Aircraft and Helicopter (Part 2)
Source: www.military.com

F-117A Nighthawk

Function: The F-117A Nighthawk is the world's first operational aircraft designed to exploit low-observable stealth technology.

History: The first F-117A was delivered in 1982, and the last delivery was in the summer of 1990. The F-117A production decision was made in 1978 with a contract awarded to Lockheed Advanced Development Projects, the "Skunk Works," in Burbank, CA. The first flight was in 1981, only 31 months after the full-scale development decision. Air Combat Command's only F-117A unit, the 4450th Tactical Group, (now the 49th Fighter Wing, Holloman Air Force Base, NM), achieved operational capability in October 1983.

Streamlined management by Aeronautical Systems Center, Wright-Patterson AFB, OH, combined breakthrough stealth technology with concurrent development and production to rapidly field the aircraft. The F-117A program has demonstrated that a stealth aircraft can be designed for reliability and maintainability. The aircraft maintenance statistics are comparable to other tactical fighters of similar complexity. Logistically supported by Sacramento Air Logistics Center, McClellan AFB, CA, the F-117A is kept at the forefront of technology through a planned weapon system improvement program located at USAF Plant 42 at Palmdale, CA.

Description: The unique design of the single-seat F-117A provides exceptional combat capabilities. About the size of an F-15 Eagle, the twin-engine aircraft is powered by two General Electric F404 turbofan engines and has quadruple redundant fly-by-wire flight controls. Air refuelable, it supports worldwide commitments and adds to the deterrent strength of the U.S. military forces.

The F-117A can employ a variety of weapons and is equipped with sophisticated navigation and attack systems integrated into a state-of-the-art digital avionics suite that increases mission effectiveness and reduces pilot workload. Detailed planning for missions into highly defended target areas is accomplished by an automated mission planning system developed, specifically, to take advantage of the unique capabilities of the F-117A.

F-15 Eagle

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

History: The first F-15A flight was made in July 1972, and the first flight of the two-seat F-15B (formerly TF-15A) trainer was made in July 1973. The first Eagle (F-15B) was delivered in November 1974. In January 1976, the first Eagle destined for a combat squadron was delivered.

The single-seat F-15C and two-seat F-15D models entered the Air Force inventory beginning in 1979. These new models have Production Eagle Package (PEP 2000) improvements, including 2,000 pounds (900 kilograms) of additional internal fuel, provision for carrying exterior conformal fuel tanks and increased maximum takeoff weight of up to 68,000 pounds (30,600 kilograms).

The F-15 Multistage Improvement Program was initiated in February 1983, with the first production MSIP F-15C produced in 1985. Improvements included an upgraded central computer; a Programmable Armament Control Set, allowing for advanced versions of the AIM-7, AIM-9, and AIM-120A missiles; and an expanded Tactical Electronic Warfare System that provides improvements to the ALR-56C radar warning receiver and ALQ-135 countermeasure set. The final 43 included a Hughes APG-70 radar.

F-15C, D and E models were deployed to the Persian Gulf in 1991 in support of Operation Desert Storm where they proved their superior combat capability with a confirmed 26:0 kill ratio. F-15 fighters accounted for 36 of the 39 Air Force air-to-air victories. F-15Es were operated mainly at night, hunting SCUD missile launchers and artillery sites using the LANTIRN system.

They have since been deployed to support Operation Southern Watch, the patrolling of the UN-sanctioned no-fly zone in Southern Iraq; Operation Provide Comfort in Turkey; in support of NATO operations in Bosnia, and recent air expeditionary force deployments.

Description: 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 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. The weapons and flight control systems are designed so one person can safely and effectively perform air-to-air combat.

The F-15's superior maneuverability and acceleration are achieved through high engine thrust-to-weight ratio and low wing loading. Low wing-loading (the ratio of aircraft weight to its wing area) is a vital factor in maneuverability and, combined with the high thrust-to-weight ratio, enables the aircraft to turn tightly without losing airspeed.

