MINISTRY OF AVIATIOid
نویسنده
چکیده
1959 SUMMARY A method is given for representing the results of wind-tunnel tests of fan wings in a non-dimensional form suitable for the analysis of transition mQtion3. The procedure takes into account the effect on power requirements of variation of thrust engine loading in relation to that of the fan. As an example, results are displayed of tests of a rectangular wing of aspect ratio I with fan located at 0.354 chord. It appears that transition from hovering to wing-supported flight is more economically made at the highest angle of incidence of the tests, 12'. Further research is required to ascertain how much this result is affected by variations in wing andfan geometry. The effects of an 0.3g horizontal acceleration and of deflection of fan efflux by a flat plate cascade on the power requirements are also considered.
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