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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 135 motors that fit and appear to have enough thrust (624 motors didn't fit, 43 motors failed safety checks). 178 motor had thrust curves available and 364 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:   Demon 75-Five
Owner: Erik Czerwin
Body Diameter: 3.11in
Dry Weight: 2,325g
MMT Diameter: 38.0mm
MMT Length: 48.00in
CD: 0.60

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 G234 2,869g 81ft/s 119ft/s 18.3G 252ft 4.1s 4s
OK AeroTech G339 2,506g 74ft/s 136ft/s 14.3G 294ft 4.4s 4s
OK Contrail G123 2,836g 49ft/s 130ft/s 11.8G 337ft 4.9s 4s
OK Cesaroni G185 2,513g 50ft/s 145ft/s 7.4G 349ft 5.0s 4s
OK Contrail H300 2,937g 86ft/s 162ft/s 23.9G 444ft 5.4s 5s
OK Contrail H222 2,845g 70ft/s 161ft/s 23.3G 446ft 5.4s 5s
OK Contrail H303 2,914g 93ft/s 174ft/s 26.3G 502ft 5.7s 5s
OK Contrail H211 2,925g 79ft/s 200ft/s 21.0G 690ft 6.7s 6s
OK Contrail H246 2,923g 75ft/s 220ft/s 17.6G 784ft 7.1s 6s
warningsW AeroTech H283 2,572g 68ft/s 231ft/s 12.3G 796ft 7.2s 6s
OK AeroTech H148 2,634g 49ft/s 219ft/s 6.5G 824ft 7.6s 6s
OK AeroTech H130 2,562g 58ft/s 215ft/s 9.3G 848ft 7.6s 6s
OK Contrail H141 2,937g 54ft/s 220ft/s 8.2G 871ft 7.7s 6s
OK Contrail H248 3,119g 75ft/s 241ft/s 21.6G 944ft 7.8s 7s
OK AeroTech H669 2,577g 105ft/s 272ft/s 42.8G 973ft 7.7s 7s
OK Loki H125 2,667g 50ft/s 231ft/s 6.8G 988ft 8.3s 6s
OK Loki H144 2,661g 57ft/s 241ft/s 8.5G 1,000ft 8.2s 7s
OK AeroTech H219 2,586g 61ft/s 265ft/s 10.6G 1,039ft 8.2s 7s
OK AeroTech H242 2,589g 56ft/s 266ft/s 8.4G 1,093ft 8.5s 7s
OK Loki H160 2,660g 62ft/s 263ft/s 10.1G 1,128ft 8.6s 7s
OK Contrail H277 3,035g 82ft/s 278ft/s 24.4G 1,193ft 8.7s 8s
OK Cesaroni H400 2,609g 76ft/s 304ft/s 16.4G 1,202ft 8.6s 8s
OK Contrail H340 3,141g 83ft/s 287ft/s 28.1G 1,224ft 8.8s 8s
OK Cesaroni H225 2,518g 59ft/s 316ft/s 9.4G 1,366ft 9.4s 8s
OK Contrail I500 3,125g 105ft/s 328ft/s 32.2G 1,449ft 9.3s 9s
OK AeroTech H170 2,655g 50ft/s 325ft/s 6.9G 1,581ft 10.2s 8s
OK AeroTech I218 2,697g 61ft/s 337ft/s 9.8G 1,581ft 10.0s 9s
OK Contrail I221 3,035g 74ft/s 324ft/s 15.1G 1,625ft 10.1s 8s
OK AeroTech H550 2,648g 93ft/s 373ft/s 24.1G 1,631ft 9.7s 9s
OK AeroTech I180 2,710g 71ft/s 324ft/s 12.6G 1,632ft 10.2s 8s
OK AeroTech H550 2,641g 93ft/s 376ft/s 24.2G 1,644ft 9.8s 9s
warningsW Cesaroni H565 2,687g 92ft/s 379ft/s 23.9G 1,658ft 9.8s 9s
OK AeroTech I161 2,691g 52ft/s 328ft/s 7.3G 1,664ft 10.5s 8s
OK AeroTech H999 2,656g 128ft/s 391ft/s 60.7G 1,692ft 9.8s 9s
OK AeroTech I225 2,811g 51ft/s 364ft/s 9.2G 1,824ft 10.8s 9s
OK AeroTech I245 2,690g 70ft/s 372ft/s 14.7G 1,849ft 10.6s 9s
