Sunday, February 1, 2009

Cougar Ridgback 4×4 Armoured Vehicle, United Kingdom



Body
3-door 4×4 and one hatch, internal cabin dimensions behind front seats is 108in
Length
233in
Width
102in
Height
104in-130in
Weight
38,000lb
Ground Clearance
15in-16in
Maximum Speed on Road
55mph on run-flat tyres but top speed should be a little over 65mph on tarmac roads
Full specifications

With UK Forces very much active in Afghanistan and Iraq a new vehicle has been ordered by the UK MoD (Ministry of Defence) to provide protection to troops on patrol from mines and roadside bombs. The vehicle is the Cougar 4×4 produced by Force Protection Industries Incorporated (Ladson, South Carolina) in the US, who were also responsible for the highly successful Mastiff.
"The Ridgback will be produced in four variants for different roles."

By November 2008, the MoD had ordered 400 Cougars (the contract is due for completion by July 2009; a contract valued at around $200m) and these will be modified by the addition armour systems, specialist Nato-spec weapons, communications systems and electronic countermeasures equipment into the 'Ridgback' when they arrive in the UK (the vehicles were ordered as an urgent operational requirement (UOR)).

The first batch of five Cougars was delivered to RAF Brize Norton on 14 August 2008. NP Aerospace in Coventry has the contract (£81m) for carrying out the modifications to the Cougar.

Ridgback weaponry

The Ridgback weapons will include the heavy machine gun, 7.62mm general purpose machine gun, grenade launcher and some will be equipped with remote weapons systems allowing the Ridgback weapons to be operated from inside using a camera and joystick.

Des Browne, the UK Defence Secretary, commented: "I am determined to do all that I can to get more armoured vehicles out to our forces on operations – to give commanders a choice about what vehicles they use. The Mastiffs have saved lives out in theatre and we have ordered the Ridgback because it is a smaller version of the Mastiff – offering our forces first-rate protection with more manoeuvrability."

The Ridgback will be produced in four variants for different roles – a troop carrier, a protected weapons station and an ambulance or command post vehicle.

Performance

The Ridgback will come into service in 2009 in Iraq and Afghanistan (it is fully transportable by C17). The vehicle can carry 12 troops and can run on run flat tyres (Michelin XZL 395/85 R20 and Hutchinson VFI) at a speed of 55mph. The Ridgback is a mine-resistant ambush-protected (MRAP) category I vehicle with a high armour rating (shaped hull and protected cabin using composite armour systems) and will also use special armoured seats to protect troops.

The vehicle will be powered by a Caterpillar C-7 diesel engine that can give 330hp at 2,400rpm and a torque of 860ft lbf at 1,450rpm with an operational range of 420 miles.
"The first batch of five Cougars was delivered to RAF Brize Norton on 14 August 2008."

The transmission for the Cougar / Ridgback is an Allison 3500 SP series and the front and rear axles are Marmon-Herrington MT-17 and R-17 respectively (modified for the harsh terrain). The vehicle weighs around 38,000lb with a payload of 6,000lb and as such uses air brakes for effective stopping.

The standard crew is six, but with the Ridgback there will be several versions. Electrics are standard 24V and there are two air conditioning units (24,000BTU and 48,000BTU) for use in hot climates.

There are three doors (two in front and one rear double-sized crew door) and one topside hatch.

The Cougar's standard dimensions are: height 104in (gun shield will add 26in), width 102in, length 233in, hull internal length 108in, fording depth 39in, ground clearance 15in-16in.

The cabin can be sealed to provide NBC protection and there are various other accessories including four point harnesses for seats, integral tool kit, ballistic glass, 360° ring mount or spigot mount for weapons, infrared / blackout lighting, dual spare wheels, 9,000lb-capacity electric winch and fire extinguishing systems as well as shielded ammo storage areas.

