Focke Wulf Fw 190D-9 "Long Nose": new book

[gatt]

http://www.schifferbooks.com/military/luftwaffe/0764318764.html

From the same author of the famous book about the Ta152. Very good with many performance charts, photos and reports. If your interested in that beautiful fighter, buy it. Obviously its very expensive (about 60 USD)  

[GRUNHERZ]

Ordered!

[gatt]

There is one chart showing the climb rate of the 190D-9, Jumo 213 A engined, with increased boost modification (carried out on all 190D before they joined combat) and MW50 on.

The climb rate at medium-low altitude looks impressive: at about 4Km it is still about 4,100ft/min+ (about 21mt/sec), dropping considerably after.

At very low level  the climb rate was about 22,5mt/sec .... not bad. A tough opponent on the vertical even for a late Mk Spitfire.

[GScholz]

AH Dora-9 climbs at about 3800-3900 fpm at 4Km, slightly underrated compared to that book.

[gatt]

Probably AH's 190D-9 has not the standard increased boost modification (sa called "1900" from the hp made available) but "only" the MW50. However, the drop in climb performance after 4Km looks more pronounced in the book's chart.

You should see the chart regarding the top speed of the Fw190 family. Well, there was no room in the chart for the top speed at altitude of the 190D-12 .... A good match fro the Spitfire XXI and the P-47M indeed.

In the author's opinion, such performance at medium-low was made available especially for green LW pilots (almost always) fleeing away from allied fighters.

[Batz]

Naudet did some tests on the ah 190d9 and concluded it was most likely a 190d9 that made 1900ps.  

An early Dora with a stock Jumo 213A, without any modifications was not much of an improvement over the the Fw190A-8 except for somewhat better high altitude performance. The first  production Dora's soon received a field modification of a non-standard, low pressure, MW-50 installation "Oldenburg system" and a system referred to as "Ladedruckssteigerungs-Rüstatz" which increased  power output of the Jumo 213A from 1750 to 1900PS without an additional boosting agent such as MW-50 or GM-1 up until the first of 1945 when production high pressure MW-50 kits, compressor modifications and C3 fuel were prevelant in D-9's.

The addition of a "Ladedruckssteigerungs-Rüstatz" increased output from 1750 to 1900PS by allowing an increased maximum boost pressure , without an additional boosting agent. This could be used below 5000m and with the addition MW-50 gave an Emergency output of 2100PS. In addition, this enabled the previous "Emergency" power setting to be maintained for 30 min on the deck and the "Climb and Combat" power setting (1620PS) to be maintained indefinitely. This "Rüstatz" was in  use with III/JG54 in October '44 and was in wide spread use with three other Jagdgeschwader by December '44.
From what I have read in one publication, 1 PS-Pferdestaerke is equivalent to approximately 0.986hp. Others have stated that 1 PS equals 1 hp.

from here

http://jagdhund.homestead.com/files/Dora.htm

There is one chart showing the climb rate of the 190D-9, Jumo 213 A engined, with increased boost modification

I assume you mean the "Ladedruckssteigerungs-Rüstatz" that increased ps from 1750 to 1900ps. From what I understand this was c3 fuel injection just like was used in the a series 190s where vaporized fuel prevented detonation.

My understanding is the "Oldenburg system" was a simplified installation of an mw50 system. MW50 was installed on production planes in January 45. Due to shortages with the standard mw50 system the oldenburg system was used.

The oldenburg system used mw50 where the "Ladedruckssteigerungs-Rüstatz" used c3 injection.

I am no expert but this is what I gather from reading on other boards. Maybe some one else can clear it up better.

Ofcourse what this means in regards to the performance of the ah 190d9 I dunno .

Maybe some one more knowledgeable can tell us.

[GODO]

Batz, AH Test with D9, climbing at 203 mph (175 TAS), after taking off with 100% fuel.

12k 3500 fpm wep on
12.5k 2500 fpm wep off

Your link shows for Special Emergency, Takeoff and Emergency, Climb and combat and Power for best endurance:

12.1k 3766, 3095, 2746 and 1985fpm

The closer marks for what we have are "Special Emergency" and "Climb and combat" power settings.

[GScholz]

Did you use the best climb speed in that test? (I don't even know what the best climb speed is at 12K)

[GScholz]

Btw. Batz, did the real Ta-152 have such a nasty tendency to go into an unrecoverable nose up flat spin?

[gatt]

Originally posted by GRUNHERZ
Ordered!

[GRUNHERZ]

Nige G-2!  

[GScholz]

Nice 109 there Gatt, but one thing I noticed was the swastika. Didn't think Il-2 allowed those?

[gatt]

Yep, the original Il-2 and FB couldnt have the svastika painted, however you can esily have it with mods and custom skins.

P.S.: G-2 skin by Cpt.Farrel: http://www.cptfarrels.com

[Batz]

The swastika was is included in the russian relwease i believe, In the us and euro release the swastika was removed. You could download the "hakencross" file and put in your fb/il2 folder and start Il2/fb using the il2hk exe.

[gatt]

Heads up guys, from the same author is incoming (maybe before end of 2003) a book about the 190A series.

If it is as good as the Ta152 and 190D-9 ones it should be *very* interesting and full of performance charts, and tests reports, many never before published.