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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 102 motors that fit and appear to have enough thrust (656 motors didn't fit, 33 motors failed safety checks). 135 motor had thrust curves available and 283 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:   X-Plane SST 38mm
Owner: Jim Lane
Body Diameter: 4.00in
Dry Weight: 83.0oz
MMT Diameter: 38.0mm
MMT Length: 17.00in
CD: 0.58
Web Site: http://www.rocketryforum.com/showthread.php?46071-New-scratch-build-X-Plane-SST

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 102.2oz 94ft/s 118ft/s 18.1G 241ft 4.0s 3s
OK AeroTech G339 89.4oz 84ft/s 134ft/s 14.2G 278ft 4.3s 4s
OK Contrail G123 101.0oz 55ft/s 127ft/s 11.7G 320ft 4.8s 4s
OK Cesaroni G185 89.6oz 59ft/s 143ft/s 7.3G 329ft 4.8s 4s
OK Contrail G100 101.0oz 52ft/s 124ft/s 5.5G 329ft 4.9s 3s
OK Contrail H222 101.3oz 79ft/s 158ft/s 23.1G 419ft 5.2s 5s
warningsW AeroTech H283 91.7oz 78ft/s 226ft/s 12.1G 721ft 6.7s 6s
OK AeroTech H148 93.9oz 57ft/s 213ft/s 6.4G 749ft 7.2s 6s
OK AeroTech H130 91.4oz 68ft/s 208ft/s 9.2G 768ft 7.2s 6s
OK AeroTech H123 92.7oz 48ft/s 203ft/s 4.8G 816ft 7.8s 5s
OK AeroTech H669 91.9oz 121ft/s 268ft/s 42.3G 867ft 7.1s 7s
OK Loki H125 95.1oz 57ft/s 223ft/s 6.8G 890ft 7.8s 6s
OK Loki H144 94.9oz 64ft/s 233ft/s 8.4G 898ft 7.7s 6s
OK AeroTech H219 92.2oz 72ft/s 258ft/s 10.4G 925ft 7.6s 7s
OK AeroTech H242 92.3oz 63ft/s 259ft/s 8.3G 972ft 7.9s 7s
OK Loki H160 94.8oz 70ft/s 255ft/s 9.9G 1,003ft 8.0s 6s
OK Cesaroni H400 93.0oz 88ft/s 298ft/s 16.2G 1,055ft 7.9s 7s
OK Cesaroni H152 93.5oz 55ft/s 277ft/s 7.2G 1,143ft 8.7s 7s
OK AeroTech H178 94.4oz 52ft/s 292ft/s 7.2G 1,177ft 8.8s 7s
OK Cesaroni H225 89.8oz 66ft/s 307ft/s 9.3G 1,188ft 8.6s 7s
OK AeroTech I218 96.1oz 70ft/s 325ft/s 9.7G 1,366ft 9.2s 8s
OK AeroTech H170 94.6oz 57ft/s 313ft/s 6.8G 1,368ft 9.4s 7s
OK AeroTech H550 94.4oz 109ft/s 365ft/s 23.7G 1,393ft 8.8s 8s
OK AeroTech H550 94.1oz 110ft/s 368ft/s 23.9G 1,401ft 8.9s 8s
OK AeroTech I180 96.6oz 78ft/s 311ft/s 12.5G 1,410ft 9.2s 7s
warningsW Cesaroni H565 95.8oz 107ft/s 371ft/s 23.2G 1,415ft 8.9s 8s
OK AeroTech I161 95.9oz 59ft/s 314ft/s 7.2G 1,436ft 9.6s 7s
OK AeroTech H999 94.7oz 144ft/s 385ft/s 60.1G 1,437ft 8.8s 8s
OK Cesaroni I180 96.9oz 54ft/s 335ft/s 6.9G 1,465ft 9.7s 8s
OK AeroTech I140 95.6oz 53ft/s 308ft/s 5.8G 1,470ft 9.9s 7s
OK AeroTech I225 100.1oz 60ft/s 351ft/s 9.0G 1,558ft 9.8s 8s
OK AeroTech I245 95.9oz 83ft/s 358ft/s 14.5G 1,571ft 9.6s 8s
OK AeroTech I357 95.1oz 81ft/s 370ft/s 13.3G 1,584ft 9.6s 8s
OK Cesaroni I212 99.8oz 58ft/s 361ft/s 8.2G 1,585ft 10.0s 8s
OK AeroTech I154 100.4oz 48ft/s 315ft/s 5.0G 1,633ft 10.7s 7s
OK Cesaroni I566 96.6oz 99ft/s 426ft/s 22.1G 1,695ft 9.6s 9s
