Powerplant and Range
The MiG-29 has two widely spaced Klimov RD-33 turbofan engines, each rated at 50.0 kN (11,240 lbf) dry and 81.3 kN (18,277 lbf) 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. 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.
The MiG-29 has a ferry range of 1,500 km without external fuel tanks, and 2,100 km with one external tank. The internal fuel capacity of the original MiG-29B is 4,365 litres distributed between six internal fuel tanks, four in the fuselage and one in each wing. 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.
Famous quotes containing the word range:
“The Canadians of those days, at least, possessed a roving spirit of adventure which carried them further, in exposure to hardship and danger, than ever the New England colonist went, and led them, though not to clear and colonize the wilderness, yet to range over it as coureurs de bois, or runners of the woods, or, as Hontan prefers to call them, coureurs de risques, runners of risks; to say nothing of their enterprising priesthood.”
—Henry David Thoreau (1817–1862)