Angle of.—The angle between the direction of the relative wind and the plane of symmetry of an aircraft.
Zero lift line: The limiting position in an aerofoil section of the line of action of the resultant air force when the position of the section is such that the lift is zero.
Transcriber’s Notes
[Page 59]—changed Farmborough to Farnborough
[Page 148]—changed Chatterick to Catterick
[Page 165]—changed condension to condensation
[Page 248]—Space left for unknown word [not below the rank of ]
[Page 251]—changed Clefden to Clifden
[Page 298]—changed Porta Delgada to Ponta Delgada
[Page 298]—changed reconnoissance to reconnaissance