Fighter Jets Military
The JF-17 Thunder is a lightweight, single-engine, multi-role combat aircraft developed jointly by the Pakistan Aeronautical Complex (PAC) and the Chengdu Aircraft Corporation (CAC) of China. It was designed to replace the A-5C, F-7P/PG, Mirage III, and Mirage V combat aircraft in the Pakistan Air Force. The JF-17 can be used for multiple roles, including interception, ground attack, anti-ship, and aerial reconnaissance. Its designation "JF-17" by Pakistan is short for "Joint Fighter-17", while the designation and name "FC-1 Xiaolong" by China means "Fighter China-1 Fierce Dragon".
The JF-17 can deploy diverse ordnance, including air-to-air and air-to-surface missiles, and a 23 mm GSh-23-2 twin-barrel autocannon. Powered by a Guizhou WS-13 or Klimov RD-93 afterburning turbofan, it has a top speed of Mach 1.8. The JF-17 is to become the backbone of the Pakistan Air Force (PAF), complementing the General Dynamics F-16 Fighting Falcon at half the cost. The PAF inducted its first JF-17 squadron in February 2010. In 2015 Pakistan produced 16 JF-17s. As of 2016, Pakistan is believed to have the capacity to produce 25 JF-17 per year. 58% of the airframe is Pakistani and 42% Chinese/Russian-origin. As of December 2016 Pakistan Aeronautical Complex has manufactured 70 jets in the country for use by the Pakistan Air Force of the Block 1 type, and 33 jets of the Block 2 type.
The Pakistan Air Force plans, by 2017, to induct a twin-seater version known as the JF-17B for both enhanced operational capability and training. Preparations for a more advanced and technologically sophisticated block III version of the aircraft are underway and the AESA radar, KJ-7A, has been developed, which can track 15 targets and engage 4 targets simultaneously.
Since its induction in 2011, the JF-17 Thunder has accumulated 19,000 hours of operational flight. The JF-17 has seen active military service as it is used by the Pakistan Air Force to bomb militant positions in North Waziristan, using both unguided munitions and guided missiles for precision strike capability.
The air frame is of semi-monocoque structure constructed primarily of aluminum alloys. High strength steel and titanium alloys are partially adopted in some critical areas. The air frame is designed for a service life of 4,000 flight hours or 25 years, the first overhaul being due at 1,200 flight hours. Block 2 JF-17s incorporate greater use of composite materials in the air frame to reduce weight. The retractable undercarriage has a tricycle arrangement with a single steerable nose-wheel and two main undercarriages. The hydraulic brakes have an automatic anti-skid system. The position and shape of the inlets is designed to give the required airflow to the jet engine during maneuvers involving high angles of attack.
The mid-mounted wings are of cropped-delta configuration. Near the wing root are the LERX, which generate a vortex that provides extra lift to the wing at high angles of attack encountered during combat maneuvers. A conventional tri-plane empennage arrangement is incorporated, with all-moving stabilators, single vertical stabiliser, rudder, and twin ventral fins. The flight control system (FCS) comprises conventional controls with stability augmentation in the yaw and roll axis and a digital fly-by-wire (FBW) system in the pitch axis. The leading edge slats/flaps and trailing edge flaps are automatically adjusted during manoeuvring to increase turning performance. The FCS of serial production aircraft reportedly have a digital quadruplex (quad-redundant) FBW system in the pitch axis and a duplex (dual-redundant) FBW system in the roll and yaw axis. More details
The Pakistan Air Force plans, by 2017, to induct a twin-seater version known as the JF-17B for both enhanced operational capability and training. Preparations for a more advanced and technologically sophisticated block III version of the aircraft are underway and the AESA radar, KJ-7A, has been developed, which can track 15 targets and engage 4 targets simultaneously.
Since its induction in 2011, the JF-17 Thunder has accumulated 19,000 hours of operational flight. The JF-17 has seen active military service as it is used by the Pakistan Air Force to bomb militant positions in North Waziristan, using both unguided munitions and guided missiles for precision strike capability.
The air frame is of semi-monocoque structure constructed primarily of aluminum alloys. High strength steel and titanium alloys are partially adopted in some critical areas. The air frame is designed for a service life of 4,000 flight hours or 25 years, the first overhaul being due at 1,200 flight hours. Block 2 JF-17s incorporate greater use of composite materials in the air frame to reduce weight. The retractable undercarriage has a tricycle arrangement with a single steerable nose-wheel and two main undercarriages. The hydraulic brakes have an automatic anti-skid system. The position and shape of the inlets is designed to give the required airflow to the jet engine during maneuvers involving high angles of attack.
