ISTANBUL, TURKEY - SEPTEMBER 19: Turkish Stars, the aerobatic demonstration team of the Turkish Air Forces, perform within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 19, 2019. ( Salih Zeki Fazlıoğlu - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 19: Turkish Stars, the aerobatic demonstration team of the Turkish Air Forces, perform within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 19, 2019. ( Muhammed Enes Yıldırım - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 19: Sikorsky helicopters take part in a rescue drill of Turkish Armed Forces within Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 19, 2019. The festival hosts several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Serhat Çağdaş - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 19: The Russian Knights, an aerobatic demonstration team of the Russian Air Force perform demonstration flight with "Sukhoi Su-30" aircrafts, within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 19, 2019. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 19: The Russian Knights, an aerobatic demonstration team of the Russian Air Force perform demonstration flight with "Sukhoi Su-30" aircrafts, within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 19, 2019. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 19: The Russian Knights, an aerobatic demonstration team of the Russian Air Force perform demonstration flight with "Sukhoi Su-30" aircrafts, within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 19, 2019. ( Salih Zeki Fazlıoğlu - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 19: The Russian Knights, an aerobatic demonstration team of the Russian Air Force perform demonstration flight with "Sukhoi Su-30" aircrafts, within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 19, 2019. ( Salih Zeki Fazlıoğlu - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 19: Turkish Stars, the aerobatic demonstration team of the Turkish Air Forces, draw a heart during a performance within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 19, 2019. ( Serhat Çağdaş - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 19: Turkish Stars, the aerobatic demonstration team of the Turkish Air Forces, perform within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 19, 2019. ( Serhat Çağdaş - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 18: Sikorsky, ATAK, Cougar helicopters and F16 jet take part in a rescue drill of Turkish Armed Forces within Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 18, 2019. The festival hosts several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 18: Turkish Aeronautical Association's fire fighting aircraft performs drill within Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 18, 2019. The festival hosts several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Salih Zeki Fazlıoğlu - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 18: S-70 Black Hawk helicopters of Gendarmerie General Command, subordinated to the Ministry of Interior, perform within Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 18, 2019. The festival hosts several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Serhat Çağdaş - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 18: Russian aircraft SU-30SM prepare to perform demonstration flight within Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 18, 2019. The festival will host several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Muhammed Enes Yıldırım - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 18: Turkish Air Force’s aerobatic demonstration team, 'SOLOTURK' performs demonstration flights within Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 18, 2019. The festival will host several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 18: Turkish Air Force’s aerobatic demonstration team, 'SOLOTURK' performs demonstration flights within Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 18, 2019. The festival will host several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Serhat Çağdaş - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 17: 'HURKUS, Basic and Primary Trainer Aircraft' designed and upgraded by Turkish Aerospace Industries (TAI), performs within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 17, 2019. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 17: Helicopters belonging to Turkish Interior Ministry perform within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 17, 2019. ( Arif Hüdaverdi Yaman - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 17: Director of TUBİTAK Defense Industries Research and Development Institute (SAGE), Gurcan Okumus speaks to press related with the Turkey's first indigenous Air to Air Missile System GOKTUG during Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 17, 2019. The festival will host several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Muhammed Enes Yıldırım - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 17: Turkey Technology Team Foundation (T3) Chairman of the Board of Trustees and chairman of the board of TEKNOFEST, Selcuk Bayraktar speaks during the opening ceremony of Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 17, 2019. The festival will host several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 17: People take part in Turkey’s largest technology and aerospace event TEKNOFEST Istanbul, at Ataturk Airport, Istanbul, Turkey on September 17, 2019. The festival will host several activities such as aviation exhibitions, seminars, workshops, drone championship, contests and concerts. ( Arif Hüdaverdi Yaman - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 16: Turkish Stars, the aerobatic demonstration team of the Turkish Air Forces, perform over the Bosphorus within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 16, 2019. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 16: Turkish Stars, the aerobatic demonstration team of the Turkish Air Forces, perform over the Bosphorus within the Teknofest Istanbul Aerospace and Technology Festival in Istanbul, Turkey on September 16, 2019. ( Muhammed Enes Yıldırım - Anadolu Agency )