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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 (680 motors didn't fit, 32 motors failed safety checks). 127 motor had thrust curves available and 221 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:   Exacta54mm
Owner: John Taylor
Body Diameter: 4.00in
Dry Weight: 8.80lb
MMT Diameter: 54.0mm
MMT Length: 20.00in
CD: 0.75

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 9.93lb 77ft/s 277ft/s 16.3G 1,008ft 7.9s 7s
OK Cesaroni I445 10.07lb 60ft/s 307ft/s 10.9G 1,251ft 8.9s 8s
OK AeroTech J250 10.36lb 48ft/s 373ft/s 6.3G 2,093ft 11.7s 9s
OK AeroTech J315 10.68lb 48ft/s 410ft/s 7.0G 2,230ft 11.9s 9s
OK Cesaroni J1055 10.50lb 91ft/s 490ft/s 23.4G 2,254ft 11.1s 10s
OK Cesaroni J430 10.56lb 58ft/s 481ft/s 10.1G 2,522ft 12.2s 10s
OK AeroTech J460 10.54lb 62ft/s 492ft/s 10.8G 2,614ft 12.3s 10s
OK AeroTech J1299 10.64lb 106ft/s 560ft/s 30.2G 2,636ft 11.8s 11s
OK AMW J1365 11.27lb 99ft/s 583ft/s 30.3G 2,818ft 12.1s 11s
OK AMW J400 11.85lb 49ft/s 504ft/s 8.2G 2,843ft 13.1s 11s
OK AMW J475 11.91lb 55ft/s 547ft/s 10.8G 3,042ft 13.2s 11s
OK Cesaroni J380 11.65lb 48ft/s 545ft/s 7.4G 3,136ft 13.7s 11s
OK Gorilla J395 11.36lb 48ft/s 546ft/s 8.2G 3,139ft 13.6s 11s
OK Gorilla J465 11.41lb 53ft/s 566ft/s 12.1G 3,154ft 13.4s 11s
OK AeroTech J450 11.50lb 53ft/s 566ft/s 9.6G 3,207ft 13.6s 11s
OK AMW J395 11.60lb 55ft/s 547ft/s 8.1G 3,256ft 13.8s 11s
OK AeroTech J1799 11.25lb 115ft/s 684ft/s 41.9G 3,274ft 12.7s 12s
OK Gorilla J485 11.42lb 57ft/s 587ft/s 10.4G 3,283ft 13.6s 11s
OK Gorilla J450 12.01lb 49ft/s 571ft/s 10.4G 3,305ft 13.9s 11s
OK Cesaroni J1520 11.06lb 104ft/s 688ft/s 33.6G 3,308ft 12.8s 12s
OK AMW J325 11.51lb 56ft/s 512ft/s 9.6G 3,308ft 14.0s 11s
OK AMW J440 11.51lb 73ft/s 587ft/s 14.7G 3,378ft 13.5s 11s
OK Gorilla J535 11.50lb 68ft/s 609ft/s 12.3G 3,380ft 13.5s 11s
OK Loki J525 11.53lb 63ft/s 617ft/s 11.8G 3,401ft 13.6s 12s
OK Loki J820 11.47lb 84ft/s 651ft/s 19.4G 3,464ft 13.3s 12s
OK AeroTech J401 10.81lb 55ft/s 597ft/s 9.0G 3,499ft 14.0s 11s
OK Loki J175 11.56lb 48ft/s 441ft/s 7.2G 3,534ft 15.3s 9s
OK AMW K1720 11.78lb 115ft/s 717ft/s 37.0G 3,539ft 13.2s 13s
OK AeroTech J540 11.19lb 68ft/s 630ft/s 12.6G 3,542ft 13.7s 11s
OK Cesaroni J355 11.39lb 52ft/s 580ft/s 7.6G 3,654ft 14.6s 11s
OK AMW J745 11.49lb 79ft/s 676ft/s 16.1G 3,654ft 13.8s 12s
OK AMW J475 12.09lb 58ft/s 604ft/s 9.9G 3,657ft 14.3s 11s
OK Loki J300 11.70lb 50ft/s 542ft/s 6.8G 3,686ft 15.0s 11s
OK Cesaroni J295 11.27lb 53ft/s 545ft/s 7.7G 3,722ft 14.8s 11s
OK Gorilla K222 12.32lb 49ft/s 463ft/s 6.8G 3,865ft 16.0s 9s
OK AeroTech J800 11.19lb 81ft/s 708ft/s 18.1G 3,873ft 14.0s 12s
OK AeroTech J415 11.38lb 56ft/s 629ft/s 9.7G 3,897ft 14.6s 11s
