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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 140 motors that fit and appear to have enough thrust (649 motors didn't fit, 14 motors failed safety checks). 154 motor had thrust curves available and 320 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: 51.0oz
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 70.2oz 128ft/s 157ft/s 40.8G 347ft 4.6s 4s
OK Contrail G130 69.2oz 72ft/s 142ft/s 26.9G 350ft 4.8s 4s
OK Contrail G234 70.2oz 115ft/s 177ft/s 26.9G 451ft 5.2s 5s
OK Loki G69 59.5oz 50ft/s 159ft/s 4.9G 470ft 5.8s 4s
OK Loki G70 59.5oz 50ft/s 168ft/s 5.1G 522ft 6.2s 4s
OK Loki G80 60.0oz 53ft/s 177ft/s 5.7G 539ft 6.1s 5s
OK AeroTech G339 57.4oz 107ft/s 214ft/s 22.6G 545ft 5.7s 5s
OK Loki G94 59.5oz 59ft/s 189ft/s 6.9G 572ft 6.2s 5s
OK Contrail G123 69.0oz 71ft/s 196ft/s 17.6G 598ft 6.2s 5s
OK Contrail G100 69.0oz 65ft/s 192ft/s 8.5G 619ft 6.4s 5s
OK Loki G66 59.8oz 55ft/s 186ft/s 6.0G 639ft 6.7s 5s
OK Cesaroni G185 57.6oz 74ft/s 231ft/s 11.8G 640ft 6.2s 6s
OK Contrail H300 72.6oz 122ft/s 234ft/s 34.5G 709ft 6.4s 6s
OK Cesaroni G115 57.9oz 57ft/s 233ft/s 7.2G 721ft 6.8s 6s
OK Contrail H222 69.3oz 100ft/s 235ft/s 34.2G 724ft 6.5s 6s
OK Contrail H303 71.8oz 131ft/s 251ft/s 38.1G 778ft 6.7s 6s
OK Loki H100 62.8oz 57ft/s 281ft/s 7.2G 1,072ft 8.1s 6s
OK Contrail H246 72.1oz 104ft/s 312ft/s 25.6G 1,092ft 7.8s 7s
warningsW AeroTech H283 59.7oz 97ft/s 350ft/s 19.1G 1,117ft 7.7s 7s
OK AeroTech H148 61.9oz 71ft/s 326ft/s 10.2G 1,183ft 8.3s 7s
OK AeroTech H130 59.4oz 83ft/s 318ft/s 14.7G 1,198ft 8.2s 7s
OK Contrail H141 72.6oz 77ft/s 313ft/s 12.1G 1,210ft 8.4s 7s
OK AeroTech H669 59.9oz 151ft/s 414ft/s 65.5G 1,243ft 7.9s 8s
OK AeroTech H123 60.7oz 61ft/s 312ft/s 7.8G 1,291ft 8.8s 6s
OK AeroTech H100 60.2oz 57ft/s 316ft/s 6.6G 1,295ft 8.9s 6s
OK Loki H90 62.8oz 61ft/s 303ft/s 7.4G 1,317ft 9.0s 6s
OK Cesaroni H123 61.5oz 55ft/s 352ft/s 7.5G 1,323ft 8.8s 7s
OK Loki H144 62.9oz 80ft/s 347ft/s 13.2G 1,331ft 8.6s 7s
OK AeroTech H219 60.2oz 90ft/s 393ft/s 16.5G 1,334ft 8.4s 7s
OK Loki H125 63.1oz 72ft/s 333ft/s 10.7G 1,343ft 8.8s 7s
OK Cesaroni H143 63.2oz 57ft/s 363ft/s 8.0G 1,347ft 8.9s 7s
OK AeroTech H242 60.3oz 80ft/s 392ft/s 13.1G 1,400ft 8.7s 7s
OK Loki H160 62.8oz 86ft/s 376ft/s 15.5G 1,427ft 8.7s 7s
OK Cesaroni H400 61.0oz 108ft/s 456ft/s 25.0G 1,440ft 8.5s 8s
