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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 143 motors that fit and appear to have enough thrust (649 motors didn't fit, 10 motors failed safety checks). 153 motor had thrust curves available and 319 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:   Mega Der Rico Max
Owner: KenRico
Body Diameter: 4.00in
Dry Weight: 45.5oz
MMT Diameter: 38.0mm
MMT Length: 20.00in
CD: 0.65

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 G300 64.7oz 137ft/s 171ft/s 44.3G 394ft 4.8s 5s
OK Contrail G130 63.7oz 77ft/s 156ft/s 29.3G 400ft 5.1s 4s
OK Contrail G234 64.7oz 120ft/s 192ft/s 29.3G 507ft 5.5s 5s
OK Loki G69 54.0oz 53ft/s 178ft/s 5.5G 543ft 6.1s 5s
OK AeroTech G61 52.3oz 48ft/s 174ft/s 4.5G 551ft 6.3s 4s
OK AeroTech G67 52.6oz 50ft/s 185ft/s 5.2G 555ft 6.3s 5s
OK Loki G70 54.0oz 53ft/s 187ft/s 5.7G 599ft 6.5s 5s
OK AeroTech G339 51.9oz 113ft/s 237ft/s 25.1G 613ft 5.9s 6s
OK Loki G80 54.5oz 58ft/s 197ft/s 6.4G 615ft 6.4s 5s
OK Loki G94 54.0oz 63ft/s 210ft/s 7.7G 648ft 6.5s 5s
OK Contrail G123 63.5oz 75ft/s 214ft/s 19.2G 668ft 6.4s 5s
OK Contrail G100 63.5oz 69ft/s 210ft/s 9.3G 691ft 6.6s 5s
OK Cesaroni G185 52.1oz 77ft/s 256ft/s 13.1G 715ft 6.5s 6s
OK Loki G66 54.3oz 58ft/s 206ft/s 6.7G 723ft 7.0s 5s
OK Cesaroni G60 52.8oz 49ft/s 219ft/s 4.8G 764ft 7.3s 5s
OK Contrail H300 67.1oz 131ft/s 254ft/s 37.4G 776ft 6.6s 6s
OK Contrail H222 63.8oz 105ft/s 255ft/s 37.2G 795ft 6.7s 6s
OK Cesaroni G78 52.4oz 50ft/s 236ft/s 8.0G 803ft 7.3s 5s
OK Cesaroni G115 52.4oz 61ft/s 258ft/s 8.0G 804ft 7.0s 6s
OK Contrail H303 66.3oz 139ft/s 272ft/s 41.3G 847ft 6.9s 6s
OK Loki H100 57.3oz 61ft/s 307ft/s 7.9G 1,158ft 8.3s 6s
OK Contrail H246 66.6oz 113ft/s 336ft/s 27.7G 1,166ft 7.9s 7s
warningsW AeroTech H283 54.2oz 102ft/s 383ft/s 21.1G 1,188ft 7.8s 7s
OK AeroTech H148 56.4oz 74ft/s 355ft/s 11.3G 1,262ft 8.4s 7s
OK AeroTech H130 53.9oz 87ft/s 346ft/s 16.3G 1,274ft 8.2s 7s
OK Contrail H141 67.1oz 79ft/s 337ft/s 13.2G 1,291ft 8.5s 7s
OK AeroTech H669 54.4oz 157ft/s 455ft/s 72.3G 1,303ft 7.9s 8s
OK AeroTech H123 55.2oz 64ft/s 339ft/s 8.7G 1,376ft 8.9s 6s
OK AeroTech H100 54.7oz 59ft/s 342ft/s 7.3G 1,382ft 8.9s 7s
OK AeroTech H219 54.7oz 94ft/s 428ft/s 18.3G 1,400ft 8.4s 7s
OK Cesaroni H123 56.0oz 58ft/s 383ft/s 8.3G 1,406ft 8.9s 7s
OK Loki H144 57.4oz 84ft/s 376ft/s 14.6G 1,406ft 8.6s 7s
OK Loki H90 57.3oz 63ft/s 328ft/s 8.2G 1,407ft 9.1s 6s
