[FM] Mitsubishi A6M

Hello fellows!

As we know in Update 1.51, the Mitsubishi A6M received new calculation done to the fuel consumption, which lead not only to a 1 hour minimum fuel load, but also to extra weight. The A6M seems to be much less versatile and more sluggish at speeds of 250kmh. However, I've done some research in order to figure what justified such increased fuel loads and came to an astonishing result.

Fuel loads in game:

Model Fuel load (max)
A6M2-11 2h 19 min
A6m2-22 2h 19 min
A6M3-32 2h 17 min
A6M3-22 2h 48 min
A6M3-22 Ko 3h 5 min
A6M5-52 2h 58 min
A6M5-52 Ko 2h 48 min
A6M5-52 Otsu 3h 5 min

Fuel Fuel consumption (l.p.h) per Engine:

Engine normal max nominal take off
Sakae 12 247L (65.25gal) 322L (85.07gal) 390L (103.03gal)
Sakae 21 295L (77.93gal) 420L (110.96gal) 485L (128.13gal)

Source: * A6M2/3 Manual

The "nominal" rating:

  • Sakae 12: 2500 RPM with 35,8"Hg (+150mmHg) at SL. = Military Power (100%)

  • Sakae 21: 2700 RPM with 37,8"Hg (+200mmHg) at SL. = Military Power (100%)

The "take off" rating:

  • Sakae 12: 2550 RPM with 39,8"Hg (+250mmHg) at SL. = War Emergency Power (WEP)

  • Sakae 21: 2750 RPM with 41,7"Hg (+300mmHg) at SL. = War Emergency Power (WEP)

Comparative Fuel consumption (l.p.h) per Source:

Source|A6M2/3 Manual|JICPOA Sakae 12|322L|345L Sakae 21|420L|435L

Source:

Fuel capacity:

Fuel capacity Model 21 Model 22 Model 32 Model 52
Wing tanks 390 528 420 528
Fuselage tank 145 60 60 60
Total 535 588 480 588

Source: JICPOA p.3

Calculation done at "nominal" rating:

Model Fuel load (max) new calculation
A6m2-22 2h 19 min 1h 40 min
A6M3-22 2h 48 min 1h 24 min
A6M3-32 2h 17 min 1h 8 min
A6M5-52 Ko 2h 48 min 1h 24 min
  • Calculation example: A6M2-21 (535 L / 322 Lph = 1.66 = 1h 40 min)

Conclusion:

It seems that the FM Developer using consumption rates from cruise speeds, instead the nominal rating of 100% power output. It does not make any sense for the current game meta to claculate with crusie speeds, the maps are to small and none is flying below 100% poer output.

/r/Warthunder Thread