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The prevention of flutter of spring tabs

Collar, A.R. (author)

The present report gives a correlation of the results of earlier researches into the prevention of flutter of spring tabs. The restrictions on tbe way in which tab masa-balance must be applied , which are given in the earlier work, are shown to be very simply derivable from the conditions neceesary for the elimination of elastic end inertia...

report 1943

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Some notes on methods of achieving mass-balance

Collar, A.R. (author)

report 1945

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Mass-balance for spring tab flutter prevention

Collar, A.R. (author), Sharpe, G.D. (author)

The present paper advances a formula which defines the degree of mass-balance necessary for the avoidance of spring tab flutter. The formula comprehends ,rithgt itself the requirernent for the limiting length of the mass-balance arm which has been previously given. It shows further that with a tab of light construction statie unbalance of the...

report 1945

document

Consideration of the effect of tab dimensions on spring tab flutter

Sharpe, G.D. (author)

The present paper is in the nature of a supplement to Ref.1 and develops a criterion for the avoidanee of spring tab flutter which is similar in form to that already suggested in that report but includes a factor to allow for the geametry of the system. This factor is derived on the basis of calculations made to determine the effect of the size...

report 1946

document

On the analysis of statically indeterminate structures

Hemp, W.S. (author)

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

report 1946

document

Ignoration of distortional co-ordinates in the theory of stability and control

Duncan, W.J. (author)

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

report 1946

document

Note on the application of the linearised theory for compressible flow to transonic speeds

Robinson, A. (author)

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

report 1947

document

Note on the dynamics of a slightly deformable body

Hemp, W.S. (author)

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University

report 1947

document

Technique of the step-by-step integration ordinary differential equations

Duncan, W.J. (author)

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

report 1947

document

The effect of the sweepback of Delta wings on the performance of an aircraft at supersonic speeds

Robinson, A. (author), Davies, F.T. (author)

The variation with sweepback of the total drag of an aircraft in level flight at supersonic speeds is calculated. It is shown that sweepback is not uniformly beneficial but that in general the optimum amount of sweepback depends on the design speed and altitude. The College of Aeronautics was founded in 1946 and was granted university status in...

report 1947

document

Wing body interference at supersonic speeds

Kirkby, S. (author), Robinson, A. (author)

The increment in lift due to wing-body interference at supersonic speeds is calculated approximately for an untapered wing, without sweepback. The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

report 1947

document

Note on the velocity and temperature distributions attained with suction on a flat plate of infinite extent in compressible flow

Young, A.D. (author)

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

report 1947

document

Application of the linear perturbation theory to compressible flow about bodies of revolution

Young, A.D. (author), Kirkby, S. (author)

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

report 1947

document

Bound and trailing vortices in the linearised theory of supersonic flow, and the downwash in the wake of a delta wing

Robinson, A. (author), Hunter-Tod, J.H. (author)

The field of flow round a flat aerofoil at incidence can be regarded in linearised theory as the result of both bound and trailing vortices for supersonic as well as for low speed flight. This leads to a convenient method, given the lift distribution over an aerofoil, for calculating the flow round it at supersonic speeds. As an application of...

report 1947

document

On source and vortex distributions in the linearised theory of steady supersonic

Robinson, A. (author)

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

report 1947

document

Assessment of errors in approximate solutions of differential equations

Duncan, W.J. (author)

The term assessment is applied to any process which enables us to set rigid bounds to the error or to estimate its value. It is shown that upper and lower bounds can be assigned whenever the Green' s function of the problem is one-signed; this is true in many important problems. Another method is applicable to step by step solutions of ordinary...

report 1947

document

The aerodynamic derivatives with respect to sideslip for a delta wing with small dihedral at supersonic speeds Addendum

Robinson, A. (author), Hunter-Tod, J.H. (author)

Expressions are derived for the sideslip derivatives on the assumptions of the linearised theory of flow for a delta wing with small dihedral flying at supersonic speeds. A discussion is included in the appendix on the relation between two methods that have been evolved for the treatment of aerodynamic force problems of the delta wing lying...

report 1947

document

On a theory of sandwich construction

Hemp, W.S. (author)

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

report 1948

document

Prediction of wing structure weight

Grinsted, F. (author)

Expressions for wing structure weight are derived in terms of the important parameters in wing structural design. The main wing structure is treated by relating it to an ideal structure and a measure of structural efficiency is obtained. Though the expressions are derived froml past experience it is thought that they can be applied to new forms...

report 1948

document

Simple formulae for predicting the weights of wing, fuselage, and tail unit structures

Grinsted, F. (author)

The weights of wing, fuselage, and tail unit structures are expressed independently by simple formulae, by means of which predictions can be made quickly of the structure weights of project designs. The formulae are in terms of important dimensions and design features, and have been derived by analysis of the weights of current civil and...

report 1948