OK AeroTech K456 12.07lb 55ft/s 644ft/s 8.6G 3,908ft 14.7s 12s
OK Cesaroni J449 11.27lb 58ft/s 659ft/s 10.2G 3,913ft 14.6s 12s
OK Cesaroni J760 11.17lb 76ft/s 731ft/s 17.1G 3,914ft 14.0s 12s
OK AMW K665 12.63lb 64ft/s 692ft/s 13.9G 3,932ft 14.3s 12s
OK Cesaroni K360 11.52lb 49ft/s 624ft/s 6.8G 3,955ft 15.1s 12s
OK AeroTech K400 11.43lb 58ft/s 634ft/s 9.6G 4,048ft 15.0s 12s
OK Gorilla K520 11.98lb 56ft/s 694ft/s 10.2G 4,116ft 14.9s 12s
OK Gorilla K555 12.28lb 58ft/s 703ft/s 11.0G 4,126ft 14.9s 12s
OK Cesaroni K454 11.87lb 55ft/s 669ft/s 9.4G 4,127ft 15.0s 12s
OK AeroTech K2050 11.65lb 120ft/s 853ft/s 41.1G 4,149ft 13.9s 13s
OK AMW K475 12.09lb 57ft/s 685ft/s 9.4G 4,168ft 15.1s 12s
OK Gorilla K630 12.24lb 66ft/s 725ft/s 13.8G 4,181ft 14.7s 13s
OK Cesaroni K530 12.42lb 56ft/s 710ft/s 9.6G 4,187ft 15.0s 12s
OK Gorilla K533 12.58lb 55ft/s 694ft/s 11.7G 4,188ft 15.0s 12s
OK Cesaroni K2045 11.64lb 126ft/s 875ft/s 42.7G 4,196ft 13.9s 13s
OK KBA K700 12.11lb 72ft/s 768ft/s 15.8G 4,257ft 14.6s 13s
OK AMW K535 12.24lb 61ft/s 702ft/s 10.7G 4,276ft 15.1s 12s
OK AeroTech K513 12.43lb 60ft/s 723ft/s 10.8G 4,327ft 15.0s 12s
OK AeroTech K535 11.59lb 64ft/s 714ft/s 11.4G 4,345ft 15.0s 12s
OK AeroTech K695 12.08lb 70ft/s 773ft/s 16.1G 4,398ft 14.8s 13s
OK AMW K455 12.12lb 68ft/s 676ft/s 13.4G 4,440ft 15.3s 12s
OK AMW K610 12.69lb 64ft/s 734ft/s 12.2G 4,448ft 15.2s 13s
OK AMW K935 12.12lb 81ft/s 839ft/s 19.2G 4,604ft 14.9s 13s
OK AMW K700 13.40lb 65ft/s 789ft/s 13.2G 4,664ft 15.4s 13s
OK AeroTech K1100 11.75lb 94ft/s 870ft/s 24.7G 4,664ft 14.7s 13s
OK Loki K690 14.09lb 62ft/s 790ft/s 12.5G 4,667ft 15.5s 13s
OK Cesaroni K500 12.05lb 60ft/s 755ft/s 10.3G 4,753ft 15.7s 13s
OK AeroTech K550 12.08lb 67ft/s 750ft/s 14.0G 4,760ft 15.5s 12s
OK AeroTech K540 11.61lb 74ft/s 775ft/s 15.6G 4,765ft 15.3s 12s
OK Cesaroni K400 12.22lb 53ft/s 704ft/s 7.8G 4,804ft 16.3s 12s
OK Cesaroni K940 11.81lb 81ft/s 892ft/s 20.1G 4,808ft 15.0s 13s
OK AMW K855 13.48lb 74ft/s 842ft/s 16.4G 4,814ft 15.3s 13s
OK Gorilla K327 12.81lb 57ft/s 607ft/s 11.1G 4,818ft 16.4s 11s
OK Cesaroni K515 12.45lb 59ft/s 761ft/s 11.2G 4,857ft 15.8s 13s
OK Gorilla K700 12.58lb 67ft/s 833ft/s 13.3G 4,885ft 15.7s 13s
OK Cesaroni K445 11.88lb 66ft/s 734ft/s 11.6G 4,934ft 16.0s 12s
OK Gorilla K763 12.75lb 66ft/s 859ft/s 14.6G 4,949ft 15.6s 13s
OK Cesaroni K630 11.91lb 68ft/s 839ft/s 13.9G 4,959ft 15.6s 13s
OK Cesaroni K650 13.19lb 64ft/s 840ft/s 11.4G 4,968ft 15.8s 13s
OK Gorilla K805 12.71lb 68ft/s 873ft/s 18.6G 5,037ft 15.5s 13s
OK Cesaroni K520 12.27lb 61ft/s 793ft/s 10.3G 5,053ft 16.1s 13s
OK AeroTech K805 12.20lb 74ft/s 879ft/s 15.5G 5,058ft 15.6s 13s
OK AMW K710 12.79lb 76ft/s 826ft/s 14.5G 5,103ft 15.8s 13s
