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  #31  
Old 03-28-2013, 09:31 PM
1984 1984 is offline
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in offline long time i trying to write what found about il-2s, but, oh, this is so hard for one and ordinary guy like me, so, at this time, only about il-2 with 2 ns-37...

performance from compare 4.11 - weight 5732.96 kg (in tests, weight with full load, ie apparently 100 kg of bombs, around 6160 kg), 399 kph at sl (in first, apparently, tests speed around 387-391, but in game it's can be speed of late series) etc, just now personally i don't have full data...

weapons - prototype had and was tested with 60 shells for each ns-37, and 200 kg of normal bomb load, serial planes had 50 shells for each ns-37 and 100 kg (normal) or 200 kg (overload) of bomb load, and - apparently - never not had any rockets, and although info about this different, personally i not saw any photos with rockets and think at this moment what planes really not had rockets...

ie 2 cannons under wings + more weight = only bombs...

so, apparently, loads for il-2 with ns-37 can look like 100 shells in total as default - personally my opinion, repeat, need and different ammobelts - 120 as prototype (for fun), plus something like 2xfab-50, 4xfab-50, 2xfab-100, some light bombs like ao-xx and ptabs=200 kg max...

(maybe, DT can do for fun experimental il-2 with ns-45, as new load for il-2 with ns-37 or new plane, if i'm not mistaken, it's easy because plane just had new cannons (although, of course, in ideal need to do and all problems of ns-37/45)...

and il-2 with ns-37 never not had wings with "стрелка" (or "крыло стрельчатой конструкции") - постановление ГКО № 4554сс, 13.11.1943, "Об установке на самолетах Ил-2, выпускаемых заводом № 30 НКАП, пушек Волкова-Ярцева калибра 23 мм вместо пушек ОКБ-16 калибра 37 мм" - ie in nov'43 resolution about production of il-2 with vya-23 instead ns-37 because cannon was not really effective by several technical and other reasons...

another quote just about стрелка - "Как следует из документов, завод № 18 вышел на плановый уровень производства Ил-2 с металлическим крылом "со стрелкой" лишь к июню, а 1-й и 30-й заводы - к сентябрю 1944 г. Всего к концу года в ВВС поступило 7377 Ил-2 "крыло со стрелкой". При этом авиазаводы № 1 и № 30 выпускали самолеты и с металлическим, и с деревянным крылом. Все самолеты имели "стандартное" для 1944 г. наступательное вооружение: пушки ВЯ, пулеметы ШКАС, "эрэ-сы" и бомбы. Пушки НС-37 на них никогда не устанавливались."

etc, although need more information, apparently, could be exeptions or something like this...

well, and in very interesting "справочник по самолету ил-2, 1944", which recently was posted here, was confirmed information about 150 rounds for VUB-3 with UBT of il-2 two-seater (in game all il-2s have 200)...
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  #32  
Old 03-29-2013, 09:36 PM
1984 1984 is offline
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in addition to wish with il-2 with ns-45, if..., was tested plane with 100 shells in total...


i wanted to write about this later, in context of yak-7b with m-105pa, laggs'41 etc, but need too much time for all this things, so, i will start it now...

well, here we have interesting project, with several documents about VVS which can be very useful and one of most interesting docs at this moment, i think, it's "альбом по дальности и продолжительности полета самолетов" (dated 1943, but, in fact, last plane was tested in end'45)...

only some findings - page 11, yak-9 of 155 plant with 4 fuel tanks (673 ltr of fuel) and weight 3035 kg, was tested in july'42... looks like prototype of yak-9/yak-9d ie yak-7d... apparently, it's could be another confirmation of normal weight of yak-9d...

