August Model Aircraft Monthly: Major Zero variant discovery (1 Viewer)

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Treacherous photos. Evil things took to misguide poor unfortunates in ground breaking theories.


I however have definitive photographic proof that the Bf 109 was actually a Bf 110 with one less engine. Now where did I put it....
 
Oh man...not more treacherous photos! Stop the madness!

Well in all honesty, it would be great to uncover something like that, but on a high profile aircraft like the Zero, you would have to look long and hard to discover something new after all these years.

I could see it if it were a significant aircraft with little or no remaining airframes like a Do335 or a KI-201, etc. Then the theory (hypothesis?) might be a little more accepted from the community as long as there were tangible evidence.

Radiuses Radii - these are the thingys that keep the engine cool, right? Radius for inline and Radii for the round ones?
Am I right, anyone?
 
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That first aircraft in the line-up is #5357, of which I have examined a close-up 1944-era photo of its fin.

There is a broad shallow dimple there below the 6, and a similar dimple is visible today.

http://i275.photobucket.com/albums/jj284/gaston11_2008/a6m5_5357_tail.jpg?t=1250917641

http://www.j-aircraft.com/walk/PaulONeil/chinozero/pa080073.jpg


This would prove the tail was never changed after capture, something the Saipan line-up photo had utterly convinced me of...

Unfortunately, since today's #5357 Zero, judging from the new Tamiya kit that is measured from it, has the "long" tail, this means the Saipan line-up of 1944 photo is deceptive as to the shortness of the first aircraft's tail.

The differences in viewing angle appear small to me, but it seems that logically the tails are indeed all identical...

I'm really sorry to have mislead anybody with this, but this was apparently supported by many other photos that were equally deceptive, and showed no real sign of the "fishbowl" effect... There was also the context of the MacArthur blueprint destruction order... I will have these other photos examined further by an image analyst, because I am mystified that the Zero's appearance is so capricious compared to any other WWII aircraft I have ever examined.

At least know that the Mitsubishi "long tail" drawing I made is still about as accurate as a profile gets, and very slightly more so than the Tamiya kit itself... Much better than the Tamiya instruction profiles at any rate! Oh well...

Note that some Zero restaurers in Manitoba did point out some minor Mitsubishi/Nakajima discrepancies, of a nature yet unknown...

On the plus side ( if there is one!), I DID find out, measuring 109s in 2 museums, that the Me-109E had wingroots 40 mm thinner than later F/G/K models, which may account for some of the fuselage shallowness I perceive in most 109 kits... The Hasegawas being 49" deep vs 51" actual (an error equal to 14" on the lenght).

I have more luck figuring out the 109 from photos, apparently...

I'll try to understand, with the help of an image analysis expert, how these Zero photos proved so much more deceptive than for the others WWII types, and for so long... So that this won't happen again!

Sorry again if I mislead anyone...

Gaston
 
Terry,.....Well, he has pulled his head in and said "It looks like I was wrong" stating, Quote " will still carry through with my photo analysis expert, but it looks like I was the victim of treacherous photos...Sorry to anyone I might have mislead..."

treacherous photos.......my first reaction....what a crock of sh!t!:rolleyes:

Another victim of the Japanese military complex...:rolleyes:
 
I'm not at all surprised in the difference in the wing root measurements of the Bf109E compared to the 'F' and later models - it was a totally different wing! And so was the empennage! BTW, part of my job, in the military and in my civilian career, was photographic analysis and interpretation....
 
All very interesting, just a question - do we have documented evidence of MacArthur ordering blueprints destroyed at the end of the war? Additionally, you design aircraft with blueprints, you build aircraft with tooling.

I would also think that interchangeability would have been a nightmare on this. Common production line aircraft have interchangeability problems, I could imagine aircraft coming from another manufacturer.
 
All very interesting, just a question - do we have documented evidence of MacArthur ordering blueprints destroyed at the end of the war? Additionally, you design aircraft with blueprints, you build aircraft with tooling.

I would also think that interchangeability would have been a nightmare on this. Common production line aircraft have interchangeability problems, I could imagine aircraft coming from another manufacturer.

That was my thought...it seems like their would have been anecdotal evidence at the very least (mechanics interviewed and the such). Their are some stories of mechanics cannibalizing aircraft in Rabaul but i never heard mention of any incompatibilities between manufacturers...
 
