Author Topic: Just like FW190D?.....  (Read 1544 times)

Offline HoHun

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Just like FW190D?.....
« Reply #30 on: September 08, 2005, 03:18:19 PM »
Hi Wilbus,

>HoHun the GM1 system in the Ta152 (or rather for the Jumo 213 E1 equiped in the Ta152) was approved for 60, 100 and 150 g/sec.

You might be right, I was trying to decipher a rather poor scan. Still, at the altitude for the speed you described, the Jumo was using only the medium rate of injection, not the high rate.

Regards,

Henning (HoHun)

Offline Wilbus

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Just like FW190D?.....
« Reply #31 on: September 08, 2005, 03:52:34 PM »
Rgr HoHun, just saying :)

Not sure if they ever even used the Gm1 system operational, I doubt they did as it was only used above maximum boost altitude and as you know, that max boost alt of the Jumo 213 E1 is pretty high.

While it is false that the Ta152 conducted 262 field protectiong sorties many of the sorties they did fly were low level. The well known Ta152 vs Tempest encounter was low alt for example.
Rasmus "Wilbus" Mattsson

Liberating Livestock since 1998, recently returned from a 5 year Sheep-care training camp.

Offline HoHun

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Just like FW190D?.....
« Reply #32 on: September 08, 2005, 04:31:50 PM »
Hi Wilbus,

>While it is false that the Ta152 conducted 262 field protectiong sorties many of the sorties they did fly were low level. The well known Ta152 vs Tempest encounter was low alt for example.

Quite right. I believe the Luftwaffe at that time was past the luxury of assigning special duties to specialized planes and used the Ta 152 just as any other fighter.

Frank3 is correct in pointing out the lack of Allied activity at extreme altitude. I'm not sure why the Ta 152H was built at all - it seems that the Nazi leadership feared that the B-29 would be sent to Europe and fly at altitudes where the standard Luftwaffe fighters were out of their element.

At the operating altitudes of the B-17 and B-24 (and their escorts), I suspect the short-wing Ta 152 would have been the better aircraft.

Regards,

Henning (HoHun)

Offline Wilbus

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Just like FW190D?.....
« Reply #33 on: September 09, 2005, 03:08:17 AM »
Well HoHun, the Ta152 design/planning started well before the war ended, the specifications for a high alt fighter date back to December 43. Already in 42 Kurt Tank realised that the BWM radial wouldn't cut it, atleast not in the near future and started investigating new engines which eventually led up to the 190 D.

They did need a high altitude fighter, they may not have needed an extreem high altitude fighter like the Ta152 H but non the less they needed something that could compete with the Ponys and P47's at alt.

The Dora gave them this but Kurt Tank considered the Dora just a middle step between the Antons and the Ta152.

Wether the Ta152 A, B and C would have done better we can only guess, however, the H did very well, specially against the odds they always flew. It was just as capable at low level as any other piston engine fighter at the time if not more so (level deck speed wasn't the only thing that mattered).
Would have been interesting to see, had the development gone a bit faster and had the RLM/government not been idiots there might have been other versions of the Ta152. On the paper those planes are quite awsome atleast.
Rasmus "Wilbus" Mattsson

Liberating Livestock since 1998, recently returned from a 5 year Sheep-care training camp.

Offline HoHun

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Just like FW190D?.....
« Reply #34 on: September 09, 2005, 06:48:37 PM »
Hi Wilbus,

>Well HoHun, the Ta152 design/planning started well before the war ended, the specifications for a high alt fighter date back to December 43.

Dietmar Hermann has published a good book called "Fw 190 - Der Weg zum Höhenjäger" ('Fw 190 - The Path to the High Altitude Fighter') that points out even earlier developments. Apparently, mass production of the lightened Fw 190B with BMW801D, an enlarged wing and exterior air intakes for greater ram effect was just about to start when it was cancelled in favour of more Antons. I speculate this might have been due to the requirements of the Eastern Front.

>The Dora gave them this but Kurt Tank considered the Dora just a middle step between the Antons and the Ta152.

Hm, I believe the D-9 at least wasn't competetive against the P-51 and P-47 at high altitude due to the limited power of the Jumo 213A up there. But you're right on Tank's opinon - maybe "stopgap" would be even more accurate.

>Wether the Ta152 A, B and C would have done better we can only guess, however, the H did very well, specially against the odds they always flew.

Oh, I didn't mean to suggest it was a poor fighter in any way! But a small-wing Ta 152 would have had less drag and a higher G limit, in addition to less weight due to the absence of the GM-1 equipment, and so it would have compared even more favourably to the Allied designs at most altitudes.

