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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 93 motors that fit and appear to have enough thrust (623 motors didn't fit, 75 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:   The Bigger Cletus
Owner: Kevin Katz
Body Diameter: 5.54in
Dry Weight: 135.0oz
MMT Diameter: 38.0mm
MMT Length: 30.00in
CD: 0.75

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 H211 156.2oz 62ft/s 121ft/s 13.5G 284ft 4.4s 3s
warningsW AeroTech H283 143.7oz 52ft/s 135ft/s 7.4G 301ft 4.5s 4s
OK Contrail H246 156.1oz 61ft/s 135ft/s 11.3G 323ft 4.6s 4s
OK AeroTech H669 143.9oz 83ft/s 166ft/s 26.6G 378ft 4.8s 4s
OK Contrail H248 163.0oz 57ft/s 149ft/s 14.3G 400ft 5.2s 4s
OK Loki H160 146.8oz 48ft/s 150ft/s 6.1G 433ft 5.5s 4s
OK Cesaroni H400 145.0oz 60ft/s 183ft/s 9.9G 463ft 5.5s 5s
OK Contrail H277 160.0oz 62ft/s 172ft/s 16.0G 500ft 5.7s 5s
OK Contrail H340 163.8oz 63ft/s 183ft/s 18.7G 526ft 5.8s 5s
OK Contrail I500 163.2oz 85ft/s 210ft/s 21.4G 620ft 6.1s 5s
OK AeroTech I180 148.6oz 55ft/s 184ft/s 7.8G 640ft 6.6s 5s
OK AeroTech H550 146.4oz 74ft/s 227ft/s 14.9G 643ft 6.2s 6s
OK AeroTech H550 146.1oz 74ft/s 228ft/s 14.9G 646ft 6.2s 6s
warningsW Cesaroni H565 147.8oz 72ft/s 232ft/s 14.4G 655ft 6.3s 6s
OK AeroTech H999 146.7oz 99ft/s 242ft/s 38.4G 671ft 6.2s 6s
OK Contrail I221 160.0oz 59ft/s 194ft/s 9.8G 676ft 6.7s 5s
OK AeroTech I245 147.9oz 57ft/s 216ft/s 9.0G 728ft 6.9s 5s
OK AeroTech I357 147.1oz 55ft/s 225ft/s 8.3G 733ft 6.9s 5s
OK Cesaroni I566 148.6oz 71ft/s 266ft/s 13.8G 804ft 6.9s 6s
OK Cesaroni I345 148.9oz 55ft/s 264ft/s 8.4G 874ft 7.4s 6s
OK Contrail I250 160.5oz 56ft/s 239ft/s 11.8G 885ft 7.5s 6s
OK Contrail I747 164.6oz 117ft/s 282ft/s 40.5G 892ft 7.1s 7s
OK AeroTech I285 152.4oz 53ft/s 257ft/s 7.9G 894ft 7.5s 6s
OK Cesaroni I800 151.1oz 82ft/s 302ft/s 19.8G 932ft 7.3s 7s
OK AeroTech I211 151.0oz 48ft/s 244ft/s 6.6G 944ft 7.9s 6s
OK AeroTech I195 155.2oz 51ft/s 247ft/s 7.4G 965ft 8.0s 6s
OK AeroTech I1299 149.9oz 115ft/s 318ft/s 35.1G 968ft 7.3s 7s
OK AeroTech I305 155.5oz 54ft/s 268ft/s 8.4G 970ft 7.7s 6s
OK AeroTech I300 150.6oz 57ft/s 270ft/s 10.1G 974ft 7.8s 6s
OK Loki I316 154.0oz 62ft/s 287ft/s 10.7G 1,071ft 8.0s 6s
OK Loki I210 154.0oz 54ft/s 269ft/s 9.3G 1,114ft 8.3s 6s
OK Loki I405 154.2oz 77ft/s 316ft/s 17.7G 1,151ft 8.1s 7s
OK Cesaroni I285 152.8oz 49ft/s 303ft/s 7.3G 1,169ft 8.5s 7s
OK Cesaroni I255 153.2oz 49ft/s 299ft/s 6.4G 1,185ft 8.7s 7s
OK Loki I430 154.0oz 61ft/s 339ft/s 11.4G 1,213ft 8.4s 7s
OK Loki I377 154.8oz 72ft/s 320ft/s 14.3G 1,218ft 8.4s 7s
OK AMW I297 155.8oz 51ft/s 320ft/s 7.6G 1,245ft 8.7s 7s
OK AeroTech I327 157.2oz 56ft/s 327ft/s 8.9G 1,247ft 8.6s 7s
OK AeroTech I366 154.6oz 62ft/s 331ft/s 10.3G 1,249ft 8.5s 7s
OK AeroTech I364 158.9oz 54ft/s 326ft/s 8.3G 1,261ft 8.7s 7s
OK Cesaroni I303 152.6oz 54ft/s 322ft/s 8.7G 1,262ft 8.7s 7s
OK Cesaroni I470 152.5oz 66ft/s 356ft/s 12.1G 1,269ft 8.4s 7s
OK AeroTech I280 156.7oz 50ft/s 324ft/s 6.7G 1,287ft 8.9s 7s
OK AeroTech I435 153.3oz 77ft/s 364ft/s 16.7G 1,357ft 8.6s 7s
OK KBA I301 160.6oz 51ft/s 346ft/s 8.1G 1,366ft 8.9s 7s
OK Cesaroni I350 162.6oz 54ft/s 351ft/s 7.9G 1,373ft 9.0s 7s
OK KBA I550 160.1oz 66ft/s 398ft/s 13.9G 1,378ft 8.6s 8s
OK AeroTech I284 154.6oz 61ft/s 346ft/s 10.3G 1,388ft 9.0s 7s
