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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 95 motors that fit and appear to have enough thrust (639 motors didn't fit, 57 motors failed safety checks). 152 motor had thrust curves available and 316 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:   5FDP 38mm
Owner: Jim Lane
Body Diameter: 5.54in
Dry Weight: 128.0oz
MMT Diameter: 38.0mm
MMT Length: 20.00in
CD: 0.50

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
warningsW AeroTech H283 136.7oz 63ft/s 144ft/s 7.8G 346ft 4.9s 4s
OK AeroTech H130 136.4oz 53ft/s 127ft/s 5.8G 359ft 5.2s 4s
OK Contrail H246 149.1oz 69ft/s 143ft/s 11.8G 368ft 4.9s 4s
OK Contrail H141 149.6oz 51ft/s 139ft/s 5.4G 399ft 5.4s 4s
OK AeroTech H669 136.9oz 97ft/s 176ft/s 28.1G 436ft 5.2s 5s
OK Loki H144 139.9oz 52ft/s 145ft/s 5.4G 437ft 5.7s 4s
OK AeroTech H219 137.2oz 56ft/s 163ft/s 6.7G 453ft 5.6s 5s
OK AeroTech H242 137.3oz 51ft/s 162ft/s 5.2G 474ft 5.9s 4s
OK Loki H160 139.8oz 56ft/s 162ft/s 6.4G 501ft 5.9s 4s
OK Cesaroni H400 138.0oz 72ft/s 194ft/s 10.5G 539ft 5.9s 5s
OK Cesaroni H225 134.8oz 52ft/s 194ft/s 5.9G 597ft 6.4s 5s
OK AeroTech I218 141.1oz 56ft/s 209ft/s 6.3G 720ft 7.0s 6s
OK AeroTech I180 141.6oz 64ft/s 200ft/s 8.2G 750ft 7.1s 5s
OK AeroTech H550 139.4oz 89ft/s 241ft/s 15.7G 759ft 6.8s 6s
OK AeroTech H550 139.1oz 90ft/s 243ft/s 15.8G 763ft 6.8s 6s
warningsW Cesaroni H565 140.8oz 87ft/s 246ft/s 15.4G 773ft 6.9s 6s
OK AeroTech H999 139.7oz 119ft/s 256ft/s 40.4G 794ft 6.8s 6s
OK AeroTech I225 145.1oz 49ft/s 228ft/s 5.9G 846ft 7.7s 6s
OK AeroTech I245 140.9oz 70ft/s 234ft/s 9.6G 862ft 7.5s 6s
OK AeroTech I357 140.1oz 65ft/s 242ft/s 8.7G 868ft 7.5s 6s
OK Cesaroni I566 141.6oz 83ft/s 283ft/s 14.7G 959ft 7.6s 7s
OK Cesaroni I195 142.7oz 49ft/s 246ft/s 5.0G 981ft 8.3s 6s
OK Cesaroni I345 141.9oz 64ft/s 283ft/s 8.9G 1,044ft 8.1s 7s
OK AeroTech I285 145.4oz 64ft/s 276ft/s 8.3G 1,066ft 8.3s 7s
OK Cesaroni I236 142.1oz 54ft/s 270ft/s 6.9G 1,078ft 8.5s 7s
OK Cesaroni I800 144.1oz 99ft/s 320ft/s 21.3G 1,122ft 8.1s 8s
OK Cesaroni I223 145.4oz 49ft/s 276ft/s 5.3G 1,122ft 8.7s 7s
OK AeroTech I211 144.0oz 57ft/s 266ft/s 7.0G 1,128ft 8.7s 6s
OK AeroTech I195 148.2oz 60ft/s 268ft/s 7.8G 1,151ft 8.7s 6s
OK AeroTech I305 148.5oz 66ft/s 289ft/s 8.9G 1,161ft 8.5s 7s
OK AeroTech I300 143.6oz 67ft/s 292ft/s 10.7G 1,168ft 8.5s 7s
OK AeroTech I1299 142.9oz 136ft/s 336ft/s 37.1G 1,170ft 8.1s 8s
OK Loki I316 147.0oz 76ft/s 310ft/s 11.3G 1,289ft 8.8s 7s
OK Cesaroni I287 149.3oz 56ft/s 317ft/s 7.3G 1,317ft 9.2s 7s
OK Loki I210 147.0oz 65ft/s 293ft/s 9.8G 1,340ft 9.2s 7s
OK Loki I405 147.2oz 90ft/s 340ft/s 18.6G 1,395ft 9.0s 8s
OK Cesaroni I285 145.8oz 59ft/s 329ft/s 7.7G 1,416ft 9.5s 8s
OK Cesaroni I255 146.2oz 58ft/s 326ft/s 6.8G 1,434ft 9.6s 8s
OK Loki I430 147.0oz 74ft/s 364ft/s 12.0G 1,475ft 9.3s 8s
OK Loki I377 147.8oz 84ft/s 347ft/s 15.0G 1,478ft 9.3s 8s
OK AMW I297 148.8oz 61ft/s 347ft/s 8.0G 1,510ft 9.6s 8s
OK AeroTech I327 150.2oz 67ft/s 353ft/s 9.3G 1,514ft 9.6s 8s
