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Sunday, November 30, 2014
Russian Pilot Launching Air Brakes in mid air - MIG 29 Fulcrum
Russian Pilot Launching Air Brakes in mid air - MIG 29 - Supermaneuverability is the ability of aircraft to have control and do maneuvers in situations and in the ways exceeding that which is possible by pure aerodynamic mechanisms.[citation needed] This ability was first introduced in the Russian Sukhoi Su-27 and Mikoyan MiG-29 fighter aircraft in the 1980s, which has since become a standard in their advanced 4th and 5th generation aircrafts. There has been some conjectures, but the mechanism behind the supermaneuverability of the Russian aircrafts is still unknown. However, post-stall analyses are increasingly used in recent years to advance maneuverability via the use of thrust vectoring engine nozzles.[1] As the result of such studies, United States produced the Lockheed Martin F-22 Raptor, which is the first non-Russian supermaneuverable aircraft.
Russian emphasis on close-range slow-speed supermaneuverability runs counter to Western Energy–maneuvrability theory, which favors retaining kinetic energy to control the range of the engagement.[2]
Traditional aircraft maneuvering is accomplished by altering the flow of air passing over the control surfaces of the aircraft—the ailerons, elevators, flaps, air brakes and rudder. Some of these control surfaces can be combined—such as in the "ruddervators" of a V-tail configuration—but the basic properties are unaffected. When a control surface is moved to present an angle to the oncoming airflow, it alters the airflow around the surface, changing its pressure distribution, and thus applying a pitching, rolling, or yawing moment to the aircraft. The angle of control surface deflection and resulting directional force on the aircraft are controlled both by the pilot and the aircraft's inbuilt control systems to maintain the desired attitude, such as pitch, roll and heading, and also to perform aerobatic maneuvers that rapidly change the aircraft's attitude. For traditional manoeuvring control to be maintained, the aircraft must maintain sufficient forward velocity and a sufficiently low angle of attack to provide airflow over the wings (maintaining lift) and also over its control surfaces. As airflow decreases so does effectiveness of the control surfaces and thus the maneuverability. On the other hand, if the angle of attack exceeds its critical value, the airplane will stall. Pilots are trained to avoid stalls during aerobatic maneuvering and especially in combat, as a stall can permit an opponent to gain an advantageous position while the stalled aircraft's pilot attempts to recover.
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Friday, November 28, 2014
Russian Mig 29 Afterburner BRUTAL SOUND
Russian Mig 29 Afterburner BRUTAL SOUND - An afterburner (or a reheat) is an additional component present on some jet engines, mostly military supersonic aircraft. Its purpose is to provide an increase in thrust, usually for supersonic flight, takeoff and for combat situations. Afterburning is achieved by injecting additional fuel into the jet pipe downstream of (i.e. after) the turbine. The advantage of afterburning is significantly increased thrust; the disadvantage is its very high fuel consumption and inefficiency, though this is often regarded as acceptable for the short periods during which it is usually used.
Pilots can activate and deactivate afterburners in-flight, and jet engines are referred to as operating wet when afterburning is being used and dry when not.[1] An engine producing maximum thrust wet is at maximum power, while an engine producing maximum thrust dry is at military power.
Video source: youtube.com/rapidspotter
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Thursday, November 27, 2014
Russian Pilot Skills - Mig 29 Thrust Vectoring Hovering
Russian Pilot Skills - Mig 29 Vectored Thrust Hovering - Thrust vectoring, also thrust vector control or TVC, is the ability of an aircraft, rocket, or other vehicle to manipulate the direction of the thrust from its engine(s) or motor in order to control the attitude or angular velocity of the vehicle.
In rocketry and ballistic missiles that fly outside the atmosphere, aerodynamic control surfaces are ineffective, so thrust vectoring is the primary means of attitude control.
For aircraft, the method was originally envisaged to provide upward vertical thrust as a means to give aircraft vertical (VTOL) or short (STOL) takeoff and landing ability. Subsequently, it was realized that using vectored thrust in combat situations enabled aircraft to perform various maneuvers not available to conventional-engined planes. To perform turns, aircraft that use no thrust vectoring must rely on aerodynamic control surfaces only, such as ailerons or elevator; craft with vectoring must still use control surfaces, but to a lesser extent.