OK Cesaroni I212 2,800g 50ft/s 374ft/s 8.5G 1,858ft 10.9s 9s
OK AeroTech I357 2,668g 70ft/s 383ft/s 13.5G 1,869ft 10.6s 9s
OK Contrail I290 3,210g 65ft/s 380ft/s 14.9G 2,006ft 11.1s 10s
OK Contrail I400 3,250g 94ft/s 401ft/s 26.9G 2,024ft 10.9s 10s
OK Cesaroni I566 2,709g 87ft/s 435ft/s 22.9G 2,026ft 10.7s 10s
OK Contrail I747 3,164g 142ft/s 431ft/s 60.2G 2,092ft 10.8s 10s
OK Cesaroni I195 2,742g 53ft/s 399ft/s 7.8G 2,120ft 11.6s 10s
OK Contrail I250 3,049g 70ft/s 392ft/s 18.1G 2,125ft 11.3s 10s
OK Cesaroni I175 2,762g 49ft/s 402ft/s 6.2G 2,204ft 12.0s 10s
OK Cesaroni I170 2,717g 51ft/s 408ft/s 7.5G 2,205ft 11.8s 9s
OK Cesaroni I345 2,720g 70ft/s 443ft/s 13.6G 2,207ft 11.4s 10s
OK AeroTech I285 2,818g 66ft/s 432ft/s 12.7G 2,233ft 11.5s 10s
OK Cesaroni I236 2,725g 58ft/s 432ft/s 10.6G 2,295ft 11.8s 10s
OK Cesaroni I800 2,782g 105ft/s 486ft/s 32.8G 2,322ft 11.3s 11s
OK Cesaroni I223 2,819g 52ft/s 439ft/s 8.4G 2,370ft 12.1s 10s
OK AeroTech I211 2,780g 61ft/s 425ft/s 10.8G 2,372ft 12.0s 10s
OK AeroTech I305 2,906g 70ft/s 448ft/s 13.5G 2,386ft 11.8s 10s
OK AeroTech I195 2,897g 64ft/s 424ft/s 11.8G 2,389ft 12.1s 10s
OK AeroTech I1299 2,747g 139ft/s 507ft/s 55.9G 2,407ft 11.4s 11s
OK AeroTech I300 2,766g 73ft/s 458ft/s 16.2G 2,432ft 11.9s 10s
OK Contrail I210 3,195g 73ft/s 402ft/s 13.9G 2,458ft 12.4s 10s
OK Loki I316 2,865g 77ft/s 480ft/s 16.9G 2,630ft 12.2s 11s
OK Cesaroni I287 2,930g 60ft/s 494ft/s 11.2G 2,702ft 12.6s 11s
OK Loki I210 2,865g 70ft/s 462ft/s 14.8G 2,742ft 12.7s 10s
OK Loki I405 2,868g 97ft/s 521ft/s 27.6G 2,817ft 12.4s 11s
OK Contrail I155 3,050g 49ft/s 437ft/s 6.4G 2,859ft 13.7s 10s
OK Contrail I333 3,254g 79ft/s 488ft/s 26.3G 2,863ft 12.9s 11s
OK Cesaroni I285 2,831g 64ft/s 517ft/s 11.7G 2,909ft 13.0s 11s
OK Cesaroni I255 2,841g 60ft/s 515ft/s 10.4G 2,947ft 13.1s 11s
OK Loki I377 2,885g 88ft/s 534ft/s 22.3G 2,979ft 12.8s 11s
OK Loki I430 2,865g 76ft/s 558ft/s 17.9G 2,992ft 12.9s 12s
OK AeroTech I327 2,953g 72ft/s 544ft/s 13.9G 3,048ft 13.1s 11s
OK AMW I297 2,916g 64ft/s 539ft/s 12.1G 3,056ft 13.2s 11s
OK AeroTech I366 2,881g 78ft/s 554ft/s 16.3G 3,072ft 13.0s 12s
OK AeroTech I364 3,003g 70ft/s 544ft/s 13.4G 3,074ft 13.1s 11s
OK Cesaroni I303 2,825g 68ft/s 548ft/s 13.9G 3,124ft 13.3s 11s
OK Contrail I307 3,135g 85ft/s 519ft/s 22.1G 3,136ft 13.3s 11s
OK Cesaroni I470 2,820g 81ft/s 587ft/s 19.1G 3,136ft 13.0s 12s
OK Cesaroni I242 2,875g 57ft/s 535ft/s 9.1G 3,151ft 13.6s 11s
OK Cesaroni I125 2,972g 50ft/s 439ft/s 8.2G 3,151ft 14.4s 10s
OK AeroTech I280 2,941g 64ft/s 549ft/s 10.7G 3,164ft 13.5s 12s
OK Contrail I727 3,254g 136ft/s 586ft/s 51.1G 3,269ft 13.2s 12s
OK KBA I301 3,051g 63ft/s 588ft/s 12.8G 3,307ft 13.5s 12s
OK Cesaroni I350 3,107g 68ft/s 579ft/s 12.2G 3,318ft 13.6s 12s
