Spitfire XIV vs Bf-109 K-4 vs La-7 vs Yak-3

[Mitya]

Originally Posted by Ramirezzz

Тезка, не сочти за грубость, но посмотри сначала в книжки, прежде чем гыгыкать

Я не так перевел!!! Типа соррии... Я не на то умножил!!! У меня вышло примерно 570 км/ч. Почему я и удивился. Надо было на 1,609,а я что-то не то сделал...
Вот скачал тут кое-что по ла-7 как раз. выложу. А эти данные у первых серий ла-7. Последующие, насколько я знаю, выдавали больше.
Тезка, а ты английский хорошо знаешь? Может я тебе дам перевести, что напишу, а то я в переводчик загоняю и... Результат на лицо.

[Hunter368]

English????????????????

[DerAdlerIstGelandet]

Mitya there is a section for people who do not wish to post in english.

In the main forums please use english, this is an english speaking forum.

[bada]

Originally Posted by Waynos

Hey Bada, that's great info. Could you do the same for the other two in the pic with readable serials?

They are RB159 (not RS, its just a trick of the light) and RB150. I can't make out the one at the back but I think it may be RB155.

Of course, with great pleasure!

RB159
FF 30-12-43 (first flight)
33MU 1-1-44 (maintenance unit)
610S 'DW-D' 17-2-44
DeH 'Gem' mods 4-6-44 (DeHavilland= certainly slight upgrade or maintenance)
610S crashed out of fuel Moldeghem Belgium CAC 20-1-45 (dammaged category C)
350S 15-2-45
CB ops 23-2-45 (Dammaged Category B in operation)
151RU ??/??/?? (Repair unit)
41S 26-4-45
416S 20-9-45
ASTH 21-11-45 (air service trainning= maintenance unit)
sold scrap H.Bath 27-10-49

RB150
FF 29-11-43
33MU 2-12-43
610S 1-1-44
FAAC 16-2-44 (fatal air accident category C)
DeH 'Gem' mods 6-4-44 (DeHavilland= slight upgrade or in this case more probably repair)
610S 'DW-A' Missing after entering cloud 15m SW of Boulogne 30-8-44 W/O J J D Bonfield killed = SOC (struck of Charge)

the last one seems to not compute: never flew for the 610sq
RB155
FF 18-12-43
39MU 24-12-43
DeH 23-8-44
350S 'MN-O' 19-4-45
FAAC 21-9-45
412RSU RNethAF
SoTT 31-7-47

You can find each frame's history on this site:

de Havilland - Main , i consider it as the spit bible! Never else saw such great compiled data!

[Waynos]

Thanks for that! I must have guessed wrong on the last one. It is interesting to see what became of the planes in my pics

[claidemore]

Russian translators are very sensitve to font.
Sometimes they work, sometimes they dont. I have better luck translating in small batches of text, rather than entire web pages.

[Waynos]

Thanks for the link, I think it must be this one;

RB170
EA G65 39MU 17-3-44
610S 'DW-G' 11-4-44
AST 14-4-44 nea 26-2-51
to 6843M 29-5-51

[SDA0013]

Originally Posted by claidemore

Production for the Yak 3, 4004 in 1944, 596 in 1945 (I think we can assume most of them pre-VE day, production would be scaled back after), 48 in 1946.

It is a mistake.
In 1944 have constructed less than 3424 Yak-3.
Production in 1944:
2718 Yak-1 and Yak-3 (a factory № 292);
706 Lagg-3 and Yak-3 (a factory № 31);

Production in 1945:
1559 Yak-3 with gun SHVAK and 2 machine guns BS (a factory № 292);
359 Yak-3 with three guns B-20 (a factory № 292);
462 Yak-3 with gun SHVAK and 2 machine guns BS (a factory № 31);

All planes with engine VK-105PF2.


Data from Ivan Rodionov's chronology (in Russian).

http://www2.warwick.ac.uk/fac/soc/ec.../ver6/1945.doc

http://www2.warwick.ac.uk/fac/soc/ec.../ver6/1946.doc

[claidemore]

Thanks for the correction on the Yak 3 production numbers SDA0013.

I suspect the number I got of 4004 is for Yak 3 with 20mm and 2x12.7 production, so called "1944" model some of which were made in 1945.

[bada]

Hey Sda0013

do you have the monthly production numbers of the yak3?
or maybe, even the squadrons attributions dates and rates?

[SDA0013]

Originally Posted by bada

Hey Sda0013

do you have the monthly production numbers of the yak3?
or maybe, even the squadrons attributions dates and rates?

No, I've only reports on annual aircrafts manufacture by various factories.

