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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 156 motors that fit and appear to have enough thrust (625 motors didn't fit, 30 motors failed safety checks). 186 motor had thrust curves available and 377 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:   CJs MACHing Bird
Owner: KenRico
Body Diameter: 2.64in
Dry Weight: 80.5oz
MMT Diameter: 38.0mm
MMT Length: 100.00in
CD: 0.45

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 G234 99.7oz 95ft/s 122ft/s 18.6G 266ft 4.2s 4s
OK AeroTech G339 86.9oz 85ft/s 139ft/s 14.6G 313ft 4.6s 4s
OK Contrail G123 98.5oz 57ft/s 133ft/s 12.0G 357ft 5.1s 4s
OK Contrail G100 98.5oz 53ft/s 130ft/s 5.7G 368ft 5.2s 4s
OK Cesaroni G185 87.1oz 59ft/s 148ft/s 7.6G 374ft 5.1s 4s
OK Contrail H300 102.1oz 93ft/s 165ft/s 24.3G 474ft 5.6s 5s
OK Contrail H222 98.8oz 80ft/s 164ft/s 23.7G 476ft 5.6s 5s
OK Contrail H303 101.3oz 100ft/s 178ft/s 26.7G 539ft 5.9s 5s
OK Contrail H211 101.7oz 90ft/s 206ft/s 21.3G 749ft 7.0s 6s
OK Contrail H121 102.1oz 55ft/s 202ft/s 8.4G 821ft 7.7s 6s
OK Contrail H246 101.6oz 89ft/s 225ft/s 17.8G 858ft 7.5s 7s
warningsW AeroTech H283 89.2oz 78ft/s 237ft/s 12.6G 883ft 7.6s 7s
OK AeroTech H148 91.4oz 58ft/s 226ft/s 6.6G 911ft 8.1s 7s
OK AeroTech H130 88.9oz 68ft/s 223ft/s 9.5G 942ft 8.1s 6s
OK Contrail H141 102.1oz 65ft/s 227ft/s 8.3G 957ft 8.1s 6s
OK AeroTech H123 90.2oz 49ft/s 220ft/s 4.9G 1,002ft 8.7s 6s
OK Loki H90 92.3oz 48ft/s 216ft/s 4.7G 1,008ft 8.8s 6s
OK Contrail H248 108.5oz 82ft/s 247ft/s 22.0G 1,040ft 8.3s 7s
OK AeroTech H669 89.4oz 122ft/s 278ft/s 43.5G 1,097ft 8.2s 8s
OK Loki H125 92.6oz 57ft/s 240ft/s 7.0G 1,103ft 8.9s 7s
OK Cesaroni H143 92.7oz 48ft/s 253ft/s 5.5G 1,107ft 9.0s 7s
OK Loki H144 92.4oz 66ft/s 249ft/s 8.7G 1,119ft 8.7s 7s
OK AeroTech H219 89.7oz 71ft/s 271ft/s 10.7G 1,162ft 8.8s 8s
OK AeroTech H242 89.8oz 65ft/s 275ft/s 8.6G 1,237ft 9.1s 8s
OK Loki H160 92.3oz 72ft/s 273ft/s 10.2G 1,275ft 9.2s 8s
OK Cesaroni H120 90.9oz 49ft/s 267ft/s 4.9G 1,282ft 9.7s 8s
OK Contrail H277 105.5oz 90ft/s 286ft/s 24.8G 1,336ft 9.3s 8s
OK Contrail H340 109.3oz 93ft/s 294ft/s 28.5G 1,366ft 9.3s 8s
OK Cesaroni H400 90.5oz 87ft/s 312ft/s 16.8G 1,376ft 9.3s 9s
OK Cesaroni H152 91.0oz 55ft/s 298ft/s 7.4G 1,486ft 10.2s 8s
OK AeroTech H178 91.9oz 54ft/s 312ft/s 7.6G 1,545ft 10.3s 9s
OK Cesaroni H225 87.3oz 69ft/s 327ft/s 9.6G 1,584ft 10.2s 9s
OK Contrail I500 108.7oz 125ft/s 336ft/s 32.6G 1,653ft 10.1s 9s
OK AeroTech H170 92.1oz 57ft/s 339ft/s 7.1G 1,842ft 11.2s 9s
OK AeroTech I218 93.6oz 70ft/s 349ft/s 10.0G 1,846ft 11.0s 9s
OK Contrail I221 105.5oz 86ft/s 336ft/s 15.4G 1,866ft 11.0s 9s
OK AeroTech I180 94.1oz 80ft/s 339ft/s 12.9G 1,906ft 11.1s 9s
OK AeroTech H550 91.9oz 112ft/s 383ft/s 24.5G 1,926ft 10.8s 10s
OK AeroTech I175 92.8oz 68ft/s 344ft/s 8.8G 1,927ft 11.4s 9s
