F-15

American jet fighter

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Specs

Primary Function: Tactical fighter.
Contractor: McDonnell Douglas Corp.
Power Plant: Two Pratt & Whitney F100-PW-100 turbofan engines with afterburners.
Thrust: (C/D models) 25,000 pounds each engine ( 11,250 kilograms).
Length: 63 feet, 9 inches (19.43 meters).
Height: 18 feet, 8 inches (5.69 meters).
Wingspan: 42 feet, 10 inches (13.06 meters)
Speed: 1,875 mph (Mach 2.5-plus at sea level).
Ceiling: 65,000 feet (19,697 meters).
Armament: One M-61A1 20mm multibarrel gun mounted internally with 940 rounds of ammunition; four AIM-9L/M Sidewinder and four AIM-7F/M Sparrow missiles, or a combination of AIM-9L/M, AIM-7-F/M and AIM-120 missiles.
Crew: F-15A/C: one. F-15B/D: two.
Date Deployed: July 1972

No other aircraft dominated air-to-air combat in the forty years after the Vietnam War like the F-15 Eagle, which has downed over 100 opponents: including 15 Syrian MiGs by Israel in the 1979–81 Israeli-Lebanese border disputes, 40 Syrian jet fighters and one helicopter during the 1982 Lebanon War, and 36 Iraqi aircaft by the Americans in the 1991 Gulf War.

January 16, 1991, over western Iraq: Capt. Tony Schiavi of the USAF 33rd TFW, heard the AWACS report, "Bandits taking off from H2, a whole group, heading northeast." Capt. Schiavi and three other F-15s immediately headed that way to give chase. With a one hundred mile head start, the Iraqi jets would be hard to catch. Accelerating rapidly, the F-15s were burning up fuel at a prodigious rate. Then the AWACS piped up again, more Iraqi jets were taking off from H2. These were much closer, but was it a trap?

The American pilots punched off their wing tanks, dove down from 25,000 feet, heading for the remote Iraqi airbase, still invisible beneath the winter cloud cover. Capt. Rhory Draeger locked onto a target, presumably the enemy leader. Tony Schiavi picked out another Iraqi jet, closed to within twenty miles, and locked on with his AIM-7 Sparrow air-to-air missile. Both pilots let go their 500-lb., radar-guided, missiles at the same time. With their two-stage rocket motors, and advanced electronics, the AIM-7Ms used in the 1991 war had a 40% hit rate. Capable of Mach 4, the Sidewinders would overtake their targets in seconds.

Just then the clouds opened up, and down on the deck, the American pilots spotted three MiG-23 Floggers speeding across the desert. Capt. Draeger's missile hit his target, but, incredibly, the MiG flew through the fireball created by the Sidewinder's 88 pounds of high explosive. (If that doesn't sound like a lot, think how much one stick of dynamite weighs.) Damaged, but not destroyed, the MiG flew on a few more seconds until the fire reached the wingroot, then it blew up. Meanwhile, Capt. Schiavi's missile impacts his target, destroying it immediately. A third F-15 pilot, Captain Cesar Rodriguez, also scored on this encounter. Three kills, zero losses. That's what happened every time the F-15s met the enemy over Iraq in 1991.


The F-15 Eagle is an all-weather, extremely maneuverable, tactical fighter designed to gain and maintain air superiority in aerial combat.

The Eagle's air superiority is achieved through a mixture of unprecedented maneuverability and acceleration, range, weapons and avionics. It can penetrate enemy defense and outperform and outfight any current or projected enemy aircraft. The F-15 has electronic systems and weaponry to detect, acquire, track and attack enemy aircraft while operating in friendly or enemy-controlled airspace. Its weapons and flight control systems are designed so one person can safely and effectively perform air-to-air combat.

A multimission avionics system sets the F-15 apart from other fighter aircraft. It includes a head-up display, advanced radar, inertial navigation system, flight instruments, UHF communications, tactical navigation system and instrument landing system. It also has an internally mounted, tactical electronic-warfare system, "identification friend or foe" system, electronic countermeasures set and a central digital computer.

DEVELOPMENT PROGRAM:

First flight of YF-15 27 July 1972; first F-15C (78-468) 26 February 1979; first F-15D 19 June 1979; P&W F100-PW-220 standard since 1985; last of 894 F-15A/B/C/Ds delivered 3 November 1989; production restarted during 1991 to produce five for Israel and 12 for Saudi Arabia; production now concentrated on F-15E.

