The air pressure on a cone moving at high speeds.—II

Abstract

Though the calculations are concerned only with the flow in the neighbourhood of an infinite cone, it was thought that the flow near a finite cone or near the nose of a bullet with a conical head might be comparable with the calculations. Accordingly, measurements of two kinds were undertaken. The surface pressures on cones were measured at the National Physical Laboratory, and photographs of a bullet with a 60° conical head were taken at various speeds by the Research Department at Woolwich.