OK AeroTech H112 64.4oz 49ft/s 320ft/s 5.2G 1,469ft 9.7s 6s
OK Cesaroni H120 61.4oz 61ft/s 373ft/s 7.7G 1,493ft 9.3s 7s
OK Cesaroni H125 61.3oz 57ft/s 390ft/s 7.6G 1,529ft 9.4s 7s
OK Cesaroni H110 62.5oz 53ft/s 366ft/s 6.0G 1,529ft 9.6s 7s
OK Cesaroni H225 57.8oz 85ft/s 468ft/s 15.0G 1,590ft 8.9s 8s
OK Cesaroni H152 61.5oz 67ft/s 412ft/s 11.4G 1,593ft 9.3s 7s
OK AeroTech H178 62.4oz 67ft/s 436ft/s 11.0G 1,606ft 9.3s 8s
OK Cesaroni H100 62.5oz 53ft/s 373ft/s 5.8G 1,635ft 10.0s 7s
OK AeroTech H550 62.1oz 135ft/s 553ft/s 36.7G 1,715ft 8.9s 8s
OK AeroTech H550 62.4oz 134ft/s 547ft/s 36.4G 1,718ft 8.9s 8s
OK AeroTech H999 62.7oz 180ft/s 580ft/s 91.4G 1,736ft 8.9s 9s
warningsW Cesaroni H565 63.8oz 127ft/s 556ft/s 34.0G 1,736ft 9.0s 8s
OK AeroTech I218 64.1oz 87ft/s 471ft/s 15.0G 1,756ft 9.4s 8s
OK AeroTech H170 62.6oz 72ft/s 454ft/s 10.5G 1,788ft 9.7s 8s
OK AeroTech I180 64.6oz 96ft/s 439ft/s 19.2G 1,802ft 9.5s 8s
OK AeroTech I161 63.9oz 74ft/s 447ft/s 11.2G 1,851ft 9.8s 8s
OK Cesaroni I180 64.9oz 68ft/s 484ft/s 10.3G 1,868ft 9.9s 8s
OK AeroTech I245 63.9oz 101ft/s 505ft/s 22.2G 1,908ft 9.5s 8s
OK AeroTech I140 63.6oz 65ft/s 434ft/s 9.1G 1,911ft 10.1s 8s
OK AeroTech I357 63.1oz 100ft/s 533ft/s 20.6G 1,917ft 9.5s 8s
OK AeroTech I225 68.1oz 75ft/s 497ft/s 13.2G 1,922ft 9.8s 8s
OK Cesaroni I212 67.8oz 73ft/s 514ft/s 11.9G 1,956ft 10.0s 8s
OK Cesaroni I566 64.6oz 125ft/s 630ft/s 33.2G 1,965ft 9.4s 9s
OK AeroTech I154 68.4oz 60ft/s 434ft/s 7.8G 2,101ft 10.9s 7s
OK Cesaroni I800 67.1oz 149ft/s 701ft/s 45.3G 2,119ft 9.6s 9s
OK Cesaroni I345 64.9oz 99ft/s 615ft/s 20.6G 2,121ft 9.9s 9s
OK AeroTech I1299 65.9oz 197ft/s 736ft/s 82.0G 2,141ft 9.5s 9s
OK Cesaroni I195 65.7oz 74ft/s 532ft/s 11.9G 2,147ft 10.3s 8s
OK AeroTech I285 68.4oz 94ft/s 581ft/s 18.8G 2,160ft 10.1s 9s
OK Cesaroni I170 64.8oz 73ft/s 545ft/s 11.5G 2,205ft 10.5s 8s
OK Cesaroni I236 65.1oz 84ft/s 576ft/s 16.2G 2,220ft 10.3s 8s
OK Cesaroni I175 66.4oz 70ft/s 531ft/s 9.3G 2,225ft 10.6s 8s
OK AeroTech I305 71.5oz 98ft/s 591ft/s 19.5G 2,230ft 10.1s 9s
OK AeroTech I300 66.6oz 103ft/s 609ft/s 24.2G 2,268ft 10.1s 9s
OK AeroTech I211 67.0oz 87ft/s 552ft/s 16.2G 2,278ft 10.4s 8s
OK Cesaroni I223 68.4oz 76ft/s 581ft/s 12.3G 2,278ft 10.5s 9s
OK AeroTech I195 71.2oz 90ft/s 545ft/s 17.2G 2,296ft 10.5s 8s
OK Loki I316 70.0oz 113ft/s 623ft/s 24.7G 2,384ft 10.3s 9s