Regards,

Henning (HoHun)

Offline Crumpp

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Just like FW190D?.....
« Reply #35 on: September 09, 2005, 09:44:22 PM »
Sorry Widewing,

I have not checked on this thread in a while nor was I recieving email notices.

Fortunately, Hohun has it covered.

I have never seen a 500mph Ta152.  Now there is a 770kph (+) calculated chart for FW190D12 performance.

For flight tested results the FW-190D12 hit 730kph with the Ta-152C taking the top spot at 745kph.

All the best,

Crumpp

Offline Wilbus

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Just like FW190D?.....
« Reply #36 on: September 10, 2005, 05:06:57 AM »
Quote
Dietmar Hermann has published a good book called "Fw 190 - Der Weg zum Höhenjäger" ('Fw 190 - The Path to the High Altitude Fighter') that points out even earlier developments. Apparently, mass production of the lightened Fw 190B with BMW801D, an enlarged wing and exterior air intakes for greater ram effect was just about to start when it was cancelled in favour of more Antons. I speculate this might have been due to the requirements of the Eastern Front.


Heya! I don't have that book yet although it is very high on my list. I have "Focke-Wulf ta 152: The storry of Luftwaffes late war, high-altitude fighter" by the same author, absolutely love the book.
I had no idea of the Fw190 B actually, never heard of it which gives me yet another reason to buy the book.

 
Quote
maybe "stopgap" would be even more accurate.
Stopgap was the exact word I was looking for, just couldn't seem to find it in my brain when I needed it.

While the Dora may not have been up to par with P51's and P47's at high alt I definatly think it was bellow 25k or so, atleast the pilots who flew it loved it and it was quite superior to the Antons over 20k. Still, the Jumo 213 A had limited high altitude performance.

As for the H, yes... the shorter wing Ta152's would have produced less drag and greater roll. However, it would have given them worse turning ability aswell. One can argue over which is most important, depends on situation I guess but speed would probarly have been better. The much improved turn radius of the Ta152 H compared to Fw 190's was praised by the pilots who did fly the Ta 152 though as Willi Reschke describes in his combat report vs Tempests.

Quote
Oh, I didn't mean to suggest it was a poor fighter in any way! But a small-wing Ta 152 would have had less drag and a higher G limit, in addition to less weight due to the absence of the GM-1 equipment, and so it would have compared even more favourably to the Allied designs at most altitudes.


Don't think the G limit was a problem really. Infact, Ta 152 pilots said that unlike the Fw 190 they had flown prior they loved the Ta 152 because it turned so well, some said that they could grey out even at lower speed turns, something they hadn't experienced before.
I know you didn't sugest it was bad plane, that wouldn't make much sense...

The weight things is interesting though. The Ta152 C would have been the next production modell (some say a few were produced and some say a few saw combat but this is very uncertain and not very probarble part from possibly a few C0's pre-production).
The Ta 152 C1 (first planned prouduction version) was actually heavier than the Ta 152 H1. 5300kg compared to 5217kg (normal flight weight).

It had a shorter wings and thus less wing area (faster roll but worse turn radius). It was to use the DB 603 LA or L engine instead of the Jumo (looking at charts the DB engine gives better performance bellow 10,000 meters or so).

The C was to be a Destroyer though and most of the extra weight was armament. It was also capable of Attack sorties carrying ordnance.

Normal armament for the C1 was to be 2xMg151's in upper fuselage with 150 rpg. 2 more Mg151's in each wing root with 175rpg and a hub mounted Mk 108 30mm with 90 rounds.
(I want it!)

The B version and A version were also planned for heavy armament.
Rasmus "Wilbus" Mattsson

Liberating Livestock since 1998, recently returned from a 5 year Sheep-care training camp.

Offline Horrido!

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Just like FW190D?.....
« Reply #37 on: September 10, 2005, 06:38:32 AM »
Allied fighters where routinely flying at 30k and the 109s and 190s didn't do too well up there (otherwise the Jugs would have been toast). Flying at the same alt as your enemy is not favorable, to gain an advantage the Germans logically aimed for 40k.

Offline AmRaaM

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Just like FW190D?.....
« Reply #38 on: September 11, 2005, 08:24:15 AM »
nothing like it.

Offline Wilbus

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Just like FW190D?.....
« Reply #39 on: September 11, 2005, 08:41:12 AM »
Never mind.
Rasmus "Wilbus" Mattsson

Liberating Livestock since 1998, recently returned from a 5 year Sheep-care training camp.