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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 98 motors that fit and appear to have enough thrust (668 motors didn't fit, 25 motors failed safety checks). 123 motor had thrust curves available and 236 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:   Judgement Day
Owner: Wm Riley
Body Diameter: 5.00in
Dry Weight: 399.0oz
MMT Diameter: 75.0mm
MMT Length: 48.00in
CD: 0.45

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 K707 528.6oz 59ft/s 244ft/s 8.4G 1,141ft 9.0s 7s
OK Contrail K456 529.7oz 50ft/s 254ft/s 5.1G 1,443ft 10.6s 7s
OK AeroTech K1499 460.4oz 78ft/s 309ft/s 12.6G 1,457ft 9.7s 9s
OK Contrail K678 541.9oz 58ft/s 311ft/s 6.7G 1,851ft 11.5s 9s
OK Contrail K777 541.9oz 66ft/s 317ft/s 10.9G 1,895ft 11.5s 9s
OK Contrail K543 526.2oz 50ft/s 353ft/s 5.1G 2,389ft 13.3s 10s
OK Contrail K888 546.2oz 64ft/s 429ft/s 8.0G 3,083ft 14.4s 12s
OK AeroTech K780 502.5oz 51ft/s 455ft/s 6.0G 3,271ft 15.1s 12s
OK Cesaroni K2000 485.9oz 82ft/s 530ft/s 17.8G 3,591ft 14.8s 14s
OK Cesaroni K1085 484.7oz 57ft/s 505ft/s 7.9G 3,604ft 15.4s 13s
OK AeroTech K1000 490.8oz 62ft/s 514ft/s 7.5G 3,807ft 15.7s 13s
OK Hypertek L550 536.5oz 48ft/s 465ft/s 4.6G 4,308ft 17.9s 12s
OK Hypertek L610 538.4oz 48ft/s 486ft/s 5.1G 4,351ft 17.7s 12s
OK Cesaroni L910 491.3oz 56ft/s 573ft/s 6.8G 4,647ft 17.5s 14s
OK Cesaroni L3200 514.1oz 101ft/s 734ft/s 26.1G 5,663ft 17.9s 17s
OK AeroTech L1150 528.6oz 62ft/s 672ft/s 8.2G 5,772ft 19.0s 16s
OK Loki L930 523.8oz 53ft/s 655ft/s 6.9G 5,877ft 19.6s 16s
OK Gorilla L985 527.1oz 49ft/s 680ft/s 6.9G 5,907ft 19.7s 16s
OK AeroTech L875 560.4oz 50ft/s 654ft/s 5.9G 5,988ft 20.0s 15s
OK Gorilla L1150 522.5oz 57ft/s 689ft/s 11.5G 6,036ft 19.3s 16s
OK Cesaroni L995 525.7oz 63ft/s 673ft/s 8.0G 6,087ft 19.6s 16s
OK Cesaroni L851 532.7oz 49ft/s 666ft/s 5.8G 6,110ft 20.2s 16s
OK AeroTech L850 531.0oz 56ft/s 654ft/s 7.2G 6,134ft 19.8s 15s
OK AeroTech L900 565.6oz 50ft/s 662ft/s 6.0G 6,134ft 20.2s 16s
OK AeroTech L1040 565.4oz 54ft/s 681ft/s 7.4G 6,200ft 19.9s 16s
OK Gorilla L1112 527.0oz 63ft/s 703ft/s 7.9G 6,237ft 19.7s 16s
OK Cesaroni L800 522.8oz 56ft/s 657ft/s 7.2G 6,316ft 20.3s 16s
OK Cesaroni L1050 520.6oz 59ft/s 708ft/s 7.5G 6,402ft 20.0s 16s
OK AeroTech L1520 527.8oz 70ft/s 755ft/s 10.9G 6,495ft 19.6s 17s
OK Cesaroni L1720 516.8oz 76ft/s 778ft/s 12.9G 6,513ft 19.5s 17s
OK Loki L840 531.2oz 55ft/s 683ft/s 7.2G 6,582ft 20.5s 16s
OK Cesaroni L1355 574.0oz 68ft/s 736ft/s 10.6G 6,583ft 20.0s 17s
OK Loki L1482 523.8oz 65ft/s 789ft/s 11.1G 6,781ft 20.0s 17s
OK AeroTech L1390 535.8oz 66ft/s 766ft/s 10.4G 6,797ft 20.2s 17s
OK AeroTech L1170 575.0oz 64ft/s 751ft/s 8.3G 6,925ft 20.6s 17s
OK AeroTech L1250 598.2oz 62ft/s 744ft/s 8.3G 6,989ft 20.8s 17s
OK Gorilla L1065 588.2oz 63ft/s 751ft/s 10.1G 7,314ft 20.9s 17s
OK Cesaroni L1350 525.0oz 67ft/s 835ft/s 9.8G 7,664ft 21.2s 18s
OK AMW L1290 589.4oz 59ft/s 818ft/s 8.4G 7,795ft 21.8s 18s
OK AeroTech L1420 559.9oz 68ft/s 867ft/s 10.1G 8,036ft 21.7s 18s
OK AeroTech L1365 572.1oz 67ft/s 860ft/s 9.4G 8,184ft 22.0s 18s
OK Cesaroni L1410 579.4oz 61ft/s 877ft/s 9.6G 8,272ft 22.1s 19s
OK Cesaroni L1685 612.4oz 77ft/s 885ft/s 12.4G 8,391ft 21.9s 19s
OK Cesaroni L1395 551.5oz 68ft/s 919ft/s 10.8G 8,715ft 22.4s 19s
OK Cesaroni L1115 554.3oz 68ft/s 861ft/s 9.7G 8,757ft 22.8s 18s
OK Loki M1200 588.3oz 55ft/s 881ft/s 8.6G 8,815ft 23.0s 19s
OK Cesaroni L2375 545.8oz 85ft/s 1,001ft/s 16.9G 8,851ft 21.9s 20s
OK Gorilla M745 597.2oz 61ft/s 746ft/s 8.5G 8,905ft 23.7s 17s
OK AeroTech L2200 567.7oz 88ft/s 971ft/s 19.3G 8,908ft 21.9s 20s
OK AeroTech M1350 568.6oz 71ft/s 910ft/s 10.3G 9,035ft 22.7s 19s
OK Cesaroni M1101 573.2oz 61ft/s 886ft/s 8.0G 9,079ft 23.3s 19s
OK Gorilla M1355 593.0oz 62ft/s 913ft/s 10.8G 9,116ft 23.0s 19s
OK AeroTech M1500 571.7oz 69ft/s 944ft/s 10.1G 9,143ft 22.9s 19s
OK AeroTech M1550 598.1oz 75ft/s 965ft/s 11.7G 9,453ft 23.1s 20s
OK AeroTech M1297 562.6oz 75ft/s 945ft/s 11.7G 9,621ft 23.3s 19s
OK AeroTech M1780 565.3oz 84ft/s 1,007ft/s 14.3G 9,695ft 23.0s 20s
OK Cesaroni M1230 569.9oz 64ft/s 945ft/s 8.8G 9,705ft 23.8s 19s
OK Cesaroni M2250 554.7oz 87ft/s 1,063ft/s 16.8G 9,804ft 22.7s 20s
OK Gorilla M1610 643.0oz 65ft/s 972ft/s 12.0G 9,821ft 23.7s 20s
OK Gorilla M1665 597.2oz 75ft/s 996ft/s 13.1G 9,934ft 23.4s 20s
OK Cesaroni M1830 558.6oz 79ft/s 1,048ft/s 13.4G 10,022ft 23.3s 20s
OK Cesaroni M1770 610.4oz 72ft/s 1,046ft/s 11.3G 10,156ft 23.8s 20s
OK Cesaroni M1160 600.0oz 55ft/s 963ft/s 7.5G 10,171ft 24.6s 19s
OK Cesaroni M2075 652.7oz 83ft/s 1,042ft/s 15.3G 10,323ft 23.7s 21s
OK Gorilla M1952 591.0oz 88ft/s 1,066ft/s 15.5G 10,437ft 23.7s 20s
OK AeroTech M650 579.8oz 59ft/s 783ft/s 7.3G 10,504ft 26.0s 15s
OK Cesaroni M1670 583.5oz 73ft/s 1,037ft/s 12.6G 10,548ft 24.2s 20s
OK Cesaroni M1810 590.0oz 74ft/s 1,101ft/s 12.2G 10,725ft 24.1s 21s
OK Cesaroni M1401 602.7oz 65ft/s 1,040ft/s 9.0G 10,842ft 24.8s 20s
OK Cesaroni M3100 576.0oz 98ft/s 1,205ft/s 23.1G 10,862ft 23.4s 21s
OK Cesaroni M1675 583.2oz 75ft/s 1,093ft/s 12.2G 10,912ft 24.3s 21s
OK Loki M1882 594.2oz 83ft/s 1,119ft/s 15.3G 10,936ft 24.0s 21s
OK Cesaroni M1400 586.0oz 76ft/s 1,035ft/s 12.5G 10,967ft 24.6s 20s
OK Cesaroni M1300 598.5oz 86ft/s 1,010ft/s 16.2G 11,203ft 24.8s 20s
OK AMW M2050 650.5oz 77ft/s 1,114ft/s 13.7G 11,241ft 24.6s 21s
OK Loki M1650 597.6oz 92ft/s 1,065ft/s 21.5G 11,284ft 24.6s 20s
OK Cesaroni M2080 647.3oz 78ft/s 1,131ft/s 13.8G 11,309ft 24.5s 21s
OK Loki M2550 594.1oz 91ft/s 1,214ft/s 18.0G 11,498ft 24.2s 22s
OK AeroTech M1315 598.1oz 69ft/s 1,036ft/s 9.8G 11,517ft 25.3s 19s
OK Cesaroni M3700 602.8oz 106ft/s 1,287ft/s 24.7G 11,770ft 24.2s 22s
OK Cesaroni M1540 607.3oz 75ft/s 1,119ft/s 13.3G 11,785ft 25.2s 21s
OK Gorilla M1085 648.0oz 72ft/s 955ft/s 11.9G 11,978ft 26.2s 19s
