Dear All,
In 1945 Czechs built a reverse-engineered version of the Messerschmitt Me 262 jet fighter, the Avia S-92. The Czechoslovakian Air Force used the type in 1948-51 before MiG-15 became available.
According to Bill Norton in "Air War on the Edge", his book on Israeli Air Force, the IAF secretly purchased 8 S.92 jets to answer the threat posed by Egyptian Meteors.
In 1950, according to British and Egyptian intelligence a jet fighter of unknown type exploded in the Israeli airspace. The British thought that it might be a de Havilland Vampire of unknown origin, while the Egyptians stated that they had information revealing that the IAF had secretly taken delivery of eight crated Avia S.92 jets.
It was an Egyptian spy plane or an S.92 exploded due an engine failure ?