Hezarfen Ahmet Celebi the most famous Turkish flyer, inspired by the studies by Leonardo Da Vinci and with some corrections and balancing adjustments, derived from studying the eagle in flight, finally, after nine experimental attempts, gave shape to his wing apparatus. His flight took place in 1638 from the 183 foot tall Galata Tower near the Bosphorus in Istanbul, during the reign of the Turkish Sultan Murad IV. The flight was successful. Hezarfen Celebi landed on the other side of the Bosphorus. With this success Hazarfen proved to be 200 years ahead of his time since it was two centuries later that comparable developements took place elsewhere. The event is recorded by writer and historian Evliya Celebi (traveller), an eye witness to the feat, in his book Seyahatname (a book of travel). The word Hezarfen means expert in 1000 sciences, in-fact, a reward of 1000 gold pieces was given to Hazarfen for his achievement.