[Vincenzo]

Originally Posted by SDA0013

No, I've only reports on annual aircrafts manufacture by various factories.

various is all factories or not? so this is not the annual production maybe high of that indicated

[Mitya]

Originally Posted by claidemore

Just did a brief comparison of speeds of La7 and Spitfire XIV.
Sea level, La7 is 370 mph, XIV is 360, 10 mph advantage for La7.
3000 meters (10,000 ft), La7 is 396 mph, XIV is 405 mph, Spitfire is 9 mph faster already. At 20,000 ft the La7 is doing 418 mph, the Spitfire 424 mph, not much difference there. Above that the La7 gets slower the Spit gets faster.

Up to 3000m the La7 and 109K4 (1.8ata) seem to be nearly identical in speed, above that the K4 pulls ahead.

The Tempest on the other hand, was 376 mph @ sealevel, 409 @ 10,000 ft and 431 at 20,000 ft (early variants with 9 lbs boost, 11 lb boost Tempest was 398mph @ sealevel). It's faster than either the La7 or Spit below 20,000 ft and loses to the Spit above that.


Double post, but what the heck, been several hours since the last one! lol

La-7 (s/n 452132-76):
0-616 km/h; 24,2 m/s
1000-639 km/h; 24,2 m/s
2000-661; 20
2200-666; -
3000-657; 18,6
4000-645; 15,0
5000-651; 15,0
6000-672; 12,7

Spit-14 (Griffon-65 18lb 8500 lb {spitfireperfomance.org})
0-579 km/h
1000-602
2000-624
3000-647
4000-671
5000-668
6000-668
7000 m-684 km/h
Climb
0-23,89 m/s
1219 m - 23,5
2438-23,36
3658-20,8
4877-19,0
6096-18,8
7315-16,77

Spit-14 (21lb)
0-595km/h; 25,92 m/s
1219 - 627; 24,9
2438- 656; 24,38
3658- 670; 20,83
4877- 668; 20,75
6096- 695; 20,32
7315- 722; 16,77

Only you overlook, that max characteristics are removed under certain conditions: precisely to maintain height, revolutions, etc. Above I resulted figure of characteristics La-7 and СпитфайраSpit (we shall pay attention, that at Spit there are 5 minutes a forcing, and at La-7 - 10), resulted opinion of pilots which flied both on La-7, and on Spit. Once again I shall tell. It is impossible to compare machines which intended for different tasks! Spit it is a fighter - interceptor, and La-7 is a front fighter. Sleeps could not flying in those conditions in which it was necessary to operate Yak and La. Sleeps could not fly on any grades of gasoline. The good plane sleeps. I do not argue. But. Why Johnson (I read his memoirs. It to translators questions then) marked, that at Spit there are 2 pluss: a bend and a wide ascending spiral. All pluss and minuses Spit consist in a wing. How many it has been made within war Spit and compare it to quantity made Yak, for example. Adaptability to manufacture. You look at the maximal figures. And if in another way to have a look? Whether were quickly dispersed, as they conducted on the big speeds and other, other, other... We Compare a beater Spit, FW, Me, Yak and La? Them разгонные characteristics. What we here shall see? About Tempest. Yes. He шустро drove. Only you have overlooked to specify a resource of the motor at him. And the resource at him was, if I shall be mistaken will correct, 25 hours. I.e. the machine has made a pair of starts and it is time to change the motor... But figures very beautiful. Too most was and with Yak-9y. He flied for 700 km/h, but it at 3200 revolutions ВК-107. A resource - 25 of hours. Therefore in parts have entered restriction on revolutions - 2700 max, speed has fallen up to 672 km/h. The pilot could give out and 3200, but only after such flight it is necessary to change the motor... It as with P-39 in the USSR. At you they developed the put 100...150 hours, and at us 30. But here to you to choose or you Me and FW you force down, or a resource you develop. La-5 (not Ла-7!) With M-71 has given out 672 km/h. But it have simply taken and have put on him this motor. After recommendations ЦАГИ and he could give out improvements of aerodynamics and 720 km/h. Only M-71 had a resource of 25 hours which did not suit the Soviet Air Forces. Sabre on Темпесте him sufficed yours for some reason... And for us 25 hours appeared not allowable size. So...

2 Soren: La-5FN have automatic Except for doors engine. (on the Yak-3, Yak-9M - automat)

Originally Posted by Kurfürst

Hi Mitya,
Do you have information on La 7 and Yak 3 montly production, how many was issued to frontline fighter regiments etc ?
Thanks in advance,
KF

Yes. For example, Yak-3 is put on the army - 1340. Lost- 90. La-7 - 1044; lost-62. This is 1944.
If you want more in detail on shelfs it is possible to make.