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, ultrahigh frequency 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.

The head-up display projects on the windscreen all essential flight information gathered by the integrated avionics system. This display, visible in any light condition, provides the pilot information necessary to track and destroy an enemy aircraft without having to look down at cockpit instruments.

The F-15's versatile pulse-Doppler radar system can look up at high-flying targets and down at low-flying targets without being confused by ground clutter. It can detect and track aircraft and small high-speed targets at distances beyond visual range down to close range, and at altitudes down to treetop level. The radar feeds target information into the central computer for effective weapons delivery. For close-in dogfights, the radar automatically acquires enemy aircraft, and this information is projected on the head-up display. The F-15's electronic warfare system provides both threat warning and automatic countermeasures against selected threats.

A variety of air-to-air weaponry can be carried by the F-15. An automated weapon system enables the pilot to perform aerial combat safely and effectively, using the head-up display and the avionics and weapons controls located on the engine throttles or control stick. When the pilot changes from one weapon system to another, visual guidance for the required weapon automatically appears on the head-up display.

The Eagle can be armed with combinations of four different air-to-air weapons: AIM-7F/M Sparrow missiles or AIM-120 advanced medium range air-to-air missiles on its lower fuselage corners, AIM-9L/M Sidewinder or AIM-120 missiles on two pylons under the wings, and an internal 20mm Gatling gun in the right wing root.

Low-drag, conformal fuel tanks were especially developed for the F-15C and D models. Conformal fuel tanks can be attached to the sides of the engine air intake trunks under each wing and are designed to the same load factors and airspeed limits as the basic aircraft. Each conformal fuel tank contains about 114 cubic feet of usable space. These tanks reduce the need for in-flight refueling on global missions and increase time in the combat area. All external stations for munitions remain available with the tanks in use. AIM-7F/M Sparrow missiles, moreover, can be attached to the corners of the conformal fuel tanks.

The F-15E is a two-seat, dual-role, totally integrated fighter for all-weather, air-to-air and deep interdiction missions. The rear cockpit is upgraded to include four multi-purpose CRT displays for aircraft systems and weapons management. The digital, triple-redundant Lear Siegler flight control system permits coupled automatic terrain following, enhanced by a ring-laser gyro inertial navigation system.

For low-altitude, high-speed penetration and precision attack on tactical targets at night or in adverse weather, the F-15E carries a high-resolution APG-70 radar and low-altitude navigation and targeting infrared for night pods.

F-15E Strike Eagle

Function: The F-15E Strike Eagle is a dual-role fighter designed to perform air-to-air and air-to-ground missions. An array of avionics and electronics systems gives the F-15E the capability to fight at low altitude, day or night, and in inclement weather and perform its primary function as an air-to-ground attack aircraft.

History: The F-15's superior maneuverability and acceleration are achieved through its high engine thrust-to-weight ratio and low-wing loading. It was the first U.S. operational aircraft whose engines' thrust exceeded the plane's loaded weight, permitting it to accelerate even while in vertical climb. Low-wing loading (the ratio of aircraft weight to its wing area) is a vital factor in maneuverability and, combined with the high thrust-to-weight ratio, enables the aircraft to turn tightly without losing airspeed.

The first flight of the F-15A was made in July 1972. In November 1974, the first Eagle was delivered to the 58th Tactical Fighter Training Wing at Luke Air Force Base, Ariz., where training began in both F-15A and B aircraft. In January 1976, the first F-15 destined for a combat squadron was delivered to the 1st Tactical Fighter Wing at Langley Air Force Base, VA.

The single-seat F-15C and two-seat F-15D models entered the Air Force inventory in 1979 and were delivered to Kadena Air Base, Okinawa, Japan. These models were equipped with production Eagle package improvements, including 2,000 pounds of additional internal fuel, provisions for carrying exterior conformal fuel tanks, and increased maximum takeoff weight of 68,000 pounds.

The first production model of the F-15E was delivered to the 405th Tactical Training Wing, Luke Air Force Base, AZ, in April 1988.

