Jericho is a general designation given to a loosely related family of deployed ballistic missiles developed by Israel from the 1960s forward. The name is taken from the first development contract for the Jericho I signed between Israel and Dassault in 1963, with the codename as a reference to the Biblical city of Jericho. As is true for most Israeli unconventional weapons systems, exact details are highly classified though there is observed test data, public statements by government officials, and details in open literature especially about the Shavit satellite launch vehicle. The later Jericho family development is related to the Shavit and Shavit II space launch vehicles believed to be derivatives of the Jericho II IRBM and which preceded the development of the Jericho III ICBM. The Lawrence Livermore National Laboratory concluded that the Shavit could be adapted as an ICBM carrying 500 kg warhead over 7500 km. Additional insight into the Jericho program was revealed by the South African series of missiles, of which the RSA-3 are believed to be licensed copies of the Jericho II/Shavit, and the RSA-4 that used part of these systems in their stack with a heavy first stage. Subsequent to the declaration and disarming of the South African nuclear program, the RSA series missiles were offered commercially as satellite launch vehicles, resulting in the advertised specifications becoming part of the public knowledge. The civilian space launch version of the Jericho, the Shavit, has been studied in an air launched version piggybacked on a Boeing 747 similar to a US experimental launch of the Minuteman ICBM from a C-5 Galaxy.
Jericho I was first publicly identified as an operational short-range ballistic missile system in late 1971. It was 13.4 metres (44 ft) long, 0.8 m (2 ft 7 in) in diameter, weighing 6.5 tonnes (14,000 lb). It had a range of 500 km (310 mi) and a CEP of 1,000 m (3,300 ft), and it could carry a payload estimated at 400 kilograms (880 lb). It was intended to carry a nuclear warhead. However, due to Israel's ambiguity over its nuclear weapons program, the missile is classified as a ballistic missile. Initial development was in conjunction with France, Dassault provided various missile systems from 1963 and a type designated MD-620 was test fired in 1965. But French co-operation was halted by an arms embargo from January 1968, though 12 missiles had been delivered from France. Work was continued by IAI at the Beit Zachariah facility and the program cost almost $1 billion up to 1980, incorporating some US technology. Despite some initial problems with its guidance systems, it is believed that around 100 missiles of this type were produced.