OK Cesaroni I195 97.7oz 62ft/s 382ft/s 7.7G 1,789ft 10.5s 9s
OK Cesaroni I345 96.9oz 81ft/s 429ft/s 13.5G 1,841ft 10.2s 9s
OK Cesaroni I170 96.8oz 59ft/s 390ft/s 7.4G 1,853ft 10.7s 8s
OK Cesaroni I175 98.4oz 56ft/s 383ft/s 6.1G 1,858ft 10.8s 8s
OK AeroTech I285 100.4oz 77ft/s 417ft/s 12.5G 1,868ft 10.4s 9s
OK Cesaroni I800 99.1oz 118ft/s 477ft/s 31.7G 1,914ft 10.1s 10s
OK Cesaroni I236 97.1oz 69ft/s 413ft/s 10.5G 1,915ft 10.6s 9s
OK AeroTech I1299 97.9oz 161ft/s 498ft/s 55.1G 1,971ft 10.0s 10s
OK Cesaroni I223 100.4oz 61ft/s 420ft/s 8.1G 1,976ft 10.8s 9s
OK AeroTech I211 99.0oz 71ft/s 405ft/s 10.6G 1,978ft 10.8s 8s
OK AeroTech I305 103.5oz 78ft/s 430ft/s 13.3G 1,983ft 10.5s 9s
OK AeroTech I195 103.2oz 73ft/s 404ft/s 11.6G 1,997ft 10.8s 9s
OK AeroTech I300 98.6oz 83ft/s 440ft/s 16.0G 2,014ft 10.6s 9s
OK Loki I316 102.0oz 92ft/s 460ft/s 16.7G 2,165ft 10.8s 9s
warningsW Loki I110 103.8oz 51ft/s 367ft/s 8.2G 2,168ft 11.9s 8s
OK AeroTech I59 100.2oz 48ft/s 238ft/s 5.1G 2,187ft 13.6s 5s
OK Cesaroni I287 104.3oz 70ft/s 474ft/s 10.9G 2,221ft 11.2s 9s
OK Loki I210 102.0oz 81ft/s 438ft/s 14.6G 2,261ft 11.3s 9s
OK Loki I405 102.2oz 111ft/s 500ft/s 27.3G 2,293ft 10.9s 10s
OK Cesaroni I285 100.8oz 73ft/s 493ft/s 11.6G 2,370ft 11.5s 10s
OK Cesaroni I255 101.2oz 69ft/s 489ft/s 10.3G 2,403ft 11.6s 10s
OK Loki I377 102.8oz 99ft/s 510ft/s 22.0G 2,417ft 11.3s 10s
OK Loki I430 102.0oz 90ft/s 539ft/s 17.8G 2,423ft 11.3s 10s
OK AeroTech I327 105.2oz 79ft/s 521ft/s 13.8G 2,471ft 11.5s 10s
OK AMW I297 103.8oz 74ft/s 515ft/s 11.9G 2,480ft 11.6s 10s
OK AeroTech I366 102.6oz 89ft/s 530ft/s 16.1G 2,481ft 11.4s 10s
OK AeroTech I364 106.9oz 77ft/s 519ft/s 13.1G 2,491ft 11.6s 10s
OK Cesaroni I470 100.5oz 98ft/s 566ft/s 18.9G 2,517ft 11.4s 10s
OK Cesaroni I303 100.6oz 79ft/s 522ft/s 13.8G 2,524ft 11.7s 10s
OK Cesaroni I242 102.4oz 67ft/s 505ft/s 9.0G 2,558ft 12.0s 10s
OK AeroTech I280 104.7oz 73ft/s 522ft/s 10.6G 2,562ft 11.9s 10s
OK Cesaroni I125 105.8oz 57ft/s 405ft/s 8.1G 2,608ft 12.9s 8s
OK KBA I301 108.6oz 72ft/s 557ft/s 12.6G 2,638ft 11.8s 10s
OK KBA I550 108.1oz 96ft/s 631ft/s 22.2G 2,641ft 11.4s 10s
OK AeroTech I435 101.3oz 109ft/s 577ft/s 25.8G 2,654ft 11.6s 10s
OK Cesaroni I350 110.6oz 79ft/s 554ft/s 12.0G 2,677ft 12.0s 10s
OK AeroTech I284 102.6oz 88ft/s 554ft/s 16.1G 2,718ft 11.9s 10s
OK AeroTech I500 103.3oz 96ft/s 623ft/s 19.1G 2,861ft 11.9s 11s
warningsW Cesaroni I540 104.1oz 104ft/s 647ft/s 20.9G 2,903ft 12.0s 11s
OK AeroTech I600 104.2oz 118ft/s 644ft/s 27.3G 2,915ft 11.9s 11s
OK Loki J396 109.5oz 80ft/s 607ft/s 16.9G 2,917ft 12.2s 11s
OK AeroTech I350 104.7oz 82ft/s 624ft/s 15.8G 2,952ft 12.3s 11s
OK AeroTech J420 105.9oz 92ft/s 620ft/s 18.0G 2,953ft 12.2s 11s
