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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 130 motors that fit and appear to have enough thrust (623 motors didn't fit, 57 motors failed safety checks). 184 motor had thrust curves available and 333 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:   4 inch Drago
Owner: Wayne Comfort
Body Diameter: 4.00in
Dry Weight: 11.64lb
MMT Diameter: 54.0mm
MMT Length: 39.00in
CD: 0.37

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 AeroTech I599 12.77lb 69ft/s 212ft/s 12.5G 719ft 6.9s 6s
OK Cesaroni I445 12.91lb 52ft/s 235ft/s 8.3G 921ft 8.0s 7s
OK Contrail J292 15.04lb 50ft/s 271ft/s 7.2G 1,463ft 10.3s 8s
OK Hypertek J270 14.50lb 50ft/s 299ft/s 6.7G 1,816ft 11.5s 8s
OK Cesaroni J1055 13.34lb 83ft/s 385ft/s 18.4G 2,039ft 11.2s 11s
OK Contrail J358 15.48lb 52ft/s 343ft/s 9.6G 2,138ft 12.3s 10s
OK Cesaroni J430 13.40lb 51ft/s 385ft/s 7.8G 2,282ft 12.4s 10s
OK AeroTech J460 13.38lb 54ft/s 396ft/s 8.4G 2,420ft 12.6s 11s
OK AeroTech J1299 13.48lb 92ft/s 444ft/s 23.8G 2,548ft 12.4s 12s
OK Contrail J272 15.49lb 51ft/s 368ft/s 7.3G 2,666ft 13.9s 10s
OK AMW J1365 14.11lb 93ft/s 468ft/s 24.1G 2,789ft 12.9s 12s
OK AMW J475 14.75lb 49ft/s 452ft/s 8.7G 2,989ft 14.0s 12s
OK Contrail J642 15.59lb 74ft/s 456ft/s 20.1G 3,035ft 13.7s 12s
OK Contrail J416 15.39lb 59ft/s 434ft/s 10.5G 3,082ft 14.4s 12s
OK AMW J395 14.44lb 48ft/s 456ft/s 6.4G 3,204ft 14.8s 12s
OK AMW J325 14.35lb 50ft/s 436ft/s 7.5G 3,233ft 14.9s 12s
OK Gorilla J485 14.26lb 50ft/s 485ft/s 8.3G 3,311ft 14.7s 13s
OK AMW J440 14.35lb 65ft/s 494ft/s 11.6G 3,484ft 14.8s 13s
OK Gorilla J535 14.34lb 59ft/s 504ft/s 9.6G 3,499ft 14.9s 13s
OK AeroTech J1799 14.09lb 104ft/s 549ft/s 33.1G 3,517ft 14.2s 14s
OK Loki J525 14.37lb 56ft/s 510ft/s 9.6G 3,518ft 14.9s 13s
OK Cesaroni J1520 13.90lb 94ft/s 551ft/s 27.1G 3,549ft 14.4s 14s
OK AeroTech J401 13.65lb 49ft/s 499ft/s 6.9G 3,603ft 15.4s 13s
OK Loki J820 14.31lb 76ft/s 539ft/s 15.8G 3,717ft 14.9s 13s
OK AeroTech J540 14.03lb 59ft/s 527ft/s 9.9G 3,761ft 15.4s 13s
OK AMW J475 14.93lb 52ft/s 511ft/s 7.8G 3,810ft 15.8s 13s
OK AMW K1720 14.62lb 104ft/s 583ft/s 29.7G 3,881ft 15.0s 14s
OK AMW J745 14.33lb 70ft/s 561ft/s 12.8G 3,947ft 15.5s 14s
OK AeroTech J415 14.22lb 49ft/s 539ft/s 7.8G 4,201ft 16.5s 13s
OK AeroTech K456 14.91lb 49ft/s 550ft/s 6.8G 4,207ft 16.6s 14s
OK Cesaroni J449 14.11lb 51ft/s 558ft/s 7.9G 4,234ft 16.5s 14s
OK AeroTech J800 14.03lb 70ft/s 593ft/s 14.2G 4,335ft 16.1s 14s
OK AeroTech K400 14.27lb 53ft/s 547ft/s 7.5G 4,348ft 16.8s 14s
OK AMW K665 15.47lb 57ft/s 588ft/s 11.5G 4,361ft 16.4s 14s
OK Cesaroni J760 14.01lb 67ft/s 608ft/s 13.4G 4,395ft 16.2s 15s
OK Cesaroni K454 14.71lb 49ft/s 577ft/s 7.4G 4,542ft 17.1s 14s
OK Gorilla K520 14.82lb 50ft/s 592ft/s 8.4G 4,545ft 17.0s 14s
OK Gorilla K555 15.12lb 50ft/s 598ft/s 8.9G 4,581ft 17.0s 15s
OK Gorilla K533 15.42lb 50ft/s 599ft/s 9.4G 4,682ft 17.2s 15s
OK Cesaroni K530 15.26lb 50ft/s 609ft/s 8.3G 4,705ft 17.3s 15s
OK Gorilla K630 15.08lb 58ft/s 618ft/s 11.3G 4,731ft 17.0s 15s
