The TAI T625 Gökbey is a twin-engined light transport/utility helicopter developed by Turkish Aerospace Industries.[2] Turkey's Undersecretariat for Defence Industries plans to offer the new platform to Turkish Armed Forces and cooperating nations.[3]

T625 Gökbey
T625 mock-up at the 2017 Paris Air Show
Role	Utility helicopter Type of aircraft
National origin	Turkey
Manufacturer	Turkish Aerospace Industries
First flight	6 September 2018
Status	Undergoing testing [1]
Primary users	Turkish Air Force Turkish Army Turkish Navy
Number built	4 prototypes built

Design and development

Turkish Aerospace Industries launched preliminary design studies in 2010.[4] The project commenced in 2013 when Undersecretariat for Defence Industries signed a contract with the Turkish Aerospace Industries to develop a 6-ton class multi-role helicopter for land operations.[3][5][2] Alp Aviation is responsible for production and assembly of landing gear, gearbox and dynamic components,[6] while Spanish CESA was selected to supply hydraulic systems.[7]

The T625 is expected to weigh 5 tonnes and is in the interim powered by two LHTEC CTS800 engines. The CTS800 was chosen due to commonality with the TAI/AgustaWestland T129. TUSAS Engine Industries has developed a next generation indigenous powerplant for the T625 named the TEI TS1400. First delivery of TEI TS1400 happened on December 5, 2020.[8]

The T625 features a four-axis dual redundant automatic flight control system, along with an ASELSAN glass cockpit with two wide touchscreen Integrated Mission Displays (8x20 inches) and two touchscreen data entry Touch Command Control Units (8x10 inches). It is designed for IFR and VFR single pilot operations, night operations and flight in known icing conditions.[9] The Turkish Presidency of Defense Industries has confirmed that it has obtained a multitude of patents for various sub-systems used in the T625.[10]

All windshields and windows of T625 Gokbey Helicopter are produced by VOLO Composites.

On 6 September 2018, the prototype, registered TC-HLP, conducted its maiden flight at Ankara.[11][12]

On 29 June 2021, three prototype's have been built with all of them successfully finishing the certification tests[13]

Specifications

Data from [8][14]

General characteristics

• Crew: 2
• Capacity: 12 passengers
• Length: 15.87 m (52 ft 1 in)
• Max takeoff weight: 6,050 kg (13,338 lb)
• Powerplant: 2 × LHTEC CTS800-4A,( TEI TS1400 scheduled for 2024) turboshaft engine, 1,024 kW (1,373 hp) each
• Main rotor diameter: 13.2 m (43 ft 4 in)

Performance

• Maximum speed: 306 km/h (190 mph, 165 kn)
• Cruise speed: 278 km/h (173 mph, 150 kn)
• Range: 740 km (460 mi, 400 nmi) +
• Endurance: 3 hours 48 minutes
• Service ceiling: 6,096 m (20,000 ft)

See also

Related development

• TAI T629

Aircraft of comparable role, configuration, and era

• AgustaWestland AW169
• Airbus Helicopters H160
• Eurocopter EC155
• Harbin Z-9
• Kamov Ka-60
• Sikorsky S-76
• HAL Dhruv
• HAL Light Utility Helicopter
• HAL Rudra
• KAI LCH
• KAI LAH

Related lists

• List of helicopters
• List of utility helicopters

References

External links

Wikimedia Commons has media related to TAI T-625.

• TAI T625 website

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[de] TAI Gökbey

[fr] TAI T625