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Very Hot Topic (More than 25 Replies) Das Fliegende Auge...FW189 Uhu (Read 799 times)
Kerak
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Re: Das Fliegende Auge...FW189 Uhu
Reply #36 - yesterday at 6:30pm
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My conjecture is...that Mothes saw the clearing ahead and did indeed lower his landing gear...which in turn slowed his airspeed still further...bringing V7+1H into the tree tops short of the clearing...not good.  As the ac sank further into the trees...horz. tail was torn off...along with booms...a weak point (attachment) being directly behind the wing's TE.  Once that occurred...the entire wing/center fuselage section rotated into an inverted attitude...actually facing backwards...came to an abrupt halt, and settled to the forest floor...what a ride.  Rear gunner's position was entirely destroyed...as was glazed nose.  Mothes intended to make a perceived clearing...just didn't get there.  Maybe it was sop to lower the gear...for any landing save in water...just because the nose was considered a no-go...all that glazing.  Let's face it...no protection regardless of the structure in those circumstances.  Mothes was just very lucky...more than lucky, even.  Rear-gunner may have had a chance...until that wing flipped...then he became the lead...and Mothes was then in the rear.  My conjecture...thanks, Ian.  Smiley

Incidentally...discovered V7+1H, originally an A1...had been modified to an A2 (upgraded armament...twin MG81Z in the rear-gunner's position).  That ops report says it was an A3...but that isn't so...A3 was an A1 with duel controls...very few constructed.

Note the rear-gunner in that one pic...appears to be wearing some sort of body armor.  Last pic...look at that baby-faced observer-dorsal gunner!  Schoolboy...bet Mothes' observer was NOT belted in like that...and even if he was....

Thanks, Ian.

Neal
  

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pb_guy
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Re: Das Fliegende Auge...FW189 Uhu
Reply #35 - yesterday at 2:14pm
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The extended landing gear is strange. As a pilot, you wouldn't extend the gear unless you were in sight of your landing strip, especially if you were in an unpowered glide. However, if the electrics failed and you had to lower the gear with a crank, you would lower it early so that you could concentrate on the approach. I assume that he had to crank down the gear by hand. If so, then it is likely that the pilot felt that he had sufficient altitude to make his landing. If, while cranking down the gear, the pilot didn't pay close attention to his airspeed, then he might have accidently given too much up elevator and in an instant, the aircraft would have flipped over into an inverted spin which would be unrecoverable at low altitude.

Just conjecture on my part.
ian
  
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Kerak
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Re: Das Fliegende Auge...FW189 Uhu
Reply #34 - yesterday at 11:11am
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Here's more of "the story"...apparently Soviet patrol was sent out immediately to locate the crashsite of V7+1H...which they arrived at within several hours.  Consider that it was situated only a few miles outside of Louhki...that says something about the terrain.  Obviously Mothes didn't have much time to loiter in the area.  It also dictates that all serviceable ac armament would have been stripped from the wreck...sop.  Remains of two KIA crewmen would have been dealt with by the Soviets...or not, according to their sentiments.  So the wrecksite was not pristine...but difficult to get to...and might not have been much disturbed since 1943.

Oh...apparently there was an open area that Mothes was attempting to reach for an emergency landing.  Didn't make it.  Hence...LG extended...still an interesting decision...couldn't have helped to extend his glide path.

Here's Luftwaffe mission report for V7+1H 4/5/43.  Circled description in upper right says it all..."flug nicht wieder zuruck"...aircraft did not return.  Entry to right of Mothes indicates MIA (vermiBt) (as it does for other two crew members)...with a hand-written line above indicating..."perhaps not."  Hand-written note directly below this indicates his return 17/5/43...with answers to the puzzle.

Neal
  

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Kerak
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Re: Das Fliegende Auge...FW189 Uhu
Reply #33 - Sep 28th, 2022 at 8:59am
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Ok...have a basic fuselage box...now for the real effort...nose and tail cone.

Still intrigued by the idea that Mothes came down into the trees apparently with his LG extended...but then I know nothing about SOP in such matters.  Looking again at that aerial shot of V7+1H down in the forest...gear in both booms appears fully extended.  Interesting that inverted wreckage is facing what is probably one of the booms.  Mothes stated the ac flipped inverted before plunging to the forest floor.  I'm still amazed...the entire center section of ac...wings and all remained intact...a real testament to its design and construction.

