The report opens with a brief survey of various blade profiles and their two-dimensional cascade performance characteristics. The requirements of the different stages of an axial compressor are then discussed. This is ...

Under review

An improved method of solving the rotor blade flapping equation is described which avoids the laborious computation of those at present available. Successive approximations to the solution are made but the rapid convergence ...

An attempt is made to explain the observed torsional oscillations of an airscrew by means of the 'wake' theory. It is shown that the aerodynamic torsional damping becomes negative at certain blade angles and frequencies; ...

The paper describes an investigation of the effect of structural damping in the torsion mode on wing flutter with the object of finding circumstances in which damping reduces the flutter speed. The drop in flutter speed ...

Hydrofoil struts, such as might be used for supporting a model in hydrodynamic experiments, are liable to failure through divergence or flutter. This makes the problem of designing a satisfactory strut particularly difficult ...

The calculation of test factors is reviewed. The distribution, of the population from which the test sample is taken is assumed to be Gaussian. Three cases are discussed, in which (i) there is no prior knowledge of the ...

Basic results are given of measurements in the Royal Affcraft Establishment 10-ft × 7-ft Subsonic Wind Tunnel over a range of lift coefficient at Mach numbers up to 0.93, the Reynolds number being 1.75 million. Though a ...

An accurate method of solution is developed for steady incompressible laminar boundary layers whose main-stream velocity U(x) is expressible as an odd polynomial in distance x measured along the wall. The velocity distribution ...

Under review