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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 96 motors that fit and appear to have enough thrust (623 motors didn't fit, 72 motors failed safety checks). 168 motor had thrust curves available and 344 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:   Shadow XXL 5.5 .25 38mm
Owner: Jim Lane
Body Diameter: 5.54in
Dry Weight: 165.0oz
MMT Diameter: 38.0mm
MMT Length: 34.00in
CD: 0.67

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 AeroTech H669 173.9oz 86ft/s 136ft/s 21.9G 280ft 4.2s 4s
OK AeroTech H219 174.2oz 50ft/s 122ft/s 5.0G 282ft 4.6s 3s
OK Contrail H248 193.0oz 57ft/s 122ft/s 11.9G 300ft 4.6s 3s
OK Loki H160 176.8oz 48ft/s 120ft/s 4.9G 315ft 4.9s 3s
OK Cesaroni H400 175.0oz 63ft/s 149ft/s 8.1G 346ft 4.9s 4s
OK Contrail H277 190.0oz 59ft/s 142ft/s 13.3G 381ft 5.2s 4s
OK Contrail H340 193.8oz 61ft/s 152ft/s 15.7G 406ft 5.3s 4s
OK AeroTech I218 178.1oz 49ft/s 158ft/s 4.8G 464ft 5.9s 4s
OK AeroTech I180 178.6oz 56ft/s 150ft/s 6.3G 488ft 6.0s 4s
OK Contrail I500 193.2oz 87ft/s 176ft/s 17.9G 493ft 5.6s 5s
OK AeroTech H550 176.4oz 78ft/s 187ft/s 12.2G 505ft 5.7s 5s
OK AeroTech H550 176.1oz 78ft/s 188ft/s 12.2G 508ft 5.7s 5s
warningsW Cesaroni H565 177.8oz 76ft/s 191ft/s 12.0G 516ft 5.8s 5s
OK Contrail I221 190.0oz 61ft/s 160ft/s 8.1G 529ft 6.1s 4s
OK AeroTech H999 176.7oz 104ft/s 200ft/s 31.7G 535ft 5.7s 5s
OK AeroTech I245 177.9oz 60ft/s 178ft/s 7.4G 572ft 6.3s 5s
OK AeroTech I357 177.1oz 57ft/s 184ft/s 6.7G 575ft 6.3s 5s
OK Cesaroni I566 178.6oz 74ft/s 220ft/s 11.5G 652ft 6.4s 6s
OK Cesaroni I345 178.9oz 57ft/s 218ft/s 6.8G 708ft 6.9s 6s
OK Contrail I250 190.5oz 59ft/s 200ft/s 9.8G 720ft 7.0s 5s
OK Cesaroni I236 179.1oz 48ft/s 205ft/s 5.2G 723ft 7.2s 5s
OK AeroTech I285 182.4oz 56ft/s 213ft/s 6.4G 725ft 7.1s 6s
OK Contrail I747 194.6oz 120ft/s 239ft/s 34.1G 750ft 6.7s 6s
OK AeroTech I211 181.0oz 50ft/s 202ft/s 5.4G 762ft 7.4s 5s
OK Cesaroni I800 181.1oz 88ft/s 251ft/s 16.7G 781ft 6.9s 6s
OK AeroTech I195 185.2oz 52ft/s 205ft/s 6.0G 784ft 7.5s 5s
OK AeroTech I300 180.6oz 59ft/s 225ft/s 8.3G 802ft 7.3s 6s
OK AeroTech I305 185.5oz 57ft/s 224ft/s 6.9G 803ft 7.3s 6s
OK AeroTech I1299 179.9oz 120ft/s 264ft/s 29.1G 822ft 6.9s 7s
OK Loki I316 184.0oz 68ft/s 241ft/s 8.8G 903ft 7.6s 6s
OK Cesaroni I287 186.3oz 50ft/s 245ft/s 5.6G 916ft 7.9s 6s
OK Loki I210 184.0oz 56ft/s 226ft/s 7.6G 932ft 8.0s 6s
OK Cesaroni I285 182.8oz 52ft/s 253ft/s 5.9G 988ft 8.2s 6s
OK Loki I405 184.2oz 79ft/s 267ft/s 14.7G 993ft 7.8s 7s
OK Cesaroni I255 183.2oz 51ft/s 251ft/s 5.2G 999ft 8.3s 6s
OK Loki I430 184.0oz 65ft/s 284ft/s 9.4G 1,049ft 8.1s 7s
OK Loki I377 184.8oz 72ft/s 271ft/s 11.8G 1,055ft 8.1s 7s
OK AMW I297 185.8oz 54ft/s 269ft/s 6.2G 1,070ft 8.4s 6s
OK AeroTech I327 187.2oz 58ft/s 275ft/s 7.3G 1,078ft 8.4s 7s
OK AeroTech I366 184.6oz 65ft/s 279ft/s 8.5G 1,084ft 8.3s 7s
OK Cesaroni I303 182.6oz 56ft/s 271ft/s 7.1G 1,086ft 8.5s 7s
OK AeroTech I364 188.9oz 57ft/s 276ft/s 6.9G 1,094ft 8.4s 7s
OK AeroTech I280 186.7oz 53ft/s 273ft/s 5.5G 1,108ft 8.7s 7s
OK Cesaroni I470 182.5oz 69ft/s 299ft/s 10.0G 1,112ft 8.2s 7s
OK AeroTech I435 183.3oz 79ft/s 308ft/s 13.8G 1,208ft 8.5s 7s
OK Cesaroni I350 192.6oz 56ft/s 298ft/s 6.5G 1,208ft 8.8s 7s
OK KBA I301 190.6oz 55ft/s 293ft/s 6.7G 1,209ft 8.8s 7s
OK AeroTech I284 184.6oz 64ft/s 294ft/s 8.5G 1,226ft 8.8s 7s
OK KBA I550 190.1oz 71ft/s 334ft/s 11.7G 1,249ft 8.6s 8s
