SlowMotion Posted September 26, 2009 Share Posted September 26, 2009 Here are some interesting east front photographs I spotted at another forum. At least some are from Kharkov. http://www.militaryphotos.net/forums/showthread.php?t=158341 0 Quote Link to comment Share on other sites More sharing options...
Redwolf Posted September 26, 2009 Share Posted September 26, 2009 Man, most of the officers in there look like complete morons. Must be fun serving them... 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted September 26, 2009 Share Posted September 26, 2009 Interesting. Very good photos. Anybody know what the deal is with the fins on the spinners of the Ju? I've never seen that before. Michael 0 Quote Link to comment Share on other sites More sharing options...
gunnergoz Posted September 26, 2009 Share Posted September 26, 2009 Interesting. Very good photos. Anybody know what the deal is with the fins on the spinners of the Ju? I've never seen that before. Michael Good question - I've never seen it either, Michael. You know, the only thing I can think of is a generator power spinner...but why coaxial with the main prop? Seems unduly complicated to me. 0 Quote Link to comment Share on other sites More sharing options...
SlowMotion Posted September 26, 2009 Author Share Posted September 26, 2009 Same question in this thread: http://forums.ubi.com/eve/forums/a/tpc/f/23110283/m/3221070297 0 Quote Link to comment Share on other sites More sharing options...
JonS Posted September 26, 2009 Share Posted September 26, 2009 Seems unduly complicated to me. I take it you're not familiar with German military and aeronautical engineering in the 1940's, then? 0 Quote Link to comment Share on other sites More sharing options...
dieseltaylor Posted September 26, 2009 Share Posted September 26, 2009 Richard Stankiewicz, two_av8(@)hotmail.com, 13.11.2007The vanes are part of the constant speed feature of the propeller. The fins are attached to the spinner and is free to spin,the spinner is attached to a small oil pump. The oil pressure adjusts propeller pitch, if the load on the propeller increases ie during climpb, the pressure falls and the pitch is decreased (fine pitch). Hope this helps an alternative answer : ) From another message board, "the little spinner in the picture above is mounted on a free-turning bearing and is of a known, fixed pitch. When the aircraft is stopped, the little prop on the front is not spinning, and the propeller is in fine pitch. As the airspeed rises, the little prop starts turning and the pitch begins to get more coarse by means of a cam. There is a design speed for the prop and, as long as you don't exceed design speed and power rating, the unit above results in a more-or-less constant speed propeller without the complexity of a pitch control knob in the cockpit." Kind of a dynamic pitch control mechanism. I am glad to have cleared that up : ) 0 Quote Link to comment Share on other sites More sharing options...
Affentitten Posted September 27, 2009 Share Posted September 27, 2009 Anybody know what the deal is with the fins on the spinners of the Ju? Michael That would be Fw 0 Quote Link to comment Share on other sites More sharing options...
gunnergoz Posted September 27, 2009 Share Posted September 27, 2009 OK, that explains it. I was at one time a trained airframe & powerplant mechanic and learned how the US P&W/Bendix prop speed mechanisms work instead - they are internal to the big dome you see on the center of US props of the era and are dependent upon centrifugal force working upon two counterweights. This German type is a new wrinkle for me and apparently the design did not survive the war or if it did, it was not in common use when I went to aviation tech school. 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted September 27, 2009 Share Posted September 27, 2009 That would be Fw Hmm, you're right. DT, thanks for the cite. That's actually a pretty elegant solution to the problem...at least conceptually. I wonder how well it worked in practice. I suppose it may have worked well enough as it wasn't a very high performance plane anyway. Michael 0 Quote Link to comment Share on other sites More sharing options...
Affentitten Posted September 27, 2009 Share Posted September 27, 2009 the design did not survive the war or if it did, it was not in common use when I went to aviation tech school. It did survive the war. The Argus AS-411 engine was manufactured during and after the war by Renault (though under a different name.) The French used it for a couple of light transport/trainer airframes. The Fw-189 is one of my favourites. Been fascinated by it ever since seeing it in the Airfix catalogue as a kid. I always wondered what it would be like sitting a few hundred feet above the Red Army is a huge glass box! 0 Quote Link to comment Share on other sites More sharing options...
Stalins Organ Posted September 27, 2009 Share Posted September 27, 2009 Amazing how people are amazed by the photo quality from WW2 - do ppl think they are still taking shots with chemical flashes by uncapping the lens then??!! :/ As an aside, the rear gun of the Fw has an interesting mount - it is offset in the glassed tail-cone, so to get different angles of fire the whole tail-cone rotates - eg in this photo from wiki you can see it in a different position 0 Quote Link to comment Share on other sites More sharing options...
gunnergoz Posted September 27, 2009 Share Posted September 27, 2009 It did survive the war. The Argus AS-411 engine was manufactured during and after the war by Renault (though under a different name.) The French used it for a couple of light transport/trainer airframes. The Fw-189 is one of my favourites. Been fascinated by it ever since seeing it in the Airfix catalogue as a kid. I always wondered what it would be like sitting a few hundred feet above the Red Army is a huge glass box! We had a lot of sample engines to play with but no foreign ones, unfortunately. This was in the US of course. In the 1980's they were still teaching us about wood and fabric repairs, more so that fiberglass and composites. 0 Quote Link to comment Share on other sites More sharing options...