Description: The aircraft uses two crew members, a pilot and a weapon systems officer. Previous models of the F-15 are assigned air-to-air roles; the "E" model is a dual-role fighter. It has the capability to fight its way to a target over long ranges, destroy enemy ground positions and fight its way out.

An inertial navigation system uses a laser gyro to continuously monitor the aircraft's position and provide information to the central computer and other systems, including a digital moving map in both cockpits.

The APG-70 radar system allows air crews to detect ground targets from longer ranges. One feature of this system is that after a sweep of a target area, the crew freezes the air-to-ground map then goes back into air-to-air mode to clear for air threats. During the air-to-surface weapon delivery, the pilot is capable of detecting, targeting and engaging air-to-air targets while the WSO designates the ground target.

The low-altitude navigation and targeting infrared for night (LANTIRN) system allows the aircraft to fly at low altitudes, at night and in any weather conditions, to attack ground targets with a variety of precision-guided and unguided weapons. The LANTIRN system gives the F-15E unequaled accuracy in weapons delivery day or night and in poor weather, and consists of two pods attached to the exterior of the aircraft.

The navigation pod contains terrain-following radar which allows the pilot to safely fly at a very low altitude following cues displayed on a heads up display. This system also can be coupled to the aircraft's autopilot to provide "hands off" terrain-following capability.

The targeting pod contains a laser designator and a tracking system that mark an enemy for destruction as far away as 10 miles. Once tracking has been started, targeting information is automatically handed off to infrared air-to-surface missiles or laser-guided bombs.

One of the most important additions to the F-15E is the rear cockpit, reserved for the weapons systems officer. On four screens, this officer can display information from the radar, electronic warfare or infrared sensors, monitor aircraft or weapons status and possible threats, select targets, and use an electronic "moving map" to navigate. Two hand controls are used to select new displays and to refine targeting information. Displays can be moved from one screen to another, chosen from a "menu" of display options.

In addition to three similar screens in the front seat, the pilot has a transparent glass heads up display screen at eye level that displays vital flight and tactical information. The pilot doesn't need to look down into the cockpit, for example, to check weapon status. At night, the screen is even more important because it displays a video picture nearly identical to a daylight view of the world that is generated by the forward-looking infrared sensor.

The F-15E is powered by two Pratt & Whitney F100-PW-220 or 229 engines that incorporate advanced digital technology for improved performance. For example, with a digital electronic engine control system, F-15E pilots can accelerate from idle power to maximum afterburner in less than four seconds, a 40 percent improvement over the previous engine control system. Faster engine acceleration means quicker takeoffs and crisper response while maneuvering. The F100-PW-220 engines can produce 50,000 pounds of thrust (25,000 each) and the F100-PW-229 engines 58,000 pounds of thrust (29,000 each).

Each of the low-drag conformal fuel tanks that hug the F-15E's fuselage can carry 750 gallons of fuel. The tanks hold weapons on short pylons rather than conventional weapon racks, reducing drag and further extending the range of the Strike Eagle.

For air-to-ground missions, the F-15E can carry most weapons in the Air Force inventory. It also can be armed with AIM-7F/M Sparrows, AIM-9M Sidewinders and AIM-120 advanced medium range air-to-air missiles (AMRAAM) for the air-to-air role. The "E" model also has an internally mounted 20mm gun that can carry up to 500 rounds .

F-16 Fighting Falcon

Function: The F-16 Fighting Falcon is a compact, multirole fighter aircraft. It is highly maneuverable and has proven itself in air-to-air combat and air-to-surface attack. It provides a relatively low-cost, high-performance weapon system for the United States and allied nations.

History: The F-16A, a single-seat model, first flew in December 1976. The first operational F-16A was delivered in January 1979 to the 388th Tactical Fighter Wing at Hill Air Force Base, Utah.

