LMI-4 Tern
The LMI-4 Tern (DA.1, DA.2, and DA.3 in United Kingdom of Isselmere-Nieland Defence Forces' service) is the Rook's larger sibling and has approximately twice the weapons payload of the smaller UMAV. The "Tern" uses the same autonomous operation situational awareness module (AOSAM) as the Rook. The AOSAM allows a drone control unit (DCU) to program in a generalised flight path that the drone may amend to avoid enemy air defences, or to attack high priority targets of opportunity as indicated by its automatic target recognition (ATR). Both the ATR and the Tern's mission profile may be updated in flight.
The Tern is able to carry three 250kg bombs or comparably sized weapons in three internal weapons bays (approximately 2.8 m long, 30 cm wide, 30 cm deep) for up to 1400 km, or greater with either external or conformal fuel tanks.
LMI-4
Functions: autonomous attack aerial vehicle
Dimensions: length: 7.84m; wingspan: 6.4m
Mass: empty: 1740 kg; maximum take-off mass: 3333 kg; weapons payload: 875 kg+
Weapons: can carry 3 GWS.50 Pigeon, 6 GWS.47 Robin, or 9 GWS.48 Starling.
Propulsion: IMW F56-IMW turbofan
Range: 1400 km+
Ceiling: 15 km+
Speed: Mach 1.15 (supercruise); Mach 1.8+ (maximum)
Price: $10 million; $5 million per GCS/TCS and associated electronics (datalink components, satellite communications antennae).
LMI-4.1
Functions: autonomous attack aerial vehicle
Dimensions: length: 7.84m; wingspan: 6.4m
Mass: empty: 1740 kg; maximum take-off mass: 3333 kg; weapons payload: 875 kg+
Weapons: can carry 3 GWS.50 Pigeon, 6 GWS.47 Robin, or 9 GWS.48 Starling.
Propulsion: IMW F56-IMW turbofan
Range: 1400 km+
Ceiling: 15 km+
Speed: Mach 1.4 (supercruise); Mach 1.8+ (maximum)
Price: $10 million; $5 million per GCS/TCS and associated electronics (datalink components, satellite communications antennae).
LMI-4.2
Function: Light fighter-bomber
Current model: LMI-4.2
Service designation: DA.2
Cost: $17.5 million
Wings:
(-4): Span: 8.06m (folds to 2.84m)
(-4.2): Span: 10.42m (folds to 4.5m)
Fuselage:
(-4): Length: 7.84m; height: 2.14m
(-4.2): Length: 8.06m; height: 2.24m
Powerplant: Isselmere Motor Works F56 turbofan
Mass:
(-4): Empty: 2362kg; maximum take-off: 4064kg
(-4.2): Empty: 3784kg; maximum take-off: 5900kg
Performance: Cruise speed: Mach 0.96; supercruise: Mach 1.24; maximum: Mach 1.68+; Range: 1500km+; Service ceiling: 15km+
Bays: 3 × (3m × 0.3m × 0.3m); can carry 3 GWS.50 Pigeon, 6 GWS.47 Robin, or 9 GWS.48 Starling
Hardpoints: 2, wing (112kg ea.)
Payload:
(-4): 875kg+
(-4.2):
Fuel fraction:
(-4): (900 litres, 720kg JP8)
(-4.2): (1580 litres, 1264kg JP8)
Thrust loading:
Wing loading:
Electronics suite:
ECM/ESM:
Countermeasures: 2 × 12-cell ALE.209L chaff/flare ejectors
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