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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 86 motors that fit and appear to have enough thrust (668 motors didn't fit, 37 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:   Ultimate Dark Star
Owner: KenRico
Body Diameter: 6.17in
Dry Weight: 41.00lb
MMT Diameter: 75.0mm
MMT Length: 45.00in
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 49.10lb 54ft/s 147ft/s 5.3G 491ft 6.2s 4s
OK AeroTech K1499 44.84lb 69ft/s 187ft/s 7.7G 604ft 6.5s 6s
OK Contrail K678 49.93lb 50ft/s 188ft/s 4.2G 820ft 8.1s 5s
OK Contrail K777 49.93lb 58ft/s 195ft/s 7.0G 855ft 8.1s 5s
OK Contrail K888 50.20lb 58ft/s 268ft/s 5.1G 1,464ft 10.4s 8s
OK Cesaroni K1085 46.36lb 51ft/s 304ft/s 4.8G 1,632ft 11.0s 9s
OK Cesaroni K2000 46.43lb 75ft/s 332ft/s 11.2G 1,702ft 10.6s 9s
OK AeroTech K1000 46.74lb 53ft/s 311ft/s 4.6G 1,754ft 11.4s 9s
OK Cesaroni L910 46.77lb 48ft/s 344ft/s 4.1G 2,184ft 12.9s 10s
OK AeroTech L1150 49.10lb 55ft/s 421ft/s 5.1G 2,958ft 14.6s 11s
OK Cesaroni L3200 48.20lb 93ft/s 473ft/s 16.8G 3,009ft 13.7s 13s
OK Gorilla L1150 48.72lb 51ft/s 433ft/s 7.3G 3,134ft 14.9s 12s
OK Cesaroni L995 48.92lb 55ft/s 419ft/s 5.0G 3,135ft 15.1s 11s
OK AeroTech L850 49.25lb 50ft/s 406ft/s 4.5G 3,156ft 15.3s 11s
OK Cesaroni L800 48.74lb 50ft/s 403ft/s 4.5G 3,203ft 15.7s 11s
OK Gorilla L1112 49.00lb 55ft/s 441ft/s 5.0G 3,248ft 15.2s 12s
OK Cesaroni L1050 48.60lb 51ft/s 441ft/s 4.7G 3,316ft 15.5s 12s
OK AeroTech L1520 49.05lb 63ft/s 481ft/s 6.9G 3,481ft 15.3s 13s
OK Cesaroni L1720 48.37lb 67ft/s 494ft/s 8.2G 3,489ft 15.1s 13s
OK Cesaroni L1355 51.94lb 61ft/s 476ft/s 6.9G 3,613ft 15.7s 13s
OK Loki L1482 48.80lb 59ft/s 500ft/s 7.2G 3,639ft 15.7s 13s
OK AeroTech L1390 49.55lb 60ft/s 489ft/s 6.6G 3,671ft 15.8s 13s
OK AeroTech L1170 52.00lb 56ft/s 485ft/s 5.4G 3,798ft 16.3s 13s
OK AeroTech L1250 53.45lb 56ft/s 488ft/s 5.5G 3,878ft 16.5s 13s
OK Gorilla L1065 52.82lb 59ft/s 493ft/s 6.7G 4,128ft 16.7s 13s
OK Cesaroni L1350 48.87lb 60ft/s 532ft/s 6.2G 4,229ft 16.9s 14s
OK AMW L1290 52.90lb 54ft/s 533ft/s 5.5G 4,387ft 17.5s 14s
OK AeroTech L1420 51.06lb 61ft/s 562ft/s 6.5G 4,560ft 17.5s 14s
OK AeroTech L1365 51.82lb 61ft/s 560ft/s 6.1G 4,677ft 17.8s 14s
OK Cesaroni L1410 52.28lb 56ft/s 572ft/s 6.3G 4,741ft 17.9s 14s
OK Cesaroni L1685 54.34lb 73ft/s 591ft/s 8.4G 4,985ft 17.9s 15s
OK Cesaroni L1115 50.71lb 61ft/s 556ft/s 6.3G 5,002ft 18.6s 14s
OK Cesaroni L1395 50.53lb 61ft/s 596ft/s 7.0G 5,029ft 18.2s 15s
OK Gorilla M745 53.39lb 56ft/s 484ft/s 5.6G 5,075ft 19.4s 12s
OK Loki M1200 52.83lb 49ft/s 576ft/s 5.6G 5,101ft 18.8s 14s
OK Cesaroni L2375 50.17lb 78ft/s 654ft/s 11.0G 5,236ft 17.9s 16s
OK Cesaroni M1101 51.89lb 54ft/s 574ft/s 5.2G 5,245ft 19.1s 14s
OK AeroTech M1350 51.60lb 63ft/s 598ft/s 6.7G 5,317ft 18.6s 15s
OK AeroTech L2200 51.54lb 81ft/s 646ft/s 12.9G 5,339ft 18.0s 16s