OK Cesaroni I216 186.2oz 49ft/s 280ft/s 5.5G 1,317ft 9.5s 6s
OK AeroTech I500 185.3oz 69ft/s 334ft/s 10.2G 1,336ft 8.9s 8s
OK Cesaroni J270 188.1oz 49ft/s 306ft/s 4.7G 1,363ft 9.6s 7s
OK Loki J396 191.5oz 58ft/s 330ft/s 9.2G 1,365ft 9.2s 8s
warningsW Cesaroni I540 186.1oz 77ft/s 349ft/s 11.2G 1,371ft 9.0s 8s
OK Cesaroni J335 187.1oz 60ft/s 322ft/s 6.9G 1,374ft 9.3s 7s
OK Cesaroni J285 186.0oz 54ft/s 311ft/s 6.1G 1,376ft 9.4s 7s
OK AeroTech I350 186.7oz 63ft/s 335ft/s 8.4G 1,379ft 9.2s 8s
OK AeroTech I600 186.2oz 85ft/s 350ft/s 14.8G 1,386ft 9.0s 8s
OK AeroTech J420 187.9oz 69ft/s 335ft/s 9.7G 1,388ft 9.2s 8s
OK Cesaroni J316 186.4oz 58ft/s 316ft/s 7.4G 1,391ft 9.4s 7s
OK Cesaroni J381 189.3oz 65ft/s 332ft/s 8.6G 1,402ft 9.3s 7s
OK AeroTech J340 185.4oz 65ft/s 328ft/s 10.7G 1,409ft 9.3s 7s
OK Cesaroni J357 186.2oz 62ft/s 334ft/s 8.9G 1,417ft 9.4s 8s
OK AeroTech J350 188.5oz 78ft/s 339ft/s 14.7G 1,420ft 9.2s 8s
OK KBA J740 190.5oz 91ft/s 374ft/s 16.7G 1,431ft 9.0s 8s
OK Cesaroni J290 188.3oz 54ft/s 323ft/s 6.5G 1,465ft 9.7s 7s
OK AeroTech J425 187.3oz 59ft/s 354ft/s 7.6G 1,468ft 9.5s 8s
OK Cesaroni J400 189.8oz 63ft/s 353ft/s 8.0G 1,513ft 9.6s 8s
OK AeroTech J270 187.6oz 53ft/s 324ft/s 5.9G 1,514ft 9.9s 7s
OK AeroTech J520 192.2oz 95ft/s 370ft/s 18.1G 1,566ft 9.4s 8s
OK AeroTech J500 188.1oz 78ft/s 379ft/s 14.1G 1,602ft 9.6s 8s
OK Loki J528 191.3oz 85ft/s 396ft/s 18.2G 1,644ft 9.6s 8s
OK Cesaroni J330 189.8oz 62ft/s 364ft/s 7.7G 1,689ft 10.2s 8s
OK Cesaroni J410 190.9oz 65ft/s 384ft/s 8.6G 1,715ft 10.1s 8s
OK AeroTech J435 187.0oz 74ft/s 395ft/s 12.2G 1,736ft 10.0s 8s
OK AeroTech J575 197.2oz 88ft/s 411ft/s 14.9G 1,739ft 9.8s 8s
OK Cesaroni J425 189.7oz 70ft/s 391ft/s 11.7G 1,747ft 10.1s 8s
OK Loki J712 191.5oz 87ft/s 429ft/s 15.5G 1,782ft 9.9s 9s
OK Loki J320 191.5oz 62ft/s 373ft/s 8.9G 1,791ft 10.5s 8s
OK Cesaroni J354 192.4oz 62ft/s 381ft/s 8.7G 1,819ft 10.5s 8s
OK Cesaroni J520 195.0oz 71ft/s 428ft/s 11.1G 1,879ft 10.3s 9s
OK Cesaroni J580 201.8oz 74ft/s 445ft/s 10.9G 1,957ft 10.5s 9s
OK Loki J650 205.3oz 79ft/s 467ft/s 14.4G 2,061ft 10.6s 9s
OK AeroTech J825 195.9oz 101ft/s 514ft/s 20.6G 2,156ft 10.6s 9s
OK Cesaroni J394 198.1oz 59ft/s 447ft/s 7.0G 2,175ft 11.3s 9s
OK Cesaroni J595 195.5oz 80ft/s 487ft/s 15.7G 2,222ft 10.9s 9s
OK Cesaroni J600 197.0oz 79ft/s 500ft/s 12.2G 2,239ft 11.0s 9s
OK Cesaroni J420 195.8oz 74ft/s 460ft/s 13.4G 2,279ft 11.2s 9s
OK Cesaroni J453 199.0oz 73ft/s 465ft/s 12.1G 2,281ft 11.3s 9s
OK AeroTech J570 196.8oz 98ft/s 479ft/s 20.0G 2,320ft 11.0s 9s
OK Cesaroni J530 199.5oz 84ft/s 516ft/s 13.5G 2,500ft 11.5s 9s
OK AeroTech J510 203.1oz 87ft/s 526ft/s 17.4G 2,618ft 11.7s 9s
OK Loki J1000 205.3oz 108ft/s 611ft/s 23.5G 2,653ft 11.4s 10s
OK Loki J1026 206.3oz 103ft/s 636ft/s 19.7G 2,748ft 11.6s 10s
OK Loki K1127 206.3oz 103ft/s 632ft/s 22.8G 2,778ft 11.6s 10s
OK Loki K627 208.6oz 86ft/s 646ft/s 16.1G 3,292ft 12.7s 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 (35ft/s)
failedA AeroTech G339 rocket doesn't reach a safe altitude (74ft)
failedG AeroTech G67 speed at end of launch guide too slow (20ft/s)
failedG Loki G69 speed at end of launch guide too slow (21ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (18ft/s)
failedA Contrail G234 rocket doesn't reach a safe altitude (72ft)
failedG Loki G70 speed at end of launch guide too slow (23ft/s)
failedG Loki G94 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (17ft/s)
