New version magic-formulae introduced and analysed in Bamms

Influence of chromic acid anodizing on the fatigue strength of overaged 7000 series aluminium alloys. Part I: Surface attack after anodizing

The influence of different variables in the chromic acid anodizing process on the surface attack and the thickness of the anodizing layer was investigated for aluminium alloy 7050-T7451 (formerly T73651) plate, 7075-T7351 plate, 7075-T6 forgings and 7075-T73 forgings. A preliminary investigation was carried out to enable the selection of a...

Comparison of Fokker F28 wind tunnel and flight data; a summary

For an accurate prediction of aircraft characteristics the wind tunnel tests are of paramount impoitance. Therefore the significance of the test results and available extrapolation techniques have to be investigated as thoroughly as possible. For this reason a program for comparing wind tunnel and flight test data of the Fokker F-28 was set up,...

The aerodynamic design and testing of a lifting swept wing-body configuration with shock free wing flow at M=1.20

A wing-body configuration has been designed, with the intention of giving economical cruise characteristics at low supersonic speeds. The design aim was to reduce the wave drag as far as possible by designing the wing and body in such a way that boundary layer separation and shocks on the wing are avoided, A wind tunnel model was made according...