page 12 - serial lagg-3 of 153 plant with sn 871 ie apparently 71 plane of 8 serie, 5 fuel tanks (452 ltr) and 3150 kg, was tested in august'42... apparently, it's one of last planes of 153 plant, similar with 7-xx series of 21 plant... and just quote about other lagg-3 of 153 -
Quote:
22 августа 1942 в 11:07 произошла авария ЛаГГ-3 N 0715328 под управлением л П.М.Попельнушенко из-за ошибке в приятии решения о вынужденной посадке.
page 13 - serial la-5 with sn 37210444, 5 fuel tanks (530 ltr) and 3360 kg, was tested in oct'42 (full performance of this plane here, and later i want post about this early series, especially, because too much talk about la-5s for BOS)...

page 22 - serial il-4... well, i'm know about bombers too little, but here in loads i see interesting things like 6 load - 1xfab-1000 + 2xfab-500 + 6xfab-100 = 2600 kg of bombs with limited fuel... Сита, это то о чем ты читал и хотел найти подтверждение?

page 26 - serial il-2 with max. weight 6360 kg, was tested in feb'43... well, what very interesting here, it's 2 load - 6xfab-100 + 4 rs-82, and 3 load - 2xfab-250 + 4 rs-82... apparently, if it's really true, loads could be included in game...

page 31 - serial la-5fn with sn 39210367, 3 fuel tanks (460 l) and 3300 kg, was tested in july'43 and what interesting here it's, apparently, confirmation of normal weight of la-5fn=3290-3300 kg in compare with 3320-3340 of some planes (ie, in this case, in game really NOT la-5fn type 41 or just 1944)... by the way, other confirmation of 3290-3300 kg (quote from "Отчет об испытаниях самолета "Лавочкин-5" с мотором М-71 N 39210204") -
Quote:
Ла-5 с М-82 № 39210405
Площадь крыла м. - 17,5
Размах крыла в м. - 9,8
Удлинение - 5,48
Площадь горизонт. Оперения в м - 3,25
Площадь рулей высоты м кв - 1,37
Площадь осевой компенсации РВ м кв - 0,116
Площадь вертикального оперения м - 1,34
Площадь руля направления - 0,92
Полная длина самолета - 8,67
Диаметр капота м - 1,285
Вес самолета - 3290
Нагрузка на кв метр - 188
Нагрузка на л.с. - 2,24
and interesting quote with control test of serial la-5fn -
Quote:
Самолет Ла-5 М-82 ФН N 39210375 июньского выпуска завода N 21.
Получены данные:
Максимальная скорость у земли при Ра=1200 мм рт. ст. и
п=2500 об/мин. - 597 км/час
Максимальная скорость на 2-й гр. высотности (Н=6100 м) при
Ра=1000 мм рт. ст. и п=2400 об/мин. - 641 км/час
here can be error, but 641 kph at 6000 (prototype had 648 kph) shows what no or it's small error, plus even with 1180 mm rk speed can be around 590 kph, and in fact nothing strange what la-5fn have this speed...

page 34 - just another lagg-3 of 31 plant, with sn 6672 (ie it's really famous 66 serie), with 3 fuel tanks (400 l) and 3023 kg, was tested in dec'43...

page 36 - serial il-2 with ns-37 and max. weight 6150 kg, was tested in nov'43... i think, it's good confirmation of my last post (6160kg=100 kg of bombs and no any rockets)...

page 38 - serial yak-9d with sn 0715306, 4 ft (645 l) and 3120 kg, was tested in feb'44... well, apparently it's one of first serial planes for tests, and it's why weight=3120...

page 56 - serial il-10, was tested in may'45... i saw here debates about 2xfab-250 for this plane, well, 4 load - 2xfab-250 + 100 kg of other bombs...


etc etc etc including many bombers, several lend-lease and captured planes...
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  #33  
Old 03-30-2013, 11:34 AM
gaunt1 gaunt1 is offline
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Quote:
Originally Posted by 1984 View Post
and interesting quote with control test of serial la-5fn -

here can be error, but 641 kph at 6000 (prototype had 648 kph) shows what no or it's small error, plus even with 1180 mm rk speed can be around 590 kph, and in fact nothing strange what la-5fn have this speed...
Its definitely a rather big error, because its the performance of an early La-7! According to NII VVS tests, the max speed of the La-5FN varies between 610-626. Anyway, its quite unlikely that the speed of plane "39 210 375" is so much better than later ones, like the "39 210 495" or "39 211 257"

