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The Ongoing Mystery Aircraft Thread Part Deux.

No, not a Merc up front. However the automotive theme is heading you in the right direction, engine wise. What's up front in the photograph replaced something that came from Mercedes' home country. The replacement, however, could be said to have more affinity with a pair of wheels in tandem, rather than the parallel pair beneath it, and to have been produced by a company whose name might make lefty feel at home! As to what's behind, grainflugel suggests that you're thinking along the right geographical lines.
 
Unfortunately not, according to my source. Whilst manufactured by a company that is not a household name, its designers were associated with a company that is. The latter eventually absorbed the former.
 
As it doesn't seem that this one is going 'to fly', perhaps it's time to move on. The aeroplane illustrated is the 1924 Aachener ST Monoplane, designed by Ing. Shulz and Ing. Thomas, of the Junkers design bureau, and built by Aachener Segelflugzeugbau. Originally it was powered by a Siemens Mabeco V twin before the Douglas unit was substituted. Apparently it was also referred to as the Junkers S-7. Open house, ladies and gentlemen.
 
Hi boys and girls!

I'm seeking advice by referring to your encyclopedic knowledge: I possess a couple of pics of a german prewar Aircraft captioned Arado J1: I can't find any info on the net....maybe someone could supply some specs? Thanks in advance and apologies to Giru for interfering with his chopper...
Cheers
BG
 
@BG: see PN for the Arado.

The two-seat chopper is an amateur design that must be still around. It has been restored after 2000.
 
actual mystery aircraft:

Our chopper comes from Eastern Europe. Its design started in 1959 and construction in 1960. Its ground testing began in 1968. It appears in several editions of JAWA and on the web.
 
Thank you giruXX:encouragement:
When originally flown (1968) the WS-4 had a 4-wheel u/c and a tail section made of welded tubing. After modifications it was known as the WS-4 Bis and had a 3-wheel gear and single tubular tail boom.

Next challenge is a motorglider prototype (however, beware!)
 

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Well Walter, nobody else is diving in - not too many glider men here - so I'll walk into your trap. Obviously we're meant to say this is a Scheibe Motorfalke of some variety, but I can't find a mid-wing one.... also the wee outrigger wheelie things are too close together.
It's presumably something much more obscure, eh ?
 
Hi Mike :encouragement:
You are so very close!. Not a Motorfalke of sort, but the prototype of the SF-28 Tandemfalke (D-KAFJ). This prototype was configured with mid wings and also slight FSW (Forward Swept Wings).
The 120 or so production aircraft were low wing/unswept wing sopecimen.

May I invite you for the next one?
 
Thank you Walter - you are being generous
Here's a festive fun machine which will not hang around for long !
 

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I think that is Réné Arnoux' post-WW1 'bitsa' - a tailless biplane, constructed from parts of older aeroplanes in 1919/20, which was a 'proof of theory' machine which flew in 1922. However although I believe that I recognise the photograph, I cannot now find a picture of it!
 
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