OK AeroTech I366 147.6oz 73ft/s 358ft/s 10.9G 1,520ft 9.5s 8s
OK AeroTech I364 151.9oz 65ft/s 353ft/s 8.9G 1,532ft 9.6s 8s
OK Cesaroni I303 145.6oz 62ft/s 350ft/s 9.2G 1,535ft 9.7s 8s
OK Cesaroni I242 147.4oz 53ft/s 338ft/s 6.0G 1,543ft 10.0s 8s
OK Cesaroni I470 145.5oz 77ft/s 382ft/s 12.8G 1,551ft 9.4s 8s
OK AeroTech I280 149.7oz 60ft/s 352ft/s 7.1G 1,564ft 9.9s 8s
OK AeroTech I435 146.3oz 90ft/s 393ft/s 17.6G 1,664ft 9.7s 8s
OK KBA I301 153.6oz 62ft/s 376ft/s 8.6G 1,671ft 10.0s 8s
OK Cesaroni I350 155.6oz 64ft/s 380ft/s 8.3G 1,672ft 10.0s 8s
OK AeroTech I284 147.6oz 72ft/s 376ft/s 10.9G 1,698ft 10.0s 8s
OK KBA I550 153.1oz 82ft/s 427ft/s 14.9G 1,700ft 9.7s 9s
OK AeroTech I500 148.3oz 81ft/s 425ft/s 13.0G 1,822ft 10.1s 9s
OK Cesaroni I216 149.2oz 56ft/s 361ft/s 7.2G 1,838ft 10.8s 8s
OK Loki J396 154.5oz 66ft/s 419ft/s 11.6G 1,859ft 10.3s 9s
warningsW Cesaroni I540 149.1oz 84ft/s 442ft/s 14.2G 1,860ft 10.1s 9s
OK AeroTech I600 149.2oz 97ft/s 442ft/s 18.7G 1,875ft 10.1s 9s
OK AeroTech I350 149.7oz 71ft/s 426ft/s 10.7G 1,882ft 10.4s 9s
OK Cesaroni J335 150.1oz 66ft/s 410ft/s 8.8G 1,882ft 10.5s 9s
OK Cesaroni J270 151.1oz 56ft/s 393ft/s 6.1G 1,887ft 10.8s 8s
OK AeroTech J420 150.9oz 77ft/s 426ft/s 12.3G 1,888ft 10.4s 9s
OK Cesaroni J285 149.0oz 63ft/s 398ft/s 7.8G 1,894ft 10.7s 8s
OK Cesaroni J381 152.3oz 73ft/s 422ft/s 10.9G 1,906ft 10.5s 9s
OK Cesaroni J316 149.4oz 67ft/s 404ft/s 9.5G 1,909ft 10.6s 8s
OK AeroTech J340 148.4oz 73ft/s 418ft/s 13.6G 1,917ft 10.4s 8s
OK AeroTech J350 151.5oz 88ft/s 429ft/s 18.5G 1,918ft 10.3s 9s
OK KBA J740 153.5oz 98ft/s 470ft/s 20.9G 1,921ft 10.1s 9s
OK Cesaroni J357 149.2oz 71ft/s 426ft/s 11.4G 1,931ft 10.5s 9s
OK AeroTech J425 150.3oz 67ft/s 451ft/s 9.7G 1,991ft 10.6s 9s
OK Cesaroni J290 151.3oz 63ft/s 412ft/s 8.3G 2,000ft 10.9s 9s
OK Cesaroni J400 152.8oz 71ft/s 447ft/s 10.2G 2,040ft 10.7s 9s
OK AeroTech J270 150.6oz 59ft/s 414ft/s 7.5G 2,063ft 11.1s 9s
OK AeroTech J520 155.2oz 105ft/s 464ft/s 22.6G 2,082ft 10.6s 9s
OK AeroTech J500 151.1oz 89ft/s 478ft/s 17.8G 2,134ft 10.7s 9s
OK Loki J528 154.3oz 95ft/s 497ft/s 22.8G 2,174ft 10.7s 9s
OK Cesaroni J330 152.8oz 71ft/s 461ft/s 9.8G 2,258ft 11.3s 9s
OK AeroTech J575 160.2oz 97ft/s 512ft/s 18.6G 2,274ft 10.8s 10s
OK Cesaroni J410 153.9oz 74ft/s 485ft/s 10.9G 2,278ft 11.2s 9s
OK AeroTech J435 150.0oz 86ft/s 498ft/s 15.5G 2,299ft 11.1s 9s
OK Cesaroni J425 152.7oz 81ft/s 493ft/s 14.8G 2,311ft 11.2s 9s
OK Loki J712 154.5oz 95ft/s 538ft/s 19.5G 2,338ft 11.0s 10s
OK Loki J320 154.5oz 70ft/s 471ft/s 11.3G 2,382ft 11.6s 9s
OK Cesaroni J354 155.4oz 70ft/s 480ft/s 11.0G 2,407ft 11.6s 9s
OK Cesaroni J520 158.0oz 81ft/s 535ft/s 13.9G 2,455ft 11.4s 10s
OK Cesaroni J580 164.8oz 80ft/s 554ft/s 13.6G 2,541ft 11.6s 10s
OK AeroTech J825 158.9oz 111ft/s 640ft/s 25.6G 2,758ft 11.6s 10s
OK Cesaroni J150 161.5oz 49ft/s 378ft/s 6.2G 2,780ft 13.9s 8s
OK Cesaroni J394 161.1oz 67ft/s 559ft/s 8.9G 2,819ft 12.3s 10s
OK Cesaroni J595 158.5oz 91ft/s 606ft/s 19.6G 2,845ft 11.9s 10s
OK Cesaroni J600 160.0oz 90ft/s 622ft/s 15.3G 2,864ft 12.0s 10s
