PART I. Simple, Approximate Formulae for General Application. PART II. Note on the Blockage Correction for Streamline Bodies of Revolution

Owing to improvements in aerodynamic design it is desirable to be able to predict profile drag accurately. A method of calculating the profile drag of aerofoils is developed and is applied to investigate the drag of a flat ...

No systematic measurements of the efficiency of conical diffusers have been made since Gibson's tests in 1910. The present investigation was made to check this early work, and to study the variation of efficiency with ...

A short account and the results of a theoretical investigation (cf. Ref. 1 and 2) of the velocity field induced by a lifting rotor is given. The computation is based on the assumptions that the rotor is lightly loaded and ...

Over a period of years a considerable amount of stalling research on various aeroplanes was completed at the Royal Aircraft Establishment and it was considered desirable that the main results should be summarised and ...

Measurements of the thrust, torque and flapping angle for a 12-ft diameter rotor over a range of blade angle, shaft inclination and tip-speed ratio have been made to give information on the validity of the standard rotor ...