OK Loki M1969 652.6oz 78ft/s 1,172ft/s 13.1G 12,069ft 25.3s 21s
OK KBA M3500 652.0oz 92ft/s 1,324ft/s 23.8G 12,231ft 24.9s 23s
OK AeroTech M1850 635.1oz 77ft/s 1,068ft/s 12.7G 12,317ft 25.9s 19s
OK Cesaroni M2045 613.1oz 83ft/s 1,252ft/s 14.5G 12,567ft 25.4s 22s
OK Cesaroni M2150 622.1oz 81ft/s 1,276ft/s 14.8G 12,728ft 25.6s 22s
OK Cesaroni M840 644.3oz 65ft/s 943ft/s 9.9G 12,800ft 28.1s 19s
OK AeroTech M685 646.2oz 59ft/s 858ft/s 6.7G 12,826ft 28.9s 17s
OK Cesaroni M1590 613.3oz 79ft/s 1,194ft/s 12.6G 13,020ft 26.1s 21s
OK Gorilla M2925 648.0oz 94ft/s 1,339ft/s 25.3G 13,215ft 25.5s 23s
OK KBA M1450 667.6oz 71ft/s 1,157ft/s 11.3G 13,231ft 26.8s 21s
OK Cesaroni M1545 676.9oz 66ft/s 1,206ft/s 9.1G 13,489ft 27.1s 22s
OK AMW M1630 654.3oz 96ft/s 1,187ft/s 17.6G 13,594ft 26.6s 22s
OK Cesaroni M2020 647.0oz 83ft/s 1,321ft/s 14.0G 13,955ft 26.5s 22s
OK Loki M3000 651.6oz 106ft/s 1,423ft/s 23.8G 14,368ft 26.2s 23s
OK Loki M3464 667.0oz 105ft/s 1,542ft/s 24.4G 15,023ft 26.7s 24s
OK Cesaroni M2245 687.6oz 84ft/s 1,491ft/s 15.4G 15,842ft 27.8s 23s

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 K630 speed at end of launch guide too slow (45ft/s)
failedG Contrail K300 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni K735 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni K555 speed at end of launch guide too slow (38ft/s)
failedG AeroTech K560 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni K661 speed at end of launch guide too slow (44ft/s)
failedG Contrail K404 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni K510 speed at end of launch guide too slow (45ft/s)
failedG Hypertek L200 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni L585 speed at end of launch guide too slow (44ft/s)
failedG Gorilla L695 speed at end of launch guide too slow (36ft/s)
failedG Hypertek L475 speed at end of launch guide too slow (41ft/s)
failedG Hypertek L225 speed at end of launch guide too slow (27ft/s)
failedG Hypertek L355 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni L820 speed at end of launch guide too slow (44ft/s)
failedG Hypertek L535 speed at end of launch guide too slow (47ft/s)
failedG Loki L780 speed at end of launch guide too slow (41ft/s)
failedG Hypertek L350 speed at end of launch guide too slow (39ft/s)
failedG Loki L480 speed at end of launch guide too slow (33ft/s)
failedG Gorilla L789 speed at end of launch guide too slow (45ft/s)
failedG Gorilla L425 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni L645 speed at end of launch guide too slow (44ft/s)
failedG Contrail L369 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni L395 speed at end of launch guide too slow (35ft/s)
failedG Loki M900 speed at end of launch guide too slow (47ft/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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