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The Ryfg (Hawk) AH-01 is an attack helicopter developed by Haruspex Aerodynamics Design. It is designed primarily for anti-tank missions but can also fill a secondary role of air-to-air capability as well. Although foreign technologies are utilized, this is limited to hardware only. All software applicable to Ryfg AH-01 are completely indigenously developed by HAD on its own. Reportedly, the most time consuming part of the software engineering for Ryfg AH-01 was to develop all of the mathematic models needed for Ryfg AH-01. The adaptation of a more global military standard means that a varied type weaponry can be readily deployed on the Ryfg AH-01, and the HAD claims that all it needed was to add a module or interface to accomplish this. The ease of being compatible with multiple weaponry would also help to expand the export market of Ryfg AH-01.
The Ryfg(Hawk) AH-01 has a Rotorprop tail rotor which could rotate its axis through 90° to act both as a conventional anti-torque rotor in horizontal flight and as a pusher propeller, thereby transforming the Ryfg AH-01 into a compound aircraft in cruising flight.
The main-wheels are retractable, while the tailwheel is not. One of the most interesting features of this aircraft is the presence of speed brakes on the wing trailing edges, which can be used both as airbrakes and to improve manoeuvrability. In addition the main rotor blade tips are modified and given a sweep-back of 20°, to reduce vibration, stall speed and noise.
Ryfg AH-01 utilizes the HOTAS, and couples it with an augmented helmet display system which allow the pilot to control various systems using his line of sight, and to guide missiles by simply looking at the target.
Unlike previous HAD helicopters which had different navigational systems onboard independently, the navigational systems of Ryfg AH-01 are fully integrated, and these includes an optical fiber gyro. A radar altimeter currently installed on the Ryfg AH-01 is fully interchangeable with a laser altimeter. The Ryfg AH-01 has a pulse navigational radar which has weather and navigational capabilities, as well as incorporating ground mapping, terrain-avoidance and terrain following capabilities.
The onboard inertial navigation system (INS) is fully integrated with GPS/GLONASS system, and can utilize a variety of satellite navigation to improve its accuracy, the integrated GPS corrected INS is the only system that has been shown to the public at Runic Airshows and other defense exhibitions. Information is shared via secured data-link that provide real time and near real time information.
The electronic warfare (EW) system of Ryfg AH-01 integrates the radar, radar warning receivers (RWR), laser warning receivers (LWR), electronic support measures (ESM) and electronic counter-measures (ECM) together. The system is designated TR-16. TR-16 is claimed to have a high interception rate of hostile signals, and in the fully automatic mode, it can automatically analyze the threat and launch different decoys and jamming signals accordingly. Alternatively, pilots can choose to launch decoys or jamming enemy sensors themselves.
A self protection jamming pod can also be carried, usually on one of the hard points of the stub wings. Similarly, a reconnaissance pod can be carried for reconnaissance missions, although all of these additions come at the cost of reducing the number of hardpoints available for carrying weaponry. Usually, only one of such pod is carried at any one time. The identification friend or foe (IFF) system of the Ryfg AH-01 is specially designed to work in an environment of heavy enemy jamming. All internally mounted jamming and decoy launching systems are built with the concept of modular design, so that they can be readily replaced when newer technologies become available.
The helmet mounted sight (HMS) designed by the 6th Research Institute. The HMS is standard for Ryfg AH-01, and it is fully integrated into the overall FCS. The HMS of Ryfg AH-01 is based on the earlier HMS used on Dao AH-01, which was first shown at the 5th Ninas Terath Airshow held at the end of 2004. At the 7th Runic Airshow held at the end of 2008, the developer confirmed that the HMS is not only fully integrated into the FCS, but also integrated to onboard navigational system as well. Although the navigational info can be displayed on the MFD, pilots can also fly the Ryfg AH-01 on their own, without using the navigational system onboard. This is achieved by using night vision goggles (NVG), which the HMS is fully compatible. The HMS of Ryfg AH-01 can control both the air-to-air and air-to-ground missiles, working in the exact same way 6th Research Institute’s HMS for jet fighters.
Due to its modular design concept, Ryfg AH-01 can be armed with a wide variety of weaponry. The adaptation of a global standard, enables weaponry a wide variety of weaponry to be adopted by Ryfg AH-01. Offensive weaponry consists of machine guns, cannons, rockets and missiles. The stub wings have two hardpoints each for a total of four, each hardpoint being able to carry up to 4 missiles for a total of up to 16.
Internal armament consists of a gun mount installed on the chin of the aircraft. Two stub wings provide attachment points for external ordnance or gun pods. The guns are mounted either in the chain gun form, or in the turret. All guns on the Ryfg AH-01 can be used either against ground targets or aerial targets, and can be directly aimed by pilots’ HMS. In the turret form, automatic grenade launcher can also be housed next to the machine gun in the same turret.
