ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan wearing a pilot uniform with presidential seal greets the crowd after he arrived at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Kayhan Özer - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan wearing a pilot uniform with presidential seal and his wife Emine Erdogan arrive at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Kayhan Özer - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan, wearing a pilot uniform with presidential seal, arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Cem Öksüz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan (R), wearing a pilot uniform with presidential seal, greets the crowd with his wife Emine Erdogan (L) before making a speech following his arrival at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan (C), wearing a pilot uniform with presidential seal, arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Kayhan Özer - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan (L), wearing a pilot uniform with presidential seal, is welcomed as he arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Kayhan Özer - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan (L), wearing a pilot uniform with presidential seal, arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Kayhan Özer - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan, wearing a pilot uniform with presidential seal, arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Cem Öksüz - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan's plane arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival in company with F 16 fighter jets on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Salih Zeki Fazlıoğlu - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan, wearing a pilot uniform with presidential seal, gets off the plane as he arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Salih Zeki Fazlıoğlu - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan (C), wearing a pilot uniform with presidential seal, and his wife Emine Erdogan (L) pose for a photo after arriving at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Salih Zeki Fazlıoğlu - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan gets off the plane as he arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Murat Kula - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan, wearing pilot uniform with presidential seal, arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Kayhan Özer - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan, wearing pilot uniform with presidential seal, arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Kayhan Özer - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan's plane arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival in company with F 16 fighter jets on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Kayhan Özer - Anadolu Agency )

ISTANBUL, TURKEY - SEPTEMBER 22: Turkish President Recep Tayyip Erdogan's plane arrives at the field of the 'Teknofest Istanbul' Aerospace and Technology Festival in company with F 16 fighter jets on September 22, 2018 in Istanbul, Turkey. Teknofest Istanbul is being organized by the Turkey Technology Team Foundation (T3) and the Istanbul Metropolitan Municipality to promote and to showcase Turkey's rapid advance in technology on September 20-23 at the city’s new airport. ( Cem Öksüz - Anadolu Agency )