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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 99 motors that fit and appear to have enough thrust (641 motors didn't fit, 51 motors failed safety checks). 147 motor had thrust curves available and 268 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:   LOC Doorknob
Owner: Sam Barone
Body Diameter: 7.67in
Dry Weight: 142.0oz
MMT Diameter: 54.0mm
MMT Length: 24.00in
CD: 0.70

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 160.1oz 70ft/s 265ft/s 16.0G 684ft 6.2s 6s
OK Cesaroni I445 162.3oz 53ft/s 286ft/s 10.6G 817ft 6.8s 6s
OK Cesaroni J1055 169.2oz 84ft/s 456ft/s 22.5G 1,238ft 7.7s 7s
OK Hypertek J270 187.7oz 52ft/s 312ft/s 8.5G 1,321ft 8.8s 5s
OK AeroTech J1299 171.4oz 92ft/s 520ft/s 29.4G 1,383ft 7.9s 7s
OK Cesaroni J430 170.2oz 51ft/s 409ft/s 10.0G 1,406ft 8.6s 7s
OK AeroTech J460 169.8oz 57ft/s 415ft/s 10.5G 1,438ft 8.5s 6s
OK AMW J1365 181.5oz 92ft/s 540ft/s 29.7G 1,471ft 8.1s 7s
OK AeroTech J1799 181.2oz 106ft/s 631ft/s 41.2G 1,616ft 8.2s 8s
OK Cesaroni J1520 178.2oz 96ft/s 628ft/s 31.4G 1,632ft 8.3s 8s
OK AMW J475 191.7oz 49ft/s 455ft/s 9.7G 1,642ft 9.1s 7s
OK AeroTech J450 185.1oz 48ft/s 464ft/s 8.9G 1,720ft 9.4s 7s
OK Gorilla J485 184.0oz 51ft/s 480ft/s 9.6G 1,734ft 9.3s 7s
OK AMW K1720 189.7oz 106ft/s 657ft/s 35.3G 1,738ft 8.5s 8s
OK Loki J820 184.7oz 78ft/s 560ft/s 19.2G 1,749ft 8.8s 7s
OK Gorilla J535 185.2oz 60ft/s 506ft/s 12.2G 1,762ft 9.1s 7s
OK AMW J395 186.7oz 49ft/s 435ft/s 7.9G 1,766ft 9.6s 7s
OK AMW J440 185.4oz 68ft/s 489ft/s 14.6G 1,767ft 9.1s 7s
OK Loki J525 185.7oz 56ft/s 509ft/s 11.2G 1,770ft 9.2s 7s
OK AMW J325 185.4oz 53ft/s 388ft/s 9.5G 1,818ft 9.9s 7s
OK AeroTech J540 180.2oz 60ft/s 498ft/s 12.1G 1,819ft 9.2s 7s
OK AeroTech J401 174.2oz 52ft/s 466ft/s 8.9G 1,833ft 9.5s 7s
OK AMW J745 185.0oz 68ft/s 565ft/s 15.7G 1,844ft 9.0s 7s
OK AeroTech J800 180.3oz 75ft/s 575ft/s 17.9G 1,923ft 9.1s 7s
OK Cesaroni J760 180.0oz 70ft/s 600ft/s 17.0G 1,933ft 9.2s 7s
OK AMW J475 194.7oz 54ft/s 485ft/s 9.9G 1,938ft 9.8s 7s
OK AeroTech K2050 187.6oz 110ft/s 762ft/s 39.5G 1,939ft 8.7s 8s
OK Cesaroni K2045 187.5oz 106ft/s 786ft/s 40.4G 1,946ft 8.7s 8s
OK AMW K665 203.3oz 57ft/s 560ft/s 12.3G 1,989ft 9.5s 8s
OK Cesaroni J295 181.5oz 49ft/s 392ft/s 7.7G 2,011ft 10.4s 6s
OK Cesaroni J449 181.6oz 51ft/s 508ft/s 10.1G 2,011ft 9.8s 7s
OK AeroTech J415 183.2oz 50ft/s 480ft/s 9.2G 2,020ft 9.9s 7s
OK AeroTech K456 194.3oz 50ft/s 498ft/s 8.6G 2,033ft 10.0s 7s
OK Gorilla K630 197.0oz 58ft/s 581ft/s 12.2G 2,091ft 9.7s 8s
OK KBA K700 195.0oz 63ft/s 627ft/s 14.3G 2,092ft 9.5s 8s
OK Gorilla K555 197.6oz 52ft/s 560ft/s 10.1G 2,095ft 10.0s 7s
OK Gorilla K520 192.9oz 50ft/s 540ft/s 9.3G 2,095ft 10.0s 7s
OK AeroTech K400 184.1oz 55ft/s 473ft/s 9.5G 2,107ft 10.2s 7s
OK Cesaroni K454 191.1oz 49ft/s 506ft/s 9.3G 2,124ft 10.1s 7s
OK Cesaroni K530 199.8oz 50ft/s 549ft/s 8.6G 2,125ft 10.1s 7s
OK Gorilla K533 202.6oz 50ft/s 543ft/s 11.0G 2,130ft 10.0s 7s
OK AeroTech K695 194.5oz 61ft/s 602ft/s 15.6G 2,158ft 9.6s 7s
OK AMW K535 197.0oz 57ft/s 539ft/s 10.4G 2,174ft 10.1s 7s
OK AeroTech K513 200.1oz 54ft/s 559ft/s 10.4G 2,180ft 10.0s 7s
OK AeroTech K535 186.6oz 60ft/s 531ft/s 11.3G 2,183ft 9.9s 7s
