The routine testing of aircraft-type compressors--in the main, axial-flow, multi-stage compressors--requires a compromise between research accuracy and the practical considerations. This test code is the outcome of a survey ...

This report describes the flight tests made at the Royal Aircraft Establishment on the Rolls-Royce Flying Bedstead to investigate the stability and control problems of a hovering jet-lift aircraft. Tests made with varying ...

The paper gives a theory of vortex flow in turbo-machines in which the basic assumption is made that the axial-velocity profiles always belong to a family governed by a single parameter, λ. This parameter is a measure of ...

Balance measurements of lift, pitching moment and thrust on an aspect-ratio 6 half-model wing and body in the N.P.L. 13 ft × 9 ft Wind Tunnel are discussed, and compared with theoretical estimates. The experimental ...

Calculations have been made to investigate the effects on wing flutter of flexibility between a wing and an added mass. Flexibilities in pitch, roll, and yaw have been separately investigated for a mass carried at the tip ...

This report presents an account of the demand made by solar radiation pressure 6n the attitude-control system of an earth satellite whose external configuration is in the shape of a rectangular prism, the surfaces being ...

Apparatus is described for the measurement of shock attenuation in channels of several configurations. A circular-bore channel, a square-bore channel and converging and diverging channels have been investigated. Measurements ...

An analysis is given of the deformation under normal loading of a plate tapered symmetrically in planform with edges either clamped or simply-supported. The thickness may be constant or may vary along the plate as a power ...

One possible method of reducing jet noise at take-off is the use of an ejector in which the propelling nozzle discharges into a shroud and thereby induces a secondary flow. The present report describes an experiment on the ...

A theoretical analysis of a gust alleviator using the spectral technique is made and the results compared with experiment. The comparison is made in terms of the frequency of occurrence of normal accelerations at the ...