JonS Posted September 27, 2009 Share Posted September 27, 2009 Amazing how people are amazed by the photo quality from WW2 ... Yep. There are some odd comments in that linked thread. This one is my, er, favourite: That kind of architecture in that day and age should say something against the untermenschen propaganda. What a tragedy. Some people just can't help themselves. 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted September 27, 2009 Share Posted September 27, 2009 Amazing how people are amazed by the photo quality from WW2 - do ppl think they are still taking shots with chemical flashes by uncapping the lens then??!! :/ Cameras, especially German 35mm cameras, were good to excellent (if you were willing to pay for the quality), but good film was a trifle hard to come by in many countries. Film chemistry, particularly color film, has made great strides in the last 40 years. And the ability to produce inexpensive aspherical lenses has meant the pictures it is possible to get with small, lightweight cameras has vastly improved. Michael 0 Quote Link to comment Share on other sites More sharing options...
gunnergoz Posted September 27, 2009 Share Posted September 27, 2009 What amazes me is when runs of photos like these are found intact or relatively so...clearly, someone's photo album or possibly a roll of negatives has been located. After the chaos of war and the postwar diaspora of people and rebuilding, the fact that these sorts of collections are still around to be found is what I find a wonderful surprise. 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted September 27, 2009 Share Posted September 27, 2009 Hey, every couple of decades or so someone comes across a stash of Confederate money. And maybe two or three times a century a diary from the Revolutionary War. People hang on to anything that might have meaning for them, even where they forget where they put it. It's then left up to chance for someone else to stumble across these valuables and bring them to the light of day. Michael 0 Quote Link to comment Share on other sites More sharing options...
Stalins Organ Posted September 28, 2009 Share Posted September 28, 2009 An essay written by Paul McCartney has just surfaced from 1953 - he was 10, and got a prize for it from the Mayor of Liverpool 0 Quote Link to comment Share on other sites More sharing options...
Sergei Posted September 28, 2009 Share Posted September 28, 2009 What a marvelous piece of sh... h'story. :P 0 Quote Link to comment Share on other sites More sharing options...
Bigduke6 Posted September 28, 2009 Share Posted September 28, 2009 Slowmotion. Nice find on the pix, thanks. 0 Quote Link to comment Share on other sites More sharing options...
Affentitten Posted September 28, 2009 Share Posted September 28, 2009 Hey, every couple of decades or so someone comes across a stash of Confederate money. And maybe two or three times a century a diary from the Revolutionary War. People hang on to anything that might have meaning for them, even where they forget where they put it. It's then left up to chance for someone else to stumble across these valuables and bring them to the light of day. Michael And in the case of German stuff, it was more often than usual hidden away after the war out of shame/humiliation/deliberately wanting to forget. The subsequent generations didn't really want to know what grandad did in the war. Even the tendency of Germans to stay put in one residence for their whole lives contributes to this stuff turning up in the attaic decades later. 0 Quote Link to comment Share on other sites More sharing options...
Stalins Organ Posted September 28, 2009 Share Posted September 28, 2009 Didn't we get rid of most of their attics??!! 0 Quote Link to comment Share on other sites More sharing options...
tooz Posted September 28, 2009 Share Posted September 28, 2009 Thanks for the link! Man, now I have MORE excuses for not working around the house. "Sorry Honey, but you have just got to see these pictures of German Panzers" (ducks as things fly past his head). Cheers! 0 Quote Link to comment Share on other sites More sharing options...
gunnergoz Posted September 29, 2009 Share Posted September 29, 2009 Years ago a friend of mine was going through the garage of a man who'd passed away and his wife was selling off everything in the garage. He looked up and saw a tubular gray affair suspended across two attic joists. He recognized it for what it was and asked the lady if she'd take $10 for that rusty piece of pipe. She said sure. He walked out with a WW2 German hand-held rangefinder in nice condition. I saw it myself and had no reason to disbelieve how he got a hold of it. But I'm not sure I respected his method; although the seller was responsible for knowing her property's value, I can't help but feel he took advantage of a widow's grief. I stopped hanging out with him after that. 0 Quote Link to comment Share on other sites More sharing options...
Dietrich Posted October 1, 2009 Share Posted October 1, 2009 Years ago a friend of mine was going through the garage of a man who'd passed away and his wife was selling off everything in the garage. He looked up and saw a tubular gray affair suspended across two attic joists. He recognized it for what it was and asked the lady if she'd take $10 for that rusty piece of pipe. She said sure. He walked out with a WW2 German hand-held rangefinder in nice condition. I saw it myself and had no reason to disbelieve how he got a hold of it. But I'm not sure I respected his method; although the seller was responsible for knowing her property's value, I can't help but feel he took advantage of a widow's grief. I stopped hanging out with him after that. *shrug* He saved her from selling it for only $5 dollars to some guy who would then just dust it off and auction it on eBay for $500+. 0 Quote Link to comment Share on other sites More sharing options...
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