OK AMW K535 15.08lb 56ft/s 607ft/s 8.6G 4,793ft 17.4s 15s
OK KBA K700 14.95lb 64ft/s 650ft/s 13.2G 4,907ft 17.1s 15s
OK AeroTech K513 15.27lb 53ft/s 627ft/s 9.0G 4,948ft 17.5s 15s
OK AeroTech K2050 14.49lb 111ft/s 697ft/s 33.1G 4,957ft 16.6s 16s
OK AeroTech K535 14.43lb 59ft/s 621ft/s 9.0G 4,975ft 17.5s 15s
OK AMW K455 14.96lb 60ft/s 600ft/s 10.6G 5,012ft 17.7s 14s
OK Cesaroni K2045 14.48lb 107ft/s 712ft/s 34.6G 5,065ft 16.7s 16s
OK AMW K610 15.53lb 57ft/s 637ft/s 9.8G 5,095ft 17.7s 15s
OK AeroTech K695 14.92lb 62ft/s 665ft/s 12.9G 5,178ft 17.5s 15s
OK Gorilla K327 15.65lb 52ft/s 560ft/s 8.9G 5,393ft 18.8s 13s
OK Cesaroni K400 15.06lb 48ft/s 634ft/s 6.1G 5,508ft 19.0s 15s
OK Loki K690 16.93lb 56ft/s 688ft/s 10.4G 5,510ft 18.2s 16s
OK AMW K700 16.24lb 58ft/s 689ft/s 11.3G 5,540ft 18.2s 16s
OK AMW K935 14.96lb 75ft/s 716ft/s 15.5G 5,546ft 17.8s 16s
OK Loki K250 15.59lb 51ft/s 535ft/s 10.5G 5,563ft 20.0s 13s
OK Cesaroni K500 14.89lb 52ft/s 670ft/s 8.2G 5,595ft 18.6s 15s
OK AeroTech K550 14.92lb 59ft/s 669ft/s 11.4G 5,670ft 18.5s 15s
OK Cesaroni K515 15.29lb 54ft/s 679ft/s 9.0G 5,751ft 18.8s 15s
OK AeroTech K540 14.45lb 65ft/s 689ft/s 12.3G 5,751ft 18.4s 15s
OK AeroTech K1100 14.59lb 83ft/s 742ft/s 19.7G 5,756ft 18.0s 16s
OK Cesaroni K445 14.72lb 57ft/s 665ft/s 9.2G 5,828ft 19.0s 15s
OK AMW K855 16.32lb 64ft/s 732ft/s 13.9G 5,865ft 18.5s 16s
OK Gorilla K700 15.42lb 60ft/s 725ft/s 10.9G 5,890ft 18.7s 16s
OK Cesaroni K940 14.65lb 74ft/s 762ft/s 16.0G 5,968ft 18.3s 17s
OK Gorilla K763 15.59lb 63ft/s 748ft/s 11.9G 6,058ft 18.8s 17s
OK Cesaroni K650 16.03lb 56ft/s 739ft/s 9.9G 6,065ft 19.1s 16s
OK Cesaroni K520 15.11lb 56ft/s 711ft/s 8.1G 6,091ft 19.3s 16s
OK Cesaroni K630 14.75lb 63ft/s 740ft/s 11.0G 6,108ft 18.9s 16s
OK AMW K710 15.63lb 69ft/s 737ft/s 11.7G 6,245ft 19.1s 16s
OK Gorilla K805 15.55lb 62ft/s 766ft/s 15.3G 6,273ft 18.9s 17s
OK AMW K670 15.80lb 65ft/s 746ft/s 10.9G 6,287ft 19.2s 17s
OK AeroTech K805 15.04lb 66ft/s 770ft/s 12.6G 6,298ft 19.0s 17s
OK AeroTech K990 16.29lb 67ft/s 796ft/s 14.4G 6,505ft 19.2s 17s
OK AMW K580 15.66lb 65ft/s 734ft/s 14.5G 6,508ft 19.5s 16s
OK AeroTech K850 16.14lb 68ft/s 803ft/s 14.6G 6,546ft 19.3s 17s
OK AeroTech K1103 14.86lb 86ft/s 834ft/s 23.4G 6,676ft 19.1s 17s
OK Cesaroni K740 14.88lb 70ft/s 817ft/s 12.4G 6,867ft 19.7s 17s
OK Loki K527 15.99lb 59ft/s 766ft/s 9.7G 7,006ft 20.5s 16s
OK AMW K1250 15.64lb 86ft/s 861ft/s 22.2G 7,007ft 19.5s 18s
OK Loki K960 15.49lb 89ft/s 849ft/s 21.3G 7,055ft 19.6s 18s
OK Cesaroni K490 15.73lb 54ft/s 775ft/s 7.5G 7,136ft 20.9s 17s
OK Cesaroni K675 15.92lb 62ft/s 815ft/s 11.8G 7,151ft 20.3s 17s
OK Cesaroni K635 15.54lb 61ft/s 818ft/s 10.3G 7,171ft 20.4s 17s
OK Cesaroni K650 15.41lb 66ft/s 824ft/s 17.0G 7,257ft 20.4s 17s
OK Gorilla K980 17.06lb 73ft/s 851ft/s 16.8G 7,283ft 20.1s 18s
OK AeroTech K828 16.54lb 74ft/s 865ft/s 16.8G 7,417ft 20.3s 18s
OK Cesaroni K1200 15.24lb 83ft/s 918ft/s 19.3G 7,444ft 19.9s 18s
OK Cesaroni K570 15.35lb 66ft/s 823ft/s 12.2G 7,577ft 20.8s 17s
