Trek Boy Parachute Escape

A boy from a famous city went inside a forest for trekking. There are many tasks which he have opted for as a part of his trip. One of them is paragliding. Instead of jumping from a cliff he should fly by using a giant fan which can lift the parachute. The fan is located in a special building from which he should fly. Help him start that giant fan so that he can fly the parachute