In missile literature originating from Russian sources,[1] thrust vectoring is often referred as "gas-dynamic steering" or "gas-dynamic control".
Most currently operational vectored thrust aircraft use turbofans with rotating nozzles or vanes to deflect the exhaust stream. This method can successfully deflect thrust through as much as 90 degrees, relative to the aircraft centerline. However, the engine must be sized for vertical lift, rather than normal flight, which results in a weight penalty. Afterburning (or Plenum Chamber Burning, PCB, in the bypass stream) is difficult to incorporate and is impractical for take-off and landing thrust vectoring, because the very hot exhaust can damage runway surfaces. Without afterburning it is hard to reach supersonic flight speeds. A PCB engine, the Bristol Siddeley BS100, was cancelled in 1965.
Tiltrotor aircraft vector thrust via rotating turboprop engine nacelles. The mechanical complexities of this design are quite troublesome, including twisting flexible internal components and driveshaft power transfer between engines. Most current tiltrotor designs feature 2 rotors in a side-by-side configuration. If such a craft is flown in a way where it enters a vortex ring state, one of the rotors will always enter slightly before the other, causing the aircraft to perform a drastic and unplanned roll.
The pre-World War 1, British Army airship Delta, fitted with swiveling propellers
Thrust vectoring is also used as a control mechanism for airships. An early application was the British Army airship Delta, which first flew in 1912.[6] It was later used on HMA (His Majesty's Airship) No. 9r, a British rigid airship that first flew in 1916[7] and the twin 1930s-era U.S. Navy rigid airships USS Akron and USS Macon that were used as airborne aircraft carriers, and a similar form of thrust vectoring is also particularly valuable today for the control of modern non-rigid airships. In this use, most of the load is usually supported by buoyancy and vectored thrust is used to control the motion of the aircraft. But, designs have recently been proposed, especially for Project WALRUS, where a significant portion of the weight of the craft is supported by vectored thrust. The first airship that used a control system based on pressurized air was Enrico Forlanini's Omnia Dir in 1930s.
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Monday, November 24, 2014
Brutal Madness Sound Mig 29 Russian Air Breaker
Brutal Madness Sound Mig 29 Russian Air Breaker - The Klimov RD-33 is a turbofan engine for a lightweight fighter jet that is the primary engine for the Mikoyan MiG-29. It was developed in OKB-117 led by S. P. Izotov (now OAO Klimov) from 1968 with production starting in 1981. Previous generations of Russian supersonic fighters such as the MiG-21 and MiG-27 used turbojets, but western fighters such as the F-111 and F-4K introduced the use of afterburning turbofans in the 1960s which were more efficient. The RD-33 was the first afterburnering turbofan engine produced by the Klimov company of Russia in the 8,000 to 9,000 kilograms-force (78,000 to 88,000 N; 18,000 to 20,000 lbf) thrust class. It features a modular twin-shaft design with individual parts that can be replaced separately and has a good tolerance to the environment. The RD-33 is simple to maintain and retains good performance in challenging environments.[1]
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Monday, November 17, 2014
Russian Knights - Mig 29 - TOP GUN pilots
Russian Knights - Mig 29 - TOP GUN pilots - The Russian Knights (Russian: Русские Витязи, Russkiye Vityazi) is an aerobatic demonstration team of the Russian Air Force. Originally formed on April 5, 1991 at the Kubinka Air Base as a team of six Sukhoi Su-27s, the team was the first to perform outside the Soviet Union in September 1991 when they toured the United Kingdom. On December 12, 1995, disaster struck as three team jets flew in-formation into a mountainside near Cam Ranh, Vietnam during approach while en route to home from a Malaysian airshow during adverse weather conditions. The team now performs with four Su-27Ps and two Su-27UBs.
On August 16, 2009, two Su-27s rehearsing acrobatic maneuvers collided near Moscow, killing one pilot and sending the jets crashing into nearby vacation homes. The dead pilot was identified as the Russian Knights' commander, Guards Colonel Igor Tkachenko, a decorated air force officer.[2]
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video source: rapidspotter
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Tuesday, November 4, 2014
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