Tony Williams is the author of
Flying Guns: World War II
Development of Aircraft Guns, Ammunition and Installations 1933-1945
by Emmanuel Gustin and Anthony G Williams
and
Rapid Fire: The development of automatic cannon, heavy machine guns and their ammunition for armies, navies and air forces
by Anthony G Williams
Heres his website
http://www.quarry.nildram.co.uk/Heres his forum
http://forums.delphiforums.com/autogun/messages/Emmanuel Gustin's website is here
http://users.skynet.be/Emmanuel.Gustin/fgun/fgun-in.htmlHeres the part of site dealing with ww2 fighters
http://users.skynet.be/Emmanuel.Gustin/fgun/fgun-fi.htmlBtw you asked for sources. I told you them in my above answers.
If Tony and Emmanual arent good enough let me know I'll provide more.
Who said the NS 37 didnt have AP rounds? I quoted Mr. Williams as stating that the 9T normally carried HE rounds. 40mm penetration at 400m at 30 degrees is a small window to aim shots. Add that with the recoil it would be all but impossible to get hits. Are you saying the 9t busted tanks with HE?
How about a link to site stating the ammo load out of the 9t included AP. How about a link to site that has a pilot anecdote or mission report that has the 9t attacking armor columns?
I used an online translator to read those 3 links you provided. Although online translators are sloppy and inadequate they far better then my Cyrillic.
From this site
http://airsana.narod.ru/48/yak9T.htmAt the buttom
В заключении по войсковым испытаниям отмечалось, что:
1) самолет Як-9Т является нужным для ВВС КА истребителем;
2) при формировании частей истребительной авиации полки целесообразно делать смешанными, включающими в свой состав 30...50% самолетов "Як" с обычным вооружением и 70...50% самолетов с пушкой 37 мм;
3) самолетами Як-9Т целесообразно вооружать части с летным составом, хорошо владеющим воздушной стрельбой. Летчик, летающий на Як-9Т, должен быть своего рода воздушным снайпером и уметь поражать врага наверняка - с первого выстрела.
Создание в разгар войны Як-9Т с мощной скорострельной пушкой калибра 37 мм и его быстрое освоение в производстве и в эксплуатации сыграло большую роль в завоевании нашей авиацией превосходства в воздухе.
In the conclusion on army tests it was marked, that:
1) plane Jak-9T is the fighter necessary for Air Forces КА;
2) at formation of parts истребительной it is expedient to aircraft of a shelf to do(make) the mixed, 30. 50 % of planes " Як " including in the structure with conventional armaments and 70. 50 % of planes with a gun of 37 mm;
3) it is expedient to arm with planes Jak-9T parts with летным the structure well owning air shooting. The pilot flying on Як-9Т, should be some kind of the air sniper and be able to amaze the enemy for certain - from the first shot.
Creation with powerful скорострельной a gun of calibre of 37 mm and his(its) fast development in manufacture and in operation has played heat of war Як-9Т the big role in a gain our aircraft of the air superiority.
Correct me if I am wrong but it seems that the conclusion is the 9t played a good role along with the yak 9 (mentioning a mix of the 2) in gaining air superiority. It mentions the yak 9t pilot should be a good shot and could surprise the enemy with its cannon.
The whole article deals with a2a fighting with a brief mention of AP rounds having the ability to knock out tanks at 500m at 45 degrees.
This site
http://www.1c.ru/games/IL2/air/yak9t.htmcontains the same as the english FB site and offers no more then general info.
In the last site
http://strelok.kiev.ua/Usylyvaia_mosch/Yak_9T___tankovyi_ystrebytel.htmlIt discusses the possibility of the NS 37 ap rounds knocking out tanks but it doesnt offer more then
А.Б.Широкорадом в очерке "История авиационного вооружения", в некоторых боевых операциях потери танков противника от огня авиации доходили до 10-15% общего числа потерь от всех видов оружия.
A.B.Shirokoradom in a sketch " the History of aviation arms ", in some fighting operations of loss of tanks of the opponent from fire of aircraft reached Up to 10-15 % The general(common) number of losses from all kinds of the weapon.
Which is quite unbelievable that 15% of tanks could be lost from strafing. I can post links to battle field assesments on the west front done by the brits that show no where near 15%. But thats here nor there. It doesnt mention what percentage of these losses were attributed to the yak 9t.
I never said the NS 37 didnt have ap or that ap couldnt knock out tanks. I said that the yak 9t wasnt a tank buster. Maybe Boroda will stumble into this thread and settle it.