Avia S-92

Considering that every jigs, tools and component required to manufacture the Me.262 were left behind in Czechoslovakia by the Germans, were seized by the Soviets and then handed back to Czechoslovak authorities by the Marshal Ivan Konev, it comes no surprise that the Me.262A1-a was manufactured in Czechoslovakia after the World War II.

More precisely, Me.262 fuselages had been produced in Letnany, some other components were built in converted railway tunnels and CKD and Walter Works had manufactured the Junkers Jumo 004 turbojet engine at Cheb, close to the German border.
That way, enough components were recovered and/or manufactured to build 17 single and two-seat Me.262, flying the first single-seater one on 27th August 1946, even if on 5th September it was lost in an accident. A second one, named as Avia S-92 first series, flew on 24th October and was followed by the first CS-92 (the two-seater trainer variant) on 10th December.
It was dubbed Turbina (Turbine) and the 7th aircraft of the CS variant was fitted with a BMW 003 turbojets, with 950kgp of thrust power. However the flight test weren't satisfactory so it fitted back to the standard Jumo engines. The eleventh and twelth aircrafts were completed during 1949 and the summer of 1950 to equip the 5th Fighter Squadron which was exclusively flying the Turbinas, however this unit was disbanded a year later and the S-92 were scrapped.

Sources:
1. Salamander Books - The Complete Book of Fighters
2. http://www.military.cz/czech/air/avia/s92/default.htm (translated)

Avia S-92 - Never were users

This is some atypical post as we cover the intended foreign users of this airplane.

The first country to show interest on this airplane was Yugoslavia, as in 1947 a Yugoslav pilot was trained in Czechoslovakia on the type.
The Yugoslav were very interested on improving their fighter fleet with some jets in order to support their mixed propeller fighters. After reconsidering it, they decided to stick to propeller fighters until the more modern jets like the American F-84 Thunderjet was available. Their other concern was that Avia maybe could cancel the S-92 project as it wasn't economically profitable.

Israel on it's part, showed some interest on the type during 1948 and 1949 in order to fly them or buying the already completed few ones for cash. Apparently, in 1950 there are reports from Egyptian intelligence of an Israeli jet fighter crashing into Ekron airbase, when the whole Israeli Air Force at the time was still piston-powered. According to that report the type that crashed was most likely an Avia S-92. Some time later, an Egyptian transport airplane reported that was harassed by an Israeli jet airplane that looked like a German Me.262.
Actually, the S-92 was never flown by the IAF even if they started negotiations to buy it. It seems that the origin of the urban legend is on the British intentional leaks to Egyptian intelligence in order to cover-up the fact that, in 1950, Israel had already jet fighters, some of the earlier version of the Gloster Meteor and some De Havilland Vampires, even if it wasn't until 1953 that they oficially recognized their existance.
The IAF has stated many times, the last one in 2005 that they have never flown the Avia S-92.

Sources:
1. https://wwiiafterwwii.wordpress.com/2015/08/12/the-s-92-czechoslovakias-me-262/
2. Salamander Books - The Complete Book of FIghters