OK AeroTech K1275 16.02lb 89ft/s 919ft/s 21.0G 7,635ft 20.2s 18s
OK AMW K1075 17.46lb 73ft/s 890ft/s 16.0G 7,679ft 20.6s 18s
OK Cesaroni K600 15.81lb 62ft/s 844ft/s 10.1G 7,684ft 21.0s 18s
OK Cesaroni K780 15.39lb 70ft/s 906ft/s 13.6G 7,825ft 20.8s 18s
OK AeroTech K375 16.28lb 82ft/s 755ft/s 17.7G 7,953ft 21.8s 16s
OK AeroTech K700 16.13lb 71ft/s 886ft/s 14.0G 8,164ft 21.2s 18s
OK AeroTech K480 16.22lb 65ft/s 842ft/s 11.6G 8,177ft 21.6s 17s
OK Cesaroni K815 16.48lb 62ft/s 932ft/s 15.4G 8,228ft 21.3s 18s
OK AeroTech K455 16.68lb 77ft/s 787ft/s 16.7G 8,236ft 22.0s 17s
OK Cesaroni K750 16.17lb 65ft/s 926ft/s 12.4G 8,331ft 21.4s 18s
OK Gorilla K1075 17.24lb 72ft/s 962ft/s 16.1G 8,388ft 21.3s 19s
OK Loki K830 16.93lb 57ft/s 972ft/s 15.2G 8,438ft 21.7s 19s
OK Cesaroni K711 16.49lb 68ft/s 918ft/s 19.7G 8,491ft 21.7s 18s
OK KBA K1750 17.29lb 90ft/s 1,040ft/s 29.1G 8,612ft 21.1s 20s
OK Gorilla K470 16.77lb 65ft/s 819ft/s 13.2G 8,642ft 22.3s 17s
OK Cesaroni K820 16.01lb 73ft/s 958ft/s 22.2G 8,652ft 21.5s 19s
OK Cesaroni K1440 15.81lb 99ft/s 1,045ft/s 26.1G 8,664ft 21.0s 19s
OK Gorilla K1185 17.24lb 69ft/s 1,010ft/s 17.9G 8,738ft 21.6s 20s
OK KBA K750 17.45lb 71ft/s 932ft/s 14.3G 8,742ft 21.9s 18s
OK Loki K350 17.24lb 67ft/s 758ft/s 14.9G 8,808ft 23.5s 17s
OK Cesaroni K590 16.04lb 85ft/s 881ft/s 24.4G 8,821ft 22.1s 18s
OK AMW K1130 17.31lb 82ft/s 1,001ft/s 19.1G 8,875ft 21.7s 19s
OK Cesaroni K660 15.94lb 71ft/s 942ft/s 14.3G 8,907ft 22.0s 18s
OK AeroTech K1050 16.50lb 84ft/s 1,029ft/s 19.1G 9,036ft 21.8s 19s
OK Cesaroni K300 16.64lb 48ft/s 754ft/s 6.3G 9,056ft 24.0s 16s
OK AMW L1276 18.17lb 79ft/s 1,039ft/s 18.5G 9,205ft 22.1s 20s
OK AMW L985 17.31lb 77ft/s 1,019ft/s 18.1G 9,365ft 22.3s 20s
OK KBA L2300 17.44lb 108ft/s 1,134ft/s 38.7G 9,489ft 21.8s 21s
OK AeroTech L1090 17.00lb 77ft/s 1,043ft/s 16.5G 9,491ft 22.3s 19s
OK AeroTech L1000 16.48lb 80ft/s 1,075ft/s 17.1G 9,670ft 22.3s 19s
OK Cesaroni L990 16.57lb 80ft/s 1,086ft/s 21.1G 9,902ft 22.6s 20s
OK Cesaroni L730 16.59lb 75ft/s 1,021ft/s 15.5G 9,932ft 22.9s 19s
OK Cesaroni L1030 16.79lb 74ft/s 1,116ft/s 19.7G 9,952ft 22.6s 20s
OK Loki L1400 17.24lb 88ft/s 1,141ft/s 25.0G 9,973ft 22.4s 20s
OK Cesaroni L640 16.59lb 82ft/s 963ft/s 20.0G 9,984ft 23.1s 18s
OK Cesaroni L805 17.16lb 73ft/s 1,053ft/s 18.4G 10,053ft 23.1s 19s
OK Cesaroni L935 17.24lb 81ft/s 1,144ft/s 19.1G 10,817ft 23.5s 20s
OK Loki L1040 18.17lb 74ft/s 1,305ft/s 16.6G 12,647ft 25.0s 21s
warningsD AMW K590 15.43lb 9:1 thrust/weight ratio (no data)
warningsD Gorilla K695 14.94lb 10:1 thrust/weight ratio (no data)
warningsD Gorilla K828 15.69lb 12:1 thrust/weight ratio (no data)

D No simulation data found for this motor.

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 I117 speed at end of launch guide too slow (22ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (25ft/s)
failedG AeroTech I215 speed at end of launch guide too slow (36ft/s)
