DESIGN ANALYSIS OF FINAL RECOVERY PARACHUTES B-70 ENCAPSULATED SEAT AND THE USD-5 DRONE
Abstract
A performance an lysis was conducted on two parachute recovery systems developed for the B-70 encapsulated seat and the USD-5 surveillance drone. Optimization of aerodynamic and textile design controlled deployment and opening, and us of a cluster of two independently deployed parachutes for the USD-5 drone resulted in a highly predictable performance, in the highest known drag area per weight ratio for the USD-5 syst , and a high velocity capability for the B-70 system. Equations were developed through data analysis for the opening process and the drag area increase versus time during parachute opening for extended skirt parachutes. These equations permitted a computer analysis of the total parachutes deceleration process with computer results showing less than 10% deviation from actual test data. The developed computer method may well be suitable for performance analysis of recovery processes using ribbon, ring slot, and other solid material type parachutes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1962
- Accession Number
- AD0277424
Entities
People
- L. I. Dimmick
- T. W. Knacke