The F-28A SparrowHawk is the first fully-production fighter aircraft of the Harpia Defence System Co. and the winner of the New Multirole Light Fighter Aircraft Program of the Royal Krakabloan Air Force. The F-28 is a dedicated twin-seat, single engine, subsonic, multirole aircraft designed to be agile, affordable and easy-to-maintain. It can carries all the NATO-certified ordinance and is capable of day and night operations, under any weather conditions even in extreme environments.
The F-28 is capable of operating at high subsonic speed and low altitude, by day or night, and if necessary, from bases with poorly equipped or damaged runways. It possesses a low infrared (IR) signature and a reduced radar-equivalent cross-section to help prevent detection, while low vulnerability of structure and systems aid survivability and a compliment of integrated electronic countermeasures (ECM), air-to-air missiles and wing-mounted guns provide self-defence capabilities. Key features that were reportedly emphasised in the design process of the new aircraft were accessibility and survivability.
The F-28A SparrowHawk has a conventional shoulder-winged monoplane. It is composed primarily of new generation aluminium alloys and manufactured using carbon fibre composite materials in the 75% of the aircraft. For its size, a large proportion of the F-28's internal space is allocated to avionics and onboard computer systems, both the navigation and attack systems are computerized. For accessibly and ease of maintenance, all avionics are installed directly in bays beneath the cockpit in a manner in which they can be worked upon at ground level without the use of support platforms.
Drawing on experience from other succesful multirole fighters, the F-28 is equipped with a hybrid flight control system; a fly-by-wire control system is employed to operate flight control surfaces such as the spoilers, rudder and variable incidence tailplane, while the ailerons and elevators are actuated via a dual-redundant hydraulic system. Manual reversion is provided for the ailerons, elevator and rudder to allow the aircraft to be flown even in the event of complete hydraulic failure; either control system can act independent of one another. The wing is blended within the engine intakes and thus improving take-off and landing performance as well as manoeuvrability during flight.
It is equiped with the APG-68 radar, an Integrated Targeting System mounted underneath the radome and a High Definition Optronic System located in the underside fuselage. It has Tactical Data Link capability and it can loitter for a long period of time in the battlefield due to its air-refueling probe system.
-----------------------------------------
CONTROLS
AG1 - Centerline Fueltank Jettison
AG2 - Taxi and Landing Lights
AG3 - Chute Deploy
AG5 - Weapons Jettison
VTOL down - AirBrake operation
------------------------------------------------------