D9 BOOST info (Pyro take a look at this)

[MANDOBLE]

To simplify, Ladedruckssteigerungs-Ruestatz = LR.

Naudet, I agree that the "previous" emergency setting is not with MW50, but it is referring to the 1900ps, that is just the "previous" mentioned (1750ps) in planes with LR.

Literaly:
With the "Ladedruckssteigerungs-Ruestatz" this becomes 1900ps, sustainable for 30 minutes on the deck.

And this is not 1750ps

So, we have "Takeoff & Emergency" at 1750ps for planes WITHOUT LR (10 mins) and 1900ps for planes WITH LR (30 mins).


The addition of a "Ladedruckssteigerungs-Ruestatz" increased output from 1750 to 1900PS without an additional boosting agent such as MW-50 or GM-1. This could be used below 5000m and with the addition MW-50 gave an Emergency output of 2100PS.

Now we may add MW50 to that "Takeoff & Emergency" setting to have about 2100ps - 2240ps with "Ladedruckerhoehung". What is "Ladedruckerhoehung" ?? Is equivalent to LR?

In any case, it seems MW50 may be used with or without LR. It seems logical to have more duration with LR than without it. Perhaps 10 mins without and 30 mins with LR (with a power increase of 300ps).


As far as I understand:

1 - 1750ps without LR (10 mins).
2 - 1900ps with LR (30 mins on the deck).
3 - 2100ps or more Special Emergency with C3 (petrol injection for 10 mins).
4 - 2600ps with A Lader als Bodenmotor. (? mins).
5 - 2100ps with B4 and Ladedruckerhoehung with MW50 and using Takeoff & Emergency or Special Emergency power. (? mins).
6 - 1680ps Climb & Combat (30 mins) for planes WITHOUT LR .
7 - ???ps Climb & Combat (indefinitely) for planes WITH LR.


Zuma, I know you can't understand a single bit about all this, but keep tuned, your posts are becomming funnier and funnier

[Naudet]

1st all power settings are in PS, not HP.
There is a very small difference.

And yes R4M you got it right.

Just i forgot that the climb&combat is only 1620PS.

And now why both WEPs setting can only be held for 10mins.

Basicly cause they work different.

In both cases you run the Engine on maximum boost pressure (1.8 ata) and maximum rpg (3250rpm).

This will let the engine run hot. And if you dont shut it down, you will cripple the engine.

Now the funny thing is, the MW50 works both as antidetonate and additionally cools the engine. Cause of this you can use it 10mins.

But the normal WEP (in our case 1900PS) will just run at increased pressure 1.8 ata and full 3250rpm without additional cooling. This means you have to cut off WEP before engine temp reaches critical levels, and this will be the case after 3-10mins.

The advantage of MW50 is its cooling effect. Which allows the engine to run quite long (10mins) on maximum power.

Also i know from pilot reports that D9 could be flown longer on WEP than just 10mins. But than (as in the P51 of Bud Anderson) the valves were glowing red. and some other parts were melted.

And Mandoble, you wont want to run MW50 longer than 10mins at a time, cause after this the engine stress would become so great it would wore out extremly fast.


But to clear everything up, i just asked Bryan again how long the powersettings will last.
Once he answered i will post any possible D9 power settings here.

[Glasses]

That's one of the things I liked about WB3 you had MW50 and you would use for the described times and once you ran out of the injection system your wep was out until you replaned , although it sure would be nice if for hi alttiude as described here once you ran out of MW50 boost that was it but, for lo alttiude you would use the regular type of wep associated with the cooling periods.

I see that the current WEP system in AH is more simplistic at best but I am sure it could be improved as it is describes with these official figures.

[Naudet]

Mandoble, i now got an answer and what is most important a view into the original source.

And cause the original source is in german i can be 100% sure that there is no misunderstanding, as i am a german.

With the Ladedrucksteigerungsrüstsatz, the times i gave are correct.
Here again the listing of possible power settings for a D9 with LR.

2100PS => 10mins
1900PS => 10mins
1750PS => 30mins
1620PS => forever


but also the source states, that JG54 was outfitted with LR in Nov. 44 and that all D9s in Jan. 45 were fitted with the LR.

Also it is stated that most D9 were also outfitted with the Oldenburg MW50 installation.

From that single source (Focke Wulf, Jagdflugzeug, Fw 190 A, Fw190 "Dora", TA 152, Peter Rodeike, ISBN 3-923457-44-8)
we can say that the majority of the D9s that were flown used the above powersettings.