The F-16B, a two-seat model, has tandem cockpits that are about the same size as the one in the A model. Its bubble canopy extends to cover the second cockpit. To make room for the second cockpit, the forward fuselage fuel tank and avionics growth space were reduced. During training, the forward cockpit is used by a student pilot with an instructor pilot in the rear cockpit.

All F-16s delivered since November 1981 have built-in structural and wiring provisions and systems architecture that permit expansion of the multirole flexibility to perform precision strike, night attack and beyond-visual-range interception missions. This improvement program led to the F-16C and F-16D aircraft, which are the single- and two-place counterparts to the F-16A/B, and incorporate the latest cockpit control and display technology. All active units and many Air National Guard and Air Force Reserve units have converted to the F-16C/D.

The F-16 is being built under an unusual agreement creating a consortium between the United States and four NATO countries: Belgium, Denmark, the Netherlands and Norway. These countries jointly produced with the United States an initial 348 F-16s for their air forces. Final airframe assembly lines were located in Belgium and the Netherlands. The consortium's F-16s are assembled from components manufactured in all five countries. Belgium also provides final assembly of the F100 engine used in the European F-16s. The long-term benefits of this program will be technology transfer among the nations producing the F-16, and a common-use aircraft for NATO nations. This program increases the supply and availability of repair parts in Europe and improves the F-16's combat readiness.

USAF F-16 multi-mission fighters were deployed to the Persian Gulf in 1991 in support of Operation Desert Storm, where more sorties were flown than with any other aircraft. These fighters were used to attack airfields, military production facilities, Scud missiles sites and a variety of other targets.

Description: In an air combat role, the F-16's maneuverability and combat radius (distance it can fly to enter air combat, stay, fight and return) exceed that of all potential threat fighter aircraft. It can locate targets in all weather conditions and detect low flying aircraft in radar ground clutter. In an air-to-surface role, the F-16 can fly more than 500 miles (860 kilometers), deliver its weapons with superior accuracy, defend itself against enemy aircraft, and return to its starting point. An all-weather capability allows it to accurately deliver ordnance during non-visual bombing conditions.

In designing the F-16, advanced aerospace science and proven reliable systems from other aircraft such as the F-15 and F-111 were selected. These were combined to simplify the airplane and reduce its size, purchase price, maintenance costs and weight. The light weight of the fuselage is achieved without reducing its strength. With a full load of internal fuel, the F-16 can withstand up to nine G's -- nine times the force of gravity -- which exceeds the capability of other current fighter aircraft.

The cockpit and its bubble canopy give the pilot unobstructed forward and upward vision, and greatly improved vision over the side and to the rear. The seat-back angle was expanded from the usual 13 degrees to 30 degrees, increasing pilot comfort and gravity force tolerance. The pilot has excellent flight control of the F-16 through its "fly-by-wire" system. Electrical wires relay commands, replacing the usual cables and linkage controls. For easy and accurate control of the aircraft during high G-force combat maneuvers, a side stick controller is used instead of the conventional center-mounted stick. Hand pressure on the side stick controller sends electrical signals to actuators of flight control surfaces such as ailerons and rudder.

Avionics systems include a highly accurate inertial navigation system in which a computer provides steering information to the pilot. The plane has UHF and VHF radios plus an instrument landing system. It also has a warning system and modular countermeasure pods to be used against airborne or surface electronic threats. The fuselage has space for additional avionics systems.

F/A-18A/C Hornet

Function: Specific F/A-18A/C tasks include:

- Intercept and destroy enemy aircraft in conjunction with ground or airborne fighter control under all-weather conditions.

- Conduct day and night close air support under the weather.

- Conduct day and night deep air support, under the weather. Deep air support consists of radar search and attack, interdiction, and strikes against enemy installations using all types of weapons compatible with assigned aircraft.

- Conduct armed escort of friendly aircraft.

- Be able to operate from aircraft carriers, advanced bases, and expeditionary airfields.

- Be able to deploy or conduct extended range operations employing aerial refueling.

