Holloway, W. G.; Kumar, P. E.; Osbourn, W.(College of Aeronautics, )
This note covers the development of two strain-gauge balances for use
on the Whirling Arm Facility of the College. The main requirements for
this balance were:- (a) to withstand 700 lbs of sideload without it
interfering ...
Comparatively little has been published on ‘heavy current’ fluidic
devices yet their advantages suggest that they have a place in aircraft
fluid systems. As a first brief step towards assessing their value to
the aircraft ...
Ashill, P. R.; Osbourn, E. W.(College of Aeronautics, )
The calibration of the flow in the channel of the Whirling Arm is
described and results for pitch yaw and wind speed are presented. These
indicate that the flow is quite acceptable for the type of model tests
envisaged.
Lefebvre, Arthur Henry; Norster, E. R.(College of Aeronautics, )
Introduction and Summary
Perhaps the most important and, at the same time, most difficult
Problem in the design and development of gas turbine combustion chambers,
is that of achieving a satisfactory and consistent ...
Flight tests on the Handley Page suction wing showed that turbulence,
generated at the wing root, can propagate along the leading edge and
cause the whole flow to be turbulent. The flow on the attachment line of
a swept ...
The longitudinal dynamic response characteristics of a twin-engined
propeller-driven aircraft determined from flight measurements are presented
and compared with predictions based on theoretical studies. Transient
responses ...
Experimental determination of the natural frequencies of a stiffened
cantilever plate reveals the simultaneous excitation of two normal modes
of vibration.
Comparison is made between the experimental nodal pattern and ...
Introduction
Since the College of Aeronautics was founded in 1946 aeroelasticity
has been the subject of much research by both students and staff in the
Departments of Aircraft Design and Aerodynamics.
It is not the present ...
The old Whirling Arm o-r the National Physical Laboratory has been
re-erected at the College to provide a facility for the study of ground effect
on wings, and other craft operating near the ground. The model is mounted
on ...
This note describes the measurement of the moments of inertia in roll,
pitch and yaw of a Hawker-Siddeley (de Havilland) Dove Mk. 5 aircraft, using
a spring-restrained oscillation technique. Using the present equipment ...
Analytical expressions are obtained for the optimum
shapes which minimise the drag of a slender axisymmetric
body in free-molecular flow, provided the drag expression is
simplified using the slenderness assumption. The ...
The problem of longitudinal stability and control of an airframe,
having nonlinearity in its principal aerodynamic characteristics, is
considered. It is shown that the equation describing the response in
w, and thus the ...
In 1963 K.G. Wilkinson, then Assistant Chief Engineer of British
European Airways, emphasised the lack of formal engineering education in
the maintenance and operation of aircraft. This report describes the
nine-month ...
In the theory of two-dimensional Michell optimum structures, there arises the problem of calculating the lines of principal stresses and the virtual displacements which are analogous to slip lines and velocities in
plane ...
Theoretical and experimental research into the aerodynamics of
ram wings is reviewed. The theories of two-dimensional and finite
wings in ground effect are discussed and mention is made of the various
experimental techniques ...
Craven, A. H.; Alexander, A. J.(College of Aeronautics, )
Wind tunnel tests have been made at M = 2 on a 75° swept delta wing
in order to study the progressive breakdown of the leading edge vortices,
which occurs at high incidence. The incidence at which vortex breakdown
occurred ...
Jones, D. A.; Reason, B. R.(College of Aeronautics, )
An investigation has been carried out, using statically loaded
steel and 'Perspex' discs, into elastic displacements occurring at the
axial extremities of the Hertzian flat.
By employing the technique of 'Photostress', ...
Aircraft Design has been taught at the College of Aeronautics since
1946. The course is at postgraduate level and is of two years duration.
In the first year the students are given three exercises in component
design which ...
This note describes the measurement of the moments of inertia, of
a Morane-Saulnier M.S.760 'PARIS' aircraft. The moments of inertia in
pitch, roll, and yaw were measured by the spring-constrained oscillation
method. The ...
A correlating parameter for gas turbine combustion performance, based
on a 'burning velocity' theory for primary zone combustion is derived using
a more direct approach than that originally employed by Greenhough and
Levebvre.1 ...