Regarding the weight, I agree, 3320-3340 kg is too much, but in my opinion, it should be between 3300-3320, like all examples in NII VVS tests.
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  #34  
Old 03-30-2013, 08:43 PM
1984 1984 is offline
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another interesting document - альбом "основные работы новосибирского филиала института летных исследований, выполненные в I полугодии 1942 года"...

page 2 - "improvement of flight data of yak-7" (1942)... in fact it's illustration, for example, of text from Stepanec or other documents which i reading, about aerodynamic changes'42 (shows etalon performance of yak-7(b) m-105pa, in compare with plane before changes, ie around 470 vs. 495 kph at sl) plus noted what gives forced m-105 with 1040 mm (plane showed 520 kph, although, pf in all sources have 1050, so, could be LITTLE more)...

page 3 - "improvement of flight data of lagg-3" (1941)... well, looks like experimental lagg-3 with sn 31211062 and 490 kph at sl vs. lagg-3 with 3121715 and 457 from this table (later about this)...

other works, mainly, for interest and have no practical meaning...
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  #35  
Old 04-03-2013, 06:32 PM
1984 1984 is offline
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last or one of last useful documents, "Сравнительная таблица летно-тактических данных серийных самолетов «Томагаук», МиГ-3, Як-1 и ЛаГГ-3.", with several performances of soviet-LL planes'41-42...

some notes - mig-3 looks like serial mig-3 am-35a with serial number 3943, slats and reduction 0,732, further original quote with more full performance (in other quotes about 3943 i saw 300 rounds for ubs) -
Quote:
Полетный вес: нормальный/перегрузочный - 3299/3499
Скорость: у земли - 466
Максимальная с нормальным запасом горючего/на высоте - 615,5/7800
Посадочная скорость - 140
Время виража/на высоте - 22/1000
Время подъема на высоту - 12,4/8000
Практический потолок - 11500
Техническая дальность на 0,9 Vmax/на высоте:
С нормальным запасом горючего - 628/7250
Длина разбега/время разбега - 398/16,5
Длина пробега/время пробега - 455/20,5
Вооружение: Стрелково-артиллерийское - 1 БС 2 ШКАС
Бомбовое: нормальное/перегрузочное - 0/200
well, in game migs-3 with really lot of errors...

yak-1 it's serial yak-1 m-105p of 292 plant with sn 0511 -
Quote:
Полетный вес нормальный/перегрузочный - 2847/-
Скорость: Максимальная у земли - 490
Максимальная с нормальным запасом горючего/на высоте - 586,5/5100
Посадочная скорость - 137
Время виража/на высоте - 20-21/1000
Время подъема на высоту - 5,7/5000
Практический потолок - 10500
Техническая дальность на 0,9 Vmax/на высоте:
С нормальным запасом горючего - 700/5000
Длина разбега/время разбега - 340
Длина пробега/время пробега - 560/34
i know about yaks-1 not so much, only can guess what it's, apparently, first serial planes with fully retractable tail wheel, in game now, apparently, plane of late series with m-105pa...

lagg-3 it's, apparently, lagg-3 m-105p (pa?) with sn 3121715 (noted what "water cooler full closed") -
Quote:
скорость у земли с закрытым фонарем - 457 (535/5000)
дальность (0.9 от макс. скорости/4700 м) - 705
вооружение - 1 швак (150) 1 убс (200) 2 шкас (1300)
полетный вес - 3280
запас горючего - 340
время набора высоты 5000 - 8.6
вираж на высоте 1000 м - 21
(later about performance of this lagg-3 and other early laggs, it's complex question,and don't need to make here hasty conclusions)...

