Author Topic: 190 question (Read 646 times)

Hristo · « **on:** March 27, 2000, 11:47:00 AM »

OK, does it have MW 50 or doesn't ?

My limited knowledge lets me believe it does, judging by deck speed, but then again, shouldn't it have 10 minutes at a time ?

gatt · « **Reply #1 on:** March 27, 2000, 12:07:00 PM »

According to Fw 190A-8 Aircraft Handbook, technical description No.284, 28-11-44, FW Aviation Corporation, Bremen: "commencing in July 1944, all Fw190A-8 a/c will be fitted with WEP. By overriding the supercharger boost regulator, this system increases the boost pressure, on t/o and WEP, at the low supercharger setting, from 1,42 ATA to 1,58 ATA; and at the high supercharger setting, from 1,42 ATA to 1,65 ATA. The resulting increase in max horizontal speed is about 22Km/h (13,6mph) at the low setting, and about 25Km/h (15,5mph) at the high setting. Due to the danger of engine overheating, this system must not be used for more than 10 minutes at a time".

With WEP @1,58-1,65 ATA, max horizontal speed at sea level was 352mph, and about 406mph (TAS) at about 18,000ft.

Regards,
Gatt
4^Stormo CT

P.S.: bring the Fw 190A-5 to AcesHigh!

[This message has been edited by gatt (edited 04-01-2000).]

funked · « **Reply #2 on:** March 27, 2000, 12:30:00 PM »

Yeah I think ours has MW 50 because of the 355 mph top speed at sea level.

However the plane is not making the 2100 hp that many books claim for the BMW 801D-2 with MW 50. The climb rate is much too low for the plane to have that much power.

My guess is that the maximum output of the plane in here is around 1900 hp.

[This message has been edited by funked (edited 03-27-2000).]

Hristo · « **Reply #3 on:** March 27, 2000, 01:00:00 PM »

But what about WEP duration ? It loses it after 5 minutes of continous use, not 10 minutes.

Not to mention, it doesn't feel as brutal as in G-10.

Pyro · « **Reply #4 on:** March 27, 2000, 01:16:00 PM »

No MW50 on the A-8 in AH.

------------------
Doug "Pyro" Balmos
HiTech Creations

No sniveling!

Hristo · « **Reply #5 on:** March 27, 2000, 01:32:00 PM »

Thanks for answer, Pyro.

I still hope you model it some day.

gatt · « **Reply #6 on:** March 27, 2000, 01:33:00 PM »

Quote

No MW50 on the A-8 in AH.
------------------
Doug "Pyro" Balmos

Ehm, at 2,700rpm, that is t/o and emergency power, with no raised supercharger, the 190A-8 should get not more than 338mph at sea level, and less than 400mph at about 20,000ft. Do I miss something?

Regards,
Gatt
4^Stormo CT

Ripsnort · « **Reply #7 on:** March 27, 2000, 01:45:00 PM »

We need the A5 in a Baaaaaaaad way!

------------------
Ripsnort(-rip1-)
=CO= II/JG2~Richthofen~
Aces High Training Corps
JG2 "Richthofen"

"Experience is a hard teacher because she
gives the test first, the lesson afterwards"

[This message has been edited by Ripsnort (edited 03-27-2000).]

funked · « **Reply #8 on:** March 27, 2000, 03:32:00 PM »

Gatt maybe they were able to run the increased boost without MW 50? Or maybe the aircraft had the petrol injection at the supercharger inlet which was used on many earlier 190's?

gatt · « **Reply #9 on:** March 28, 2000, 12:57:00 AM »

Funked, I really dont know.

HORIZONTAL SPEED
Looks like our A-8 has MW50 performance only as far as max sea level and altitude speeds are concerned (I mean on PYRO's charts) [GATT runs away when PYRO approaches].

CLIMB PERFO
The real 190A-8 (with MW50 and no GM-1 injection) took 6,6 minutes to get to 19,686ft with WEP (at 2,700rpm with raised supercharger, 1,58-1,65 ATA that is) and 7,5 minutes at 2,700rpm without raised supercharger pressures (1,42 ATA that is).
As you can see here our 190A-8 definitely doesnt have MW50. I wonder why

[GATT is far away and PYRO cannot hit him

].

Regards,
Gatt
4^Stormo CT

[This message has been edited by gatt (edited 03-28-2000).]

juzz · « **Reply #10 on:** March 28, 2000, 03:57:00 AM »

I think Pyro already mentioned what the story was in an old thread. Click here.

[This message has been edited by juzz (edited 03-28-2000).]

gatt · « **Reply #11 on:** March 29, 2000, 07:38:00 AM »

Yes, I've red that thread. The thing I dont understand is why in AH charts 190A-8's horizontal speeds look WEPed, while climbrate is clearly without WEP (a real brick, that is).

Gatt
4°Stormo CT

P.S.: bring the 190A-5 to AcesHigh ASAP!

juzz · « **Reply #12 on:** March 29, 2000, 11:46:00 PM »

The Fw 190A-8 in AH takes around 7.5 minutes to climb to 20k with WEP, which is 2700rpm and 43'HG (ata=???) on the dials.

According to the charts, on WEP it does 350mph @ S/L and ~410 at 20k.

I see what you mean.

wells · « **Reply #13 on:** March 30, 2000, 12:07:00 AM »

It's because it has (what'd we figure?) a whole bunch of armour that makes it useless as a fighter. The AH 190A8 is not using more than 1.42 ata as it's WEP. With MW50 and 1.65ATA, it would be downright scary!

Hristo · « **Reply #14 on:** March 30, 2000, 04:05:00 AM »

So, what would be best thing to do to make A-8 competitive :

- implement MW 50 loadout option
- remove the armor option (in case we actually have a Sturmbock)
- model A-5 or similar
- model the Dora

Yes, I still believe that single competitive LW plane is G-10, only thanks to the MW 50.