The report describes a simplified 8-point strip theory method of calculating the free-air performance of a propeller up to tip Mach numbers near the velocity of sound. It is based on the assumptions of R. & M. 1674 and ...

Low-speed wind-tunnel tests were made to investigate the possibility of increasing the lift of a highly swept wing by ejecting high energy air from the leading edge. The results showed that lift gains were available, but ...

Flight measurements made by Mair in 1942, with the wake-traverse method, are used to extend to high Reynolds numbers (2 x 107) and a thick section (18 per cent t/c) the verification that the sub-critical creep (slow increase ...

It is important to study the effects of air condensation in hypersonic wind tunnels and to establish the degree of supersaturation achievable because savings in heating requirements or increase in Mach number may be achieved. ...

The preparation of this bibliography of Heat Transfer Instrumentation was undertaken by the authors at the request of the Heat and Mass Transfer Sub-Committee of the Aeronautical Research Council. It is based upon an initial ...

The case of a Random Gaussian process for which the root,mean-square value is itself variable is considered. A distribution for the root-mean-square value is assumed and an expression is derived for the resulting distribution ...

A detailed description is given of the development of a computer program for analysing the flow through axial, radial and mixed-flow turbomachines. The theory is based on the through-flow analysis given by Wu 1,2 and the ...

A method for reducing data on hovercraft fan performance is proposed which is expected to lead to a simplification of model and flight test procedures. The method is shown to be theoretically justified, and supporting ...

Summary. Tests have been made on the N.P.L. low-density tunnel on two pressure-plotting cones of 15 deg and 30 deg semi-vertex angle placed at zero incidence to the flow. The stream static pressure was varied between 20 ...

Summary. A survey has been made of the available literature on the aerodynamic loads associated with the external carriage of pylon-mounted stores adjacent to wing-fuselage combinations. The existing methods for estimating ...