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Part 4 of the "Science of Sailing" addresses the phenomena and drag arising from the air-water interface experienced by sailing craft. The topics that are dealt with are wave causation and its consequences on drag, the properties of regular waves in deep and shallow water, the wave pattern generated by the hull of sailing craft, wave drag, interference of wave systems, running trim and sinkage/rise, breaking waves, spray, wind-generated waves and spectra, motions displayed by sailing yachts, wave-added drag, surfing behaviour, cavitation, and ventilation.
File characteristics: Software; 400 files on diskette; ASCII character set; 2 diskettes; Physical description: 3 1/2 diskette high density; System requirements: Mainframe or workstation; VMS; Fortran computer, 3MB of storage. A digital computer program which calculates static stability, high lift and control and dynamics derivative characteristics using the methods contained in the USAF Stability and Control Datcom (rev. Apr 76).
"The seven papers in this publication relate to software tools for design; analysis of airplanes; programming tools; languages and programming environments; commercial off-the-shelve tools for aerodynamics, stability and control; and performance and detailed design."--SAE Web site (www.sae.org).
This report describes a digital computer program that calculates static stability, high lift and control, and dynamic derivative characteristics using the methods contained in sections 4 through 7 of the USAF Stability and Control Datcom (revised January 1974). Configuration geometry, attitude, and Mach range capabilities are consistent with those accommodated by the Datcom. The program contains a trim option that computes control deflections and aerodynamic increments for vehicle trim at subsonic Mach numbers. Volume I is the user's manual and presents program capabilities, input and output characteristics, and example problems. The program is written in ANSI Fortran IV. The primary deviations from standard Fortran are Namelist input and certain statements required by the CDC compilers. Core requirements have been minimized by data packing and the use of overlays. User oriented features of the program include minimized input requirements, input error analysis, and various options for application flexibility.