OK AeroTech I161 93.4oz 59ft/s 343ft/s 7.5G 1,947ft 11.5s 9s
OK AeroTech H550 91.6oz 113ft/s 386ft/s 24.7G 1,947ft 10.8s 10s
warningsW Cesaroni H565 93.3oz 106ft/s 388ft/s 24.7G 1,960ft 10.9s 10s
OK AeroTech I140 93.1oz 55ft/s 341ft/s 6.0G 1,992ft 11.8s 9s
OK Cesaroni I180 94.4oz 54ft/s 361ft/s 7.4G 1,997ft 11.6s 10s
OK AeroTech H999 92.2oz 148ft/s 400ft/s 61.7G 2,011ft 10.9s 11s
OK AeroTech I225 97.6oz 61ft/s 379ft/s 9.5G 2,156ft 11.9s 10s
OK AeroTech I245 93.4oz 86ft/s 388ft/s 15.0G 2,200ft 11.7s 10s
OK Cesaroni I212 97.3oz 60ft/s 389ft/s 8.8G 2,200ft 12.1s 10s
OK AeroTech I154 97.9oz 49ft/s 351ft/s 5.2G 2,222ft 12.7s 9s
OK AeroTech I357 92.6oz 83ft/s 397ft/s 13.7G 2,230ft 11.8s 10s
OK Contrail I290 111.7oz 75ft/s 393ft/s 15.1G 2,335ft 12.2s 11s
OK Contrail I400 113.1oz 107ft/s 412ft/s 27.2G 2,373ft 12.1s 11s
OK Cesaroni I566 94.1oz 102ft/s 447ft/s 23.8G 2,453ft 12.1s 11s
OK Contrail I747 110.1oz 166ft/s 441ft/s 61.0G 2,484ft 12.1s 12s
OK Contrail I250 106.0oz 84ft/s 408ft/s 18.4G 2,514ft 12.6s 11s
OK Cesaroni I195 95.2oz 61ft/s 418ft/s 8.0G 2,547ft 12.9s 11s
OK Cesaroni I175 95.9oz 56ft/s 422ft/s 6.4G 2,655ft 13.3s 11s
OK Cesaroni I170 94.3oz 59ft/s 428ft/s 7.7G 2,665ft 13.3s 11s
OK Cesaroni I345 94.4oz 83ft/s 458ft/s 13.9G 2,686ft 12.8s 12s
OK AeroTech I285 97.9oz 78ft/s 449ft/s 12.9G 2,708ft 13.0s 11s
OK Cesaroni I236 94.6oz 68ft/s 451ft/s 10.8G 2,795ft 13.3s 12s
OK Cesaroni I800 96.6oz 122ft/s 498ft/s 34.0G 2,861ft 12.9s 12s
OK Cesaroni I223 97.9oz 63ft/s 459ft/s 8.7G 2,889ft 13.6s 12s
OK AeroTech I211 96.5oz 71ft/s 447ft/s 11.0G 2,893ft 13.5s 11s
OK AeroTech I195 100.7oz 74ft/s 446ft/s 12.0G 2,904ft 13.5s 11s
OK AeroTech I305 101.0oz 80ft/s 467ft/s 13.9G 2,918ft 13.3s 12s
OK Contrail I210 111.2oz 84ft/s 424ft/s 14.1G 2,919ft 13.7s 11s
OK AeroTech I300 96.1oz 85ft/s 477ft/s 16.4G 2,988ft 13.5s 12s
OK AeroTech I1299 95.4oz 165ft/s 518ft/s 57.1G 2,989ft 13.0s 13s
OK AeroTech I59 97.7oz 48ft/s 285ft/s 5.3G 3,018ft 15.9s 7s
warningsW Loki I110 101.3oz 51ft/s 420ft/s 8.4G 3,121ft 14.7s 11s
OK Loki I316 99.5oz 95ft/s 502ft/s 17.3G 3,256ft 13.9s 12s
OK Cesaroni I287 101.8oz 70ft/s 515ft/s 11.6G 3,353ft 14.4s 13s
OK Loki I210 99.5oz 80ft/s 489ft/s 15.0G 3,393ft 14.4s 12s
OK Contrail I155 106.1oz 58ft/s 463ft/s 6.5G 3,469ft 15.3s 12s
OK Contrail I333 113.3oz 89ft/s 509ft/s 26.6G 3,496ft 14.6s 13s
OK Loki I405 99.7oz 114ft/s 543ft/s 28.0G 3,536ft 14.3s 13s
OK Cesaroni I285 98.3oz 75ft/s 543ft/s 11.9G 3,656ft 14.9s 13s
OK Cesaroni I255 98.7oz 71ft/s 542ft/s 10.6G 3,703ft 15.1s 13s
OK Loki I377 100.3oz 102ft/s 559ft/s 22.6G 3,757ft 14.8s 13s
OK Loki I430 99.5oz 92ft/s 580ft/s 18.2G 3,785ft 14.8s 14s
OK AeroTech I327 102.7oz 81ft/s 569ft/s 14.1G 3,853ft 15.1s 13s
OK AMW I297 101.3oz 76ft/s 564ft/s 12.3G 3,862ft 15.2s 13s
OK AeroTech I364 104.4oz 79ft/s 570ft/s 13.8G 3,888ft 15.2s 14s
OK Contrail I307 109.1oz 100ft/s 543ft/s 22.4G 3,897ft 15.2s 13s
OK Cesaroni I125 103.3oz 57ft/s 476ft/s 8.3G 3,898ft 16.3s 12s
OK AeroTech I366 100.1oz 91ft/s 580ft/s 16.6G 3,902ft 15.1s 14s
OK Cesaroni I303 98.1oz 77ft/s 576ft/s 14.1G 3,973ft 15.3s 13s
OK Cesaroni I242 99.9oz 67ft/s 565ft/s 9.3G 3,985ft 15.7s 13s
OK AeroTech I280 102.2oz 72ft/s 578ft/s 10.9G 4,014ft 15.6s 14s
OK Cesaroni I470 98.0oz 95ft/s 610ft/s 19.5G 4,016ft 15.1s 14s
OK Contrail I727 113.3oz 161ft/s 603ft/s 51.8G 4,105ft 15.2s 14s
OK KBA I301 106.1oz 74ft/s 583ft/s 12.8G 4,141ft 15.7s 14s
OK Cesaroni I350 108.1oz 79ft/s 606ft/s 12.6G 4,222ft 15.8s 14s
OK KBA I550 105.6oz 97ft/s 631ft/s 21.8G 4,243ft 15.5s 14s
OK AeroTech I435 98.8oz 111ft/s 630ft/s 26.5G 4,295ft 15.5s 14s
OK Contrail J150 111.9oz 61ft/s 518ft/s 7.6G 4,346ft 16.9s 13s
OK AeroTech I284 100.1oz 89ft/s 617ft/s 16.7G 4,374ft 15.9s 14s
OK Contrail J246 110.9oz 87ft/s 585ft/s 16.0G 4,666ft 16.8s 14s
OK AeroTech I500 100.8oz 98ft/s 680ft/s 19.9G 4,729ft 16.2s 15s
OK Cesaroni I216 101.7oz 71ft/s 609ft/s 11.0G 4,732ft 16.9s 14s
OK Loki J396 107.0oz 82ft/s 666ft/s 17.9G 4,748ft 16.5s 15s
OK KBA J520 106.0oz 98ft/s 681ft/s 23.2G 4,751ft 16.3s 15s
warningsW Cesaroni I540 101.6oz 107ft/s 701ft/s 21.8G 4,833ft 16.3s 15s
OK AeroTech I600 101.7oz 113ft/s 701ft/s 28.0G 4,857ft 16.3s 15s
OK Cesaroni J335 102.6oz 83ft/s 669ft/s 13.5G 4,857ft 16.7s 15s
OK AeroTech J420 103.4oz 93ft/s 684ft/s 18.5G 4,872ft 16.6s 15s
OK Cesaroni J270 103.6oz 69ft/s 655ft/s 9.8G 4,876ft 17.0s 15s
OK AeroTech I350 102.2oz 85ft/s 689ft/s 16.6G 4,883ft 16.6s 15s
OK Cesaroni J381 104.8oz 90ft/s 679ft/s 16.4G 4,893ft 16.6s 15s
OK Cesaroni J285 101.5oz 78ft/s 659ft/s 12.3G 4,905ft 16.9s 15s
OK AeroTech J350 104.0oz 110ft/s 686ft/s 27.5G 4,923ft 16.5s 15s
OK Cesaroni J316 101.9oz 81ft/s 662ft/s 14.4G 4,923ft 16.9s 15s
OK KBA J740 106.0oz 121ft/s 720ft/s 33.0G 4,943ft 16.4s 16s
OK AeroTech J340 100.9oz 96ft/s 682ft/s 20.4G 4,953ft 16.7s 15s
OK Contrail J333 118.0oz 107ft/s 609ft/s 23.3G 4,961ft 17.0s 15s
OK RATT J160 99.7oz 65ft/s 549ft/s 8.4G 4,972ft 18.0s 13s
OK Cesaroni J357 101.7oz 85ft/s 694ft/s 17.2G 5,013ft 16.8s 15s
OK AeroTech J520 107.2oz 119ft/s 696ft/s 29.1G 5,048ft 16.7s 15s
OK Contrail J242 118.1oz 79ft/s 601ft/s 12.6G 5,113ft 17.6s 15s
OK Cesaroni J290 103.8oz 78ft/s 685ft/s 12.6G 5,166ft 17.3s 15s
OK AeroTech J425 102.8oz 80ft/s 729ft/s 15.5G 5,196ft 17.1s 15s
OK Loki J474 107.2oz 120ft/s 706ft/s 39.1G 5,266ft 17.0s 15s
OK Cesaroni J400 105.3oz 88ft/s 722ft/s 15.9G 5,272ft 17.2s 15s
OK AeroTech J270 103.1oz 74ft/s 694ft/s 11.6G 5,347ft 17.6s 15s
OK Contrail J555 120.4oz 139ft/s 698ft/s 39.1G 5,432ft 17.4s 16s
OK Loki J326 107.5oz 101ft/s 699ft/s 31.6G 5,538ft 17.6s 15s
OK AeroTech J500 103.6oz 111ft/s 766ft/s 26.5G 5,554ft 17.3s 16s
OK Loki J528 106.8oz 116ft/s 778ft/s 33.4G 5,621ft 17.3s 16s
OK AeroTech J575 112.7oz 115ft/s 798ft/s 27.6G 5,825ft 17.6s 16s
