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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 110 motors that fit and appear to have enough thrust (664 motors didn't fit, 17 motors failed safety checks). 127 motor had thrust curves available and 267 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 Red Max
Owner: Kevin Katz
Body Diameter: 4.00in
Dry Weight: 1,275g
MMT Diameter: 38.0mm
MMT Length: 16.00in
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 G300 1,819g 125ft/s 172ft/s 44.7G 387ft 4.8s 5s
OK Contrail G130 1,791g 68ft/s 156ft/s 29.5G 394ft 5.0s 4s
OK AeroTech G339 1,456g 100ft/s 239ft/s 25.4G 591ft 5.8s 5s
OK Loki G80 1,530g 50ft/s 197ft/s 6.5G 597ft 6.2s 5s
OK Loki G94 1,515g 54ft/s 210ft/s 7.8G 627ft 6.3s 5s
OK Contrail G123 1,786g 66ft/s 214ft/s 19.3G 648ft 6.3s 5s
OK Contrail G100 1,786g 60ft/s 210ft/s 9.4G 670ft 6.5s 5s
OK Cesaroni G185 1,463g 67ft/s 257ft/s 13.1G 686ft 6.3s 6s
OK Loki G66 1,525g 50ft/s 205ft/s 6.7G 699ft 6.9s 5s
OK Contrail H222 1,795g 94ft/s 255ft/s 37.5G 765ft 6.6s 6s
OK Cesaroni G115 1,470g 52ft/s 258ft/s 8.1G 771ft 6.8s 6s
OK Loki H100 1,610g 52ft/s 304ft/s 7.9G 1,096ft 8.0s 6s
warningsW AeroTech H283 1,522g 89ft/s 383ft/s 21.3G 1,113ft 7.5s 7s
OK AeroTech H148 1,584g 65ft/s 351ft/s 11.4G 1,187ft 8.0s 7s
OK AeroTech H130 1,512g 78ft/s 341ft/s 16.5G 1,195ft 7.9s 6s
OK AeroTech H669 1,527g 137ft/s 457ft/s 73.0G 1,211ft 7.5s 7s
OK AeroTech H123 1,550g 56ft/s 333ft/s 8.8G 1,293ft 8.5s 6s
OK AeroTech H100 1,536g 50ft/s 336ft/s 7.4G 1,299ft 8.6s 6s
OK AeroTech H219 1,536g 84ft/s 425ft/s 18.5G 1,303ft 8.0s 7s
OK Loki H144 1,611g 76ft/s 371ft/s 14.7G 1,316ft 8.2s 7s
OK Cesaroni H123 1,572g 51ft/s 379ft/s 8.4G 1,318ft 8.5s 7s
OK Loki H90 1,610g 56ft/s 322ft/s 8.3G 1,325ft 8.7s 6s
OK Cesaroni H143 1,622g 52ft/s 390ft/s 8.7G 1,335ft 8.6s 7s
OK Loki H125 1,617g 66ft/s 355ft/s 11.9G 1,335ft 8.5s 6s
OK AeroTech H242 1,539g 73ft/s 422ft/s 14.6G 1,368ft 8.3s 7s
OK Cesaroni H400 1,559g 94ft/s 498ft/s 27.6G 1,385ft 8.0s 7s
OK Loki H160 1,610g 80ft/s 402ft/s 17.3G 1,395ft 8.3s 7s
OK Cesaroni H120 1,570g 55ft/s 396ft/s 8.6G 1,469ft 8.9s 7s
OK Cesaroni H125 1,568g 52ft/s 416ft/s 8.5G 1,497ft 9.0s 7s
OK Cesaroni H110 1,600g 49ft/s 388ft/s 6.6G 1,509ft 9.2s 6s
OK Cesaroni H225 1,468g 80ft/s 503ft/s 16.9G 1,519ft 8.4s 7s
OK Cesaroni H152 1,573g 62ft/s 437ft/s 12.8G 1,546ft 8.9s 7s
OK AeroTech H178 1,599g 60ft/s 465ft/s 11.9G 1,549ft 8.8s 7s
OK AeroTech H550 1,591g 121ft/s 600ft/s 40.7G 1,605ft 8.3s 8s
OK Cesaroni H100 1,602g 50ft/s 391ft/s 6.5G 1,608ft 9.5s 7s
OK AeroTech H550 1,598g 120ft/s 593ft/s 40.3G 1,614ft 8.4s 8s