Well...next is the fuselage tail section...everything aft of the wing TE.

Neal
  

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Sky9pilot
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Re: Das Fliegende Auge...FW189 Uhu
Reply #32 - Sep 27th, 2022 at 3:31pm
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I agree with Ian, won't probably add much weight.  I guess you'll have to use several knife blades to cut out all those individual pieces! Grin Cheesy Wink
  

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Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Kerak
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Re: Das Fliegende Auge...FW189 Uhu
Reply #31 - Sep 27th, 2022 at 3:01pm
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It's interesting that the Uhu was considered to be very maneuverable...not an easy aircraft to bring down in aerial combat.  That factor, combined with the fact that great visibility for its crew, made the Fw 189 difficult to "sneak up on."  Hence...it rarely flew its mission with an escort.  Of course, that central fuselage pod with all its glazing was a critical factor...Das Fliegende Auge! Smiley

A curious issue...its primary competition with RLM was the Blohm and Voss BV 141...utilizing a very similar appearing fuselage pod.  They're not identical...but very close.  I believe that used on the Fw189 was a bit wider...but otherwise....  I don't know the answer...but a bit of industrial espionage?  Whatever...it was critical to the Uhu's success.  The only weakness in the structure was that glazed nose section and the conical tail gun section...otherwise...was very strong.  My model's center wing section appeared a bit flimsy...until I began adding the central pod...now is very firm.  Interesting....  An item of no significance (what is?)...that last BV141 pic...upper wing national markings are incorrect...at least for a Luftwaffe (accepted) aircraft. 

Blohm and Voss effort was a private venture.  Luftwaffe favored the Arado Ar 198...which gets my vote for the UGLY HOF...wasn't accepted, thank the good lord.  That plan is for anyone who specializes in modeling such beasts.  Wink

Neal
  

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pb_guy
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Re: Das Fliegende Auge...FW189 Uhu
Reply #30 - Sep 27th, 2022 at 10:25am
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Looking elegant! Love dem bones (dem bones, dem bones, dem dry bones). I don't think that the ironwood will add much weight to the pod, at least not enough to make a difference.
ian
  
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Kerak
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Re: Das Fliegende Auge...FW189 Uhu
Reply #29 - Sep 27th, 2022 at 8:44am
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more...restoration project pics....

Have begun built-up fuselage pod.  Balsa material in use is indeed the best quality "ironwood," much to my pain.

Neal
  

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Re: Das Fliegende Auge...FW189 Uhu
Reply #28 - Sep 26th, 2022 at 11:55am
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Ditto what Ian said re: bamboo.  Some of the oldtimers used to use heat to bend the bamboo to shape.  I've even heard of soaking the bamboo and bending it over a soldering iron.  I have some reed that's about 1/16" diameter that could be wet formed over patterns that would work very well. Then using Cyano to build the cross structures.  Just thinking outloud!
  

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Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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pb_guy
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Re: Das Fliegende Auge...FW189 Uhu
Reply #27 - Sep 26th, 2022 at 10:37am
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I am attracted to the idea of building that structure up. The material would have to be strong to avoid breakage (and tears) - either hard balsa or bamboo.
ian
  
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Kerak
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Re: Das Fliegende Auge...FW189 Uhu
Reply #26 - Sep 26th, 2022 at 8:36am
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Got central fuselage nacelle on my mind now...thinking about it even when I wake in the middle of the night!  Shocked  Have considered a carved unit...hollowed...all of that.  What really has me thinking is a built-up unit...appeals to my "sticking those sticks together" enjoyment factor.  Wink  Of course...still have to deal with the "glazing issue."  Here are a couple of pics showing the restoration project...a good view of the very area I'm talking about....  Just construct the balsa mock-up like the real deal...right?  Roll Eyes  I imagine this is like giving birth...so much pain...let's do it again.  Smiley

Neal
  

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Re: Das Fliegende Auge...FW189 Uhu
Reply #25 - Sep 25th, 2022 at 1:05pm
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The same engine and prop setup on the later model Arado 96.  Very interesting arrangement for variable prop pitch.  I also enjoy researching the the aircraft when I build it and find many very interesting aspects of it's design and build.  This is turning out very nice.  I believe George of Volare Model Projects is either restoring a previous model or building a new FW-189 but in a larger scale (Jumbo Scale)!Click Here Scroll down to the video of his test flight!
  

