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F117 Night Hawk
The Lockheed Martin F-117A Night Hawk,popularly referred to as Stealth Fighter ,started in 1973 as a design study codenamed Have Blue, the object was to derermind to what degree an aircraft could be made invisible to radar detection system. Two Experimental Stealth Tactical (XST) which first flew in mid 1977. The result being satisfactory, the decision to develop a production aircraft was taken about one year later.      The F-117A Stealth fighter is the world's first operational aircraft is designed to be invisible to radar.Constructed primary of aluminum, the F-117A 's fuselage comprises flat panels know as faces mounted on the aircraft subframe,their purpose being to reflect radar energy away from the transmitter itself,thus denying the visible return. All surfaces are coated with various absorbent materials. Grid covers on the intakes and use of narrow slot exhausts surrounded by heat absorbing tiles further reduce the chances of IR detection.      The F-117A production decision was made in 1978 with a contract awarded to Lockheed Advanced Development Project. The first flight of F-117A was in 1981, and the first delivery was in 1982 and the last delivery was in the fall of 1990. The price of this aircraft is approximately 45 Million US dollars.
SPECIFICATIONS F-117A Nighthawk (Stealth Fighter)
Power Plant (Engine)	General Electric	GE F404-F1D1
Number of Engine		2
Engine Thrust	4,899 kgs	10,800 lbs
Wing Span	13.20 m.	43 ft.4 in.
Length	20.08 m	65 ft.11 in.
Speed	1,040 km/hr	646 mph.
Range (can be inflight refueling)	1,056 km.	656 miles
Takeoff Weight		23814 kg.(52500 lbs)
Payloads		N/A
Crew		1
Armament	up to 2,268 kgs (5000lbs.)	two-2000 lbs.BLU-109, GBU-24,GBU-27LGBs, AIM-9 (Sidewinder), AGM-65(Marverick)
		cockpit F-117 Stealth
1 nm.(nautical mile) = 1.15155 miles, 1 kt (knot) = 1.15155 mile / hr. 1 mach = 761 mph.(SL,ISA)
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