OK AeroTech M1500 51.79lb 61ft/s 619ft/s 6.6G 5,373ft 18.8s 15s
OK Gorilla M1355 53.13lb 58ft/s 606ft/s 7.2G 5,401ft 18.9s 15s
OK AeroTech M1550 53.44lb 70ft/s 642ft/s 7.9G 5,683ft 19.1s 16s
OK AeroTech M1297 51.22lb 67ft/s 621ft/s 7.7G 5,736ft 19.3s 15s
OK Cesaroni M1230 51.68lb 58ft/s 618ft/s 5.7G 5,747ft 19.7s 15s
OK AeroTech M1780 51.39lb 76ft/s 668ft/s 9.5G 5,869ft 19.1s 16s
OK Cesaroni M2250 50.73lb 81ft/s 703ft/s 11.1G 5,990ft 18.9s 16s
OK Gorilla M1610 56.25lb 60ft/s 660ft/s 8.2G 6,030ft 19.7s 16s
OK AeroTech M650 52.30lb 53ft/s 504ft/s 4.7G 6,056ft 21.6s 10s
OK Cesaroni M1160 53.56lb 51ft/s 633ft/s 4.9G 6,073ft 20.6s 15s
OK Gorilla M1665 53.39lb 70ft/s 670ft/s 8.8G 6,084ft 19.5s 16s
OK Cesaroni M1830 50.97lb 73ft/s 691ft/s 8.8G 6,094ft 19.4s 16s
OK Cesaroni M1770 54.21lb 65ft/s 701ft/s 7.5G 6,251ft 19.9s 16s
OK Cesaroni M1670 52.53lb 67ft/s 696ft/s 8.4G 6,461ft 20.2s 16s
OK Cesaroni M2075 56.85lb 81ft/s 716ft/s 10.7G 6,499ft 19.9s 17s
OK Gorilla M1952 53.00lb 82ft/s 718ft/s 10.5G 6,508ft 19.9s 17s
OK Cesaroni M1810 52.94lb 67ft/s 735ft/s 8.1G 6,673ft 20.4s 17s
OK Cesaroni M1401 53.73lb 59ft/s 694ft/s 6.0G 6,690ft 20.9s 16s
OK Cesaroni M1400 52.69lb 69ft/s 692ft/s 8.4G 6,791ft 20.8s 16s
OK Cesaroni M1675 52.51lb 69ft/s 730ft/s 8.1G 6,807ft 20.5s 17s
OK Cesaroni M3100 52.06lb 91ft/s 806ft/s 15.4G 6,899ft 19.9s 18s
OK Loki M1882 53.20lb 76ft/s 755ft/s 10.2G 6,906ft 20.4s 17s
OK Cesaroni M1300 53.47lb 82ft/s 680ft/s 11.0G 7,001ft 21.1s 16s
OK Loki M1650 53.41lb 82ft/s 722ft/s 14.7G 7,144ft 20.9s 16s
OK AMW M2050 56.72lb 71ft/s 766ft/s 9.4G 7,190ft 20.9s 18s
OK AeroTech M1315 53.44lb 63ft/s 695ft/s 6.5G 7,220ft 21.6s 16s
OK Cesaroni M2080 56.52lb 73ft/s 777ft/s 9.5G 7,277ft 20.9s 17s
OK Loki M2550 53.19lb 84ft/s 821ft/s 12.1G 7,399ft 20.7s 18s
OK Cesaroni M1540 54.02lb 70ft/s 756ft/s 9.0G 7,513ft 21.6s 17s
OK Gorilla M1085 56.56lb 69ft/s 654ft/s 8.2G 7,573ft 22.3s 15s
OK Cesaroni M3700 53.74lb 98ft/s 876ft/s 16.8G 7,659ft 20.7s 19s
OK AeroTech M685 56.45lb 54ft/s 568ft/s 4.5G 7,810ft 24.7s 13s
OK Loki M1969 56.85lb 72ft/s 808ft/s 9.0G 7,872ft 21.8s 18s
OK AeroTech M1850 55.76lb 69ft/s 735ft/s 8.7G 7,951ft 22.3s 16s
OK Cesaroni M840 56.33lb 58ft/s 633ft/s 6.8G 7,962ft 24.1s 15s
OK KBA M3500 56.81lb 86ft/s 909ft/s 16.2G 8,096ft 21.5s 19s
OK Cesaroni M2045 54.38lb 77ft/s 855ft/s 9.8G 8,236ft 22.0s 18s
OK Cesaroni M2150 54.94lb 75ft/s 871ft/s 10.0G 8,369ft 22.2s 19s
OK Cesaroni M1590 54.40lb 72ft/s 817ft/s 8.6G 8,515ft 22.7s 18s
OK KBA M1450 57.79lb 65ft/s 803ft/s 7.8G 8,734ft 23.3s 17s
OK Cesaroni M1545 58.37lb 60ft/s 834ft/s 6.3G 8,891ft 23.6s 18s
OK Gorilla M2925 56.56lb 90ft/s 936ft/s 17.6G 8,923ft 22.2s 19s
OK AMW M1630 56.95lb 87ft/s 829ft/s 12.4G 9,039ft 23.1s 18s
OK Cesaroni M2020 56.50lb 79ft/s 918ft/s 9.6G 9,446ft 23.3s 19s
