4.11 overheat and engine damage test results

[Jumoschwanz]

This page from the FW190A5 flight manual gives interesting facts about the recommended use of the aircraft's engine under all conditions.

Emergency power, 1.42 ata manifold pressure, is recommended for 3 minutes. In the P-51d this is the same as using 67" manifold pressure.

Steig- und Kampfleistung, Climb and Combat power is the 1.32 ata manifold pressure has an endurance of 30 minutes. In the P-51 Combat power is 61" manifold pressure.

This shows again how in patches prior to 4.11 how even with CEM engaged, the way we used the engines power on duel and fast dogfight servers was not historical or realistic at all.

According to the FW190 flight manual and data from other WWII aircraft, a flight sim like IL2 might let you:

Use emergency power in a FW190 for 3 minutes, or until the engine is actually overheated, if you continue to use it without reducing throttle you are going to damage it.

Use Climb and Combat power for 30 minutes before the engine has to be throttled back.

If you use Emergency power for as long as the engine can stand it, then until the engine cools down, you probably will not even be able to use regular Combat and Climb power for several minutes until your engine cools enough, leaving you vulnerable to those around you who fought only with Combat power and kept their engines cool!

So that is your gamble. If you fly as if you were in pre 4.11 patches of IL2 using full emergency power in your FW or P-51, then you had better be able to defeat your enemy and get to safety in the time span of a few minutes, because you could be left largely without engine power for a period of time!

If on the other hand you cultivate tactics and techniques that allow you to run actual Combat power then you will be able to fight and stay in combat for a very long time, maybe until you have to leave because either the job is done or you are out of fuel....

4.11 has handed IL2 pilots more realism. Those IL2 pilots who can't hack it or adapt and either stick with older patches or manufacture MODS and hacks to switch 4.11 aircraft back to 4.10 style CEM and power, are labeling themselves as gamers, and not WWII flight simmers.

It is interesting that finally the IL2 sim gets a non-crippled 1.42 190-a4 right at the same time the extra power becomes unavailable for use except for a more limited amount of time. Oh well...

S!



Lastly, in many theaters and periods of WWII aircraft parts and supplies were very scarce for one reason or another. Engines and parts were used past their recommended service lives, or with the threat of no future supplies squadrons used strategies that would let them get the most use and inflict the most damage before their equipment was used up. It is easy to find WWII pilot accounts where they are flying fighter aircraft that are past their prime and/or patched together with parts cannibalized from damaged aircraft etc..

So not only might a WWII fighter pilot be even more apt to try to preserve his engine with the threat of short supplies, he may not even have been ABLE to use it's full performance as it was built because of lack of parts, poor fuel or an amount of hours on the engine and airframe that meant it could break even below combat power and stresses.

P.S. In this video I attack ace p-38 lates with a 44' Dora and I never use the "erhohte notleistung" or "increases emergency power". Instead of creating an E advantage with the engine and WEP as most of us have always done in the past, I make sure I start out with a 2000 meter altitude advantage and do not abuse the engine for combat. I have limited and old equipment to fly with, and in the heat of battle I have two settings available for prop pitch, so I set them to the two most useful settings I want to try. Here I try auto and 0% prop pitch. Other settings may have worked, and switching from auto may not even be necessary at all when WEP is not used, we will all just have to test our favorite aircraft and find out what we like and what will let us do what we need to do....

http://www.youtube.com/profile?user=.../6/LiUWt3jR47A