Recent content by blau

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    Type XXI U-Boat U-2540

    Hi, I know this post is from 2009., but I couldn't resist. You know, if visiting this boat you would be in a very prominent group, with one US president doing it, actually two times.. Here is link 1946 Truman - Deutsches U-Boot-Museum It could find a lot about it on Internet,...
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    Spitfire Combat Radius (range) evolution, limitations?

    A bit late in a thread, sorry. Actually, it's not an answer, I do share your feelings about lack of data. It seems that the question of range or fuel consumption was not considered as very important. For example, on a premium site about Spitfire (WWII Aircraft Performance), there is a big...
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    The Battle of the Radar Nets over Western Europe: 1944-1945

    Hi It's GYGES Publishing Company The best site on German defenses, a comprehensive work of Col. Michaël SES Svejgaard, with all questions answered. Ok, some mysteries remained
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    Any good data on life of the Jumo 004?

    Around 40 hours - looking in context, not that bad at all - as it could look at the first sight ! According wikipedia, on J47 , General Electric J47 - Wikipedia "Overhaul life for the J47 ranged from 15 hours (in 1948) to a theoretical 1,200 hours (625 achievable in practice) in 1956. For...
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    Merlin vs. DB601

    I can say for DB60x series only - without comparison to Merlin. A higher compression at DB601 was (is) possible due to fuel injection... There is no fuel injection as a factor in basic power equation for internal combustion engine per cycle (W=Pme x Vd). By the rule, if we have two...
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    Merlin vs. DB601

    But Greg, according Wikipedia - Mean effective pressure - Wikipedia: W=Pme x Vd; work or power directly depends on displacement (Vd), power is product of Pme (MEP) and Vd (displacement) so if you talk power and want "apple to apples comparison" then displacement should be included, isn't...
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