TEI TS1400

TEI TS1400
TEI TS1400 turboshaft engine
Type	Turboshaft
National origin	Turkey
Manufacturer	Tusaş Engine Industries (TEI)
First run	December 11, 2020
Major applications	TAI T625 Gökbey T129 ATAK

The TEI TS1400 is a 1,400 shp turboshaft engine for rotary wing applications. It is developed by the Tusaş Engine Industries (TEI) in Turkey.^[1][2][3]

The engine is developed for helicopters produced in Turkey. The "Turboshaft Engine Development Project" (Turkish: Turboşaft Motor Geliştirme Projesi, TMGP), launched on 7 March 2017, aims to reduce foreign dependency while increasing indigenousness rates.^[3] The first installment of the TEI TS1400 is planned on the TAI T625 Gökbey, a twin-engined light transport/utility helicopter developed by Turkish Aerospace Industries. The engine was introduced to the public on 11 December 2020.^[4] It was also announced that the engine may be used for T129 ATAK attack helicopter in the future.^[5]

Data from ^[3]

• Type: turboshaft
• Length: 1,105 mm (43.5 in)
• Diameter: 404 mm (15.9 in)
• Dry weight: 180 kg (397 lb)

• Compressor: 2-stage axial
• Combustors: annular
• Turbine: 2-stage
• Fuel type: Jet A1
• Oil system: dry sump

• Maximum power output: 1,500 shp (1,100 kW)
• Overall pressure ratio: 12:1
• Turbine inlet temperature: 1,400 °C (2,552 °F)
• Power-to-weight ratio: 8.54 shp/kg (2.89 kW/lb)

Other

• 30 sec. single engine power output: 1,740 shp (1,300 kW)
• 120 sec. single engine power output: 1,660 shp (1,240 kW)
• Ceiling: 20,000 ft (6,100 m)
• Shaft output revolution: 23,000 rpm

Comparable engines

• Avco/Pratt & Whitney T800
• HAL/Turbomeca Shakti
• LHTEC T800
• Safran Arrano