OK AeroTech I500 155.3oz 65ft/s 395ft/s 12.3G 1,478ft 9.0s 8s
warningsW Cesaroni I540 156.1oz 71ft/s 411ft/s 13.5G 1,505ft 9.0s 8s
OK Loki J396 161.5oz 57ft/s 387ft/s 10.9G 1,513ft 9.2s 8s
OK AeroTech I600 156.2oz 82ft/s 411ft/s 17.9G 1,517ft 9.0s 8s
OK AeroTech I350 156.7oz 59ft/s 393ft/s 10.1G 1,527ft 9.2s 8s
OK AeroTech J420 157.9oz 66ft/s 393ft/s 11.7G 1,532ft 9.2s 8s
OK Cesaroni J335 157.1oz 57ft/s 377ft/s 8.4G 1,532ft 9.4s 7s
OK Cesaroni J285 156.0oz 53ft/s 365ft/s 7.4G 1,542ft 9.5s 7s
OK Cesaroni J381 159.3oz 60ft/s 389ft/s 10.4G 1,549ft 9.3s 7s
OK KBA J740 160.5oz 83ft/s 441ft/s 19.6G 1,552ft 9.0s 8s
OK Cesaroni J316 156.4oz 56ft/s 370ft/s 9.1G 1,555ft 9.5s 7s
OK AeroTech J350 158.5oz 75ft/s 396ft/s 17.7G 1,555ft 9.2s 8s
OK AeroTech J340 155.4oz 63ft/s 384ft/s 12.9G 1,556ft 9.3s 7s
OK Cesaroni J357 156.2oz 59ft/s 391ft/s 10.8G 1,567ft 9.4s 8s
OK AeroTech J425 157.3oz 55ft/s 417ft/s 9.1G 1,610ft 9.5s 8s
OK Cesaroni J290 158.3oz 53ft/s 376ft/s 7.9G 1,626ft 9.8s 7s
OK Cesaroni J400 159.8oz 60ft/s 411ft/s 9.6G 1,651ft 9.6s 8s
OK AeroTech J270 157.6oz 50ft/s 377ft/s 7.2G 1,675ft 10.0s 7s
OK AeroTech J520 162.2oz 87ft/s 429ft/s 21.6G 1,680ft 9.4s 8s
OK AeroTech J500 158.1oz 75ft/s 440ft/s 17.0G 1,717ft 9.5s 8s
OK Loki J528 161.3oz 81ft/s 461ft/s 21.8G 1,746ft 9.4s 8s
OK Cesaroni J330 159.8oz 59ft/s 421ft/s 9.4G 1,821ft 10.1s 8s
OK AeroTech J575 167.2oz 82ft/s 475ft/s 17.7G 1,823ft 9.6s 8s
OK Cesaroni J410 160.9oz 63ft/s 444ft/s 10.4G 1,833ft 10.0s 8s
OK AeroTech J435 157.0oz 73ft/s 457ft/s 14.8G 1,843ft 9.8s 8s
OK Cesaroni J425 159.7oz 66ft/s 452ft/s 14.1G 1,856ft 9.9s 8s
OK Loki J712 161.5oz 82ft/s 500ft/s 18.6G 1,868ft 9.7s 9s
OK Loki J320 161.5oz 59ft/s 428ft/s 10.8G 1,921ft 10.3s 8s
OK Cesaroni J354 162.4oz 61ft/s 435ft/s 10.5G 1,938ft 10.3s 8s
OK Cesaroni J520 165.0oz 66ft/s 493ft/s 13.3G 1,963ft 10.1s 8s
OK Cesaroni J580 171.8oz 68ft/s 511ft/s 13.0G 2,031ft 10.2s 9s
OK Loki J650 175.3oz 74ft/s 534ft/s 16.1G 2,115ft 10.2s 9s
OK AeroTech J825 165.9oz 92ft/s 592ft/s 24.5G 2,178ft 10.1s 9s
OK Cesaroni J394 168.1oz 56ft/s 507ft/s 8.5G 2,251ft 10.9s 8s
OK Cesaroni J595 165.5oz 77ft/s 553ft/s 18.8G 2,254ft 10.5s 9s
OK Cesaroni J600 167.0oz 76ft/s 570ft/s 14.6G 2,268ft 10.5s 9s
OK Cesaroni J453 169.0oz 69ft/s 525ft/s 14.5G 2,328ft 10.8s 8s
OK Cesaroni J420 165.8oz 72ft/s 519ft/s 16.0G 2,330ft 10.8s 8s
OK AeroTech J570 166.8oz 90ft/s 540ft/s 23.8G 2,344ft 10.6s 9s
OK Cesaroni J530 169.5oz 80ft/s 582ft/s 16.1G 2,501ft 10.9s 9s
OK Loki J1000 175.3oz 102ft/s 693ft/s 27.7G 2,598ft 10.7s 10s
OK AeroTech J510 173.1oz 82ft/s 587ft/s 20.6G 2,607ft 11.1s 9s
OK Loki J1026 176.3oz 92ft/s 721ft/s 23.3G 2,680ft 10.9s 10s
OK Loki K1127 176.3oz 97ft/s 713ft/s 26.9G 2,701ft 10.9s 10s
OK Loki K627 178.6oz 85ft/s 709ft/s 18.9G 3,180ft 11.8s 9s

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 (37ft/s)
failedA AeroTech G339 rocket doesn't reach a safe altitude (109ft)
failedG AeroTech G67 speed at end of launch guide too slow (22ft/s)
failedG Loki G69 speed at end of launch guide too slow (23ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (20ft/s)
failedA Contrail G234 rocket doesn't reach a safe altitude (103ft)
failedG Loki G70 speed at end of launch guide too slow (24ft/s)
failedG Loki G94 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (19ft/s)