OK Cesaroni I216 104.2oz 69ft/s 533ft/s 10.7G 2,954ft 12.7s 10s
OK Cesaroni J335 105.1oz 81ft/s 601ft/s 13.1G 2,966ft 12.4s 10s
OK KBA J740 108.5oz 118ft/s 677ft/s 30.1G 2,971ft 12.0s 11s
OK AeroTech J350 106.5oz 107ft/s 622ft/s 26.8G 2,974ft 12.1s 11s
OK Cesaroni J381 107.3oz 88ft/s 613ft/s 16.0G 2,974ft 12.3s 10s
OK AeroTech J340 103.4oz 93ft/s 611ft/s 19.9G 2,990ft 12.3s 10s
OK Cesaroni J285 104.0oz 76ft/s 585ft/s 11.7G 2,998ft 12.6s 10s
OK Cesaroni J270 106.1oz 67ft/s 579ft/s 9.2G 3,002ft 12.7s 10s
OK Cesaroni J316 104.4oz 79ft/s 591ft/s 14.1G 3,019ft 12.5s 10s
OK Cesaroni J357 104.2oz 87ft/s 623ft/s 16.8G 3,023ft 12.4s 11s
OK AeroTech J425 105.3oz 82ft/s 661ft/s 14.3G 3,097ft 12.5s 11s
OK Cesaroni J290 106.3oz 76ft/s 603ft/s 12.3G 3,132ft 12.8s 10s
OK Cesaroni J400 107.8oz 86ft/s 648ft/s 14.9G 3,150ft 12.6s 11s
OK AeroTech J270 105.6oz 75ft/s 606ft/s 11.2G 3,217ft 13.0s 10s
OK AeroTech J500 106.1oz 108ft/s 691ft/s 25.8G 3,250ft 12.5s 11s
OK Loki J528 109.3oz 113ft/s 712ft/s 32.6G 3,286ft 12.4s 11s
OK Cesaroni J330 107.8oz 86ft/s 666ft/s 14.4G 3,444ft 13.1s 11s
OK Cesaroni J410 108.9oz 88ft/s 698ft/s 15.9G 3,452ft 13.0s 11s
OK AeroTech J435 105.0oz 106ft/s 721ft/s 22.6G 3,468ft 12.8s 11s
OK Cesaroni J425 107.7oz 95ft/s 710ft/s 21.4G 3,482ft 12.9s 11s
OK Loki J712 109.5oz 116ft/s 771ft/s 27.9G 3,496ft 12.7s 12s
OK Loki J320 109.5oz 85ft/s 676ft/s 16.4G 3,612ft 13.4s 11s
OK Cesaroni J354 110.4oz 89ft/s 687ft/s 16.0G 3,623ft 13.3s 11s

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 (174ft)
failedG AeroTech G67 speed at end of launch guide too slow (36ft/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 (33ft/s)
failedG Loki G70 speed at end of launch guide too slow (38ft/s)
failedG Loki G94 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (33ft/s)
failedG Loki G80 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (33ft/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 (34ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (27ft/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 (35ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (25ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (181ft)
failedG AeroTech H73 speed at end of launch guide too slow (32ft/s)
failedG Loki H100 speed at end of launch guide too slow (45ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (44ft/s)
failedG Loki H90 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (47ft/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 (41ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (46ft/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 (27ft/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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