Three types of chain-fed autocannons are available for Ryfg AH-01, with the first being a 23 mm automatic chain gun indigenously developed by HIA. Like all other chain guns, this 23 mm gun covers a sector of 130 degrees. The largest caliber of chain gun carried by Ryfg AH-01 is a 25 mm automatic gun, a HIA development of the m242 autocannon for aircraft use. One of the primary reasons to adopt the m242 gun for aerial use is its high reliability, and according to HIA claim, the failure rate of m242 is relatively low. Another important reason for developing an aerial version of the M242 25 mm gun is to simplify logistics. Using the same ammo for air, ground and naval guns with the same caliber would greatly reduce the operational cost.
The most powerful autocannon that can be mounted on the Ryfg AH-01 is the HIA reverse-engineered 23 mm AO-13 adopted for helicopter use. According to HIA claims, the 23 mm AO-13 is the most accurate among all three autocannons of its kind in use with the Haruspex military, in both ground and aerial formats. Furthermore, it is also said to be the most lethal of all, having the greatest penetrating power against armored vehicles. However, this gun is the most complex and thus the most costly, while being the least reliable type of chain-fed gun in use with the military. The relatively low reliability of the 23 mm autocannon also has prevented the ground version form being widely adopted.
Guns for Ryfg AH-01 can also be mounted in the turret form, but this is limited to small caliber machine guns. The largest type of machine gun that may be fitted to the Ryfg AH-01 turret is a single 14.5 mm gatling gun, while the smaller caliber 12.7 mm or 7.62 mm machine guns may be mounted either in single barrel or twin barrel forms. When armed with these smaller caliber machine guns, the coverage is increased to 180 degrees as opposed to the 130 degrees of larger caliber autocannons.
The turret is flexible enough to incorporate configurations such as a single barrel machine gun and an automatic grenade launcher with calibers ranging from 30 mm to 40 mm. Grenade launchers are only effective against ground targets, while machine guns may be effectively used on both ground and air targets.
The air-to-surface missiles deployed by Ryfg AH-01 include the domestic AA-8, AA-9 and AT-10 anti-tank missiles. The AT-10 is thought to be similar to AGM-114 Hellfire and it has an anti-helicopter capability in addition to anti-tank capability.
The main air-to-air missile deployed by Ryfg AH-01 is AA-9B, a missile specifically designed for use by helicopters in aerial combat. AA-9B is claimed to have greater lethality than the MANPAD missiles usually carried by helicopters. AA-9 and AA-8 are often carried in pairs, with a total of 4 carried. When using larger air-to-air missiles such as AA-9B or similar missiles such as AIM-9 Sidewinder, the total number is reduced to 2.
Ryfg AH-01 can be armed with a wide variety of unguided rockets ranging from 20 mm to 130 mm caliber. The largest rockets tested were a type of 130 mm rocket that were carried on the hardpoints just as missiles are carried, while smaller caliber rockets were mounted in conventional rocket pods. The most frequently used rockets are those ranging from 57 mm to 90 mm and a total of 4 pods can be carried under the stub wings, one under each hardpoint.
General characteristics
* Base Series Designation: AH-01
* Classification Type: Attack Helicopter/Gunship
* Crew: 2
Capacity
* Payload: 8,000 lb (3,600 kg)
* Length: 74 ft 2 in (22.6 m)
* Rotor diameter: 62 ft (18.9 m)
* Height: 15 ft (4.57 m)
* Empty weight: 12,525 lb (5,681 kg)
* Max takeoff weight: 24,272 lb (11,010 kg)
Performance
* Powerplant: 2× HAD-9B turboshaft engine, 1,500 shp (1,100 kW) each
* Never exceed speed: 230 mph (370 km/h) in dive with ducted fan
* Maximum speed: 193 mph (311 km/h)
* Range: 220 mi (354 km)
* Service ceiling: 20,000 ft (5,180 m)
Armaments
Internal guns
* Turret mounted A0-13 23mm Cannon
* K2 14.5mm HMG secondary turret
External stores
* Total payload is 1,500 kg of external stores.
* Inner hardpoints can carry at least 500 kg
* Outer hardpoints can carry up to 250 kg
* Wing-tip pylons are modular and can carry any type of missile designed for helicopter usage.
Bomb-load
* Up to 500 kg.
* Multiple ejector racks
* Submunition/mine dispenser pods
Defensive
Anti-Missile Chaff Dispenser: Located at the very tail of the aircraft are two chaff dispensers. When tailed by a missile, a cloud of chaff and other obtrusive particles can be released to confuse or detonate the enemy's attack.
Payload: Eight (8)
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