failedG Loki G80 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (13ft/s)
failedG Cesaroni G185 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (20ft/s)
failedG Loki G66 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (20ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (20ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (15ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (28ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (22ft/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 (13ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (78ft)
failedA Contrail H222 rocket doesn't reach a safe altitude (181ft)
failedA Contrail H300 rocket doesn't reach a safe altitude (184ft)
failedA Contrail H303 rocket doesn't reach a safe altitude (208ft)
failedG AeroTech H73 speed at end of launch guide too slow (19ft/s)
failedG Loki H100 speed at end of launch guide too slow (30ft/s)
failedG AeroTech H148 speed at end of launch guide too slow (38ft/s)
failedG AeroTech H130 speed at end of launch guide too slow (45ft/s)
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 (43ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (28ft/s)
failedG AeroTech H219 speed at end of launch guide too slow (47ft/s)
failedG Loki H90 speed at end of launch guide too slow (31ft/s)
failedG Loki H144 speed at end of launch guide too slow (43ft/s)
failedG Loki H125 speed at end of launch guide too slow (37ft/s)
failedG Contrail H141 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (31ft/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 (44ft/s)
failedG Cesaroni H152 speed at end of launch guide too slow (36ft/s)
failedG AeroTech H178 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (27ft/s)
failedG AeroTech H170 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (20ft/s)
failedG AeroTech I161 speed at end of launch guide too slow (39ft/s)
failedG AeroTech I218 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I140 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni I180 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni I212 speed at end of launch guide too slow (40ft/s)
failedG AeroTech I225 speed at end of launch guide too slow (41ft/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 (39ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (13ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (15ft/s)
failedG Cesaroni I175 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni I236 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni I223 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni I287 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (32ft/s)
failedG Loki I110 speed at end of launch guide too slow (34ft/s)
failedG Contrail I155 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni I242 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni I125 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni I216 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni J270 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni J150 speed at end of launch guide too slow (41ft/s)

G These simulations were run with a launch guide length of 6ft (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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