Myeong and Lyang MyL-27

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MyL-27
File:MyL-21 side view.png
MyL-27
Role Multirole Air superiority fighter
National origin  Anikatia
Manufacturer Myeong and Lyang Design Bureau
First flight 15 October 2006
Introduction 1 May 2010
Status In production
Primary user  Anikatia
Produced 2006–present
Number built 30+
Unit cost
MyL-27SM: UR$65 million (flyaway cost, 2013)

The Myeong and Lyang MyL-27 (CDI reporting name: Fathom-E) is a twin-engine, all-weather multirole fighter aircraft developed by Myeong and Lyang Design Bureau to gain and maintain air superiority in aerial combat. It is heavily upgraded derivatives of the MyL-21 'Fathom'. The MyL-27 features an upgraded avionic suite and fire-control system, but its most notable additions of canards and thrust vectoring nozzles.

Design and development

Following the end of the Cold War and fall of the DSRA, defence spending was cut as the economy underwent major crisis and restructuring. This led to funding shortages for fifth-generation Myeong and Lyang MyL-23 and far longer development period. As a result Myeong and Lyang Sukhoi a project to produce a fighter to bridge the gap until the new fifth-generation MyL-23 would arrive. The project's aim was a deep modernisation of the MyL-21 airframe by incorporating several characteristics that would be implemented on the latest fifth-generation fighters.

While the MyL-27's basic design is superficially very close to the MyL-21 with the addition of the canards, the airframe, avionics, propulsion and weapons systems have been thoroughly overhauled. Technological advancements have produced more compact and lighter hardware, such as the radar, thrust vector control (TVC), and an advanced digital fly-by-wire system. Other changes from the MyL-21 include an all new glass cockpits. The construction made significant use of composites, including aluminium-lithium. Radar-absorbent material is applied to the engine inlets and the front stages of the engine compressor to halve the frontal radar cross-section (RCS); the canopy was also modified to deflect radar waves.

Cockpit

The MyL-27 features a glass cockpit with the pilot having two large 380 x 290 (15 x 11.5in) Nisikou NL-2724DS multi-function displays plus three smaller screens which includes a wide angle collimatory display on the windshield and a (152 mm x 152 mm) control and indication panel. The pilot sits in a Wallis-Thornton WTK-14EM zero-zero ejection seat inclined at 30° to improve pilot g-force tolerance which has had impressive performance in emergency escapes. The cockpit equipped with multi-function colour LCD screens along with a head-up display (HUD), a Svalov-1M2 helmet mounted display with increased and enchanced capability, and HOTAS ("hands-on-throttle-and-stick") capability. The aircraft has a fly by wire (FBW) with quadruple redundancy. Depending on the flight conditions, signals from the control stick position transmitter or the FCS may be coupled to the remote control amplifiers. These signals are combined with feedback signals fed by acceleration sensors and rate gyros. The resultant control signals are coupled to the high-speed electro-hydraulic actuators of the elevators, and rudders.

Avionics

The baseline MyL-27 are equipped with a AKI/RAL K10R-GX-M2 Active Electronically Scanned Array (AESA) radar which has 25 operating modes, including ground-mapping, Doppler beam-sharpening, ground moving target, sea target, and track-while-scan (TWS) for up to 30 aerial targets, and engage ten targets simultaneously in the attack mode. Also equiped within the avionics suite is an Arsanukayev Type 1098 central digital computer. The aircraft also features the Dietrich Osterhagen Electrics Limited ODEL-020QP electronic warfare suite built into the airframe, the suite comprises a reconnaissance system, detecting radiation from airborne and anti-aircraft radars, and a countermeasures component which deals with the most popular high-frequency wavebands used (Bands H and J). The Myl-27 is equiped with the RAL/RYK SDSA-124M self-defence sensor suite. The infrared missile approach warning system (MAV) has six sensors located on the front fuselage to provide all-around coverage. It can register the launch of a man-portable anti-aircraft missile from a distance of 10km (6 miles), an air-to-air missile from 30km (19 miles) and a large surface-to-air missile from 50km (31 miles). Two laser warning sensors are located on the sides of the front fuselage; they detect laser rangefindeers tracking the aircraft from up to 30km (19 miles) away. chaff/flare dispensers, fighter-to-fighter data link, and a precise inertial navigation system. A useful feature the MyL-27 is the Tagirbekov General Industries Tgk-75M, a combined laser rangefinder and IRST in an "eyeball" mount forward of the cockpit canopy. Additonally the aircraft can carry active jamming pods mounted on the cropped wing tips these pods enchance, the built-in electronic countermeasures (ECM) system`s capabilities in the medium wavebands (E to G). And a decoy launcher is mounted near the tail cone with 96 decoys of different kinds.

