The F-16I is a two-seat variant of the Block 52 Plus developed for the Israeli Defense Force – Air Force (IDF/AF).[citation needed] Israel issued a requirement in September 1997 and selected the F-16 in preference to the F-15 in July 1999. An initial "Peace Marble V" contract was signed on 14 January 2000 with a follow on contract signed on 19 December 2001 for a total procurement of 102 aircraft. The F-16I, which is called Sufa (Storm) by the IDF/AF, first flew on 23 December 2003, and deliveries to the IDF/AF began on 19 February 2004.[15] The F-16I has an estimated unit cost of approximately US$70 million (2006).[16]
The F-16I's most notable difference from the standard Block 52+ is that approximately 50% of the American avionics have been replaced by Israeli-developed avionics (such as the Israeli Aerial Towed Decoy replacing the ALE-50). The addition of Israeli-built autonomous aerial combat maneuvering instrumentation systems enables the training exercises to be conducted without dependence on ground instrumentation systems, and the helmet-mounted sight is also standard equipment. The helmet-mounted sight, head-up display (HUD), mission computer, presentation computer, and digital map display are made by Elbit Systems of Israel. Furthermore, the F-16I is able to employ Rafael's new Python 5 imaging infrared-guided high-agility air-to-air missile. The F-16I also has the Israel Aircraft Industries (IAI)-built removable conformal fuel tanks (CFT) added to extend its range; removal takes two hours. Key American-sourced systems include the F100-PW-229 turbofan engine, which offers commonality with the IDF/AF's F-15Is, and the APG-68(V)9 radar.