OK Loki M3000 56.79lb 100ft/s 999ft/s 16.7G 9,941ft 23.2s 20s
OK Loki M3464 57.75lb 97ft/s 1,085ft/s 17.3G 10,505ft 23.7s 21s
OK Cesaroni M2245 59.04lb 77ft/s 1,056ft/s 10.8G 11,108ft 24.8s 20s

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 (42ft/s)
failedG Contrail K456 speed at end of launch guide too slow (42ft/s)
failedG Contrail K300 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni K735 speed at end of launch guide too slow (39ft/s)
failedG Contrail K543 speed at end of launch guide too slow (43ft/s)
failedG AeroTech K780 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni K555 speed at end of launch guide too slow (32ft/s)
failedG AeroTech K560 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni K661 speed at end of launch guide too slow (38ft/s)
failedG Contrail K404 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni K510 speed at end of launch guide too slow (38ft/s)
failedG Hypertek L200 speed at end of launch guide too slow (15ft/s)
failedG Cesaroni L585 speed at end of launch guide too slow (36ft/s)
failedG Gorilla L695 speed at end of launch guide too slow (33ft/s)
failedG Hypertek L475 speed at end of launch guide too slow (35ft/s)
failedG Hypertek L225 speed at end of launch guide too slow (20ft/s)
failedG Hypertek L355 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni L820 speed at end of launch guide too slow (39ft/s)
failedG Hypertek L535 speed at end of launch guide too slow (40ft/s)
failedG Loki L780 speed at end of launch guide too slow (37ft/s)
failedG Hypertek L350 speed at end of launch guide too slow (32ft/s)
failedG Hypertek L550 speed at end of launch guide too slow (41ft/s)
failedG Hypertek L610 speed at end of launch guide too slow (42ft/s)
failedG Loki L480 speed at end of launch guide too slow (27ft/s)
failedG Gorilla L789 speed at end of launch guide too slow (41ft/s)
failedG Gorilla L425 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni L645 speed at end of launch guide too slow (37ft/s)
failedG Gorilla L985 speed at end of launch guide too slow (43ft/s)
failedG Loki L930 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni L851 speed at end of launch guide too slow (43ft/s)
failedG AeroTech L1040 speed at end of launch guide too slow (47ft/s)
failedG Contrail L369 speed at end of launch guide too slow (30ft/s)
failedG AeroTech L900 speed at end of launch guide too slow (45ft/s)
failedG AeroTech L875 speed at end of launch guide too slow (44ft/s)
failedG Loki L840 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni L395 speed at end of launch guide too slow (29ft/s)
failedG Loki M900 speed at end of launch guide too slow (42ft/s)

G These simulations were run with a launch guide length of 10ft (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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