Parachute drag and radial force

Experimental investigation of addisd mass during parachute deceleration - preliminary results -

: This document serves as the third revision of the USAF Parachute Handbook which was first published in 1951 The data and information represent the current state of the art relative to recovery system design and development The initial chapters describe representative recovery applications, components, subsystems, material, manufacture and testing The final chapters provide empirical data and analytical methods useful for predicting performance and presenting a definitive design of selected components into a reliable recovery system (Author)

Recovery Systems Design Guide

A method for predicting deployment and inflation of reefed ribbon parachutes is presented. The method is based on integration of axial and radial momentum equations developed in the paper. Axial and radial forces are assumed to be describable by drag and radial force coefficients. Computer solutions of the equations are compared to measured parachute loads and to parachute mouth and maximum diameters from tests of 23and 76-ft-diam conical ribbon parachutes. Comparison of load histories indicates that snatch loads depend to a large extent on deployment bag design and packing influences. Computed loads and parachute size histories for the inflation process compared favorably with flight data. The concept of a radial force coefficient appears to have considerable merit as a means of computing inflation for most types of parachutes.

Parachute drag and radial force

Citations

Experimental investigation of addisd mass during parachute deceleration - preliminary results -

References

Recovery Systems Design Guide

Analysis of Deployment and Inflation of Large Ribbon Parachutes

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