That was my thought...it seems like their would have been anecdotal evidence at the very least (mechanics interviewed and the such). Their are some stories of mechanics cannibalizing aircraft in Rabaul but i never heard mention of any incompatibilities between manufacturers...
Prime manufacturers had problems with interchangeability with their own production lines, here's a story about some of the logistical problems the Japanese had.

Japan's Fatally Flawed Air Forces in World War II HistoryNet
 
Here's something...

"Both main landing gear legs were completely removed, inspected and repaired where necessary. The left leg of No. 3030 was shot through with a heavy caliber bullet necessitating its replacement from other parts available. Parts were not interchangeable to a high degree, so much hand fitting was required"

Reconstruction of Japanese Type 0 Mk 2 SSF HAP

TAIC Report 163

I remember reading an interview with a former Japanese AAF pilot who spoke about the poor quality of their aircraft along with reliability and interchangeability problems. I'll try to find it.
 
To help explain what started all this, here are the original profile photos that got the ball rolling...:

http://www.warbirdphotographs.com/NavyBWZeros/A6M7-M63-4_small.jpg

http://www.warbirdphotographs.com/NavyBWZeros/Zero-96.jpg

The more critical first photo has a bigger more complete version here:

http://i81.photobucket.com/albums/j215/jicehem/Photoavecreprages_.jpg

Measuring various individual items on the larger photo (1/35.5 on my screen), such as the rudder hinge dogleg that is an actual 4.2" (106 mm) in lenght, made the whole aircraft come out at about 8.92 M. vs the quoted 9.06 m. lenght for the "known" Zero.

Seemingly confirming this, by matching precisely the canopy lenghts to scale, front and back, on the two smaller photos, I created a 6-8" shortfall in the Nakajima A6M7 tail versus the Mitsubishi A6M5 at take-off, but NO real mismatch at the front in cowling size/diameter etc...

Also the Hasegawa kit came up at 4" short compared to the new Tamiya, looking better against the big factory photo, and thus egging me on...

Even now, looking at this seemingly very neutral and unperturbed profile photo (better centered by half I think than the added red line would indicate), I do not see a photo severely afflicted by the partial distortion of the "fishbowl" effect... Minor elements seem to scale out roughly to the lenght, but a slightly shorter lenght...

I think there may be something specific about the Zero's shape that maybe conceals variations in angles or distortions: a lack of straight lines anywhere in the rear fuselage body maybe...

I have made seven other profiles visible here, some slightly hurt by conversion from Corel to PDF:

Advanced Air Force Variant

I have since massively improved these drawings, and the "Air Force" boardgame cards and rules, with much new surprising comparative data (E-mail me to get them free at - [email protected] - if you are interested), but even in this old outdated version, you can see all my profiles are quite OK, and better than many others in general outline... The Zero is the only one that really confounded my photo overlaying method, my old Zero drawing seen here being close to the 1/48th Hasegawa kit; 4" shorter than the correct Tamiya, but still looking better against the above big photo than the Tamiya, which fails to overlay it completely... But then the Tamiya does match better the Zero at take-off...

I am now in the position where either the big photo is of a one-off aircraft with a tail prototype (unlikely!), or it does have some selective fishbowl distortion that looks very neutral and discrete, maybe thanks to some of the elements of the Zero's shape...

When, in addition to this, I saw the line-up photo, I felt the differences in parking angles were not in line with the differences in tail appearance, but obviously I was wrong...

I think the seven fairly good profiles I made show that my method of choosing 90° neutral profile photos can yield good results, if the photos are not taken from too close, but obviously in the case of the Zero this failed...

The point I wanted to make is that the "line-up" photo was far from being my only starting point for this whole misguided theory...

Sorry again for the "much ado about little"...

Gaston
 
It's a shame that all that work was for nothing, in some ways. But a little advice for future projects - if you're going to measure and analyse photographs, do the initial work from an actual print, or a litho half-tone at least. Trying to obtain even half accurate measurements from a screen is difficult, if not impossible, due to the differences in compression and or distortion, unseen by the human eys, which effect all screens to at least a small degree.
 
I wonder if this is the short-tailed or long-tailed example?
Sorry, no offence meant, I just couldn't resist taking this shot at Duxford a couple of weeks back.....
 

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