OK AeroTech H999 1,606g 163ft/s 636ft/s 101.2G 1,620ft 8.3s 8s
warningsW Cesaroni H565 1,637g 120ft/s 605ft/s 37.6G 1,629ft 8.4s 8s
OK AeroTech I218 1,647g 78ft/s 498ft/s 16.7G 1,673ft 8.9s 7s
OK AeroTech H170 1,605g 67ft/s 477ft/s 11.7G 1,711ft 9.1s 7s
OK AeroTech I180 1,660g 93ft/s 460ft/s 21.3G 1,720ft 8.9s 7s
OK AeroTech I161 1,641g 67ft/s 467ft/s 12.5G 1,769ft 9.3s 7s
OK Cesaroni I180 1,669g 59ft/s 511ft/s 11.2G 1,780ft 9.3s 7s
OK AeroTech I245 1,640g 89ft/s 529ft/s 24.4G 1,794ft 8.9s 7s
OK AeroTech I357 1,618g 92ft/s 564ft/s 22.9G 1,799ft 8.9s 7s
OK AeroTech I225 1,761g 68ft/s 521ft/s 14.3G 1,820ft 9.3s 7s
OK Cesaroni I566 1,659g 110ft/s 681ft/s 36.3G 1,820ft 8.7s 8s
OK AeroTech I140 1,631g 60ft/s 448ft/s 10.1G 1,831ft 9.6s 7s
OK Cesaroni I212 1,750g 66ft/s 540ft/s 12.7G 1,850ft 9.4s 8s
OK Cesaroni I800 1,732g 133ft/s 758ft/s 49.1G 1,943ft 8.9s 8s
OK AeroTech I1299 1,697g 180ft/s 800ft/s 89.5G 1,951ft 8.7s 8s
OK Cesaroni I345 1,670g 90ft/s 651ft/s 22.8G 1,970ft 9.2s 8s
OK AeroTech I285 1,768g 82ft/s 608ft/s 20.7G 2,014ft 9.4s 8s
OK AeroTech I154 1,767g 55ft/s 445ft/s 8.7G 2,018ft 10.3s 7s
OK Cesaroni I195 1,692g 66ft/s 552ft/s 13.2G 2,021ft 9.7s 8s
OK AeroTech I305 1,856g 88ft/s 617ft/s 21.3G 2,069ft 9.4s 8s
OK Cesaroni I236 1,675g 74ft/s 600ft/s 17.9G 2,071ft 9.6s 8s
OK Cesaroni I170 1,667g 65ft/s 566ft/s 12.7G 2,073ft 9.8s 7s
OK Cesaroni I175 1,712g 61ft/s 549ft/s 10.2G 2,096ft 9.9s 7s
OK AeroTech I300 1,716g 96ft/s 635ft/s 26.7G 2,103ft 9.4s 8s
OK Cesaroni I223 1,769g 68ft/s 604ft/s 13.6G 2,127ft 9.8s 8s
OK AeroTech I211 1,730g 80ft/s 568ft/s 17.9G 2,128ft 9.7s 7s
OK AeroTech I195 1,847g 81ft/s 562ft/s 18.9G 2,149ft 9.8s 8s
OK Loki I316 1,815g 98ft/s 647ft/s 27.0G 2,203ft 9.5s 8s
OK Loki I405 1,818g 130ft/s 710ft/s 44.1G 2,244ft 9.4s 8s
OK KBA I550 1,987g 105ft/s 916ft/s 33.7G 2,257ft 9.1s 8s
OK Cesaroni I287 1,880g 75ft/s 669ft/s 16.4G 2,260ft 9.9s 8s
OK Loki I210 1,815g 88ft/s 600ft/s 23.9G 2,335ft 10.0s 8s
OK Loki I430 1,815g 98ft/s 777ft/s 28.9G 2,351ft 9.7s 9s
OK Loki I377 1,835g 110ft/s 704ft/s 35.6G 2,356ft 9.7s 8s
OK Cesaroni I285 1,781g 84ft/s 684ft/s 19.2G 2,359ft 10.0s 8s
OK Cesaroni I470 1,770g 104ft/s 817ft/s 31.1G 2,370ft 9.6s 8s
OK KBA I301 2,000g 79ft/s 751ft/s 20.1G 2,380ft 9.6s 8s
OK AeroTech I366 1,831g 97ft/s 732ft/s 26.3G 2,386ft 9.8s 8s
OK AeroTech I327 1,903g 89ft/s 727ft/s 22.2G 2,400ft 9.9s 8s
OK Cesaroni I255 1,791g 79ft/s 670ft/s 16.8G 2,406ft 10.1s 8s
OK AeroTech I364 1,953g 86ft/s 710ft/s 20.1G 2,410ft 9.9s 8s
OK AMW I297 1,866g 81ft/s 712ft/s 19.4G 2,426ft 10.0s 8s
warningsW Loki I110 1,864g 58ft/s 494ft/s 13.5G 2,429ft 10.9s 7s
