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  #1  
Old 03-14-2012, 04:55 PM
RPS69 RPS69 is offline
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I just tried it a bit. Picked a 190G6/AS and tried to climb with the MW50 at manual's speed.

Very bad results indeed...

But most surprising is that overheat message comes on 80º
Manual states, 85º as safety, 100º as practical limit, 110º engine damage.

Now, I could take big damage on an engine from overheat, but injecting the MW50 doesn't mean overheating the engine, it implies over-pressure. (overreving of it, is prevented by prop pitch)

The only reports about engine damage from MW50 use were micro cracks on piston heads. This could be because of high pressures, and more likely for the fast cooling MW50 could have on piston heads when untimely injected.

But I have never read, nor on books, nor in the web anything about engines taking on fire with MW50 use.

Now, testing a bit more, I get some uncomfortable results, being that climbing with 110% without MW50 is a bit slower, but your engine overheats later...

Something is wrong here gents... and I don't believe that the right solution should be limiting the 109 to 100% throttle when MW50 is not engaged...
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  #2  
Old 03-15-2012, 05:07 PM
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Robo. Robo. is offline
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Quote:
Originally Posted by RPS69 View Post
But most surprising is that overheat message comes on 80º
Manual states, 85º as safety, 100º as practical limit, 110º engine damage
Oil or Water temperature?
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  #3  
Old 03-15-2012, 06:49 PM
RPS69 RPS69 is offline
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Quote:
Originally Posted by Robo. View Post
Oil or Water temperature?
Funny question! If it was oil, it will be extremely cool!! Actually that will be Normal oil temperature, not the overheat mark.
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  #4  
Old 03-15-2012, 08:24 PM
Mustang Mustang is offline
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Quote:
CONSTRUCTION DB 605: Cylinder barrels of steel are screwed and shrunk into the cast Silium-Gamma-alloy cylinder blocks. These dry liners project beyond block providing attachment by means of threaded rings which pull the liners against the finished face of the crankcase. This feature helped to save the weight of the studs and avoided the possibility of distortion. 3
Two inlet and two exhaust valves per cylinder operated by rocker arms directly from a single camshaft carried upon the head. Stellited valve seats, exhaust valve sodium cooled, ball joints interpose rockers and valve stems.

Forged light-alloy pistons have concave heads, each piston has a floating pin and three compression and two oil-scraper rings with one below the pin. Forked type connecting rods with serrated joints at big ends, roller bearing at big end has three tracks of 24 rollers each. Forked rod is keyed to outside of roller race, plain rod runs on lead-bronze bearing over race.

One piece forged steel crankshaft carried in seven plain lead-bronze bearings. Eight balance weights attached to crank webs, splined forward end to receive splined sleeve of reduction gear pinion.

Deep light alloy crankcase with webs at main bearings, tubular mounting at rear below crankshaft for installation of cannon which can fire through propeller shaft, light top cover.

Centrifugal supercharger on port side of engine driven through a fluid coupling by a shaft at right angles to crankshaft. This shaft is driven through bevel gears from the crankshaft, variation in propeller speed secured through variable filling of fluid coupling by two-stage engine driven pump receiving lubricating oil from the main pressure filter.

First stage delivers oil direct to coupling and second stage delivery is passed in varying proportions between crankcase and coupling by piston valve controlled by a capsule which is sensitive to inlet pressure. Second stage cuts in at approximately 5,000 ft. and full delivery occurs at approximately 11,500 ft.

Butterfly throttle which is capsule controlled regulates supercharger delivery, second throttle which is pilot operated controls air supply to engine and manifold pressure, first throttle subjected to pressure between two throttles, increased boost for take-off controlled by clockwork mechanism, mixture delivered by supercharger to looped manifold by large diameter pipe, dry-sump pressure-feed lubrication, gear type oil pumps, spray of oil directed upon reduction gears, main oil pressure line feeds crankshaft bearings, secondary line feeds supercharger fluid pump.
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  #5  
Old 03-15-2012, 08:59 PM
Mustang Mustang is offline
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See de red Lines


Last edited by Mustang; 03-15-2012 at 09:07 PM.
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  #6  
Old 03-15-2012, 09:19 PM
HundertneunGustav HundertneunGustav is offline
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what fuel do we have ingame?
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  #7  
Old 03-16-2012, 12:00 AM
Mustang Mustang is offline
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Quote:
RPS69=
I just tried it a bit. Picked a 190G6/AS and tried to climb with the MW50 at manual's speed.
Very bad results indeed...
But most surprising is that overheat message comes on 80º
Manual states, 85º as safety, 100º as practical limit, 110º engine damage
Quote:
Robo=
Oil or Water temperature?
Quote:
RPS69=
If it was oil, it will be extremely cool!! Actually that will be Normal oil temperature
BF 109 engines uses Oil, The overheat temp for BF 109 is wrong, at the ends something is wrong here gents!


Quote:
Originally Posted by HundertneunGustav View Post
what fuel do we have ingame?
In IL2 , many BF 109 dont reach the speed for C3 fuel usage, and their speed is for B4 fuel.


HundertneunGustav ...Give me time... please

I must read many many MANY data.
At the end I found the truth ...Alone!! No one helpme


1) Bf 109 MW50 cooling the engine, is a fact



2)***Some BF 109 engines, only can use C3

+With C3 fuel + NO MW50/MW30
And had 110% emergency power OK


3)***Others BF109 engines can use both B4 fuel + MW50/MW30 and C3 fuel NO MW50/MW30

+With B4 fuel + MW50 / MW30.
And had 110% emergency power OK

+With C3 fuel + NO MW50/MW30
And had 110% emergency power OK



4)***And others BF109 can use Both C3 fuel + MW50/MW30 and B4 fuel +MW50/MW30

+With C3 fuel + MW50/MW30
And had 110% emergency power OK

+With B4 fuel + MW50/MW30
And had 110% emergency power OK






ONLY An example , I must read more
I Flight my P51 over Germany Then I encounter BF 109 G14.

The BF 109 G14, is the same plane with diferents setups

A) ***Maybe use only *B4 fuel, and don´t have MW50 methanol supply
Dont have allowed 110% emergency power, dont get cooling from MW50- *Its a easy kill

B) ***Or maybe I encounter G14 uses only C3 fuel and don´t have MW50 methanol supply, He can use 110% emergency power, and get extra power only from C3 fuel, but dont have extra power and cooling effect from MW50.- But this G14 have best performance than "A)".

C) ***Or I can encounter G14 with *B4 fuel + MW50 - He can use 110% of emergency power , and get more power from MW50 and get engine and cooling for 10 minutes. have best performace than "A)" and "B)" - Maybe is a more dificult kill

D) ***Or I encounter a G14 with C3 fuel + MW50, He can use 110% emergency power, and get extra power from C3 fuel , and again get more power from MW50 and get engine cooling for 10 minutes, have best performance than "A)" "B)" "C)"

If C3 fuel is limited, the luftwaffe give the "D)" BF 109 to the best pilots

Then I must call my wingman.

I think...
Is difficult to find performance charts for all these possible situations.




No I can understand

Because Oleg made ​​a "combat simulator" and not make a "flight simulator"



For Cliffs of Dover....
if they will want to simulate the BF 109.. one day
They will go crazy





.

Last edited by Mustang; 03-16-2012 at 02:16 AM.
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