about p-40 i know not so much, be better if someone else compare this performance with full us/uk datas - moreover, in 4.12 new FMs for these early planes too, right? - but what i see - in 4.11 p-40c has 20.01 sec at 1000 m, in report 18, but speed more conservative...
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  #36  
Old 04-09-2013, 10:13 PM
1984 1984 is offline
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i think that now finally understood, how much speed lose la-7 with full open oil cooler and side doors (apparently, in all tests of all la-5/7/9/11 blinds after prop were open) - because found here, in table 7, serious error...

la-7 with full closed oil cooler=already 40 mm and full closed side doors=already 73 mm, it's correctly, how and all info about oil cooler, but in original documents just NO positions of doors, bad quality of scan (attached this page 15), only speeds - 488...487...480.5...4x7.5 (looks like 467.5) - ie apparently with full open side doors la-7 lose 20.5 kph and not how i'm assumed previously, 9 in total...

in "techical description of la-7", page 154 - "Максимальному открытию створок соответствует их ход на 80 мм от крайнего закрытого положения. В крайнем закрытом положении створки не выступают за пределы обводов наружного капота. Для выхода воздуха и выхлопных газов боковая створка поставлена с некоторым повышением над задней боковой крышкой капота таким образом, что образуется постоянная щель." - ie 73 mm (it's constant crack and doors do not create resistance, attached photo) + doors can be opened on 80 mm=153, site gives max. 136 and min. 73, don't know why 136...

on picture can also see, if i'm not mistaken, and new sides of hood for planes after start of production (quote from tests of 45210139) - "Самолет, предъявленный на испытания, отличался от самолета эталона 1944 года, проходившего государственные испытания в ГК НИИ, следующими изменениями, влияющими на аэродинамику: ...8. Укорочены боковины капота, прикрывающие крайние выхлопные патрубки." - look at 2 last exhaust pipes, top and bottom, and for comparision attached pic with la-5 etalon 1944 (but changes can be inside and this is only my theory)...

in total, personally i think what 73mm as default it's almost similar with settings "по потоку" for old side doors, now for better cooling (with more easy managment of engine? looks like fw 190a) + because new doors and oil cooler really were much better than old, loss of speed was not so much (20.5+8.5=29 in compare with 45-50 for la-5fn)...

confirmation about oil cooler from G. Serov - "Так было показано, что расположение маслорадиатора под фюзеляжем (за 5-м шпангоутом) в специально спрофилированном туннеле снижает его лобовое сопротивление в 2 раза и обеспечивает расход воздуха через радиатор на 25-30% больший, чем при серийном варианте." - resistance of oil cooler became lower in two times and through cooler passes more air on 25-30 percent...

well, sorry for MY mistake...

...and that finally understood why in tables from Stepanets, and thus in many other sources, yak-9k and yak-9m have worst performance than early planes, well, just looks like that it's incredible mix of all planes and 518 kph at sl/6.5 min etc it's numbers from performance of yak-9t with 4 fuel tanks (not serial yak-9td or prototype of yak-9k) with around 32xx-3270 kg...

for example, about prototype of yak-9k with 4 fuel tanks - "Из-за увеличения полетной массы максимальная скорость Як-9К по сравнению с Як-9Т уменьшилась у земли - на 2...15 км/ч и на высоте 5000м - на 40...27 км/ч; время набора высоты 5000 м увеличилось до 6,5 мин (на 1,0 мин);" - ie because extra weight, in compare with yak-9t this plane was slower on 2-15 kph at sl and had +1 min to time of climb to 5000 m...

well, 533-15=518 and 5.5+1=6.5...

but 533 (average speed of t/d in 43) - 15 kph it's strange, looks like that it's various quality, error, calculation etc... 533 - around 5-7 (more weight and another aerodynamics)=524-528 ie little less than average speed of yak-9d/t/7b in 43...

