MiG-29 (disambiguation)
The Mikoyan MiG-29Russian is a 4th-generation jet fighter aircraft designed in the Soviet Union for an air superiority role. Developed in the 1970s by the Mikoyan design bureau, it entered service with the Soviet Air Force in 1983, and remains in use by the Russian Air Force as well as in many other nations. The NATO name "Fulcrum" was unofficially used by Soviet pilots in service. The MiG-29 along with the Su-27 were developed to counter new American fighters such as the F-15 Eagle, and the F-16 Fighting Falcon.
In 1969 the Soviet Union learned of the U.S. Air Force's "F-X" program, which resulted in the F-15 Eagle. The Soviet leadership soon realized that the new American fighter would represent a serious technological advantage over existing Soviet fighters. What was needed was a better-balanced fighter with both good agility and sophisticated systems. In response, the Soviet General Staff issued a requirement for a Perspektivnyy Frontovoy Istrebitel (PFI, literally "Perspective Frontline Fighter", roughly "Advanced Frontline Fighter"). Specifications were extremely ambitious, calling for long range, good short-field performance (including the ability to use austere runways), excellent agility, Mach 2+ speed, and heavy armament. The aerodynamic design for the new aircraft was largely carried out by the Russian aerodynamics institute TsAGI in collaboration with the Sukhoi design bureau.
Design
Powerplant
The MiG-29 has two widely spaced Klimov RD-33 turbofan engines, each rated at 50.0 kN (11,240 lb) dry and 81.3 kN (18,277 lb) in afterburner. The space between the engines generates lift, thereby reducing effective wing loading, to improve maneuverability. The engines are fed through wedge-type intakes fitted under the leading-edge extensions (LERXs), which have variable ramps to allow high-Mach speeds. As an adaptation to rough-field operations, the main air inlet can be closed completely and alter using the auxiliary air inlet on the upper fuselage for takeoff, landing and low-altitude flying, preventing ingestion of ground debris (foreign object damage [FOD]). Thereby the engines receive air through louvers on the LERXs which open automatically when intakes are closed. However the latest variant of the family, the MiG-35, eliminated these dorsal louvers, and adopted the mesh screens design in the main intakes, similar to those fitted to the Su-27.
Range and fuel system
The internal fuel capacity of the original MiG-29B is only 4,365 litres distributed between six internal fuel tanks, four in the fuselage and one in each wing. As a result, the aircraft has a very limited range, in line with the original Soviet requirements for a point-defense fighter. For longer flights, this can be supplemented by a 1,500-litre (330 Imp gal, 395 US gal) centreline drop tank and, on later production batches, two 1,150-litre (253 Imp gal, 300 US gal) underwing drop tanks. In addition, a small number have been fitted with port-side inflight refueling probes, allowing much longer flight times by using a probe-and-drogue system. Some MiG-29B airframes have been upgraded to the "Fatback" configuration (MiG-29 9-13), which adds a dorsal-mounted internal fuel tank. Advanced variants, such as the MiG-35, can be fitted with a conformal fuel tank on the dorsal spine, although none of them have yet entered service.
Cockpit
The cockpit features a conventional centre stick and left hand throttle controls. The pilot sits in a Zvezda K-36DM zero-zero ejection seat which has had impressive performance in emergency escapes.
The cockpit has conventional dials, with a head-up display (HUD) and a Shchel-3UM helmet mounted display, but no HOTAS ("hands-on-throttle-and-stick") capability. Emphasis seems to have been placed on making the cockpit similar to the earlier MiG-23 and other Soviet aircraft for ease of conversion, rather than on ergonomics. Upgraded models introduce "glass cockpits" with modern liquid-crystal (LCD) multi-function displays (MFDs) and true HOTAS.
Sensors
The baseline MiG-29B has a Phazotron RLPK-29 (Radiolokatsyonnui Pritselnui Kompleks) radar fire control system (FCS) which includes the N019 (Sapfir 29; NATO: 'Slot Back') look-down/shoot-down coherent pulse-Doppler radar and the Ts100.02-02 digital computer. Tracking range against a fighter-sized target was only about 70 km (38 nmi) in the frontal aspect and 35 km (19 nmi) in the rear aspect. Range against bomber-sized targets was roughly double. Ten targets could be displayed in search mode, but the radar had to lock onto a single target for semi-active homing (SARH). The signal processor had trouble with ground clutter, reducing ranges in the look-down mode. The radar was also susceptible to jamming. These problems meant the MiG-29 was not able to reliably utilize the new Vympel R-27R (NATO: AA-10 "Alamo") long-range SARH missile at its maximum ranges.
