A method is developed of calculating the performance of a pair of contra-rotating airscrews, closely analogous to that described in R. & M. 2035 a for a single airscrew. The assumptions made are considered to be theoretically ...
V-g records have been obtained during the past year on Hoverfly I helicopters. Some data have also been obtained on a Hoverfly II and a Sikorsky S.51. The V-g records on these aircraft were obtained mainly during test ...
The degree of cooling that might be achieved in gas-turbine blades with simple internal air-cooling is surveyed with a view to pin-pointing the essential requirements for effective cooling with small quantities of cooling ...
The phenomenon known as 'air resonance', peculiar to helicopters with hingeless rotors, has been analysed and presented in as simple a manner as possible. In the air resonance case the 'body mode' with frequency close to ...
In continuation of the tests reported in R. & M. 2463, an investigation was made into the hydrodynamic qualities of a small flying boat (Saro 37) with a 1 : 20 double curvature fairing over the main step. As before, the ...
D. Lean; J. R. Stott; P. A. Hufton; D. Johnson(1947)
A series of requirements for deck-landing aircraft has been proposed and the suggested programme of tests has been carried out on two Naval aircraft. The results of these tests are given in this report, and their significance ...
Strain measurements in flight involve considerably more work than on ground tests and should be restricted to problems which cannot be solvedby ground tests. Limited experience available suggests that for most flight work ...
Three annular aerofoils suitable for use as short fan cowls on turbofan engines of high bypass ratio have been tested at zero incidence over a range of subsonic Mach numbers and also in static conditions. Comparisons are ...