Best piston engine(s) for fighters of 1945?

spicmart said:

How do the various Fw 190D versions (D-9 to D-15; Jumo 213 and DB 603 powered) fare against the latest Allied fighters,
especially compared to Griffon Spitfires?

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dedalos said:

Α D-13 with c3 fuel, decent building quality, and all the aerodynamic and mechanical futures that it's designers intended to have, would be quite competitive against Spitfire xiv. However such a combination never reached the operational units. The D series that saw operational service , were full of compromises, and very naturally outclassed by the contemporaries allied fighters

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dedalos said:

Α D-13 with c3 fuel, decent building quality, and all the aerodynamic and mechanical futures that it's designers intended to have, would be quite competitive against Spitfire xiv. However such a combination never reached the operational units. The D series that saw operational service , were full of compromises, and very naturally outclassed by the contemporaries allied fighters

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spicmart said:

IIrc the D-13 with B4 and MW50 was quite a bit faster than the XIV. About 750 km/h.

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dedalos said:

True. IF the engine was performing according to the specifications, IF the engine gap was sealed, IF the landing gear was fully enclosed
And could be even faster IF use the production ready Juno 213EB, IF had the integral engine cover, IF had the new more efficient and less druggy drum type radiator, IF it had the new high pressure Mw50,
So many Ifs....

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spicmart said:

Where is it written that the drum radiator was less draggy?
And how fast was the D-13, as is, really?

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dedalos said:

There s no universal answer for the late war german fighters performace. Individual aircraft, i have read , possesed remarkable performance , above the official figures. But the vast majority was under the official figures. Personally i believe, no operational D9 could reach 700 kmh/h.
The D13 should be easily over 700 km/h at altitude. If working properly. I posses no field performance trials for the D13.
I reasonable assumption would be 721 km/h with reasonable building quality and properly working jump213F. I would expect 750 km/h with full aerodynamic futures and top building quality.
Obviously the Fw190 wing was very draggy by the 1945 standarts(p51,tempest,spiteful, sea fury, hornet etc)

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spicmart said:

Grumman kept the classic wing profile (23000 something) for their latest F7F and F8F.

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dedalos said:

Α D-13 with c3 fuel, decent building quality, and all the aerodynamic and mechanical futures that it's designers intended to have, would be quite competitive against Spitfire xiv. However such a combination never reached the operational units. The D series that saw operational service , were full of compromises, and very naturally outclassed by the contemporaries allied fighters

Click to expand...