In 1969 the Soviet Union learned of the U.S. Air Force's "F-X" program, which resulted in the F-15 Eagle. The Soviet leadership soon realized that the new American fighter would represent a serious technological advantage over existing Soviet fighters. What was needed was a better-balanced fighter with both good agility and sophisticated systems. In response, the Soviet General Staff issued a requirement for a Perspektivnyy Frontovoy Istrebitel (PFI, literally "Perspective Frontline Fighter", roughly "Advanced Frontline Fighter"). Specifications were extremely ambitious, calling for long range, good short-field performance (including the ability to use austere runways), excellent agility, Mach 2+ speed, and heavy armament. The aerodynamic design for the new aircraft was largely carried out by the Russian aerodynamics institute TsAGI in collaboration with the Sukhoi design bureau.
Design
Powerplant
The MiG-29 has two widely spaced Klimov RD-33 turbofan engines, each rated at 50.0 kN (11,240 lb) dry and 81.3 kN (18,277 lb) in afterburner. The space between the engines generates lift, thereby reducing effective wing loading, to improve maneuverability. The engines are fed through wedge-type intakes fitted under the leading-edge extensions (LERXs), which have variable ramps to allow high-Mach speeds. As an adaptation to rough-field operations, the main air inlet can be closed completely and alter using the auxiliary air inlet on the upper fuselage for takeoff, landing and low-altitude flying, preventing ingestion of ground debris (foreign object damage [FOD]). Thereby the engines receive air through louvers on the LERXs which open automatically when intakes are closed. However the latest variant of the family, the MiG-35, eliminated these dorsal louvers, and adopted the mesh screens design in the main intakes, similar to those fitted to the Su-27.
Range and fuel system
The internal fuel capacity of the original MiG-29B is only 4,365 litres distributed between six internal fuel tanks, four in the fuselage and one in each wing. As a result, the aircraft has a very limited range, in line with the original Soviet requirements for a point-defense fighter. For longer flights, this can be supplemented by a 1,500-litre (330 Imp gal, 395 US gal) centreline drop tank and, on later production batches, two 1,150-litre (253 Imp gal, 300 US gal) underwing drop tanks. In addition, a small number have been fitted with port-side inflight refueling probes, allowing much longer flight times by using a probe-and-drogue system. Some MiG-29B airframes have been upgraded to the "Fatback" configuration (MiG-29 9-13), which adds a dorsal-mounted internal fuel tank. Advanced variants, such as the MiG-35, can be fitted with a conformal fuel tank on the dorsal spine, although none of them have yet entered service.
Cockpit
The cockpit features a conventional centre stick and left hand throttle controls. The pilot sits in a Zvezda K-36DM zero-zero ejection seat which has had impressive performance in emergency escapes.
The cockpit has conventional dials, with a head-up display (HUD) and a Shchel-3UM helmet mounted display, but no HOTAS ("hands-on-throttle-and-stick") capability. Emphasis seems to have been placed on making the cockpit similar to the earlier MiG-23 and other Soviet aircraft for ease of conversion, rather than on ergonomics. Upgraded models introduce "glass cockpits" with modern liquid-crystal (LCD) multi-function displays (MFDs) and true HOTAS.
Sensors
The baseline MiG-29B has a Phazotron RLPK-29 (Radiolokatsyonnui Pritselnui Kompleks) radar fire control system (FCS) which includes the N019 (Sapfir 29; NATO: 'Slot Back') look-down/shoot-down coherent pulse-Doppler radar and the Ts100.02-02 digital computer. Tracking range against a fighter-sized target was only about 70 km (38 nmi) in the frontal aspect and 35 km (19 nmi) in the rear aspect. Range against bomber-sized targets was roughly double. Ten targets could be displayed in search mode, but the radar had to lock onto a single target for semi-active homing (SARH). The signal processor had trouble with ground clutter, reducing ranges in the look-down mode. The radar was also susceptible to jamming. These problems meant the MiG-29 was not able to reliably utilize the new Vympel R-27R (NATO: AA-10 "Alamo") long-range SARH missile at its maximum ranges.
Gyanendra Panday
[III Year]
[III Year]
