 85.6oz 79ft/s 665ft/s 13.2G 3,672ft 13.9s 12s
OK Cesaroni I242 83.3oz 75ft/s 648ft/s 11.3G 3,679ft 14.1s 12s
OK Cesaroni I125 86.7oz 65ft/s 526ft/s 10.1G 3,762ft 15.0s 10s
OK KBA I301 89.5oz 80ft/s 664ft/s 15.3G 3,786ft 14.1s 12s
OK AeroTech I435 82.2oz 124ft/s 730ft/s 32.1G 3,792ft 13.6s 12s
OK KBA I550 89.0oz 102ft/s 736ft/s 25.5G 3,797ft 13.7s 13s
OK Cesaroni I350 91.5oz 88ft/s 695ft/s 14.8G 3,809ft 14.0s 12s
OK AeroTech I284 83.5oz 97ft/s 704ft/s 20.1G 3,877ft 13.9s 12s
OK AeroTech I500 84.2oz 104ft/s 786ft/s 23.6G 4,071ft 14.0s 13s
OK KBA J520 89.4oz 104ft/s 785ft/s 27.7G 4,125ft 14.2s 13s
warningsW Cesaroni I540 85.0oz 112ft/s 814ft/s 26.1G 4,126ft 14.0s 13s
OK AeroTech I600 85.1oz 126ft/s 810ft/s 33.7G 4,136ft 14.0s 13s
OK Loki J396 90.4oz 88ft/s 761ft/s 21.0G 4,139ft 14.3s 13s
OK AeroTech J420 86.8oz 103ft/s 782ft/s 22.2G 4,191ft 14.3s 13s
OK AeroTech I350 85.6oz 97ft/s 790ft/s 19.8G 4,194ft 14.3s 13s
OK AeroTech J350 87.4oz 119ft/s 781ft/s 32.9G 4,205ft 14.2s 13s
OK Cesaroni I216 85.1oz 75ft/s 682ft/s 13.3G 4,208ft 14.8s 12s
OK Cesaroni J381 88.2oz 97ft/s 772ft/s 19.6G 4,209ft 14.4s 13s
OK Cesaroni J335 86.0oz 90ft/s 761ft/s 16.2G 4,211ft 14.5s 12s
OK KBA J740 89.4oz 135ft/s 841ft/s 37.8G 4,216ft 14.1s 13s
OK AeroTech J340 84.3oz 103ft/s 775ft/s 24.7G 4,231ft 14.3s 12s
OK Cesaroni J285 84.9oz 86ft/s 744ft/s 14.7G 4,264ft 14.6s 12s
OK Cesaroni J270 87.0oz 76ft/s 738ft/s 11.6G 4,267ft 14.8s 12s
OK Cesaroni J357 85.1oz 97ft/s 790ft/s 20.8G 4,290ft 14.4s 13s
OK Cesaroni J316 85.3oz 88ft/s 748ft/s 17.4G 4,295ft 14.6s 12s
OK AeroTech J520 90.6oz 131ft/s 787ft/s 34.7G 4,297ft 14.3s 13s
OK Cesaroni J94 87.2oz 50ft/s 513ft/s 5.7G 4,331ft 16.8s 10s
OK AeroTech J425 86.2oz 91ft/s 837ft/s 18.0G 4,392ft 14.6s 13s
OK Cesaroni J290 87.2oz 86ft/s 766ft/s 15.2G 4,433ft 14.9s 12s
OK Cesaroni J400 88.7oz 94ft/s 817ft/s 18.6G 4,452ft 14.6s 13s
OK Loki J474 90.6oz 133ft/s 789ft/s 46.5G 4,452ft 14.5s 13s
OK AeroTech J270 86.5oz 81ft/s 771ft/s 13.9G 4,549ft 15.0s 12s
OK AeroTech J500 87.0oz 124ft/s 870ft/s 31.8G 4,583ft 14.5s 13s
OK Loki J528 90.2oz 129ft/s 887ft/s 39.7G 4,627ft 14.6s 13s
OK Loki J326 90.9oz 114ft/s 768ft/s 37.6G 4,699ft 15.1s 13s
OK AeroTech J575 96.1oz 126ft/s 900ft/s 32.3G 4,713ft 14.6s 13s
OK Cesaroni J330 88.7oz 95ft/s 841ft/s 17.7G 4,849ft 15.2s 13s
OK Cesaroni J410 89.8oz 100ft/s 879ft/s 19.5G 4,853ft 15.1s 13s
OK AeroTech J435 85.9oz 115ft/s 910ft/s 27.9G 4,879ft 14.9s 13s
OK Cesaroni J425 88.6oz 103ft/s 893ft/s 26.2G 4,887ft 15.0s 13s
OK Loki J712 90.4oz 127ft/s 960ft/s 34.0G 4,916ft 14.9s 14s
OK Cesaroni J354 91.3oz 98ft/s 867ft/s 19.5G 5,072ft 15.4s 13s
OK Cesaroni J520 93.9oz 107ft/s 952ft/s 24.1G 5,090ft 15.2s 13s
OK Cesaroni J580 100.7oz 107ft/s 966ft/s 23.8G 5,222ft 15.5s 14s
OK AeroTech J825 94.8oz 139ft/s 1,123ft/s 43.7G 5,556ft 15.4s 14s
OK Cesaroni J595 94.4oz 121ft/s 1,067ft/s 33.7G 5,721ft 15.7s 14s
OK Cesaroni J600 95.9oz 113ft/s 1,095ft/s 26.2G 5,743ft 15.8s 14s
OK Cesaroni J394 97.0oz 87ft/s 995ft/s 15.5G 5,744ft 16.2s 14s
OK Cesaroni J453 97.9oz 109ft/s 1,014ft/s 25.7G 5,866ft 16.1s 14s
OK AeroTech J570 95.7oz 137ft/s 1,036ft/s 42.4G 5,885ft 15.8s 14s
OK Cesaroni J420 94.7oz 115ft/s 1,005ft/s 28.8G 5,902ft 16.1s 14s
OK Cesaroni J150 97.4oz 65ft/s 702ft/s 11.0G 5,952ft 18.0s 12s
OK Cesaroni J530 98.4oz 124ft/s 1,111ft/s 28.5G 6,243ft 16.3s 14s
OK AeroTech J510 102.0oz 125ft/s 1,113ft/s 35.7G 6,423ft 16.4s 14s

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 (42ft/s)
failedG Loki G69 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (40ft/s)
failedG Loki G70 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (40ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (30ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (38ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (44ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (39ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (32ft/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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