LMI-5 Auk/Puffin
The LMI-5 Auk/Puffin uncrewed rotorcraft or helicopter drone (UAR) is a multipurpose coaxial rotor design from Lyme and Martens Industries (LMI).
Both the Auk and the Puffin are equipped with an Autonomous Operation Situational Awareness Module (AOSAM), allowing the helicopter drones to take-off, perform pre-planned missions, and land autonomously. Secure datalink connections with the mother ship and/or with crewed aircraft and the drones’ hybrid laser ring gyroscope and GPS inertial guidance keep the UARs on target. The AOSAM can respond to threats detected by the rotorcraft’s radar, laser, and missile launch warning arrays with programmed evasive manoeuvres or by releasing flares or chaff from its twelve-cell ALE.209A countermeasures ejector.
LMI-5M Auk
The LMI-5M Auk, known as the DHM.1 by the United Kingdom of Isselmere-Nieland Defence Forces, is a multipurpose maritime uncrewed rotorcraft. Its primary function is anti-submarine warfare, for which it has a surface/low-level search radar and an optronic sensor turret (OST) in its nose as well as a four-cell sonobuoy ejector. The OST is equipped with a day/low-light level television charge-coupled device (CCD), an imaging infra-red (IIR) sensor, and a laser designator/rangefinder (LDRF). The Auk maintains contact with its mother ship or crewed helicopters through secure datalinks, notably the Link 17.2D system, not only for its own mission support, but as a communications relay and for over-the-horizon (OTH) missile guidance and naval gunfire direction (NGD) as well.
The radar is a passive electronically scanned array (PESA) inverse synthetic aperture radar (ISAR) system equipped with ground and maritime moving target indicator (GMTI/MMTI) packages. Later models of the Auk will sport an active electronically scanned array (AESA)
In the Auk, the AOSAM provides automatic target recognition (ATR) that the rotorcraft can use to attack hostile submarines and surface contacts on its own or to evade threats. A current Royal Isselmere-Nieland Navy tactic is to use the Auk as a picket against low-flying aircraft and sea-skimming anti-ship missiles.
The Auk has two belly hardpoints each rated at 340 kg and may sport two stub wings each able to bear a maximum of 200 kg, for a maximum payload of 650 kg. Typically, the Auk sports two lightweight torpedoes, such as the GWS.63 Barracuda.
Specifications (LMI-5M1)
Type: Uncrewed rotorcraft
Manufacturer designation: LMI-5M
Service designation: DHM.1 (RINN), DHU.3 (INA, RINM)
Functions
DHM.1: Anti-submarine warfare (ASW), naval gunfire direction (NGD), missile guidance, limited anti-ship capability.
DHU.2: Various.
Sensors: Surface/low-level search radar, electro-optical (IIR, LLTV, LIDAR)
Dimensions: Length (body): 5.64m; width (body): 3.2m; rotors: 6.1m; height (total): 2.96m; static ground clearance: 1.52m
Mass: Empty: 625kg; normal gross: 1661kg; weapons payload (maximum): 650kg+
Propulsion: Demers Turbines TMR-41 driving a contra-rotating advancing blade concept (ABC) coaxial rotor system and a small ducted fan providing forward thrust
Range: 225 km with 4 hrs. loitering time, or greater than 6 hrs. endurance.
Speed: 230+ km/h
Payload: 2 centreline stations, each capable of holding 325 kg mass; load-bearing wings can be attached.
Price: $6.5 million (DHM.1); $5 million for ground or tactical control stations (not necessary for RSIN produced ships with either the MSP.131 or MSP.133 landing systems).
LMI-5EW Puffin
Type: Uncrewed rotorcraft
Service designation: DHEW.2
Function: Heliborne early warning
Sensors: Medium range air/surface search radar
Dimensions: Length (body): 5.64m; width (body): 3.2m; rotors: 6.1m; height (total): 2.96m; static ground clearance: 1.52m
Mass: Empty: 625kg; normal gross: 1661kg; weapons payload (maximum): 650kg+
Propulsion: Demers Turbines TMR-41 driving a contra-rotating advancing blade concept (ABC) coaxial rotor system and a small ducted fan providing forward thrust
Range: 225 km with 4 hrs. loitering time, or greater than 6 hrs. endurance.
Speed: 230+ km/h
Payload: 2 centreline stations, each capable of holding 325 kg mass; load-bearing wings can be attached.
Price: $12 million (DHEW.2); $5 million for ground or tactical control stations (not necessary for RSIN produced ships with either the MSP.131 or MSP.133 landing systems).
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