OK Cesaroni I287 72.3oz 84ft/s 646ft/s 15.4G 2,443ft 10.6s 9s
OK Loki I405 70.2oz 141ft/s 681ft/s 40.3G 2,449ft 10.2s 9s
OK Loki I210 70.0oz 98ft/s 583ft/s 21.7G 2,512ft 10.7s 8s
OK KBA I550 76.1oz 114ft/s 875ft/s 31.5G 2,536ft 10.0s 9s
OK Cesaroni I285 68.8oz 91ft/s 665ft/s 17.4G 2,562ft 10.7s 9s
warningsW Loki I110 71.8oz 63ft/s 485ft/s 12.2G 2,564ft 11.6s 8s
OK Loki I377 70.8oz 128ft/s 681ft/s 32.5G 2,569ft 10.5s 9s
OK Loki I430 70.0oz 112ft/s 744ft/s 26.3G 2,569ft 10.5s 9s
OK Cesaroni I255 69.2oz 86ft/s 654ft/s 15.4G 2,607ft 10.9s 9s
OK Cesaroni I470 68.5oz 120ft/s 782ft/s 28.3G 2,607ft 10.4s 9s
OK AeroTech I366 70.6oz 109ft/s 711ft/s 23.9G 2,609ft 10.6s 9s
OK AeroTech I327 73.2oz 99ft/s 702ft/s 20.3G 2,615ft 10.7s 9s
OK AeroTech I364 74.9oz 96ft/s 690ft/s 18.6G 2,628ft 10.7s 9s
OK KBA I301 76.6oz 86ft/s 735ft/s 18.5G 2,629ft 10.5s 9s
OK AMW I297 71.8oz 89ft/s 691ft/s 17.7G 2,639ft 10.8s 9s
OK Cesaroni I303 68.6oz 96ft/s 702ft/s 20.7G 2,669ft 10.8s 9s
OK AeroTech I435 69.3oz 135ft/s 780ft/s 38.3G 2,704ft 10.5s 9s
OK AeroTech I280 72.7oz 89ft/s 694ft/s 15.7G 2,713ft 11.0s 9s
OK Cesaroni I242 70.4oz 82ft/s 665ft/s 13.6G 2,745ft 11.2s 9s
OK Cesaroni I350 78.6oz 92ft/s 731ft/s 17.4G 2,794ft 11.1s 9s
OK AeroTech I284 70.6oz 107ft/s 727ft/s 23.6G 2,796ft 10.8s 9s
OK AeroTech I500 71.3oz 115ft/s 842ft/s 28.1G 2,857ft 10.7s 9s
warningsW Cesaroni I540 72.1oz 124ft/s 875ft/s 30.5G 2,873ft 10.7s 10s
OK AeroTech I59 68.2oz 60ft/s 340ft/s 7.8G 2,876ft 14.0s 5s
OK AeroTech I600 72.2oz 137ft/s 866ft/s 39.9G 2,877ft 10.7s 10s
OK KBA J520 76.5oz 114ft/s 839ft/s 32.5G 2,926ft 11.0s 10s
OK KBA J740 76.5oz 136ft/s 926ft/s 42.4G 2,935ft 10.8s 10s
OK AeroTech I350 72.7oz 102ft/s 821ft/s 22.8G 2,954ft 11.0s 9s
OK AeroTech J350 74.5oz 131ft/s 812ft/s 38.8G 2,956ft 10.9s 9s
OK Loki J396 77.5oz 98ft/s 797ft/s 23.2G 2,957ft 11.1s 10s
OK AeroTech J420 73.9oz 112ft/s 811ft/s 26.2G 2,957ft 11.0s 9s
OK Cesaroni I125 73.8oz 72ft/s 512ft/s 12.1G 2,959ft 12.4s 8s
OK Cesaroni J381 75.3oz 108ft/s 802ft/s 23.2G 2,983ft 11.1s 9s
OK AeroTech J340 71.4oz 115ft/s 796ft/s 29.3G 2,985ft 11.0s 9s
OK Cesaroni J335 73.1oz 101ft/s 782ft/s 19.3G 3,004ft 11.2s 9s
OK AeroTech J520 77.7oz 142ft/s 820ft/s 40.7G 3,017ft 11.0s 10s
OK Cesaroni J357 72.2oz 102ft/s 812ft/s 24.6G 3,025ft 11.1s 9s
OK Cesaroni J285 72.0oz 92ft/s 756ft/s 17.0G 3,054ft 11.4s 9s