OK Loki H125 57.6oz 76ft/s 360ft/s 11.8G 1,424ft 8.8s 7s
OK Cesaroni H143 57.7oz 61ft/s 394ft/s 8.8G 1,426ft 8.9s 7s
OK AeroTech H242 54.8oz 85ft/s 426ft/s 14.5G 1,469ft 8.7s 7s
OK Cesaroni H400 55.5oz 114ft/s 499ft/s 27.5G 1,496ft 8.4s 8s
OK Loki H160 57.3oz 95ft/s 407ft/s 17.1G 1,496ft 8.7s 7s
OK AeroTech H112 58.9oz 52ft/s 345ft/s 5.7G 1,563ft 9.8s 6s
OK Cesaroni H120 55.9oz 62ft/s 404ft/s 8.5G 1,573ft 9.3s 7s
OK Cesaroni H125 55.8oz 61ft/s 423ft/s 8.4G 1,605ft 9.4s 7s
OK Cesaroni H110 57.0oz 57ft/s 396ft/s 6.6G 1,613ft 9.6s 7s
OK Cesaroni H225 52.3oz 89ft/s 509ft/s 16.7G 1,644ft 8.8s 8s
OK Cesaroni H152 56.0oz 71ft/s 445ft/s 12.6G 1,662ft 9.3s 7s
OK AeroTech H178 56.9oz 68ft/s 472ft/s 12.0G 1,669ft 9.2s 7s
OK Cesaroni H100 57.0oz 57ft/s 400ft/s 6.5G 1,720ft 10.0s 7s
OK AeroTech H550 56.6oz 142ft/s 602ft/s 40.4G 1,750ft 8.8s 8s
OK AeroTech H550 56.9oz 141ft/s 595ft/s 40.0G 1,757ft 8.8s 8s
OK AeroTech H999 57.2oz 190ft/s 635ft/s 100.3G 1,769ft 8.7s 8s
warningsW Cesaroni H565 58.3oz 132ft/s 606ft/s 37.4G 1,774ft 8.9s 8s
OK AeroTech I218 58.6oz 91ft/s 507ft/s 16.5G 1,810ft 9.3s 8s
OK AeroTech H170 57.1oz 77ft/s 488ft/s 11.6G 1,847ft 9.6s 7s
OK AeroTech I180 59.1oz 105ft/s 469ft/s 21.1G 1,857ft 9.4s 7s
OK AeroTech I161 58.4oz 78ft/s 478ft/s 12.4G 1,909ft 9.7s 7s
OK Cesaroni I180 59.4oz 72ft/s 520ft/s 11.2G 1,924ft 9.8s 8s
OK AeroTech I245 58.4oz 111ft/s 540ft/s 24.3G 1,949ft 9.4s 8s
OK AeroTech I357 57.6oz 105ft/s 573ft/s 22.7G 1,956ft 9.4s 8s
OK AeroTech I225 62.6oz 79ft/s 531ft/s 14.3G 1,970ft 9.7s 8s
OK AeroTech I140 58.1oz 68ft/s 462ft/s 10.0G 1,975ft 10.0s 8s
OK Cesaroni I566 59.1oz 130ft/s 685ft/s 36.3G 1,991ft 9.2s 9s
OK Cesaroni I212 62.3oz 77ft/s 551ft/s 12.9G 2,005ft 9.9s 8s
OK Cesaroni I800 61.6oz 155ft/s 760ft/s 49.2G 2,133ft 9.4s 9s
OK AeroTech I1299 60.4oz 207ft/s 800ft/s 89.3G 2,146ft 9.3s 9s
OK Cesaroni I345 59.4oz 102ft/s 661ft/s 22.6G 2,150ft 9.7s 9s
OK AeroTech I154 62.9oz 63ft/s 459ft/s 8.6G 2,171ft 10.8s 7s
OK Cesaroni I195 60.2oz 77ft/s 567ft/s 13.1G 2,192ft 10.2s 8s
OK AeroTech I285 62.9oz 98ft/s 620ft/s 20.6G 2,193ft 9.9s 8s
OK Cesaroni I170 59.3oz 76ft/s 580ft/s 12.6G 2,250ft 10.3s 8s
OK Cesaroni I236 59.6oz 88ft/s 614ft/s 17.8G 2,254ft 10.1s 8s
OK AeroTech I305 66.0oz 100ft/s 629ft/s 21.2G 2,255ft 9.9s 8s
OK Cesaroni I175 60.9oz 73ft/s 564ft/s 10.2G 2,272ft 10.5s 8s
OK AeroTech I300 61.1oz 109ft/s 649ft/s 26.4G 2,293ft 9.9s 8s
OK AeroTech I211 61.5oz 91ft/s 584ft/s 17.7G 2,312ft 10.2s 8s