History: Operation Desert Storm in 1991 was the operational proving ground for the F/A-18A/C. Six single-seat F/A-18A/C squadrons deployed to SWA to participate in combat operations. These squadrons flew in excess of 4600 sorties for a total of 8864 hours while experiencing no combat losses.

Description: The Marine Corps F/A-18A/C/CN strike fighter multi-mission aircraft was designed to replace the F-4 Phantom. The F/A-18A/C/CN Hornet is missionized for traditional fighter, attack, and close air support roles through selection of external pods/equipment to accomplish specific mission objectives. Any aircraft can quickly be configured to perform either fighter or attack missions, or both, thus providing the Marine Air Ground Task Force (MAGTF) commander more flexibility in employing his tactical aircraft in a rapidly changing scenario. Marine F/A18s may be land-based from prepared airfields, or they can operate from expeditionary airfields (EAF). They may also be sea-based, operating from the decks of Navy aircraft carriers.

AV-8B Harrier II

Function: The mission of the VMA STOVL squadron is to attack and destroy surface and air targets, to escort helicopters, and to conduct other such air operations as may be directed. Specific tasks of the AV-8B HARRIER II include:

- Conduct close air support using conventional and specific weapons.
- Conduct deep air support, to include armed reconnaissance and air interdiction, using conventional and specific weapons.
- Conduct offensive and defensive antiair warfare. This includes combat air patrol, armed escort missions, and offensive missions against enemy ground-to-air defenses, all within the capabilities of the aircraft.
- Be able to operate and deliver ordnance at night and to operate under instrument flight conditions.
- Be able to deploy for extended operations employing aerial refueling.
- Be able to deploy to and operate from carriers and other suitable seagoing platforms, advanced bases, expeditionary airfields, and remote tactical landing sites.

History: Operation Desert Storm in 1991 was highlighted by expeditionary air operations performed by the AV-8B. The Harrier II was the first Marine Corps tactical strike platform to arrive in theater, and subsequently operated from various basing postures. Three squadrons, totaling 60 aircraft, and one six-aircraft detachment operated ashore from an expeditionary airfield, while one squadron of 20 aircraft operated from a sea platform. During the ground war, AV-8Bs were based as close as 35 nautical miles (40.22 miles) from the Kuwait border, making them the most forward deployed tactical strike aircraft in theater. The AV-8B flew 3,380 sorties for a total of 4,083 flight hours while maintaining a mission capable rate in excess of 90 percent. Average turnaround time during the ground war surge rate flight operations was 23 minutes.

Description: The AV-8B V/STOL strike aircraft was designed to replace the AV-8A and the A-4M light attack aircraft. The Marine Corps requirement for a V/STOL light attack force has been well documented since the late 1950s. Combining tactical mobility, responsiveness, reduced operating cost and basing flexibility, both afloat and ashore, V/STOL aircraft are particularly well-suited to the special combat and expeditionary requirements of the Marine Corps. The AV-8BII+ features the APG-65 Radar common to the F/A-18, as well as all previous systems and features common to the AV-8BII.

MiG-25 Foxbat

Function: High speed, high altitude strategic bomber interceptor.

History: Designed in 1962 as a purpose built interceptor to combat the American XB-70 Valkyrie supersonic strategic bomber as well as other high altitude, high speed threats, the MiG-25, was and offically still is, the fastest production fighter aircraft ever built. Possessing a rudimentary yet powerful long range missile guidance radar and completely lacking in air combat maneuverability, the Foxbat relies on ground control radars for guidance and its incredable speed to rapidly close in on and engage threat aircraft.

Although the XB-70 was eventually dropped by the U.S. Air Force, production of the MiG-25 continued, with a reconnosance variant, the MiG-25R, entering service in 1968 and a bomber variant, the MiG-25RB, and a fighter variant, the MiG-25P, being introduced in 1970. The latest version of the Foxbat, the MiG-25PD, incorperates improved engines and fire control radar, and is still in service with the Russian Airforce and being produced for export.

MiG-29 Fulcrum-A

Function: High speed, high altitude, long range interceptor.

