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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 30 motors that fit and appear to have enough thrust (734 motors didn't fit, 38 motors failed safety checks). 68 motor had thrust curves available and 123 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:   Madcow 4 inch V2 54mm
Owner: James Cramton
Body Diameter: 4.00in
Dry Weight: 5,894g
MMT Diameter: 54.0mm
MMT Length: 15.00in
CD: 0.30

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 6,406g 70ft/s 190ft/s 11.2G 596ft 6.3s 6s
OK Cesaroni I445 6,469g 53ft/s 210ft/s 7.5G 766ft 7.3s 6s
OK Cesaroni J1055 6,666g 82ft/s 348ft/s 16.6G 1,786ft 10.7s 10s
OK Cesaroni J430 6,694g 51ft/s 346ft/s 7.0G 1,992ft 11.8s 10s
OK AeroTech J460 6,683g 56ft/s 357ft/s 7.5G 2,126ft 12.1s 10s
OK AeroTech J1299 6,728g 97ft/s 402ft/s 21.5G 2,275ft 11.9s 11s
OK AMW J1365 7,013g 94ft/s 425ft/s 21.8G 2,516ft 12.5s 12s
OK AMW J475 7,304g 50ft/s 411ft/s 7.9G 2,687ft 13.6s 11s
OK Gorilla J465 7,076g 49ft/s 423ft/s 8.8G 2,820ft 13.9s 12s
OK AeroTech J450 7,117g 49ft/s 424ft/s 6.9G 2,855ft 14.1s 12s
OK AMW J395 7,162g 49ft/s 414ft/s 5.7G 2,878ft 14.3s 12s
OK AMW J325 7,124g 52ft/s 396ft/s 6.7G 2,898ft 14.4s 11s
OK Gorilla J485 7,084g 51ft/s 440ft/s 7.5G 2,994ft 14.3s 12s
OK AMW J440 7,123g 68ft/s 451ft/s 10.5G 3,184ft 14.4s 12s
OK Gorilla J535 7,119g 61ft/s 459ft/s 8.7G 3,195ft 14.5s 12s
OK Loki J525 7,134g 58ft/s 464ft/s 8.7G 3,211ft 14.6s 13s
OK AeroTech J1799 7,005g 112ft/s 499ft/s 30.1G 3,250ft 13.9s 13s
OK AeroTech J401 6,806g 51ft/s 452ft/s 6.2G 3,269ft 15.0s 12s
OK Cesaroni J1520 6,920g 101ft/s 500ft/s 24.6G 3,274ft 14.1s 13s
OK Cesaroni J295 7,013g 48ft/s 430ft/s 5.4G 3,422ft 15.8s 12s
OK Loki J820 7,104g 77ft/s 492ft/s 14.4G 3,437ft 14.6s 13s
OK AeroTech J540 6,978g 61ft/s 479ft/s 8.9G 3,455ft 15.1s 13s
OK AMW J745 7,114g 71ft/s 511ft/s 11.6G 3,659ft 15.2s 14s
OK AeroTech J415 7,062g 51ft/s 492ft/s 7.1G 3,885ft 16.2s 13s
OK Cesaroni J449 7,016g 52ft/s 508ft/s 7.2G 3,918ft 16.2s 13s
OK AeroTech K400 7,088g 54ft/s 500ft/s 6.8G 4,023ft 16.6s 13s
OK AeroTech J800 6,980g 72ft/s 541ft/s 12.9G 4,062ft 16.0s 14s
OK Cesaroni J760 6,971g 72ft/s 553ft/s 12.1G 4,121ft 16.1s 14s
OK AeroTech K535 7,158g 61ft/s 570ft/s 8.1G 4,711ft 17.5s 15s
OK AeroTech K2050 7,186g 108ft/s 636ft/s 30.1G 4,762ft 16.6s 16s

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 (37ft/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 (31ft/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 (23ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (30ft/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 (27ft/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 (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 (38ft/s)
failedG AeroTech J250 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 (42ft/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 Cesaroni J210 speed at end of launch guide too slow (37ft/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 (38ft/s)
failedG Cesaroni J244 speed at end of launch guide too slow (35ft/s)
failedG Loki J350 speed at end of launch guide too slow (43ft/s)
failedG Gorilla J167 speed at end of launch guide too slow (42ft/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 J395 speed at end of launch guide too slow (45ft/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 Loki J175 speed at end of launch guide too slow (43ft/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 (44ft/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 (44ft/s)

G These simulations were run with a launch guide length of 7ft (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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