OK Cesaroni J453 162.0oz 80ft/s 578ft/s 15.1G 2,924ft 12.3s 10s
OK Cesaroni J420 158.8oz 84ft/s 571ft/s 16.7G 2,927ft 12.3s 10s
OK AeroTech J570 159.8oz 108ft/s 593ft/s 24.9G 2,956ft 12.0s 10s
OK Cesaroni J530 162.5oz 94ft/s 639ft/s 16.8G 3,164ft 12.4s 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 Contrail G130 speed at end of launch guide too slow (43ft/s)
failedA AeroTech G339 rocket doesn't reach a safe altitude (123ft)
failedG AeroTech G67 speed at end of launch guide too slow (26ft/s)
failedG Loki G69 speed at end of launch guide too slow (27ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (24ft/s)
failedA Contrail G234 rocket doesn't reach a safe altitude (115ft)
failedG Loki G70 speed at end of launch guide too slow (29ft/s)
failedG Loki G94 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (23ft/s)
failedG Loki G80 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (16ft/s)
failedG Cesaroni G185 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (25ft/s)
failedG Loki G66 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (25ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (18ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (26ft/s)
failedG Contrail G123 speed at end of launch guide too slow (43ft/s)
failedG Contrail G100 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (16ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (87ft)
failedA Contrail H222 rocket doesn't reach a safe altitude (204ft)
failedA Contrail H300 rocket doesn't reach a safe altitude (207ft)
failedA Contrail H303 rocket doesn't reach a safe altitude (234ft)
failedG AeroTech H73 speed at end of launch guide too slow (24ft/s)
failedG Loki H100 speed at end of launch guide too slow (36ft/s)
failedG AeroTech H148 speed at end of launch guide too slow (45ft/s)
failedG AeroTech H123 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (35ft/s)
failedG Loki H90 speed at end of launch guide too slow (36ft/s)
failedG Loki H125 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni H152 speed at end of launch guide too slow (43ft/s)
failedG AeroTech H178 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (32ft/s)
failedG AeroTech H170 speed at end of launch guide too slow (44ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (25ft/s)
failedG AeroTech I161 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I140 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni I180 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni I212 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni I170 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (17ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (19ft/s)
failedG Cesaroni I175 speed at end of launch guide too slow (44ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (39ft/s)
failedG Loki I110 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni I125 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (35ft/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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