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Kerak
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Re: Das Fliegende Auge...FW189 Uhu
Reply #24 - Sep 25th, 2022 at 9:56am
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The more I become acquainted with historical details of the Fw 189...the more remarkable the aircraft becomes.  It was designed by the direct hand of Kurt Tank and as such, was the very essence of utility and functionality. RLM was really looking for a design that would give them much without costing anything!  Tank gave them exactly what they were asking for...and more.  The aircraft utilized two relatively small engines manufactured by Argus...rated at around 450 hp each (RLM called for a single engine ac...rated at 900 hp).  The Argus 410/411 was a very dependable engine of proven reliability...air-cooled inverted Vee-12...which was especially useful on the Eastern Front.  Furthermore...it was economical...both to manufacture and operate!  The Fw 189 had two 29 gal. fuel tanks...located behind the LG well in each boom...giving the ac a range of 450 miles...not far...but far enough.  Well...read for yourself...https://en.wikipedia.org/wiki/Focke-Wulf_Fw_189_Uhu

One item that has continued to baffle me is that strange appearing spinner on the prop hub...looks like a death-dealing wheel hub out of Ben-Hur!  Actually...it is a "wind-powered" actuator for a propeller blade pitch controller.  I've seen video of the prop spinning and the actuator not turning...and conversely, the spinning prop coming to a halt...while the actuator is spinning.  Nothing fancy...but looks pretty complex to me.  Did the job effectively.

There were never a sufficient number of operational Fw 189's.

Neal
  

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Kerak
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Re: Das Fliegende Auge...FW189 Uhu
Reply #23 - Sep 23rd, 2022 at 1:29pm
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moving along...pics of v7+1h remains in the UK...looks like they had to "destroy the village in order to save it"...what the forest and climate didn't do...the recovery did. Huh
  

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Kerak
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Re: Das Fliegende Auge...FW189 Uhu
Reply #22 - Sep 22nd, 2022 at 9:14am
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Herr Professor Dr. Gunther E. Rothenberg...that's the outstanding lecturer of my previous post...absolutely my favorite university instructor of all time!  He's on Wikipedia...look him up.  German-born WWII British commando and a very demonstrative man.  Grin Smiley https://en.wikipedia.org/wiki/Gunther_E._Rothenberg  As a college freshman and desiring to add Dr. Rothenberg's upper level lecture, I had to first seek the professor's permission.  When I arrived at his office...he had another student inside and was "raising hell" with him.  Out came the unfortunate and in went I.  After presenting my request, Rothenberg's comment was...heavy German accent, "You just witnessed all of that and you still want to add my lecture?"  Of course I did..."Welcome."  I never regretted a single moment of any of his classes.  Outstanding man.  Besides, it was fun just listening to that accent! Wink

Well...rounded those boom outer edges...still looks pretty "square" to me...so will have to alter that perception with some outer stringers...to give things a bit more "shape."  Attached horz. stab/rudder section...as illustrated in pic.

Interesting find...sources state that after prototype series used single-strut LG (approx. six aircraft)..."A" production series converted to a more substantial double strut LG...and that's the way it remained thereafter for the Fw189 production.  So...nothing goes to waste...here are a couple of pics showing those initial single-strut LG aircraft...operationally at "the front."  Hmmmmm....

Also have again include a pic of V7+1H during initial recovery...gear extended.  Did Mothes lower his LG prior to impact with the treetops?  Wreckage of horz. stab also shows tail wheel extended.  Interesting...I guess that would serve to lower the airspeed a bit...but at what cost?

Last note...Mannerheim was actually of Swedish/Russian heritage...and could only just converse in Finnish...and today is their national hero.  Who would have thought...George Washington and Carl Gustav Emil Mannerheim would have so much in common?

My grandfather used to ask, "What did you learn today, young boy?"  Wink

Neal
  

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