OK AeroTech I435 2,843g 96ft/s 602ft/s 26.1G 3,327ft 13.3s 12s
OK KBA I550 3,037g 85ft/s 654ft/s 23.1G 3,354ft 13.2s 12s
OK AeroTech I284 2,881g 77ft/s 584ft/s 16.3G 3,396ft 13.6s 12s
OK Contrail J150 3,214g 53ft/s 483ft/s 7.5G 3,517ft 14.9s 11s
OK AeroTech I500 2,901g 85ft/s 650ft/s 19.3G 3,617ft 13.8s 12s
OK KBA J520 3,047g 85ft/s 654ft/s 22.8G 3,657ft 13.9s 13s
OK Loki J396 3,077g 68ft/s 636ft/s 17.4G 3,664ft 14.1s 13s
OK Cesaroni I216 2,926g 60ft/s 570ft/s 10.8G 3,678ft 14.5s 11s
warningsW Cesaroni I540 2,923g 92ft/s 673ft/s 21.3G 3,682ft 13.8s 13s
OK AeroTech I600 2,927g 103ft/s 672ft/s 27.6G 3,698ft 13.8s 13s
OK Contrail J246 3,186g 76ft/s 549ft/s 15.8G 3,705ft 14.6s 12s
OK AeroTech J420 2,975g 79ft/s 651ft/s 18.2G 3,729ft 14.1s 12s
OK AeroTech I350 2,941g 74ft/s 656ft/s 16.2G 3,731ft 14.1s 13s
OK Cesaroni J335 2,952g 69ft/s 634ft/s 13.2G 3,731ft 14.2s 12s
OK Cesaroni J381 3,013g 75ft/s 645ft/s 16.1G 3,750ft 14.2s 12s
OK AeroTech J350 2,990g 95ft/s 653ft/s 27.1G 3,761ft 14.0s 12s
OK Cesaroni J270 2,980g 59ft/s 616ft/s 9.5G 3,761ft 14.6s 12s
OK Cesaroni J285 2,920g 66ft/s 621ft/s 12.0G 3,769ft 14.4s 12s
OK KBA J740 3,049g 103ft/s 698ft/s 31.5G 3,770ft 13.9s 13s
OK AeroTech J340 2,902g 79ft/s 645ft/s 20.1G 3,779ft 14.1s 12s
OK Cesaroni J316 2,932g 68ft/s 625ft/s 14.2G 3,791ft 14.4s 12s
OK Cesaroni J357 2,926g 74ft/s 658ft/s 16.9G 3,823ft 14.3s 12s
OK AeroTech J520 3,082g 100ft/s 662ft/s 28.7G 3,855ft 14.1s 13s
OK RATT J160 2,869g 57ft/s 500ft/s 8.3G 3,933ft 15.8s 11s
OK AeroTech J425 2,956g 70ft/s 694ft/s 14.8G 3,936ft 14.4s 13s
OK Cesaroni J290 2,985g 66ft/s 642ft/s 12.4G 3,949ft 14.7s 12s
OK Cesaroni J400 3,027g 75ft/s 684ft/s 15.3G 4,000ft 14.5s 13s
OK AeroTech J270 2,967g 66ft/s 649ft/s 11.3G 4,068ft 14.9s 12s
OK AeroTech J500 2,979g 94ft/s 728ft/s 26.1G 4,163ft 14.5s 13s
OK Loki J528 3,070g 98ft/s 744ft/s 32.9G 4,214ft 14.5s 13s
OK AeroTech J575 3,239g 101ft/s 761ft/s 26.9G 4,344ft 14.6s 13s
OK Cesaroni J330 3,027g 73ft/s 709ft/s 14.5G 4,396ft 15.2s 13s
OK Cesaroni J410 3,060g 79ft/s 741ft/s 16.0G 4,422ft 15.1s 13s
OK AeroTech J435 2,949g 87ft/s 763ft/s 22.8G 4,469ft 15.0s 13s
OK Cesaroni J425 3,025g 85ft/s 752ft/s 21.6G 4,474ft 15.0s 13s
OK Loki J712 3,077g 101ft/s 804ft/s 28.1G 4,519ft 14.9s 14s
OK Loki J320 3,077g 73ft/s 723ft/s 16.6G 4,611ft 15.5s 13s
OK Cesaroni J354 3,103g 76ft/s 738ft/s 16.1G 4,640ft 15.5s 13s
OK Cesaroni J520 3,175g 83ft/s 805ft/s 20.0G 4,705ft 15.3s 14s
OK Cesaroni J580 3,369g 84ft/s 822ft/s 20.3G 4,835ft 15.5s 14s
OK Loki J650 3,468g 88ft/s 844ft/s 26.6G 5,024ft 15.7s 14s
OK AeroTech J825 3,200g 116ft/s 949ft/s 36.5G 5,244ft 15.6s 14s
OK Cesaroni J150 3,276g 52ft/s 610ft/s 9.1G 5,354ft 18.0s 12s
