2 1/2 years
The propellers on the plane were 8.5 feet long
For 12 seconds
12 seconds.
It lasted about 4 seconds.
The Wrights did NOT fly the 'first airplane' . The Wright brothers were the first to achieve controlled powered flight. Gliders, man-made wings, and balloons were around long before the flight of the Wright Brothers flying machine, the Flyer I, on December 17, 1903, at Kill Devil Hills near Kitty Hawk NC.
8.5 feet long. The two props were turned by a 12 hp engine.
12 secs 160 feet, 59 secs 850 feet
It lasted for 12 seconds.
1903 The Wrights didn't invent the first airplane. -They built and flew the first powered, controllable aircraft. -Many men had built different aircraft before them, but none were successful at long, controlled flight.
4 years
oproximently 7 years from start to finish