Powerplant

The MyL-27 is powered by a two Bulgakov K57 turbofan engine, the exact version of this propulsion system depending on the variant. However, the latest variants may utilise advanced variants with thrust vectoring control which give more thrust and a lower specific fuel consumption than earlier variants of the engines while also providing even greater maneuverability. The engine gives the MyL-27 supercruise capability or sustained supersonic speed without the use of afterburners.

Variants

MyL-27SM ("Fathom-E")
A 4++ highly advanced multirole variant, incorporates a reinforced airframe, improved avionics and radar, thrust-vectoring engines, and radar absorbing coatings to reduce radar signature.

Operators

Current

 Anikatia

Specifications (MyL-27SM)

3-view drawing of MyL-27

Data from Myeong and Lyang specifications[1]

General characteristics

  • Crew: One
  • Length: 21.9 m (72 ft) ()
  • Wingspan: 14.7 m (48 ft 3 in) ()
  • Height: 5.63 m (18.5 ft) ()
  • Empty weight: 15,780 kg (34,789 lb) ()
  • Loaded weight: 25,115 kg (55,369 lb) ()
  • Max. takeoff weight: 34,450 kg (75,949 lb) ()
  • Powerplant: 2 × Bulgakov K57-117 afterburning turbofan, Wet:137 kN (13,970 kgf, 30,799 lbf) ()Dry: Dry: 88 kN (8,981 kgf, 19,800 lbf) each

Performance

Armament

  • Guns: 1× 27 mm Esk-30-K1 cannon with 180 rounds
  • Hardpoint:12 hardpoints, consisting of 8 under-wing, 2 on the fuselage and 2 centre-line with a capacity of f 8,500 kg (18,739 lb) of weapons and fuel tanks, including:
  • Rockets:
    • S-25L laser-guided rocket
    • S-25 unguided rocket
    • B-8 unguided S-8 rocket pods
    • B-13 unguided S-13 rocket pods
  • Air-to-air missile
  • Air-to-surface missile
  • Bombs
    • Incendiary, bunker buster, high-explosive, laser-guided, nuclear, cluster and general purpose bombs up to 1,500 kg
    • Training bombs up to 1,500 kg
  • Others:
    • Countermeasures (Flares, Chaff)
    • Up to 3 external drop tanks (2× under-wing 1,500 litres, 1× under-fuselage 1,700 litres for extended range/loitering time)

Avionics

  • AKI/RAL K10R-GX-M2 Active Electronically Scanned Array (AESA) radar system
  • Tagirbekov General Industries Tgk-75M sophisticated multi-channel Infrared search and track (ISRT) sighting system
  • Rykovatia Weapon Systems Rtk-5QMP Datalink communications system
  • Dietrich Osterhagen Electrics Limited ODEL-020QP electronic warfare suite (ECM)
  • Rakovski Aeronautics and Rykovatia Weapon Systems RAL/RYK SDSA-124M self-defence sensor suite
  • Rakovski Aeronautics RAL-05KPG RWR

See also

References

  1. ↑ "Myeong and Lyang MyL-21 Multirole Fighter" ANKITEC., Retrieved: 22 November 2014.


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