about yak-9m PVO (in table with weight 3116 kg) - "Полетная масса Як-9М ПВО снизилась за счет уменьшения запаса горючего с 480 до 420 кг, масла с 45 до 30 кг, снятия брони - 16 кг и осуществления других более мелких мероприятий." - 3116 + 60 kg of fuel + 15 kg of oil + 16 kg of armor etc = at least 3207 kg of yak-9m as td version - 150 kg (in fact, 147.2) of difference between yak-9 with 2 fuel tanks and yak-9t = 3060 kg, almost normal weight of yak-9d/m with 4 fuel tanks...

etc, with yaks-3 similar situation, 570 kph at sl of normal plane and 21 sec at 1000 of bad plane, although, it's not news...
Attached Images
File Type: jpg side doors of 45210139.jpg (836.8 KB, 13 views)
File Type: jpg la-7 with new short sides of hood.jpg (70.4 KB, 20 views)
File Type: jpg la-5 etalon 1944.jpg (83.3 KB, 18 views)
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  #37  
Old 04-13-2013, 07:13 PM
1984 1984 is offline
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very good news for all adequate lovers of soviet planes, and especially for those who know language...

well, personally i long time not check this forum, although, meantime there recently were posted lot of FREE and very interesting soviet documents - many thanks to people who did this for us - including - 1 features of piloting of pe-2, 1943 (can be useful for tuning of FM)...

2 technical description of la-5, part 2, 1943 (looks like continuation of famous part 1, and i think, at this moment, that it's mainly for interest)...

3 armament of la-7, 1945 (looks like that i saw this before, if not mistaken, most interesting it's only confirmation about 390 shells in total, as official load, for la-7 with 3xb-20)...

4 technical description of lagg-3, part 2, 1941 (looks like just description, without most interesting parts about performance/weapon)...

5 technical description of boston III, A-20B and A-20G...

and following documents can be interesting for many peoples because it's -

6 test of c-46a...

7 ground test of captured "Р-100" ie ki-46 with HA-112 (looks like that in something could be useful for japanese planes)...

8 test of me-109 g 2 № 14513...

plus some information about u-2/po-2, tb-3/7, mig-1/3, ps-84/li-2, go-145a, r-5, ant-9, su-2, db-3f, SB, some tests of p-39q-10/hurricane IIc etc...
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  #38  
Old 04-13-2013, 08:10 PM
Sita Sita is offline
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nice source
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  #39  
Old 04-14-2013, 03:12 PM
IceFire IceFire is offline
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Keep it coming 1984. All good stuff! So few are willing to try and document the details. I imagine at some point the Russian aircraft will be given a thorough look over... and this stuff helps.
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  #40  
Old 04-15-2013, 05:49 PM
1984 1984 is offline
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Quote:
Originally Posted by Sita View Post
nice source
yes, sometimes very, and let's hope that it's really yet not all...

Quote:
Originally Posted by IceFire View Post
Keep it coming 1984. All good stuff! So few are willing to try and document the details. I imagine at some point the Russian aircraft will be given a thorough look over... and this stuff helps.
thanks, necessarily and in fact, of course, it's various work of many peoples...

and even if in my last post not so much about performance/weapon/technical details, at least, has rare photos, drawings etc with very good quality...

generally speaking, some documents which i found in last time can be researched for BOS, i thought about this before and if this - original photo from report, maybe, to some extent it's really true...

and in any case, i think that 1CGS can help or, at least, hope no will be any bans for old "il-2" like with channel map etc, although personally i don't mind than focusing on other periods or even on other countrys (for example, early laggs'41 or several new models of i-16 etc or p-39/a-20/p-51 for many players)...

by the way, at this moment, from free sources i collected many descriptions of defects, problems etc of soviet planes... of course, it's not only for soviet planes, and firstly need to think how it's can be realised - i just remembered these fuzes with defects in 4.10 or 11 as default ie without choice... maybe, not bad idea it's new option, something like "historical mode" with selected, neatly made several most common defects which can't be included in various performances of planes etc?

although, here need lot of precious time, efforts and much more researches of really knowledgeable people, moreover, just different performances with 531 +12/-9 for yak-7b 1943, for example, can be enough...
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