Is the following paragraph true? It's the first time that I hear that.
From www.acig.org:
"Very soon and again with the US help, the cooperation with France was re-established in a clandestine operation, which saw delivery of 50 "embargoed" Mirage 5Js in crates to Israel with the help of US C-5 Galaxy transports. These aircraft were not the same 50 Mirage 5J built for Israel: these were taken by the French Air Force. Instead, between 1969 and 1971 Dassault has built a new series: the aircraft were paid for by the USA and then shipped to IAI, which put them together between late 1969 and 1973, explaining in the public that it was beginning production of an "indigenous" Israeli fighter, originally called Mirage Mod, but later Nesher. Officially, this was "possible" due to cooperation of a Swiss engineer who should have "revealed" the secrets of Mirage 5 to Israel (and was even sentenced to several years of prison for doing this!). However, the company for which he was working was involved only in the production of Atar engines, and he could in no way have supplied the entire technical documentation need for the Israelis to build a completely new fighter. "
Max
From www.acig.org:
"Very soon and again with the US help, the cooperation with France was re-established in a clandestine operation, which saw delivery of 50 "embargoed" Mirage 5Js in crates to Israel with the help of US C-5 Galaxy transports. These aircraft were not the same 50 Mirage 5J built for Israel: these were taken by the French Air Force. Instead, between 1969 and 1971 Dassault has built a new series: the aircraft were paid for by the USA and then shipped to IAI, which put them together between late 1969 and 1973, explaining in the public that it was beginning production of an "indigenous" Israeli fighter, originally called Mirage Mod, but later Nesher. Officially, this was "possible" due to cooperation of a Swiss engineer who should have "revealed" the secrets of Mirage 5 to Israel (and was even sentenced to several years of prison for doing this!). However, the company for which he was working was involved only in the production of Atar engines, and he could in no way have supplied the entire technical documentation need for the Israelis to build a completely new fighter. "
Max