failedG AeroTech I229 speed at end of launch guide too slow (37ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (23ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni I218 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni I100 speed at end of launch guide too slow (33ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (28ft/s)
failedG Contrail J245 speed at end of launch guide too slow (41ft/s)
failedG Hypertek J115 speed at end of launch guide too slow (31ft/s)
failedG Contrail J355 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni J145 speed at end of launch guide too slow (35ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (42ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni J280 speed at end of launch guide too slow (37ft/s)
failedG Hypertek J170 speed at end of launch guide too slow (40ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (34ft/s)
failedG Hypertek J250 speed at end of launch guide too slow (44ft/s)
failedG Hypertek J120 speed at end of launch guide too slow (34ft/s)
failedG AeroTech J315 speed at end of launch guide too slow (43ft/s)
failedG AeroTech J180 speed at end of launch guide too slow (41ft/s)
failedG AeroTech J275 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni J240 speed at end of launch guide too slow (37ft/s)
failedG Hypertek J190 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J210 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni J293 speed at end of launch guide too slow (39ft/s)
failedG Gorilla J365 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni J244 speed at end of launch guide too slow (34ft/s)
failedG Loki J350 speed at end of launch guide too slow (41ft/s)
failedG Gorilla J167 speed at end of launch guide too slow (41ft/s)
failedG AMW J400 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J360 speed at end of launch guide too slow (42ft/s)
failedG Gorilla J465 speed at end of launch guide too slow (46ft/s)
failedG Gorilla J395 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni J380 speed at end of launch guide too slow (42ft/s)
failedG AeroTech J450 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (31ft/s)
failedG Gorilla J450 speed at end of launch guide too slow (45ft/s)
failedG Loki J175 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni J355 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni J295 speed at end of launch guide too slow (46ft/s)
failedG Loki J300 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni K360 speed at end of launch guide too slow (43ft/s)
failedG Gorilla K222 speed at end of launch guide too slow (43ft/s)
failedG AeroTech K185 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni K160 speed at end of launch guide too slow (34ft/s)
failedG AeroTech K270 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni K261 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni K260 speed at end of launch guide too slow (44ft/s)
failedG AeroTech K250 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni L265 speed at end of launch guide too slow (43ft/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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