OK Cesaroni J330 105.3oz 88ft/s 757ft/s 14.7G 5,852ft 18.1s 16s
OK Cesaroni J410 106.4oz 91ft/s 785ft/s 16.2G 5,911ft 18.0s 16s
OK Cesaroni J425 105.2oz 98ft/s 795ft/s 21.9G 6,007ft 18.0s 16s
OK AeroTech J435 102.5oz 102ft/s 808ft/s 23.2G 6,023ft 17.9s 16s
OK Loki J712 107.0oz 119ft/s 840ft/s 28.6G 6,100ft 17.9s 17s
OK Cesaroni J354 107.9oz 86ft/s 792ft/s 16.4G 6,216ft 18.5s 16s
OK Cesaroni J520 110.5oz 96ft/s 848ft/s 20.3G 6,364ft 18.4s 17s
OK Contrail J800 121.0oz 163ft/s 819ft/s 53.0G 6,520ft 18.6s 17s
OK Cesaroni J580 117.3oz 97ft/s 864ft/s 21.6G 6,532ft 18.7s 17s
OK Contrail J345 119.9oz 99ft/s 756ft/s 25.0G 6,590ft 19.2s 17s
OK Contrail J222 117.3oz 76ft/s 702ft/s 15.6G 6,668ft 20.0s 16s
OK Loki J650 120.8oz 104ft/s 887ft/s 28.3G 6,804ft 18.9s 17s
OK Cesaroni J150 114.0oz 59ft/s 685ft/s 9.2G 7,026ft 21.0s 15s
OK AeroTech J825 111.4oz 128ft/s 995ft/s 37.0G 7,273ft 19.1s 18s
OK Cesaroni J394 113.6oz 82ft/s 916ft/s 14.8G 7,321ft 19.8s 17s
OK Cesaroni J595 111.0oz 110ft/s 974ft/s 28.5G 7,470ft 19.5s 18s
OK Cesaroni J600 112.5oz 102ft/s 988ft/s 23.0G 7,516ft 19.5s 18s
OK Cesaroni J453 114.5oz 99ft/s 942ft/s 21.8G 7,585ft 19.8s 17s
OK Cesaroni J420 111.3oz 104ft/s 929ft/s 24.3G 7,607ft 19.8s 17s
OK AeroTech J570 112.3oz 126ft/s 961ft/s 35.9G 7,704ft 19.6s 18s
OK Cesaroni J530 115.0oz 113ft/s 1,035ft/s 24.2G 8,291ft 20.3s 18s
OK AeroTech J510 118.6oz 115ft/s 1,046ft/s 30.5G 8,553ft 20.6s 18s
OK Loki J1000 120.8oz 138ft/s 1,146ft/s 40.7G 8,771ft 20.5s 19s
OK Loki J1026 121.8oz 136ft/s 1,199ft/s 36.3G 9,111ft 20.9s 20s
OK Loki K1127 121.8oz 143ft/s 1,192ft/s 42.1G 9,161ft 20.9s 20s
OK Loki K627 124.1oz 116ft/s 1,278ft/s 27.7G 10,708ft 22.4s 20s

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 (189ft)
failedG AeroTech G67 speed at end of launch guide too slow (37ft/s)
failedG Loki G69 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (34ft/s)
failedG Loki G70 speed at end of launch guide too slow (40ft/s)
failedG Loki G94 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (34ft/s)
failedG Loki G80 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (34ft/s)
failedG Loki G66 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (35ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (28ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (25ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (198ft)
failedG AeroTech H73 speed at end of launch guide too slow (33ft/s)
failedG Loki H100 speed at end of launch guide too slow (47ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (44ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (42ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (34ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (28ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (45ft/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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