to replace Switzerland's fleet of F/A-18 Hornets. A total of 36 aircraft are planned to be procured, alongside which Switzerland will also purchase five MIM-104 Patriot SAM systems. Switzerland allocated $6.48 billion funds for total 36 F-35A fighter jets. Raytheon America to partner with Rheinmetall Air Defence and Radar Systems and Mercury Systems to provide Patriot air defense systems to Switzerland as part of $2.16 billion contract. Equipment and designations Aircraft Former used radar systems FLORIDA Airspace monitoring and management system- US origin – 1970/2003 SRF Airspace monitoring and management system- French origin – 1955/1970 LGR-1 Radar- US origin – 1948/1955 Target allocation radar TPS-1E- US origin Italian licensed – 1958/1989 Super Fledermaus- Swiss origin – 1965/1977 Fire control radar Mark VII- UK origin – 1958/1967 Former used anti-aircraft systems Oerlikon 20 mm cannon- Swiss origin – 1937/1992 (L Flab Kan 37) Oerlikon 20 mm cannon- Swiss origin – 1954/1995 (L Flab Kan 54 Oe) Bloodhound missile system- UK origin – 1964/1999 (Flab Lwf BL 64) Some systems have also been offered by Swiss and foreign companies to be trialled by the Swiss Air Force but these have never been purchased. Fliegerabwehrpanzer 68 – Swiss origin – 1958/1964 RSA missiles – Swiss origin – 1946/ 1958 RSD 58 missiles – Swiss origin – 1952/1958 RSE Kriens missiles – Swiss origin – 1958/1966 MOWAG Shark – Swiss/UK origin – 1981/1983 with French Crotale missiles and the UK twin AAA Wildcat 2×30mm cannon. Air demonstration teams The Air Force has a number of aerobatic teams and solo display aircraft that are used to represent the Swiss Air Force at events around Europe: Patrouille Suisse – An aerobatic team originally formed in 1964 with four Hawker Hunters, since 1996 used six Northrop F-5E in a red and white livery; the aircraft have been fitted with smoke generators. PC-7 Team – A turboprop display team using nine Pilatus PC-7s turboprop trainers. Hornet Solo Display – A single F/A-18 Hornet. Super Puma Display – A single Eurocopter AS332 Super Puma. Parachute Reconnaissance Company 17 performs parachute displays as the "Air Show Team". Aircraft serial numbering Swiss military aircraft are identified by a role prefix and number, the prefix or code identifies the role and the serial numbers the type or variant, the system was introduced in 1936. This is followed by a number having from two to four digits In four digit numbers, the first