How do aeroplanes How do aeroplanes move??move??

The historic flashbackThe historic flashback

Men and flights…Men and flights…

• Greek Myth: Daedalus and Icarus

• 1485: Leonardo da Vinci – Ornithopter

• 1783: Montgolfier brothers – First Hot Air Balloon

• 1903: Wright brothers – The first flight

• 21st Century: Boeing 787 and Stealth Fighter

• Science…

The four forces during the flightThe four forces during the flight

Weight – Lift –Thrust - Drag

The four forces act in the aeroplane during the flight and each one is the opposite of the other.

Drag is the force which is created when a solid moves on a liquid (air).

Weight is the opposite of liftWeight is the opposite of lift

Weight pushes the aeroplane towards the centre of the Earth.

In order for the airplane to accelerate during the flight, thrust has to be of higher rate than drag.

In order for the aeroplane to take off, lift has to be of higher rate than weight.

Which aeroplane accelerates?

Which one reduces speed?

Parts of the Aeroplane

AIRPLANE PARTS

Roll Around Longitudinal AxisRoll Around Longitudinal Axis

Yaw Around the vertical AxisYaw Around the vertical Axis