TY - GEN AU - Harry, L. Morgan TI - Performance and deployment characteristics of a twin-keel parawing with various amounts and permeabilities of porous material in outer lobes T2 - D-5793 PY - 1970/// CY - Washington PB - NASA KW - Aerodynamics N1 - NASA TN -5790-99 Bound Vol.101193;Contents:TR10048-56 ER -