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Tay

Tay montage

Today’s fleet of over 750 Tay-powered aircraft has accumulated over 17 million hours in service

Product details

  • Today’s fleet of over 750 Tay-powered aircraft has accumulated over 17 million hours in service
  • The most reliable entry into service of any aero engine
  • Tay unplanned removal and shutdown rates well below industry average

Fact sheet

The Tay provides the quietest operation in its class and has levels of emissions well below those required for future regulations.

It has proven to be an extremely reliable engine and is very durable in demanding short-haul operations.

The Tay 611-8 is renowned for its reliability. An improved version of the engine has been selected to power the next generation of GIV aircraft. Changes include the incorporation of a FADEC control system.

The engine powers the Gulfstream IV, IV-SP, G300, G350, G400 and the G450 aircraft, which entered service in May 2005.

The Tay 650 on the Fokker 100 aircraft and the 651 on the re-engined Boeing 727, provide increased maximum thrust for take-off, climb and cruise, plus efficiency improvements through small increases in fan diameter and an advanced high-pressure turbine.

 

  • The Tay is a two-shaft high-bypass ratio engine.
  • 44-45 inch diameter wide-chord fan with three stages of LP compressor to the rear
  • 12-stage HP compressor
  • Annular combustion system, consisting of ten combustors
  • Two-stage HP turbine
  • Three-stage LP turbine
  • The majority of the bypass duct is constructed in carbon fibre composite material
  • Cold bypass air and hot exhaust are combined in a forced mixer that gives good propulsive efficiency and low noise generation 
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