Clue -
The prototype's performance was spectacular, with a top speed of 635 KPH (395 MPH), range of 2,500 kilometers (1,550 miles), and ceiling of 10,600 meters (34,800 feet).

Last clue
Following inspection of a mockup, the state authorities ordered the construction of prototypes of the "Aircraft 103", as it was initially designated.

No one got the answer 100% this week.
So no stewardess again.
The answer

This weeks headache ??

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Pe-3? Tu-2? Pe-8?

Maty12

Uhm, Duggy, I did guess Tu-2.

But you were not 100 % sure.
You guessed three aircraft, so no stewardess I am afraid.

The plane on the latest photo is a Fokker D.XXI.

Well done Juri it is.

LINK - https://en.wikipedia.org/wiki/Fokker_D.XXI
And the prize.

This weeks headache

Have fun

I know this one...Dornier Do.B Merkur