DESIGN FEATURES:

NACA 64A aerofoil section with conical camber on leading-edge; sweepback 38 degrees 42' at quarter-chord; thickness/chord ratio 6.6 per cent at root, 3 per cent at tip; anhedral 1 degree; incidence 0 degrees. Twin fins positioned to receive vortex off wing and maintain directional stability at high angles of attack. Straight two-dimensional external compression engine air inlet each side of fuselage. Air inlet controllers by Hamilton Standard. Air inlet actuators by National Water Lift.

STRUCTURE:

Wing based on torque box with integrally machine skins and ribs of light alloy and titanium; aluminium honeycomb wingtips, flaps and ailerons; airbrake panel of titanium, aluminium honeycomb and graphite/epoxy composites skin.

LANDING GEAR:

Hydraulically retractable tricycle type, with single wheel on each unit. All units retract forward. Cleveland nose and main units, each incorporating an oleo-pneumatic shock absorber. Nosewheel and tyre by Goodyear, size 22 x 6.6-10, pressure 17.93 bars (260 lb/sq in). Mainwheels by Bendix, with Goodyear tyres size 34.5 x 9.75-18, pressure 23.44 bars (340 lb/sq in). Bendix carbon heat-sink brakes. Hydro-Aire wheel braking skid control system.

POWER PLANT:

Two Pratt & Whitney F100-PW-220 turbofans, each rated at 105.7 kN (23,770 lb st) with afterburning for take-off. Internal fuel in eight Goodyear fuselage tanks, total capacity 7836 litres (2070 US gallons; 1724 Imp gallons). Simmonds fuel gauge system. Optional conformal fuel tanks attached to side of engine air intakes, beneath wing, each containing 2839 litres (750 US gallons; 624 Imp gallons). Provision for up to three additional 2309 litre (610 US gallon; 508 Imp gallon) external fuel tanks. Max total internal and external fuel capacity 20,441 litres (5400 US gallons; 4496 Imp gallons).

ACCOMMODATION:

Pilot only, on McDonnell Douglas ACES II ejection seat. Stretched acrylic canopy and windscreen. Windscreen anti-icing valve by Dynasciences Corporation.

AVIONICS:

General Electric automatic analogue flight control system standard. Hughes Aircraft AN/APG-63 X-band pulse Doppler radar (upgraded to AN/APG-70 under MSIP), equipped since 1980 with a Hughes Aircraft programmable signal processor, provides long-range detection and tracking of small high-speed targets operating at all altitudes to treetop level, and feeds accurate tracking information to the IBM CP-1075 96K (24K on early F-15C/Ds) central computer to ensure effective launch of the aircraft's missiles or the firing of its internal gun. For close-in dogfights, the radar acquires the target automatically and the steering/weapon system information is displayed on a McDonnell Douglas Electronics AN/AVQ-20 head-up display. A Teledyne Electronics AN/APX-101 IFF transponder informs ground stations and other suitably equipped aircraft that the F-15 is friendly. It also supplies data on the F-15's range, azimuth, altitude and identification to air traffic controllers. A Hazeltine AN/APX-76 IFF interrogator informs the pilot if an aircraft seen visually or on radar is friendly. A Litton reply evaluator for the IFF system operates with the AN/APX-76. A Honeywell vertical situation display set, using a cathode ray tube to present radar, electro-optical identification and attitude director indicator formats to the pilot, permits inputs received from the aircraft's sensors and the central computer to be visible to the pilot under any light conditions.

ARMAMENT:

Provision for carriage and launch of a variety of air-to-air weapons over short and medium ranges, including four AIM-9L/M Sidewinders, four AIM-7F/M Sparrows or eight AIM-120 AMRAAM, and a 20 mm M61A1 six-barrel gun with 940 rounds of ammunition. General Electric lead-computing gyro. A Dynamic Controls Corporation armament control system keeps the pilot informed of weapons status and provides for their management. Three air-to-surface weapon stations (five if configured with conformal fuel tanks) allow for the carriage of up to 10,705 kg (23,600 lb) of bombs, rockets or additional ECM equipment. AN/AWG-20 armament control system.

Sources:

National Museum of the USAF

The Encyclopedia of 20th Century Air Warfare, edited by Chris Bishop, 2001, Aerospace Publishing


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