How are airplanes built?

Answer 1

The aeroplane starts out by being drawn out on paper by an aeronautical engineer. He designs the engine, airframe and the interior and avionics on the dashboard the pilots use. He also designs all the electrical and hydraulic lines and air flow controls.

Then the people who build the plane follows his drawing designs and start with the Airframe ... like the skeleton of the plane. Then they begin adding the metal body work and wings and start on the interior of the plane. They test the plane once it is built. That is called the prototype of that plane. A test pilot checks it for flying ability, stresses on the plane, handling of the plane and if the avionics function correctly, if the wheels come down properly and if it brakes properly. He has to be certain all the flaps on the plane work right and he also checks to see how fast the plane can go and how high. If the prototype of the plane passes all the testing regiments then they aeroplane company puts it up for sale. Once there are enough orders for planes they start building them in assembly order.