Unmanned Little Bird (ULB) Helicopter Demonstrator, USA

Dimensions
Length
9.94m
Height
2.67m
Fuselage Length
7.49m
Tail Plane Span
1.65m
Main Rotor Diameter
8.33m
Tail Rotor Diameter
1.42m
Type
Rolls-Royce 250-C30 turboshaft
Full specifications

The Boeing unmanned Little Bird (ULB) demonstrator is a modification of the MD 530F single-turbine helicopter, designed for both manned and unmanned flight. The ULB can be remotely operated or programmed for autonomous operations in any of its three operational modes: dual pilot, single pilot or unmanned flight operations. The high payload capacity allows missions to include long-endurance intelligence, surveillance, and reconnaissance missions using heavy, high-capability sensors.

Boeing's unmanned Little Bird (ULB) helicopter demonstrator successfully completed its first flight in September 2004 and the first autonomous take-off and landing was carried out in October 2004. During this phase of testing an on-board test pilot monitored the helicopter's performance but did not actively fly the aircraft. The first truly unmanned flight was completed in July 2006.
"The Boeing unmanned
Little Bird demonstrator (ULB) is a modification of the MD 530F single-turbine helicopter."

The business operations centres responsible for development of the Little Bird include Boeing Rotorcraft Unmanned Systems based in Mesa, Arizona, Boeing Advanced Systems, the Boeing Company in St Louis, and Boeing Integrated Defense Systems, St Louis.

The unmanned Little Bird demonstrator aircraft has safely conducted more than 500 hours of UAV technology flight testing since its first flight in September 2004. The demonstrator has supported the definition and qualification of US Army manned and unmanned aircraft operations. The ULB demonstrator won the American Helicopter Society's AHS 2005 Grover E Bell award for the best advancement in rotorcraft research for that year.

The unmanned variant being internationally marketed by Boeing is based on the A/MH-6M aircraft. The A/MH-6 helicopters which are used by the US Army Special Forces are based on the MD 500 series.

A/MH-6X

The A/MH-6X is an optionally manned or unmanned aircraft which is a hybrid of the ULB demonstrator and the A/MH-6M mission-enhanced Little Bird which is used by US Army Special Operations Command. The A/MH-6X completed its first flight in September 2006.

The payload capacity of the A/MH-6X is 1,543kg, nearly 50% greater than that of the ULB demonstrator.

The glass cockpit of the A/MH-6X includes advanced avionics systems such as multi-sensor data fusion, digital mapping, high bandwidth signal processing, data storage, digital radio and Ku band (11.0GHz to 14.5GHz) communications.

Little Bird missions

For the US Army, the missions of the manned / unmanned A/MH-6X Little Bird could include surveillance, as a wideband communications node, resupply of troops in battlefield forward positions, the extraction of stranded soldiers in the battlefield and the rescue of downed pilots.

Helicopter design

The unmanned Little Bird helicopter air vehicle is based on the combat-proven MD 530F light helicopter which was first flown in 1982.

The helicopter is fitted with an articulated five-bladed main rotor of diameter 8.33m. The retention pins are removed to fold the blades for storage.

Mission payloads

The ULB helicopter can be fitted with a range of surveillance, communications and weapons to fulfil different mission requirements. The payload capacity is 1,090kg.

The flight tests of the ULB helicopter have been carried out with payloads of an L-3 Wescam MX-15 electro-optical and infrared sensor together with an L-3 Communications tactical common datalink (TCDL).
"The unmanned Little Bird demonstrator aircraft has safely conducted more than 500 hours of UAV technology flight."

Weapons

The ULB helicopter can be armed with 2.75in rockets, the Viper Strike stand-off precision-guided munition (SOPGM) supplied by Northrop Grumman and a 12.7mm GAU-19 Gatling gun.

The Viper Strike SOPGM is a gliding munition for stand-off precision attack which uses GPS-aided navigation and a semi-active laser seeker. It is intended for operations that require a flexible (steep or shallow) angle of inclination, particularly in mountainous terrain or urban areas. The munition's small size and precision provide low collateral damage in cluttered urban environments.

ULB guidance system

Boeing developed the ground control station and the air vehicle's guidance and navigation systems. The air vehicle uses a conventional automatic take-off and landing procedure.

Engine

The 485kW Rolls-Royce 250-C30 turboshaft engine is mounted on an incline in the rear section of the fuselage.