Designed by Haruspex International Armaments, the requirements for the amphibious landing ships were to enhance the corporations current amphibious operation capability, both in terms of assault and military operations other than war (MOOTW) type operations. The Dymuh class is also the largest helicopter landing ships produced by HIA, with one of the fastest maximum speeds in the world in regards of heavy amphibious assault ships.
The Dymuh AAS is a versatile amphibious warfare ship, and includes a well deck to accommodate Amphibious Assault Vehicles (AAVs) and two Landing Craft Air Cushion (LCAC). The ship is 199 metres long, 31 metres wide, with a 14,000 ton (empty), or 18,000 ton (full) displacement.
As a high-speed amphibious ship, the Dymuh is based on the concept of "over-the-horizon assault." As the name indicates, the "over-the-horizon assault" comprises a military operation in which an amphibious landing operation is conducted with high-speed air-cushioned vehicles and helicopters from beyond the horizon, where they can't be easily detected or attacked by the enemy. The conventional LST (landing ship tank) has to approach the coastline for landing, at the risk of being fired upon by the enemy.
The Dymuh class can carry 720 marines (+300 crew members), 10 tanks, 10 trucks, 7 AAVs, three field artillery pieces, 10 helicopters, and two 110 Ghekrd (Knight) Class LCAC's capable of landing on enemy shores doing 40 knots (74 km/h)—a mix that enables it to launch troop landings from both sea and air.
Self-defense armament includes the RIM-116 Rolling Airframe Missile system, coupled with the HIA Air Defense Weaponry System Series 2. (CIWS).
The flight surface is also sprayed with urethane, which can support VTOL jets, like Harriers, and the F-35B.
General
Name: Dymuh (Talon) Class Amphibious Assault Ship
Builders: Haruspex International Armaments
Boats and landing craft carried: (2) 110 Ghekrd (Knight) Class LCAC's
Aviation facilities: Flight deck and hangar
Capacity: Up to 200 vehicles
Troops: 720 marines, 6 tanks, 7 amphibious assault vehicles
Crew: 700
Dimension & Weight
Tonnage: 14,300 tons (empty) / 18,800 tons (full)
Length: 199 m (653 ft)
Beam: 31 m (102 ft)
Draught: 7 m (23 ft)
Performance
Propulsion: (4) HHVE 16 PC2.5 STC Diesel engines
Speed: 23 knots (43 km/h)
Cruising: 18 knots (33 km/h)
Sensors & Processing Systems
Radar: ASCN-1 air search radar, SSR-03 surface search radar, AN/SPS-95K navigation radar,VAMPIR-MB optronic sight
Electronic warfare and decoys: ESM/ECM:SLQ-200(v)5K SONATA, Chaff launcher
Armament
Air Defense Weaponry System Series 2 CIWS: (2) The ADWSS-2A is designed to primarily defend the ship against incoming missiles and ballistic shells. This system consists of an autocannon and an advanced radar which in typically six seconds detects incoming fire, determines its trajectory, and aims and fires the gun. The system is fully automatic, needing no human input once activated. The weapon has two radar sub-systems, one to find threats and another to track and engage them, which operate together to identify and prioritise targets, and engage the highest priority one.
The 2D I band search radar, which can handle up to 18 targets at once, generates a threat picture which the gun system uses to identify and prioritise threats. The system has identify friend or foe (IFF) functionality to rule out friendly traces. The tracking radar operates in both I band and K band to enable quick acquisition on the threat bearing. Data from both the I band and K band return signals indicate target range and can be used to identify, and respond to the use of, electronic countermeasures (ECM). The dual band system also reduces the effect of clutter, which can mask the target at low altitude. A camera system on the assembly provides a visual fallback for the system operator.
The 30 mm round has a discarding nylon sleeve (sabot) with a 21 mm sub-calibre tungsten penetrator. The nylon sabot provides a seal between penetrator and barrel, and reduces wear. The tracking radar is capable of monitoring the line of fire and commanding minor adjustments.
Supersonic missiles that are damaged may still have enough momentum to hit the ship, the only way to ensure the protection of the ship is either to detonate the warhead of the missile or obliterate the missile.
The system's reaction time to a Mach 2 sea-skimming missile such as the Russian SS-N-22 Sunburn from automatic detection to kill is reported to be 5.5 seconds with the firing synchronised to start the engagement at a range of 1,500 m and ending with a kill at 300 m.
Weight: 6,372 kg with 1,190 rds of ammunition (above deck), 9,902 kg (total).
Height: 3.71 m (above deck) 6.2 m (including deck penetration).
Crew: Automated, with human oversight
Caliber: 30 mm
Barrels: 7
Elevation: +85 to −25 degrees at 80 degree/s
Traverse: 360°
Rate of fire: 70 rounds/second (4,200 rounds/minute)
Muzzle velocity: 1,109 m/s (MPDS round)
Effective range: 350 to between 1,500 and 2,000 meters dependent on ammunition
One RIM-116 Rolling Airframe Missile: (1) The RIM-116 Rolling Airframe Missile (RAM) is a small, lightweight, infrared homing surface-to-air missile in use by a variety of navies. It was intended originally and used primarily as a point-defense weapon against anti-ship cruise missiles. The missile is so-named because it rolls around its longitudinal axis to stabilize its flight path, much like a bullet fired from a rifled barrel.
The Rolling Airframe Missiles, together with the Mk 49 Guided Missile Launching System (GMLS) and support equipment, comprise the RAM Mk 31 Guided Missile Weapon System (GMWS). The Mk-144 Guided Missile Launcher (GML) unit weighs 5,777 kilograms (12,740 lb) and stores 21 missiles. The original weapon cannot employ its own sensors prior to firing so it must be integrated with a ship's combat system, which directs the launcher at targets.
Primary Function: Surface-to-Air Missile
Length: 2.79 m (9 ft 2 in)
Diameter: 127 mm (5.0 in)
Fin span: 434 mm (1 ft 5.1 in)
Speed: Mach 2.0+
Warhead: 11.3 kg (24.9 lb) blast fragmentation
Launch Weight: 73.5 kg (162 lb)
Range: 9 km (5.6 mi)
Guidance System: three modes—passive radio frequency/infrared homing, infrared only, or infrared dual mode enabled (radio frequency and infrared homing)
Aircraft carried
Up to 15 helicopters
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