G L O B A L DEFENSE SOLUTIONS

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L-1011 TRISTAR  TANKER  CARGO / PERSONNEL TRANSPORT  MEDIVAC / DISASTER RESPONSE

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G L O B A L DEFENSE SOLUTIONS

THE AIRCRAFT

The Lockheed L-1011 TriStar aircraft that are the subject of this brief were originally produced as standard production aircraft by the manufacturer. The British Government – (RAF) mandated requirements for the purchase of the subject aircraft following the Falklands War in 1982, having the need for additional air-to-air refueling operations. A total of nine aircraft were selected and thereon converted to military configuration for long range capability of the RAF in the transport and tanker roles with the first of (9) aircraft entering service with the RAF in 1985.

Marshall Aerospace of Cambridge (Engineering) Ltd was contracted by the Ministry of Defense (MoD) to perform the conversions on the subject TriStars. A total of nine aircraft were converted and pressed into in service from 1985 to 1988, two were tankers (K1) with passenger space and also limited space for cargo loaded aft of the main deck; three were solely transport aircraft (C2); and the remaining four (KC1) could be used for either of the two roles. The TriStars were subject to progressive updating, including the fitting of flight deck armour and Directional Infrared Counter Measures to protect against ground fire when flying into Iraq.

The conversion included the installation of paired HDUs (Hose Drum Units) in the lower rear fuselage, underfloor fuel tanks in the fore and aft baggage compartments, adding an additional 100,060lbs (45,385kg) of fuel, a closed circuit TV camera to monitor refueling, and military communications and navigation equipment. The aircraft are also equipped with a refueling probe capability above the forward fuselage. The first flight of the newly converted aircraft was made on July 9, 1985 and entered service. As full passenger seating is available in the cabin, the K1 is an excellent aircraft for squadron deployments, able to refuel their aircraft in the air and at the same time carrying squadron personnel and supplies.

The TriStar KC1 version having with the same modifications as the K1 but with an additional large cargo door in the port side front fuselage, a freight handling system, and a strengthened floor can carry cargo on pallets and 35 passengers. The first KC1 was flown and entered service in 1988.

The TriStars formed the air-to-air refueling and cargo transport fleet of the RAF until plans were to replace the fleet with the new A330 MRTT under the Future Strategic Tanker Aircraft (FSTA) program. Even though the TriStars had years of operational service life remaining, in March of 2014 the MoD took the TriStars out of service. Of the (9) TriStars (3) were scrapped and further destruction of the remaining (6) were lobbied in an effort to save for commercialization defense contracting. The remaining aircraft are now registered with the Federal Aviation Administration (FAA), being certified under Part 91 Regulations as civilian operated aircraft, performing the same roles as they did previously in military operations.

G L O B A L DEFENSE SOLUTIONS

Aircraft Registered with FAA Registry:

1 Each TriStar K1: N309CS (ZD951) Tanker/transport/cargo role (not fitted with a large cargo door), Additional fuel tanks of 100,000 lb capacity fitted in forward and aft baggage holds. Main cabin palletized and quickly configurable in mixed passenger / freight mode to seat up to 187 passengers with baggage stored forward end main deck. Two (2) NATO Standard Flight Refueling Mk 17T Hose Drum Units in underside aft rear fuselage.

3 Each TriStar KC1: N304CS (ZD948) / N405CS (ZD950) / N705CS (ZD953) Tanker/cargo/transport role, (fitted with large cargo door), Additional fuel tanks of 100,000 lb capacity fitted in forward and aft baggage holds. Main cabin palletized and quickly configurable in mixed passenger / freight mode. Two (2) NATO Standard Flight Refueling Mk 17T Hose Drum Units in underside aft rear fuselage.

G L O B A L DEFENSE SOLUTIONS

2 Each TriStar C2 N507CS (ZE704) / N703CS (ZE705) TriStar 500 operated as passenger aircraft, with capability for carrying cargo and also Aeromedical/Medevac.

4

General characteristics

 Crew: 4 (1 captain, 1 co-pilot, 1 air engineer, 1 Air Loadmaster)  Capacity: 187 passengers (250 on C variant)[10]  Length: 50.05 m (164 ft 3 in)  Wingspan: 50.09 m (164 ft 4 in)  Height: 16.87 m (55 ft 4 in)  Wing area: 329.0 m² (3540 ft²)  Empty weight: 105,165 kg (242,684 lb)  Max. takeoff weight: 245,000 kg (540,000 lb) the MTOW for all RAF TriStars were increased  Powerplant: 3 × Rolls-Royce RB.211-524B , 50,000 lbf (222.4 kN) each  Maximum Fuel Load: 136,080 kg (300,000 lb)  Cargo Holds: Can accommodate standard LD3 freight containers.

Performance

 Maximum speed: Mach 0.90  Cruise speed: Mach 0.83 (483 kn, 894 km/h)  Range: 4,200 nmi (7,785 km) with maximum passenger payload  Service ceiling: 43,000 ft (13,000 m)  Rate of climb: 2,820 ft/min (14.3 m/s)