OK Cesaroni I223 62.9oz 79ft/s 618ft/s 13.5G 2,313ft 10.3s 8s
OK AeroTech I195 65.7oz 93ft/s 577ft/s 18.8G 2,333ft 10.3s 8s
OK Loki I316 64.5oz 114ft/s 661ft/s 26.8G 2,405ft 10.1s 9s
OK Loki I405 64.7oz 141ft/s 724ft/s 43.8G 2,458ft 10.0s 9s
OK Cesaroni I287 66.8oz 87ft/s 685ft/s 16.6G 2,465ft 10.4s 9s
OK KBA I550 70.6oz 123ft/s 933ft/s 33.9G 2,491ft 9.6s 9s
OK Loki I210 64.5oz 100ft/s 616ft/s 23.7G 2,542ft 10.5s 8s
OK Loki I430 64.5oz 113ft/s 792ft/s 28.7G 2,577ft 10.3s 9s
OK Cesaroni I285 63.3oz 94ft/s 703ft/s 19.1G 2,577ft 10.5s 9s
OK Loki I377 65.3oz 129ft/s 721ft/s 35.3G 2,579ft 10.3s 9s
OK Cesaroni I470 63.0oz 122ft/s 833ft/s 30.9G 2,604ft 10.2s 9s
OK KBA I301 71.1oz 94ft/s 774ft/s 20.0G 2,606ft 10.2s 8s
OK AeroTech I366 65.1oz 113ft/s 752ft/s 26.1G 2,614ft 10.3s 9s
warningsW Loki I110 66.3oz 67ft/s 511ft/s 13.3G 2,622ft 11.5s 8s
OK AeroTech I327 67.7oz 101ft/s 744ft/s 22.0G 2,624ft 10.5s 9s
OK Cesaroni I255 63.7oz 88ft/s 691ft/s 16.8G 2,626ft 10.7s 9s
OK AeroTech I364 69.4oz 97ft/s 729ft/s 20.1G 2,635ft 10.5s 9s
OK AMW I297 66.3oz 97ft/s 731ft/s 19.3G 2,651ft 10.6s 9s
OK Cesaroni I303 63.1oz 99ft/s 742ft/s 22.5G 2,678ft 10.5s 9s
OK AeroTech I435 63.8oz 139ft/s 827ft/s 41.7G 2,696ft 10.2s 9s
OK AeroTech I280 67.2oz 91ft/s 732ft/s 17.0G 2,724ft 10.8s 9s
OK Cesaroni I242 64.9oz 85ft/s 699ft/s 14.8G 2,763ft 11.0s 9s
OK AeroTech I284 65.1oz 110ft/s 765ft/s 25.6G 2,795ft 10.6s 9s
OK Cesaroni I350 73.1oz 97ft/s 771ft/s 18.8G 2,802ft 10.9s 9s
OK AeroTech I500 65.8oz 116ft/s 894ft/s 30.5G 2,841ft 10.5s 9s
warningsW Cesaroni I540 66.6oz 124ft/s 928ft/s 33.1G 2,852ft 10.4s 9s
OK AeroTech I600 66.7oz 149ft/s 918ft/s 43.3G 2,856ft 10.4s 9s
OK KBA J740 71.0oz 147ft/s 987ft/s 45.6G 2,916ft 10.6s 10s
OK KBA J520 71.0oz 123ft/s 888ft/s 35.1G 2,917ft 10.8s 10s
OK AeroTech I350 67.2oz 103ft/s 864ft/s 24.6G 2,940ft 10.7s 9s
OK AeroTech J350 69.0oz 136ft/s 855ft/s 42.0G 2,940ft 10.6s 9s
OK AeroTech J420 68.4oz 117ft/s 853ft/s 28.4G 2,945ft 10.8s 9s
OK Loki J396 72.0oz 99ft/s 840ft/s 24.7G 2,952ft 10.9s 9s
OK Cesaroni J381 69.8oz 109ft/s 845ft/s 25.1G 2,972ft 10.8s 9s
OK AeroTech J340 65.9oz 117ft/s 836ft/s 31.8G 2,972ft 10.7s 9s
OK AeroTech I59 62.7oz 61ft/s 365ft/s 8.5G 2,992ft 13.9s 5s
OK Cesaroni J335 67.6oz 103ft/s 822ft/s 20.9G 2,999ft 10.9s 9s
OK AeroTech J520 72.2oz 153ft/s 863ft/s 43.9G 3,002ft 10.7s 9s
OK Cesaroni I125 68.3oz 75ft/s 535ft/s 13.1G 3,012ft 12.2s 8s