OK Cesaroni I303 1,775g 87ft/s 722ft/s 22.7G 2,448ft 9.9s 8s
OK AeroTech I435 1,793g 124ft/s 808ft/s 42.0G 2,453ft 9.6s 8s
OK AeroTech I280 1,891g 81ft/s 711ft/s 17.2G 2,494ft 10.2s 8s
OK Cesaroni I242 1,825g 76ft/s 676ft/s 15.0G 2,534ft 10.4s 8s
OK AeroTech I284 1,831g 96ft/s 742ft/s 25.6G 2,552ft 10.0s 8s
OK Cesaroni I350 2,057g 83ft/s 751ft/s 18.9G 2,562ft 10.3s 8s
OK AeroTech I500 1,851g 108ft/s 875ft/s 30.8G 2,582ft 9.8s 9s
warningsW Cesaroni I540 1,873g 114ft/s 908ft/s 33.2G 2,589ft 9.8s 9s
OK AeroTech I600 1,877g 124ft/s 898ft/s 43.7G 2,592ft 9.8s 9s
OK KBA J740 1,999g 125ft/s 974ft/s 45.6G 2,643ft 9.9s 9s
OK AeroTech I350 1,891g 90ft/s 839ft/s 24.6G 2,677ft 10.1s 9s
OK AeroTech J350 1,940g 120ft/s 832ft/s 42.3G 2,677ft 10.0s 8s
OK AeroTech J420 1,925g 100ft/s 828ft/s 28.6G 2,681ft 10.1s 9s
OK Loki J396 2,027g 87ft/s 819ft/s 24.3G 2,691ft 10.3s 9s
OK AeroTech J340 1,852g 102ft/s 810ft/s 32.1G 2,711ft 10.1s 8s
OK Cesaroni J335 1,902g 90ft/s 796ft/s 21.1G 2,738ft 10.3s 8s
OK Cesaroni J357 1,876g 97ft/s 827ft/s 27.0G 2,746ft 10.2s 8s
OK AeroTech J425 1,906g 85ft/s 892ft/s 22.1G 2,771ft 10.2s 9s
OK Cesaroni I125 1,922g 67ft/s 514ft/s 13.2G 2,788ft 11.6s 7s
OK Cesaroni J285 1,870g 83ft/s 767ft/s 18.5G 2,790ft 10.5s 8s
OK AeroTech I59 1,762g 54ft/s 360ft/s 8.5G 2,797ft 13.5s 5s
OK Cesaroni J316 1,882g 89ft/s 778ft/s 22.7G 2,823ft 10.6s 8s
OK Cesaroni J270 1,930g 72ft/s 748ft/s 14.4G 2,826ft 10.7s 8s
OK AeroTech J500 1,929g 126ft/s 913ft/s 40.9G 2,827ft 10.1s 9s
OK Cesaroni I216 1,876g 74ft/s 683ft/s 17.4G 2,847ft 10.8s 8s
OK Cesaroni J290 1,935g 88ft/s 776ft/s 19.7G 2,886ft 10.7s 8s
OK AeroTech J270 1,917g 83ft/s 778ft/s 18.0G 2,948ft 10.7s 8s
OK Loki J712 2,027g 130ft/s 1,049ft/s 43.3G 2,968ft 10.2s 9s
OK AeroTech J435 1,899g 116ft/s 940ft/s 36.1G 2,988ft 10.3s 9s
OK Loki J320 2,027g 94ft/s 838ft/s 25.7G 3,231ft 11.0s 8s
OK Cesaroni J94 1,935g 49ft/s 477ft/s 7.6G 3,276ft 13.4s 6s

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 (44ft/s)
failedG Loki G69 speed at end of launch guide too slow (46ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (41ft/s)
failedG Loki G70 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (42ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (31ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (39ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (45ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (40ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (33ft/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.)

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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