OK AeroTech J425 73.3oz 96ft/s 872ft/s 20.5G 3,063ft 11.1s 10s
OK Cesaroni J270 74.1oz 82ft/s 742ft/s 13.2G 3,083ft 11.6s 9s
OK Cesaroni J316 72.4oz 99ft/s 765ft/s 20.7G 3,088ft 11.4s 9s
OK Cesaroni I216 72.2oz 85ft/s 679ft/s 15.9G 3,089ft 11.7s 9s
OK Cesaroni J400 75.8oz 105ft/s 838ft/s 21.3G 3,116ft 11.2s 9s
OK AeroTech J500 74.1oz 136ft/s 896ft/s 37.5G 3,142ft 11.0s 10s
OK Cesaroni J290 74.3oz 91ft/s 769ft/s 18.0G 3,160ft 11.6s 9s
OK Loki J528 77.3oz 139ft/s 935ft/s 46.6G 3,164ft 11.0s 10s
OK AeroTech J575 83.2oz 134ft/s 942ft/s 37.0G 3,194ft 11.0s 10s
OK AeroTech J270 73.6oz 91ft/s 771ft/s 16.5G 3,230ft 11.6s 9s
OK Loki J712 77.5oz 137ft/s 1,018ft/s 39.8G 3,315ft 11.2s 10s
OK AeroTech J435 73.0oz 126ft/s 926ft/s 33.0G 3,321ft 11.3s 10s
OK Loki J326 78.0oz 125ft/s 756ft/s 44.0G 3,343ft 11.7s 9s
OK Cesaroni J410 76.9oz 106ft/s 888ft/s 22.9G 3,348ft 11.5s 10s
OK Cesaroni J425 75.7oz 113ft/s 904ft/s 30.8G 3,350ft 11.4s 9s
OK Cesaroni J330 75.8oz 106ft/s 841ft/s 20.9G 3,379ft 11.7s 9s
OK Cesaroni J520 81.0oz 117ft/s 973ft/s 28.1G 3,447ft 11.5s 10s
OK Cesaroni J94 74.3oz 56ft/s 482ft/s 6.9G 3,450ft 14.1s 7s
OK Cesaroni J354 78.4oz 102ft/s 850ft/s 22.9G 3,516ft 11.8s 9s
OK Cesaroni J580 87.8oz 116ft/s 986ft/s 26.4G 3,542ft 11.7s 10s
OK Loki J320 77.5oz 98ft/s 838ft/s 23.6G 3,550ft 12.0s 9s
OK AeroTech J825 81.9oz 161ft/s 1,162ft/s 50.8G 3,620ft 11.4s 10s
OK Cesaroni J595 81.5oz 131ft/s 1,061ft/s 39.2G 3,777ft 11.7s 10s
OK Cesaroni J600 83.0oz 122ft/s 1,100ft/s 30.5G 3,784ft 11.7s 10s
OK Cesaroni J394 84.1oz 96ft/s 965ft/s 18.0G 3,902ft 12.3s 10s
OK AeroTech J570 82.8oz 159ft/s 1,014ft/s 49.1G 3,906ft 11.8s 10s
OK Cesaroni J453 85.0oz 119ft/s 989ft/s 29.8G 3,944ft 12.1s 10s
OK Cesaroni J420 81.8oz 125ft/s 983ft/s 33.5G 3,980ft 12.1s 10s
OK Cesaroni J530 85.5oz 133ft/s 1,086ft/s 33.0G 4,116ft 12.1s 10s
OK Cesaroni J150 84.5oz 70ft/s 637ft/s 12.8G 4,401ft 14.5s 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 AeroTech G67 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (46ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (34ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (43ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (44ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (36ft/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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