OK Cesaroni J357 66.7oz 111ft/s 853ft/s 26.8G 3,013ft 10.8s 9s
OK AeroTech J425 67.8oz 97ft/s 918ft/s 22.1G 3,045ft 10.9s 9s
OK Cesaroni J285 66.5oz 94ft/s 793ft/s 18.5G 3,053ft 11.1s 9s
OK Cesaroni J270 68.6oz 85ft/s 776ft/s 14.4G 3,087ft 11.3s 9s
OK Cesaroni J316 66.9oz 101ft/s 803ft/s 22.5G 3,090ft 11.2s 9s
OK Cesaroni J400 70.3oz 106ft/s 879ft/s 23.0G 3,099ft 11.0s 9s
OK Cesaroni I216 66.7oz 88ft/s 709ft/s 17.3G 3,103ft 11.4s 8s
OK AeroTech J500 68.6oz 136ft/s 941ft/s 40.6G 3,114ft 10.7s 9s
OK Loki J528 71.8oz 150ft/s 986ft/s 50.2G 3,133ft 10.7s 10s
OK AeroTech J575 77.7oz 144ft/s 992ft/s 39.7G 3,155ft 10.7s 9s
OK Cesaroni J290 68.8oz 99ft/s 804ft/s 19.5G 3,156ft 11.3s 9s
OK AeroTech J270 68.1oz 93ft/s 807ft/s 17.9G 3,224ft 11.4s 9s
OK Loki J712 72.0oz 141ft/s 1,074ft/s 42.9G 3,277ft 10.9s 10s
OK AeroTech J435 67.5oz 126ft/s 971ft/s 35.8G 3,288ft 11.0s 9s
OK Cesaroni J425 70.2oz 123ft/s 946ft/s 33.3G 3,321ft 11.1s 9s
OK Cesaroni J410 71.4oz 111ft/s 929ft/s 24.7G 3,324ft 11.2s 9s
OK Cesaroni J330 70.3oz 107ft/s 878ft/s 22.6G 3,363ft 11.4s 9s
OK Cesaroni J520 75.5oz 117ft/s 1,018ft/s 30.3G 3,410ft 11.2s 9s
OK Cesaroni J354 72.9oz 110ft/s 885ft/s 24.7G 3,496ft 11.5s 9s
OK Cesaroni J580 82.3oz 115ft/s 1,031ft/s 28.3G 3,507ft 11.4s 10s
OK Cesaroni J94 68.8oz 57ft/s 501ft/s 7.5G 3,525ft 13.9s 7s
OK Loki J320 72.0oz 106ft/s 871ft/s 25.5G 3,538ft 11.7s 9s
OK AeroTech J825 76.4oz 157ft/s 1,219ft/s 54.5G 3,556ft 11.0s 10s
OK Cesaroni J595 76.0oz 141ft/s 1,108ft/s 42.1G 3,722ft 11.4s 10s
OK Cesaroni J600 77.5oz 130ft/s 1,149ft/s 32.8G 3,728ft 11.4s 10s
OK AeroTech J570 77.3oz 155ft/s 1,054ft/s 52.7G 3,855ft 11.5s 9s
OK Cesaroni J394 78.6oz 97ft/s 1,000ft/s 19.4G 3,868ft 12.0s 9s
OK Cesaroni J453 79.5oz 118ft/s 1,027ft/s 31.9G 3,901ft 11.8s 9s
OK Cesaroni J420 76.3oz 125ft/s 1,022ft/s 36.0G 3,942ft 11.8s 9s
OK Cesaroni J530 80.0oz 132ft/s 1,127ft/s 35.3G 4,059ft 11.7s 10s
OK Cesaroni J150 79.0oz 72ft/s 656ft/s 13.8G 4,435ft 14.3s 8s

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 Cesaroni G69 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (45ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (45ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (46ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (39ft/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.)

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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