Gökbey helicopter flew with domestic engine

Gökbey general purpose helicopter developed by TUSAŞ made its first flight with the domestic TEI-TS1400 Turboshaft Engine developed by TEI. Gökbey ascended a short distance with the two pilots and landed back on the runway.

President of the Presidency of Defense Industries, İsmail Demir, shared the flight footage of Gökbey with a domestic engine. The camera of the Aksungur UAV, flying with the domestic TEI-PD170 engine, recorded this flight from the air.

TEI-TS1400 Turboshaft Engine produces 1400 horsepower during take-off. Under favorable conditions, it can produce up to 1660 horsepower. It draws attention with its service altitude of 20,000 feet and output shaft speed of 23,000 rpm.

Gökbey Utility Helicopter is designed for civil and military uses. It will be able to operate in harsh climatic conditions, at high altitudes and high temperatures, day and night. It will be able to perform VIP, cargo, air ambulance, search and rescue and offshore transport missions. It stands out with its wide range of duties, ease of maintenance and wide interior cabin. Gökbey is scheduled to conduct the first manned flight test with the domestic TEI-TS1400 engine this year. With a total take-off weight of 6 tons, a passenger capacity of 12, a maximum speed of 306 km/h, a service ceiling of 20 thousand feet, and a flight time of 3.8+ hours, Gökbey can stay in the air for 5+ hours with its external fuel tank and reach a maximum range of 948 kilometers.

TEI-TS1400 Technical Specifications

• Takeoff Power (Sea Level Static): 1,400 shp
• 30 sec. Single Engine Power (Sea Level Static): 1,660 shp
• Takeoff Power/Weight: 8.54 (shp)/(kg)
• Service Height: 20,000 ft
• Output Shaft Speed: 23,000 rpm

Gökbey Helicopter Technical Specifications

• Length (with rotors rotating): 15.87 m
• MTOW: 6050 kg
• Maximum Traveling Speed: 306 km/h
• Service Ceiling: 6069 m
• Range: 740 km (948 km with external fuel)
• Airtime: 3.8+ Hours (5+ hours on external fuel)
• Main Rotor Diameter: 13.20 m
• Standard Fuel Tank: 1020 kg
• External Fuel Tank: 280 kg
• Luggage Volume: 1.1 m3
• Crew: 2
• Passenger: 12