Pressure Distribution Measufuxents on a Sefues of Slender Delta Body Shapes at Mach Wez3 of 6*85 and 8.60

SUMMARY Results are given of a wind tunnel programme made to study the pressure distributions, mainly on the windward surfaces, of a series of simple body shapes, over a range of angles of incidence up to 29 degrees. It was found that the comparison of experimental pressure distributions with values calculated from various inviscid flow theories and approximations, was complicated by the non-independence of upper and lower surface flow fields, and by boundary-layer-displacement effects. From the few measurements made of upper surface pressure distributions , quite large differenoes in behaviour were observed between Mach numbers of 6-85 and 8*60. Recommendations are made in regard to future experiments.