A re-assessment of a generally accepted theory of parachute stability has been made with the object of clarifying the assumptions used in its derivation and exposing deficiencies in previous treatments. Some new, equations ...
Existing theories for the Stanton tube are critically reviewed, and the paper then outlines a simple method which predicts the calibration function at high Reynolds numbers to the right order of magnitude.
A description is given of the three-dimensional shock-wave recorder which has been used to investigate wind-tunnel interference on a sting-mounted wing having 50 deg of sweepback. Diagrams of the shock-wave patterns round ...
Accessible information about the performance of existing wind tunnels is far from being adequate. Once a tunnel is constructed the subject too often becomes a matter of low priority or else such information as is obtained ...
In general, conventional compressor stages are designed by the cascade method, while high stagger low solidity ducted fans are designed on modified isolated aerofoil theory. The purpose of these notes is to provide a basis ...
Calculations have been made of the changes in rotor speed following engine failure on a typical helicopter in hovering flight. Various time functions for the collective pitch operation are considered. The results are in ...
Linear differential equations whose coefficients are functions of the independent variable are now assuming importance in aeronautics in the discussion of the motion following a small disturbance in a specified accelerated ...
The downwash induced by planar vorticity distributions has been computed by exact linear theory and by the R.A.E. Standard Method to examine the accuracy of the approximate method. The results on wings of infinite span ...
This report briefly describes salient results obtained during commissioning Or the stagnation pressure control system of the N.P.L. 15 in x 10 in (38.1 cm x 25.4 cm) blowdown wind tunnel. The very different problems of low ...