Variable sweep aircraft wing Patent

Supersonic aircraft variable sweep wing planform for varying aspect rati

Variable sweep aircraft Patent

Development and characteristics of variable sweep wing control system for supersonic aircraf

Variable sweep wing configuration Patent

Variable sweep wing configuration for supersonic aircraf

A summary of NASA data relative to external-store separation characteristics

Aerodynamic characteristics of external stores in carriage position and their effect on separation characteristics under various delivery condition

Research related to variable sweep aircraft development

Development in high speed, variable sweep aircraft research is reviewed. The 1946 Langley wind tunnel studies related to variable oblique and variable sweep wings and results from the X-5 and the XF1OF variable sweep aircraft are discussed. A joint program with the British, evaluation of the British "Swallow", development of the outboard pivot wing/aft tail configuration concept by Langley, and the applied research program that followed and which provided the technology for the current, variable sweep military aircraft is outlined. The relative state of variable sweep as a design option is also covered

A study of cooperative relationships between small business development centers and public libraries

The purpose of this research was to examine the variety and levels of services provided to the clients of local Small Business Development Centers (SBDC) by selected medium-size and large public libraries in the Delaware Valley region. The twelve responding libraries reported a wide variety in the levels of service provided to the local small business community. Librarians reported participating with their local SBDC by providing facilities, reference materials, staff with special training and/or experience in business reference service, staff participation in programs, and combinations of these services. Three libraries reported providing no services at all to support SBDC programs and clients. Specific services and the advantages or disadvantages to the libraries as a result of these services are discussed

Recent Developments in the Law of the Sea 1982-1983

This Synopsis highlights major events occurring between December 1982 and December 1983 that affect the law of the sea. It discusses events occurring after the United Nations Convention on the Law of the Sea was opened for signature on December 10,1982, the continuing responsibilities of the Third United Nations Conference on the Law of the Sea, the United States\u27 refusal to sign the 1982 Convention, and its subsequent actions, and other significant events outside the conference

A Survey of Reynolds Number and Wing Geometry Effects on Lift Characteristics in the Low Speed Stall Region

This paper presents a survey of the effects of Reynolds number on the low- speed lift characteristics of wings encountering separated flows at their leading and side edges, with emphasis on the region near the stall. The influence of leading-edge profile and Reynolds number on the stall characteristics of two- dimensional airfoils are reviewed first to provide a basis for evaluating three- dimensional effects associated with various wing planforms. This is followed by examples of the effects of Reynolds number and geometry on the lift characteristics near the stall for a series of three-dimensional wings typical of those suitable for high-speed aircraft and missiles. Included are examples of the effects of wing geometry on the onset and spanwise progression of turbulent reseparation near the leading edge and illustrations of the degree to which simplified theoretical approaches can be useful in defining the influence of the various geometric parameters. Also illustrated is the manner in which the Reynolds number and wing geometry parameters influence whether the turbulent reseparation near the leading edge results in a sudden loss of lift, as in the two-dimensional case, or the formation of a leading-edge vortex with Rs increase in lift followed by a gentle stall as in the highly swept wing case. Particular emphasis is placed on the strong influence of 'induced camber' on the development of turbulent reseparation. R is believed that the examples selected for this report may be useful in evaluating viscous flow solutions by the new computational methods based on the Navier-Stokes equations as well as defining fruitful research areas for the high-Reynolds-number wind tunnels