OK Loki K250 12.75lb 58ft/s 572ft/s 13.1G 5,104ft 17.7s 11s
OK AMW K670 12.96lb 72ft/s 841ft/s 13.5G 5,137ft 15.9s 13s
OK AeroTech K1103 12.02lb 99ft/s 965ft/s 29.1G 5,164ft 15.2s 14s
OK AMW K580 12.82lb 76ft/s 808ft/s 17.9G 5,303ft 16.1s 13s
OK Cesaroni K740 12.04lb 78ft/s 919ft/s 15.4G 5,371ft 15.8s 13s
OK AMW K1250 12.80lb 98ft/s 993ft/s 27.4G 5,385ft 15.5s 14s
OK Loki K960 12.65lb 95ft/s 964ft/s 26.3G 5,433ft 15.7s 14s
OK Cesaroni K1200 12.40lb 96ft/s 1,052ft/s 23.9G 5,569ft 15.6s 14s
OK Cesaroni K635 12.70lb 68ft/s 896ft/s 12.7G 5,604ft 16.4s 13s
OK Cesaroni K650 12.57lb 73ft/s 905ft/s 21.0G 5,633ft 16.3s 13s
OK Loki K527 13.15lb 63ft/s 835ft/s 12.0G 5,652ft 16.9s 13s
OK Cesaroni K490 12.89lb 59ft/s 829ft/s 9.2G 5,724ft 17.1s 13s
OK Cesaroni K780 12.55lb 77ft/s 998ft/s 16.9G 5,859ft 16.3s 14s
OK Cesaroni K570 12.51lb 73ft/s 881ft/s 15.1G 5,884ft 16.7s 13s
OK Cesaroni K600 12.97lb 69ft/s 906ft/s 12.5G 5,938ft 16.9s 13s
warningsD AMW K590 12.59lb 11:1 thrust/weight ratio (no data)
warningsD Gorilla K695 12.10lb 13:1 thrust/weight ratio (no data)
warningsD Gorilla K828 12.85lb 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 (26ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (30ft/s)
failedG AeroTech I215 speed at end of launch guide too slow (43ft/s)
failedG AeroTech I229 speed at end of launch guide too slow (43ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (27ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni I218 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni I100 speed at end of launch guide too slow (39ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni J145 speed at end of launch guide too slow (41ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni J280 speed at end of launch guide too slow (42ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (40ft/s)
failedG AeroTech J180 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J275 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J240 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J210 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni J293 speed at end of launch guide too slow (45ft/s)
failedG Gorilla J365 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J244 speed at end of launch guide too slow (39ft/s)
failedG Loki J350 speed at end of launch guide too slow (47ft/s)
failedG Gorilla J167 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J360 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (33ft/s)
failedG AeroTech K185 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni K160 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni K261 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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