AERADE Home
→
Aeronautical Research Council
→
Aeronautical Research Committee (1920-1945)
→
Browsing Aeronautical Research Committee (1920-1945) by Issue Date

Browsing Aeronautical Research Committee (1920-1945) by Issue Date

Now showing items 41-60 of 71

The calculation of the total and skin friction drags of bodies of revolution at zero incidence

A. D. Young (H. M. Stationery Office, 1939)

By a modification of the method used to calculate the profile drag of aerofoils a method has been developed for calculating the drag of smooth bodies of revolution. This method has been applied to three bodies at zero ...
Stalling tests on a Blenheim

G. E. Pringle (H. M. Stationery Office, 1939)

In extension of earlier flight tests it was required to investigate how accidental stalling and spinning of a Blenheim is affected by the setting of flaps, engine gills and throttles. The behaviour of the aircraft was ...
Effect on hinge moment of fitting strips near aileron trailing edge, of increasing aileron chord and of extending aileron to wing tip with an appendix on pressures over surface of control fitted with strips

A. S. Batson; J. H. Warsap (H. M. Stationery Office, 1940)

To find a method Of modifying ailerons so that a machine may be more responsive in roll. (1) Hinge moment was measured on a 1/2.25 scale 'Hurricane' aileron with the following modifications:- (a) Strips (depth 0.02 in. and ...
An orifice method of producing a high velocity stream

Binnie, A.M. (H. M. Stationery Office, 1940)

Earlier papers (Binnie 1938 and 1940) have dealt with the uniformity of the stream produced by a venturi flume and with the possibility of employing this device for testing model seaplane floats. If the velocity of the ...
The design of wind tunnel fans.

Collar, A. R. (H. M. Stationary Office, 1940-08-10)

Summary.—The present report is one of a series dealing with N.P.L. methods for the design of return flow wind tunnels. Reports already issued deal with the design of the Compressed Air Tunnel¹ and Open Jet Tunnels,² with ...
On the static thrust of contra-rotating airscrews

Collar, A. R. (H. M. Stationery Office, 1941)

Under static conditions or at low rates of advance, the blades of a single airscrew are often stalled, except perhaps for the outer sections. At first sight, it would appear that the same conditions must apply to the blades ...
On the periodic effects experienced by the blades of a contra-rotating airscrew pair

Collar, A. R. (H. M. Stationery Office, 1941)

The present paper discusses the effects on the performance of a contra-rotating airscrew pair of the oscillatory nature of the flow round the blades. The blade sections at a representative radius are developed into two ...
The effect of variation of gear ratio on the performance of a variable-pitch airscrew for a high-speed aeroplane

R. C. Pankhurst; J. F. C. Conn; R. G. Fowler; Love, E.M. (H. M. Stationery Office, 1941)

The effect of change of gear ratio has been examined in the case of a four-bladed airscrew of 14 ft. diameter absorbing 2,000 b.h.p. at 37,000 ft. at a forward speed of 450 m.p.h. with a given engine speed (3,700 r.p.m.). ...
The buckling of a square panel under shear when one pair of opposite edges is clamped, and the other pair is simply supported

D. M. A. Leggett (H. M. Stationery Office, 1941)

For an efficient design of spar with thin sheet web it is important to know the load which will just cause the web to buckle. As stiffeners divide the web into panels, it is required to find the buckling stress of rectangular ...
Derivative measurements and flutter tests on a model tapered wing

W. P. Jones; N. C. Lambourne (H. M. Stationery Office, 1941)

The influence of various parameters, such as wing density and flexural stiffness on the critical speed of a tapered wing was investigated theoretically in R. & M. 1782 using certain fundamental aerodynamic derivative ...
On the stressing of polygonal tubes with particular reference to the torsion of tapered tubes of trapezoidal section

H. L. Cox (H. M. Stationery Office, 1942)

A general method for stressing polygonal tubes is described and applied to the torsion of parallel and tapered tubes of rectangular and trapezoidal section. It is assumed that the shape of the tube is maintained by a limited ...
Propellors in high-speed dives

J. F. C. Conn; Love, E.M. (H. M. Stationery Office, 1942)

The performance of a variable-pitch, 3-bladed propellor has been calculated for conditions of fixed power absorption, fixed rotational speed and varying advance speed. Curves of efficiency and power-loss ratios are given ...
Design and development of a torsiograph having a serrated-condenser pick-up unit

B. C. Carter; J. R. Forshaw (H. M. Stationery Office, 1942)

The instrument that forms the subject for this report has a condenser pick-up unit to which a carrier wave is applied : it measures, directly, instantaneous angular displacements due to shaft twist. The pick-up originated ...
The buckling of a long curved panel under axial compression

D. M. A. Leggett (H. M. Stationery Office, 1942)

In modern aeroplane design a detailed knowledge of the behaviour of thin panels is very necessary. The problem of flat panels may be regarded as largely solved. This is not true, however, of curved panels and the object ...
The Equations of Hydrodynamics in a Very General Form

Cope, W F (His Majesty's Stationery Office, 1942-11-01)
The difference between the spinning of model and full-scale aircraft

G. E. Pringle (H. M. Stationery Office, 1943)

It was required to review the technique of model spinning tests with the object of improving the reliability of model standards as applied to full scale.
The calculation of aerodynamic loading on surfaces of any shape

Falkner, V. M. (H. M. Stationery Office, 1943)

The object of the report is to establish a routine method for the calculation of aerodynamic loads on wings of arbitrary shape.
Frequency "admittance" curves for coupled engine crankshaft (torsional) and contra-revolving propeller (flexural) vibrations

J. Morris (H. M. Stationery Office, 1943)

In this report the "admittance" method, for dealing with coupled vibrations of engine crankshaft propeller systems, is adapted to cover the case of contra-revolving propellers. The treatment is quite general in that the ...
Effect on aerofoil drag of boundary-layer suction behind a shock wave

Fage, A.; R. F. Sargent (H. M. Stationery Office, 1943)

To measure, at Mach numbers near the critical value, the reduction in drag due to boundarydayei suction on the upper surface of an aerofoil. To determine whether this reduction can be obtained with an economic use of power. ...
Torsiograph observations on a merlin ii engine, using a serrated-condenser pick-up, with five different pitch settings of the propeller blade

B. C. Carter; J. R. Forshaw (H. M. Stationery Office, 1943)

This report is based upon the first application of the torsiograph described in Reference I, the observations being made in the course of development of the instrument. Subsequent applications have been to Merlin 61 and ...

Browsing Aeronautical Research Committee (1920-1945) by Issue Date

Browsing Aeronautical Research Committee (1920-1945) by Issue Date

Search AERADE

Browse

All of AERADE

This Community

My Account