The theory of a parachute with an axial cord has been considered in a report by Richards1, who assumed that the parachute was a surface of revolution.nIt can be shown however, that a parachute of this type can be designed which is much stronger than the parachute discussed by Richards. The basic principle consists in allowing the canopy to bulge out between the rigging lines so that the curvature of the surface is great. In this way the pressure difference which a given fabric can withstand without failure is increased. The theory of such a parachute having no axial cord has already been worked out in R. & M. 23202. In the present report this theory has been extended to cover the case where the parachute has an axial cord.
展开▼
