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#1
04-03-2013, 06:32 PM
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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:
yak-1 it's serial yak-1 m-105p of 292 plant with sn 0511 - Quote:
lagg-3 it's, apparently, lagg-3 m-105p (pa?) with sn 3121715 (noted what "water cooler full closed") - Quote:
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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#2
04-09-2013, 10:13 PM
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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...
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#3
04-13-2013, 07:13 PM
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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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#5
04-14-2013, 03:12 PM
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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.
__________________
Find my missions and much more at Mission4Today.com
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#6
04-15-2013, 05:49 PM
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Quote:
Quote:
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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#7
04-15-2013, 07:57 PM
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oh, exactly, confirmed here... i saw only now, seriously...
well... hope, 1CGS will post later materials about lagg-3 s29, for example, although looks like that it's again test of stability and controllability of aircraft, so, for understanding really need to know language, carefully reading ie it's mainly "developer's stuff" for tuning of FM... nevertheless, it's interesting for many peoples and sometimes, very...
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