OT: P-51 and Bf-109

[Jorge_Stanbury]

All what have been said before, but I will add:

- numbers: by 1943/44 Allies has a strong numerical advantage,

- Soviet recovery: by 1943/44 the Soviets were becoming competitive in the air; LA-5s, YAK-9s, YAK-3s were almost as good as any German/ Allied plane, it was no longer feasible to maintain superiority in the East with outdated BF-109 models

[Bullwinkle58]

Symon/JWE, in several threads long ago, commented that the Japan plane stats used in the game came from refs that cited post-war Allied testing using high-octane avgas. Thus giving them performances the IJA/IJN never saw in combat. But those numbers got baked into the game. It was one reason as I recall that he re-did the performance data for DBB and the add-on files available in the forum. Not the only reason, but one. From memory.

[Dili]

Put a Mustang at lower level and see it trashed by several WW2 fighters.


High octane avgas in aircraft that have engines not prepared for high octane avgas is not relevant. So if he did it it is wrong.

[witpqs]

ORIGINAL: Bullwinkle58

Symon/JWE, in several threads long ago, commented that the Japan plane stats used in the game came from refs that cited post-war Allied testing using high-octane avgas. Thus giving them performances the IJA/IJN never saw in combat. But those numbers got baked into the game. It was one reason as I recall that he re-did the performance data for DBB and the add-on files available in the forum. Not the only reason, but one. From memory.

It was revised downward and - IIRC - the non-high octane numbers were used.

[Bullwinkle58]

My memory was faulty. I found the thread on the aircraft stats. Octane was discussed and some posters stated what I had recalled, but Symon stated he adjusted speed and climb on other bases, and that in fact higher octane would have hurt rather than helped in engines not designed to use it. Alfred referenced a long, technical octane thread elsewhere inside the stat thread.

[Dili]

Yep that is correct.

[wdolson]

ORIGINAL: Dili

Put a Mustang at lower level and see it trashed by several WW2 fighters.


High octane avgas in aircraft that have engines not prepared for high octane avgas is not relevant. So if he did it it is wrong.

I have read that when the US evaluated Japanese planes they did retune the engines for the higher octane gas.

Bill

[Denniss]

A better fuel typically results in higher performance unless it's too good so it's potential gets either wasted or leads to engine problems like spark plug fouling, improper combustion or even engine damage.

[rustysi]

ORIGINAL: Denniss

A better fuel typically results in higher performance unless it's too good so it's potential gets either wasted or leads to engine problems like spark plug fouling, improper combustion or even engine damage.

Recall reading sometime back in the day that Patton captured 100,000 gallons of German aviation fuel and dumped it in his tanks. Never found a corroborating source, but if true I wonder what affects that may have had.

[Dili]

ORIGINAL: wdolson

ORIGINAL: Dili

Put a Mustang at lower level and see it trashed by several WW2 fighters.


High octane avgas in aircraft that have engines not prepared for high octane avgas is not relevant. So if he did it it is wrong.

I have read that when the US evaluated Japanese planes they did retune the engines for the higher octane gas.

Bill

I doubt a re-tune is enough.