Louis Bleriot's historic flight across the English Channel in 1909 took him how long?

Louis Charles Joseph Blériot (1 July 1872 – 1 August 1936) was a French aviator, inventor and engineer. He developed the first practical headlamp for trucks and established a profitable business manufacturing them, using much of the money he made to finance his attempts to build a successful aircraft. In 1909 he became world-famous for making the first flight across the English Channel. winning the prize of £1,000 offered by the Daily Mail newspaper.

At 4:15 am on the 25 July 1909, watched by an excited crowd, Blériot made a short trial flight in his Type XI, and then, on a signal that the sun had risen (the competition rules required a flight between sunrise and sunset), he took off at 4:41 for the attempted crossing. Flying at approximately 45 mph (72 km/h) and an altitude of about 250 ft (76 m), he set off across the Channel heading for Dover.

Blériot had not visited Dover to find a suitable spot to land, and the choice had been made by Fontaine, who had selected a patch of gently sloping land called Northfall Meadow, close to Dover Castle, where there was a low point in the cliffs. Once over land, he circled twice to lose height, and cut his engine at an altitude of about 20 m (66 ft), making a heavy "pancake" landing due to the gusty wind conditions; the undercarriage was damaged and one blade of the propeller was shattered, but Blériot was unhurt. The flight had taken 36 minutes and 30 seconds.