Military aviation
JAS-39 Gripen

JAS-39 Gripen

The multi-purpose JAS-39 Grippen combat aircraft of SAAB / British Aerospace is a single-engine monoplane with a simple deltoid wing and a fully adjustable floating slat - the Duck aerodynamic configuration (Horizontal rudders are made in front of the wing).

The aircraft is characterized by the natural (deliberate) no wind resistance, to achieve high maneuverability. Through-wire control system (Fly-by-Wire) from three-channel redundant system ensures the aerodynamic resistance of the aircraft in flight. Also in emergency situations provided analog system backup management.

Since the aircraft was developed in Sweden, where a limited number of plains, for this reason, the aircraft has excellent take-off and landing characteristics, allowing you to take off and land on short runways. Brake pads with slats provide adequate aerodynamic braking during landing.

About 30% of the airframe is made of composite materials. The horizontal surface of the wing control, the slats are made of carbon fiber. The fuselage is made of aluminum alloy, an alloy of titanovovogo wings.

jas 39

Engine JAS-39

The JAS-39 uses an RM12 propulsion unit as its engine. This engine is a turbojet bypass engine with afterburner (TRDDF) manufactured by Volvo Aero Corporation. This is a modified version of the engine of the American company General Electric F-404-400, which is used in the American F / A-18. RM12 from F404 differs in the increased bollard. 54kN in RM12 versus 48,9kN in F404 without afterburner and 80,5kN against 78,7kN with afterburner, respectively. Other differences are greater resistance to swallowing foreign objects and higher reliability, so the engine meets safety criteria for use as a single aircraft engine. Engine operation, including automatic thrust control, depending on the flight mode is controlled by a special computer, ensuring maximum engine performance, which makes it possible to adapt to specific conditions with maximum efficiency. The JAS-39C / D uses a modified Volvo Aero RM12UP engine.

Avionics JAS-39

The aircraft is equipped with a pulse Doppler radar PS-05 / A, operating in the frequency range 8-10 GHz. Radiated power of the radar 1 kW with the ability to detect targets to 120 km. The radar can automatically track several targets in the upper and lower hemispheres, on the ground, on the water and in the air, and in all weather conditions. It can also simultaneously direct up to 4 air-to-air missiles at 4 various targets.

Electronic equipment is characterized by a high degree of integration and automation of many functions, allowing the aircraft to conduct combat operations in all weather conditions, day and night.

Armament JAS-39

The main armament is the 27-mm air gun Mauser BK27 with a rate of fire from 1100 to 1700 shots per minute with a stock of 120 cartridges (not available in the JAS 39B double model). JAS-39 has 8 suspension points and is capable of carrying a combat load of a total weight of 4200 kg. The export version of JAS-39NG has 10 suspension points. The carrying capacity in this version is increased to 5200 kg. In the class of air-to-air missiles, it is capable of carrying to the 6 missiles such as AIM-9 Sidewinder or 4 missiles AIM-120 AMRAAM. In the air-to-surface class, the aircraft is capable of carrying up to the 4 missiles AGM-65 Maverick or to 2 long-range missiles TAURUS KEPD 350 / 150, designed to defeat high-security targets. Also JAS-39 is capable of carrying up to two anti-ship missiles RBS-15, developed by the Swedish firm SAAB Bofors Dynamics.

Bombings armament includes up to 4 guided bombs, laser-guided GBU-12 PAVEWAY II or up to 8 laser-guided bombs without Mark 82. It is also capable of carrying and cluster bombs.

Grippen is in service with the following countries: Sweden, Hungary to 2006 years old, United Kingdom, Czech Republic, Thailand, South Africa to 2007 years

jas 39

Technical and tactical information:

Manufacturer: SAAB / BAE Systems (Sweden / UK)

History: development began in 1982, the first flight in 9 dekabrya1987, the latest flight tests completed in December 1996 years. With 1997, he began to enter the Swedish Air Force

Dimensions: 14,1 meter length, height 4,5 meters

Wingspan: 8,4 meters

Empty weight: 5700 kg

Maximum takeoff weight: 14000 kg.

Power point: jet engine Volvo Aero RM 12 80 with traction kN.

Link: 54 kN

Thrust in afterburner: 80,5 kN

full speed: 2 Mach (2400 kilometers per hour)

Rate of climb: 4700 meters per minute

Ferry range: 3200 km. (with drop tanks)

Combat radius: 800 km.

The maximum ceiling: 15452 meters

Crew: standard ofDean pilot, but there is also a double version (JAS-39B).

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