OK AeroTech K1100 189.1oz 86ft/s 697ft/s 24.5G 2,207ft 9.4s 8s
OK AMW K935 195.2oz 75ft/s 679ft/s 18.8G 2,208ft 9.5s 8s
OK AMW K610 204.3oz 57ft/s 574ft/s 12.1G 2,241ft 10.1s 7s
OK AMW K455 195.1oz 63ft/s 500ft/s 13.3G 2,269ft 10.3s 7s
OK Cesaroni K940 190.2oz 75ft/s 706ft/s 19.9G 2,274ft 9.5s 8s
OK AMW K700 215.7oz 57ft/s 616ft/s 11.7G 2,305ft 10.1s 8s
OK Loki K690 226.7oz 55ft/s 623ft/s 10.9G 2,323ft 10.2s 8s
OK AMW K855 216.8oz 65ft/s 667ft/s 14.8G 2,333ft 9.9s 8s
OK AeroTech K540 187.0oz 65ft/s 569ft/s 15.5G 2,352ft 10.0s 7s
OK AeroTech K550 194.5oz 60ft/s 561ft/s 13.1G 2,367ft 10.2s 7s
OK Cesaroni K500 194.1oz 54ft/s 545ft/s 9.9G 2,380ft 10.5s 7s
OK Gorilla K700 202.5oz 59ft/s 644ft/s 13.0G 2,381ft 10.2s 8s
OK Gorilla K763 205.2oz 62ft/s 667ft/s 13.9G 2,393ft 10.1s 8s
OK AeroTech K1103 193.5oz 91ft/s 766ft/s 28.9G 2,395ft 9.5s 8s
OK Gorilla K805 204.6oz 63ft/s 683ft/s 16.5G 2,406ft 10.0s 8s
OK Cesaroni K630 191.7oz 63ft/s 625ft/s 13.8G 2,412ft 10.1s 7s
OK AeroTech K805 196.4oz 66ft/s 662ft/s 15.0G 2,426ft 10.0s 8s
OK Cesaroni K515 200.3oz 55ft/s 556ft/s 11.2G 2,436ft 10.5s 7s
OK Cesaroni K650 212.2oz 57ft/s 633ft/s 10.3G 2,436ft 10.4s 8s
OK AeroTech K990 216.4oz 67ft/s 721ft/s 15.5G 2,463ft 10.0s 8s
OK Cesaroni K400 196.7oz 50ft/s 494ft/s 7.7G 2,472ft 11.1s 7s
OK Cesaroni K445 191.3oz 60ft/s 515ft/s 11.5G 2,488ft 10.7s 7s
OK AMW K710 205.9oz 66ft/s 641ft/s 14.3G 2,492ft 10.2s 7s
OK AMW K1250 206.0oz 89ft/s 797ft/s 27.2G 2,494ft 9.7s 8s
OK AMW K670 208.5oz 63ft/s 634ft/s 13.3G 2,511ft 10.4s 8s
OK Cesaroni K520 197.6oz 58ft/s 570ft/s 10.2G 2,515ft 10.7s 7s
OK Loki K960 203.6oz 86ft/s 748ft/s 26.2G 2,541ft 9.9s 8s
OK Cesaroni K1200 199.6oz 81ft/s 816ft/s 23.7G 2,550ft 9.7s 8s
OK Gorilla K327 206.1oz 51ft/s 441ft/s 10.7G 2,551ft 11.4s 6s
OK Cesaroni K740 193.8oz 68ft/s 682ft/s 15.0G 2,557ft 10.2s 8s
OK AMW K580 206.3oz 67ft/s 591ft/s 17.8G 2,614ft 10.6s 7s
OK AeroTech K1275 212.1oz 86ft/s 790ft/s 25.6G 2,635ft 9.9s 8s
OK AeroTech K828 220.4oz 74ft/s 727ft/s 20.4G 2,696ft 10.3s 8s
OK Cesaroni K675 210.4oz 61ft/s 659ft/s 14.5G 2,709ft 10.6s 8s
OK Cesaroni K635 204.4oz 60ft/s 635ft/s 12.4G 2,715ft 10.7s 8s
OK Cesaroni K650 202.3oz 64ft/s 647ft/s 20.9G 2,733ft 10.6s 7s
OK Cesaroni K780 202.0oz 71ft/s 723ft/s 16.8G 2,767ft 10.4s 8s
OK Cesaroni K1440 208.8oz 97ft/s 899ft/s 31.3G 2,769ft 9.9s 8s
OK Loki K250 205.2oz 53ft/s 395ft/s 13.0G 2,778ft 12.8s 6s
OK Loki K527 211.6oz 59ft/s 603ft/s 11.9G 2,810ft 11.2s 7s
OK Cesaroni K490 207.4oz 53ft/s 565ft/s 9.2G 2,858ft 11.5s 7s
OK Cesaroni K570 201.4oz 68ft/s 609ft/s 15.0G 2,869ft 10.9s 7s
OK Cesaroni K600 208.7oz 61ft/s 635ft/s 12.4G 2,893ft 11.0s 8s
OK AeroTech K700 213.8oz 72ft/s 678ft/s 16.7G 2,948ft 10.8s 7s
OK Cesaroni K750 214.6oz 66ft/s 715ft/s 14.6G 2,953ft 10.8s 8s
OK Cesaroni K820 211.9oz 73ft/s 756ft/s 27.1G 2,993ft 10.7s 8s
OK Cesaroni K711 219.5oz 70ft/s 688ft/s 23.8G 3,049ft 11.0s 8s
OK AeroTech K480 215.3oz 64ft/s 619ft/s 14.2G 3,109ft 11.4s 7s
OK Cesaroni K660 210.7oz 71ft/s 699ft/s 17.5G 3,147ft 11.1s 7s
OK AeroTech K375 216.3oz 80ft/s 504ft/s 20.8G 3,256ft 12.2s 6s
OK Cesaroni K590 212.3oz 89ft/s 583ft/s 29.7G 3,265ft 11.4s 7s
