ASB-03-03 How Lift is Generated

How is lift created?

• By the passage of airflow over the upper and lower surface of an aerofoil

• It is only generated due to a change in speed that required a change in pressure, which in turn generates lift

• By a force acting in a downward direction upon the aerofoil

• Particles meet up again on the trailing edge of an aerofoil which creates lift

• Air moves faster over the wing

What shape is the cross section of a PYGMY drone propeller?

• Elliptical

• Aerofoil

• Delta

• Square

Why do drones have specific aerofoil configurations?

• To make them more visually appealing

• To simply allow for easier landings

• To give drones really epic speed

• To suit their roles and allow simple operation

The speed of airflow is higher over the (a)   surface of the aerofoil

Difference between mean camber line and the chord line?

• The mean camber line is a straight line joining the leading and trailing edges of an aerofoil. Chord line = a line joining the leading and trailing edges of an aerofoil, equidistant from the upper and lower surfaces.

• The mean camber line is a line joining the leading and trailing edges of an aerofoil, equidistant from the upper and lower surfaces. Chord line = a straight line joining the leading and trailing edges of an aerofoil.

• The mean camber line is a part of an aerofoil that hits the air particles first

• The mean camber line is straight and the chord line is wonky

In lower speed aircraft we would prefer ____ aerofoil shapes

(more camber)

• Thinner

• Thicker

• Square

• Rectangular

The angle of propellers on the PYGMY drone are

• Loose

• Acute

• Fixed

• 90 degrees

No. 36 Squadron:

• Delivers humanitarian aid

• Is all about safely detonating bombs

• Is a strategic transport squadron

• Is about air-to-air refueling

The MC-55A Peregrine is a modified

• C-17A Globemaster III

• KA350 King Air

• Boeing 747

• Gulfstream G550

Two methods to capture lift?

• (a+b)² = a² + 2ab + b²

• Bernoulli

• Explicit Formula for the Fibonacci Sequence

• Newton