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Author Topic: Interesting turn times and radius from Soviet sources  (Read 2406 times)

Offline Kurfürst

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Interesting turn times and radius from Soviet sources
« on: January 03, 2006, 06:50:22 AM »
From " History of aircraft manufacture in USSR", p256, noting turn radius of various fighters :

All At 1000m altitude

Spitfire IXLF - 235m
Yak 1 - 275m
Yak 9? - 290m
La-5 : 310m
La-5FN : 295m
Me109G-2 : 290m
FW190A : 340m
P-39 : 253-280m

Turn times :

Allison P-51 : 23 sec
P-47D-10 : 26 sec
P-39D-2 : 17.7-18.7 sec
P-39Q-15 : 20-21
P-63A-10 : 21 sec
Spit VB : 18.8
Spit IXLF : 18.5sec
Hurri IIA : 19-20
P-40C : 18 sec
P-40E : 19.2
109F-4 : 19.6-20.5
109G-2 : 20-21.5 (clean)
109G-2 : 22.6 (with gondolas)
Yak9 : 17-18
La5 : 19
Yak 1 : 17-19
Lagg3 : 18-19
Yak3 : 17 sec
FW 190A-8 : 21-22 (lightened w/o external cannons, at 3986kg)
Fw190A-4 : 22-23sec
FW 190A-5 : 22-23
FW 190D-9 : 22-23 (at 1780 HP)
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Offline F4UDOA

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Interesting turn times and radius from Soviet sources
« Reply #1 on: January 03, 2006, 08:19:10 AM »
Looks good to me.

Do they list weights? Do they have the turn radius for the American A/C?
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Offline Kurfürst

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Interesting turn times and radius from Soviet sources
« Reply #2 on: January 03, 2006, 08:54:47 AM »
Yes they list weights, but since these were usually at the normal t-o weight, I wanted to spare some time. The only one with the varying weight is the FW 190 series, but I noted that. Also, some (typicall LW becuase of their many boosts) aircraft vary with engine power.

Re turn radius, I find that on the page that deals with the Spitfire (pretty general, but there as some info as well). The book is some 450+ pages, cyrillic Russian text, dozens of tables and graphs of all sorts of things... I have to OCR and translate it. Checking through it, I did not find much more, they note though the 'climb in battle turn' for most planes.

No F4U specs at all, sorry. Just the ones the Russians came accross, Mustangs, P-39, P-63, P-47, Spit, Hurri, Mosquito.
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Offline F4UDOA

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Interesting turn times and radius from Soviet sources
« Reply #3 on: January 03, 2006, 12:47:21 PM »
Yeah,

I didn't think they would have any F4U information, but the P-47, P-63 and Allison Mustang are interesting. I know the Germans captured an F4U but I have never seen any test data from them. Wouldn't that be a fun read.

I have a turn rate/radius calculator that does acceleration, calculates drag etc. I have been playing with the 190A5 based on the data from the Navy test and it is amazingly accurate when compared to the VVS test.

If I put in 2.5G's the turn time is right at 23 seconds with a radius of about 950ft or roughly 300meters. It also builds an EM diagram for the A/C with a thrust to weight graph. It was done by Zigrat formally from these boards. You can vary the G load to find the best rate and radius or you can leave it at 1G to check climb and acceleration.

I swear you could sell it. It is in Excel if you want a copy.
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Offline Kurfürst

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Interesting turn times and radius from Soviet sources
« Reply #4 on: January 03, 2006, 01:06:32 PM »
Hi,

I think I already got that spreadsheet a long ago from your(?) site. Pretty good, though I did not manage to find out the turn time calculator back then. I guess I will try out again.

The thing I wonder about is the turn performance of VVS planes... their turn radius is quite big, otoh the turn times are amongst the lowest... why? They are underpowered?

The other thing I noticed is the effect of gondolas on the 109G. Sure they hurt turn rate, but given the spec of these things, you'd expect something like 30+secs...

OH, I forgot, when you see something like "17-19 secs" it means the turn in one direction is better.
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Offline Grits

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Interesting turn times and radius from Soviet sources
« Reply #5 on: January 03, 2006, 03:53:04 PM »
Buh bye Kurfie.
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Offline Slash27

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Interesting turn times and radius from Soviet sources
« Reply #6 on: January 03, 2006, 05:31:29 PM »
ah...    Skuzzy took out the trash.:aok
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Offline Angus

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Interesting turn times and radius from Soviet sources
« Reply #7 on: January 03, 2006, 05:48:59 PM »
Who put the "persona non grata" beneath Kuffie's name?
Pyro?
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It was very interesting to carry out the flight trials at Rechlin with the Spitfire and the Hurricane. Both types are very simple to fly compared to our aircraft, and childishly easy to take-off and land. (Werner Mölders)

Offline 1K3

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Interesting turn times and radius from Soviet sources
« Reply #8 on: January 03, 2006, 05:49:36 PM »
LOL we just lost a guy who could provide us a ton of information about 109s

are there any people still alive in this BBS who can provide us more info about 109s like Kurfie (minus his attitide)?

if i remember this correctly kurfie pointed that 109 flaps was manually controlled by a wheel and its flaps can be used beyond 700km/h @ 10 degrees down.  he also pointed out that late 109s (such as 109K) were aerodynamically cleaner than late spitfires (BUT the controls are STIFF as usual like the 109Gs)
« Last Edit: January 03, 2006, 06:13:34 PM by 1K3 »
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Offline Angus

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Interesting turn times and radius from Soviet sources
« Reply #9 on: January 03, 2006, 06:15:07 PM »
He is still around I belive.
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It was very interesting to carry out the flight trials at Rechlin with the Spitfire and the Hurricane. Both types are very simple to fly compared to our aircraft, and childishly easy to take-off and land. (Werner Mölders)

Offline 1K3

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Interesting turn times and radius from Soviet sources
« Reply #10 on: January 03, 2006, 06:18:08 PM »
Quote
Originally posted by Angus
He is still around I belive.


Maybe he's :rofl  at us this time:(
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Offline Slash27

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Interesting turn times and radius from Soviet sources
« Reply #11 on: January 03, 2006, 07:00:05 PM »
Quote
Originally posted by 1K3
LOL we just lost a guy who could provide us a ton of information about 109s

 



and?
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Offline Morpheus

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Interesting turn times and radius from Soviet sources
« Reply #12 on: January 03, 2006, 07:11:52 PM »
Quote
LOL we just lost a guy who could provide us a ton of information about 109s


Not to worry. He has 3 other accounts that he uses to post here, and I'm sure he'll be in shortly to drown us in his vast sea of knowledge.
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Offline Angus

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Interesting turn times and radius from Soviet sources
« Reply #13 on: January 03, 2006, 07:33:37 PM »
Actually there are some here that have about the same info as he does, on the 109 I mean.

And as for history, and not just technical stuff, the forum prompts many a fine researcher, both on allied and axis terms.

As for technical stuff, the forum has some members with excellent knowledge and experience.

Wouldn't be much of a loss, now would it?
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It was very interesting to carry out the flight trials at Rechlin with the Spitfire and the Hurricane. Both types are very simple to fly compared to our aircraft, and childishly easy to take-off and land. (Werner Mölders)

Offline Morpheus

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Interesting turn times and radius from Soviet sources
« Reply #14 on: January 03, 2006, 07:47:49 PM »
Widewing
Bodhi
Karnak
Kweassa
Dan/Corky
Pyro

Just to name a few.

We dont need him. And are better off without him.
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