failedG Loki G80 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (6ft/s)
failedG Cesaroni G185 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (21ft/s)
failedG Loki G66 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (19ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (19ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (13ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (21ft/s)
failedG Contrail G123 speed at end of launch guide too slow (36ft/s)
failedG Contrail G100 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (9ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (55ft)
failedA Contrail H222 rocket doesn't reach a safe altitude (128ft)
failedA Contrail H300 rocket doesn't reach a safe altitude (132ft)
failedA Contrail H303 rocket doesn't reach a safe altitude (150ft)
failedG AeroTech H73 speed at end of launch guide too slow (18ft/s)
failedG Loki H100 speed at end of launch guide too slow (30ft/s)
failedA AeroTech H283 rocket doesn't reach a safe altitude (214ft)
failedG AeroTech H148 speed at end of launch guide too slow (38ft/s)
failedA Contrail H211 rocket doesn't reach a safe altitude (206ft)
failedG AeroTech H130 speed at end of launch guide too slow (45ft/s)
failedA Contrail H246 rocket doesn't reach a safe altitude (237ft)
failedG AeroTech H123 speed at end of launch guide too slow (31ft/s)
failedG Contrail H121 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (28ft/s)
failedG AeroTech H242 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (30ft/s)
failedG Loki H90 speed at end of launch guide too slow (30ft/s)
failedG Loki H144 speed at end of launch guide too slow (44ft/s)
failedG Loki H125 speed at end of launch guide too slow (38ft/s)
failedG Contrail H141 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (32ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni H225 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni H152 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H178 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (26ft/s)
failedG AeroTech H170 speed at end of launch guide too slow (38ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (19ft/s)
failedG AeroTech I161 speed at end of launch guide too slow (40ft/s)
failedG AeroTech I140 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni I180 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni I212 speed at end of launch guide too slow (41ft/s)
failedG AeroTech I225 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni I195 speed at end of launch guide too slow (42ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni I170 speed at end of launch guide too slow (41ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (11ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (13ft/s)
failedG Cesaroni I175 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni I223 speed at end of launch guide too slow (43ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (33ft/s)
failedG Loki I110 speed at end of launch guide too slow (35ft/s)
failedG Contrail I155 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni I242 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni I125 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni J150 speed at end of launch guide too slow (42ft/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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