OK Cesaroni J394 3,264g 69ft/s 853ft/s 13.2G 5,357ft 16.4s 14s
OK Cesaroni J595 3,191g 94ft/s 913ft/s 28.1G 5,395ft 16.0s 14s
OK Cesaroni J600 3,231g 94ft/s 932ft/s 21.9G 5,423ft 16.0s 14s
OK Cesaroni J453 3,289g 86ft/s 873ft/s 21.5G 5,514ft 16.3s 14s
OK Cesaroni J420 3,199g 90ft/s 864ft/s 24.0G 5,534ft 16.3s 14s
OK AeroTech J570 3,227g 114ft/s 893ft/s 35.4G 5,564ft 16.1s 14s
OK Cesaroni J530 3,302g 96ft/s 957ft/s 23.9G 5,938ft 16.6s 15s
OK AeroTech J510 3,405g 97ft/s 968ft/s 30.1G 6,129ft 16.8s 14s
OK Loki J1000 3,468g 124ft/s 1,090ft/s 40.2G 6,217ft 16.6s 15s
OK Loki J1026 3,497g 112ft/s 1,140ft/s 34.9G 6,423ft 16.8s 16s
OK Loki K1127 3,497g 117ft/s 1,127ft/s 40.0G 6,452ft 16.8s 15s
OK Loki K627 3,561g 98ft/s 1,169ft/s 27.4G 7,487ft 18.0s 15s

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
failedA Contrail G130 rocket doesn't reach a safe altitude (181ft)
failedG AeroTech G67 speed at end of launch guide too slow (32ft/s)
failedG Loki G69 speed at end of launch guide too slow (33ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (29ft/s)
failedG Loki G70 speed at end of launch guide too slow (34ft/s)
failedG Loki G94 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (29ft/s)
failedG Loki G80 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (28ft/s)
failedG Loki G66 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (30ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (31ft/s)
failedG Contrail G100 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (21ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (189ft)
failedG AeroTech H73 speed at end of launch guide too slow (28ft/s)
failedG Loki H100 speed at end of launch guide too slow (39ft/s)
failedG AeroTech H123 speed at end of launch guide too slow (42ft/s)
failedG Contrail H121 speed at end of launch guide too slow (47ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (38ft/s)
failedG Loki H90 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (42ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni H152 speed at end of launch guide too slow (46ft/s)
failedG AeroTech H178 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (29ft/s)
failedG AeroTech I140 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni I180 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (42ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (21ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (24ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (42ft/s)
failedG Loki I110 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (39ft/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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