The AE2100 turboprop engine is based on thoroughly proven T56 family. The design is modern and has incorporated the latest technology. The engine core is common for ease of maintenance, and the engine is equipped with Full Authority Digital Electronic Control (FADEC) for engine control. The AE 2100 turboprop core technology benefits from 200 million T56 operating hours across the full range of military operations and over one million hours on the Rolls-Royce AE family of engines. The two-shaft axial design consists of a 14-stage compressor followed by an effusion-cooled annular combustor, a two-stage gas generator turbine and a two-stage power turbine. It features six rows of variable compressor vanes, dual FADEC, a self-contained oil system that allows for vertical operation, modular construction, and an "on-condition" maintenance capability.
The AE2100D3 turboprop is a two-shaft design with a 14-stage compressor driven by a two-stage HP turbine, the two-stage IP turbine drives the compound planetary reduction gearbox. The engine is the first to use dual FADECs (full authority digital engine control) to control both engine and propeller. The AE2100D3 turboprop engine is rated at 4,591 shaft horsepower. The propeller is made up of an all-composite six-blade R391 propeller system. An automatic thrust control system (ATCS) optimizes the balance of power on the engines, allowing lower values of minimum control speeds during hover flight.
Developed to power the latest generation of high-speed turboprop aircraft, the AE 2100 has been designed to operate under the demanding conditions of open water and off-runway take-offs and landings. Setting new standards of turboprop performance, efficiency and economy, the AE 2100's versatility is highlighted by its selection for regional, key military transport and long-range maritime patrol applications worldwide.
Sharing a common core with both turbofan and turboshaft engine variants, the AE 2100 benefits from 70 per cent parts commonality with the other engines in the AE family. This allows the collective service experience of over 4000 AE engine deliveries to be carried through all phases of the AE 2100 product life cycle. Hence all AE 2100 operators benefit from over 17 million hours cumulative service experience and the continuous improvement and investment that this experience delivers. Transporting passengers and cargo at record setting altitudes and speeds, the AE 2100 has power to spare - delivering the reliability, durability and performance required by regional, transport and special mission applications worldwide. The AE 2100 continues to be the world's leading high power turboprop.
The latest C-130 to be produced, the C-130J entered the inventory in February 1999. With the noticeable difference of a six-bladed composite propeller coupled to a Rolls-Royce AE2100D3 turboprop engine, the C-130J brings substantial performance improvements over all previous models, and has allowed the introduction of the C-130J-30, a stretch version with a 15-foot fuselage extension. A new propulsion system, featuring four powerful Allison AE2100D3 engines, generates 29% more thrust while increasing fuel efficiency by 15%. An all composite six-blade Dowty Aerospace R391 propeller system is lighter in weight and has fewer moving parts than previous Hercules propellers.
Rolls-Royce made a number of major acquisitions in the United States in the 1990s. In 1995 it acquired the Allison Engine Company in Indianapolis with its successful defence programmes, including the Model 250, and major new civil engines - including the AE 3007 powerplants for Embraer's ERJ 145 regional jet family. It also gave it leadership in engines for military transport aircraft through the T-56 and AE 2100 engines.
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