Description: Designed in 1972 to replace the aging MiG-21 and MiG-23, the Fulcrum represented a revolutionary devlopement in Soviet fighter aircraft performance. Though lacking the sophisticated electronics and "fly-by-wire" systems of contemporary Western aircraft like the American F-16 Falcon and the F-15 Eagle, the MiG-29's agility and maneuverability make it their equal in term of performance. In addition, the MiG-29 incorperates a unique forward looking infrared target aquisition system which allows the Fulcrum to aquire and engage targets with heat seeking missiles or its internally mounted cannon without being detected by radar-detecting threat warning recievers. To take advantage of the MiG-29's incredable turning ability, the pilot is equiped with a helmet mounted target designation reticle which can be used to designate and engage targets outside of the fighter's forward plane of travel.

Entering service in 1984 as the Fulcrum-A, the current production model is the Fulcrum-C, which incorperates a redesigned fuselage and increased internal fuel capacity.

MiG-31 Foxhound

Function: High speed, high altitude, long range interceptor.

Description: Developed as an improved MiG-25 (the original prototype was based on a converted MiG-25MP), the Foxhound was designed to improve the range, low altitude speed, and electronic performance and capabilities of the earlier interceptor. As such, the MiG-31 utilizes larger engines and air intakes, extended exhaust nozzles, a strengthened airframe (to improve low altitude supersonic performance) and a phased array radar capable of tracking ten separate targets out to 75 miles (120 km) and engaging up to four simultaniously. Additionally, the MiG-31 incorperates an additional crewmember who serves as the weapon systems operator.

Su-27 Flanker-B

Function: High performance air combat and air superiority fighter.

History: Developed in the late 1960s as a dedicated air superiority fighter, the Flanker combines the maneuverability of the MiG-29 Fulcrum with the precision "fly-by-wire" flight controls found on Western fighters as well as an incrediable payload of ten Air to Air Missiles (AAM). Entering service in 1984, the basic Su-27 design has produced a number of variants, including the Su-27IB (or Su-34), a side by side tandem seat tactical fighter bomber similar in function to the American FB-111 Aardvark, and the Su-27UB Flanker-C (or Su-30) another tandem designed used as a long range interceptor and trainer. Additionally, the Su-27 has been converted for use on Russian aircraft carriers as the Su-27K (or Su-33) which incorperates strengthined landing gear, folding wings, a retractable in-flight refueling probe, an arrestor hook assembly, and movable forward mounted canards.

Though currently in service with the Russian Airforce and available for export, the Su-27 is being replaced by the much improved Su-35 and the vectored thrust Su-37.

Su-35 Flanker

Function: Multi role air superiority, ground attack fighter.

Description: Developed as a variant to the Su-27 Flanker B, the Su-35 is an improved version of the earlier aircraft, incorperating many of the new systems found on the Su-34 strike aircraft. These improvements include improved offensive and defensive avionics, movable forward mounted canards for increased maneuverability, an advanced pulse doppler pased array radar in the nose as well as a rearward facing radar capqable of detecting, tracking, and directing R-73 or R-77 AAMs at persuing enemy aircraft.

Su-37 Flanker

Function: Multi role air superiority, ground attack fighter.

Description: Developed as an improved version of the basic Su-27 Flanker designed, the Su-37 is based on the Su-35 airframe but with thrust vectoring nozzles to give it unsurpassed maneuverability. In addition to providing more power than previous engines, the engines on the Su-37 utilize steerable nozzles which can vector the engine thrust through +/- 15 degrees of travel in the vertical axis. This thrust vectoring is fully intigrated with the aircraft's flight control systems, and requires no input or manipulation by the pilot. In the event of a system failure, an emergency system will return the nozzles to their normal position. Other modifications to the Su-37 include improved offensive and defensive avionics, an improved pulse doppler phased array radar in the nose as well as the rearward facing radar already present on the Su-34 and 35.

(c) Copyright 2001 Abdur Rahim