warningsD AMW K590 202.6oz 10:1 thrust/weight ratio (no data)
warningsD Gorilla K695 194.8oz 13:1 thrust/weight ratio (no data)
warningsD Gorilla K828 206.8oz 14:1 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 (24ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (26ft/s)
failedG AeroTech I215 speed at end of launch guide too slow (38ft/s)
failedG AeroTech I229 speed at end of launch guide too slow (38ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (25ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (30ft/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 (26ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni I100 speed at end of launch guide too slow (36ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (30ft/s)
failedG Hypertek J115 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni J145 speed at end of launch guide too slow (37ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (44ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni J280 speed at end of launch guide too slow (39ft/s)
failedG Hypertek J170 speed at end of launch guide too slow (42ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (36ft/s)
failedG Hypertek J250 speed at end of launch guide too slow (45ft/s)
failedG Hypertek J120 speed at end of launch guide too slow (35ft/s)
failedG AeroTech J315 speed at end of launch guide too slow (44ft/s)
failedG AeroTech J180 speed at end of launch guide too slow (43ft/s)
failedG AeroTech J275 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni J240 speed at end of launch guide too slow (38ft/s)
failedG Hypertek J190 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J210 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni J293 speed at end of launch guide too slow (41ft/s)
failedG Gorilla J365 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni J244 speed at end of launch guide too slow (36ft/s)
failedG Loki J350 speed at end of launch guide too slow (42ft/s)
failedG Gorilla J167 speed at end of launch guide too slow (40ft/s)
failedG AMW J400 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J360 speed at end of launch guide too slow (43ft/s)
failedG Gorilla J465 speed at end of launch guide too slow (47ft/s)
failedG Gorilla J395 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J380 speed at end of launch guide too slow (43ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (32ft/s)
failedG Gorilla J450 speed at end of launch guide too slow (44ft/s)
failedG Loki J175 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J355 speed at end of launch guide too slow (47ft/s)
failedG Loki J300 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni K360 speed at end of launch guide too slow (45ft/s)
failedG Gorilla K222 speed at end of launch guide too slow (45ft/s)
failedG AeroTech K185 speed at end of launch guide too slow (38ft/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 (44ft/s)
failedG Cesaroni K261 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni K260 speed at end of launch guide too slow (45ft/s)

G These simulations were run with a launch guide length of 5ft (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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