Question

urgent and explain......Which one of the following aerofoils has a zero camber?

a) NACA0009

 

b) OFA102

 

c) NACA23012

 

4)Both Option ‘NACA0009’ and ‘NACA 23012’ are correct

and explain​

Answer 1

Answer:

Camber (aerodynamics)

Explanation:

In aeronautics and aeronautical engineering, camber is the asymmetry between the two acting surfaces of an aerofoil, with the top surface of a wing (or correspondingly the front surface of a propeller blade) commonly being more convex (positive camber). An aerofoil that is not cambered is called a symmetric aerofoil. The benefits of cambering were discovered and first utilized by George Cayley in the early 19th century.

Answer 2

Answer:

NACA0009

Explanation: