Dassault Mirage 4000
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|Mirage 4000 prototype|
|Role||Prototype fighter aircraft|
|First flight||9 March 1979|
|Status||Program cancelled in the 1980s|
|Primary user||French Air Force|
|Developed from||Dassault Mirage 2000|
Design and development
The Mirage 4000 was noticeably larger and heavier than the single-engined Mirage 2000, the 4000 having two SNECMA M53-2 turbofans. It also featured small canards above the engine air intakes and a true bubble canopy, compared to the Mirage 2000 and previous Mirages. Despite the changes, the two aircraft remained similar, sharing the delta wing design, semi-circular air intakes, and general configuration.
The Mirage 4000 first flew on 9 March 1979. It was financed as a private venture by Dassault. The Mirage 4000 was comparable in size to the United States F-15 Eagle, and was designed to be both a long-range interceptor and a capable fighter-bomber.
In the early 1980s, Dassault ended the program shortly after the Saudis chose the Tornado (see Al-Yamamah arms deal) as their preferred aircraft. The French Air Force preferred to concentrate on the Mirage 2000, leaving Dassault with no customers. Some of the expertise thus gained would later influence the Dassault Rafale.  The only prototype moved to its final residence at the Musée de l'Air et de l'Espace (Paris Air and Space Museum) in 1995.
Specifications (Mirage 4000)
Data from Dassault Aviation. 
- Crew: one
- Length: 18.70 m (61 ft 4 in)
- Wingspan: 12.00 m (39 ft 4 in)
- Height: 5.80 m (19 ft 0 in)
- Wing area: 73.0 m² (785 ft²)
- Empty weight: 13,000 kg (29,000 lb)
- Powerplant: 2 × SNECMA M53-2 afterburning turbofans, 95 kN (22,000 lbf) each
- Maximum speed: 2,445 km/h (1,320 kn, 1,519 mph)
- Range: 2,000 km (1,100 NM, 1,200 mi)
- Service ceiling: 20,000 m (66,000 ft)
Aircraft of comparable role, configuration and era
|Wikimedia Commons has media related to Dassault Mirage 4000.|
- Jackson, Paul. Modern Combat Aircraft 23 - Mirage. London. Guild Publishing. 1985.