Improved phase-shift-keyed detector

Improved phase-shift-keyed detector contains an active filter circuit which uses an operational amplifier and resistor-capacitor network. The detector is used in the Saturn space vehicle and Apollo telescope mount command systems to translate an analog signal from the command receiver into digital information for the command decoder

Apparatus for releasably connecting first and second objects in predetermined space relationship

A releasable apparatus that connects first and second space objects, such as a spacecraft and a space vehicle, in predetermined spaced relationship is described. The apparatus comprises at least one probe member mounted on the first object, having an elongated shank portion, the distal end of which is provided with a tapered nose portion. At least one drogue assembly is mounted on the second space object for releasably capturing the probe member upon the first and second objects being brought into close proximity with each other

Spacecraft radiator cover Patent

Development of spacecraft radiator cove

Airline meteorological requirements

A brief review of airline meteorological/flight planning is presented. The effects of variations in meteorological parameters upon flight and operational costs are reviewed. Flight path planning through the use of meteorological information is briefly discussed

Low-temperature embrittlement of Ti-6Al-4V and Inconel-718 by high pressure hydrogen

Notched specimens of titanium alloy and Inconel-718 exhibit little reduction of notch strength at certain low temperatures under 2000 lb/sq in. hydrogen, unnotched specimens are not embrittled at these temperatures. The degree of Inconel-718 embrittlement is lower than earlier observations under 1000 lb/sq in. hydrogen

Line cutter Patent

Piston in bore cutter for severing parachute control lines and sealing cable hole to prevent water leakage into loa

Opportunities and Challenges: The Caribbean Involvement in Free Trade Area ofthe Americas

This Article will examine the region\u27s participation in the process leading to the establishment of the FTAA, and the benefits and challenges associated with its involvement in this hemispheric undertaking. Part One of the Article sets out the rationale for the establishment of the FTAA and the structure of the negotiations. The section also identifies some elements of the unique nature of the proposed grouping. Part Two discusses the challenges facing Caribbean countries as they participate in multilateral trade negotiations, including the FTAA. In Part Three, the Article critically reviews the early stages of the integration process in the Caribbean and examines the most recent developments in the process, particularly in the context of the process of globalization and liberalization. This is followed by Part Four, which discusses the Caribbean\u27s participation in the FTAA

Improved control system power unit for large parachutes

Improved control system power unit drives the control surfaces of very large controllable parachutes. The design features subassemblies for determining control surface position and cable loading, and protection of the load sensor against the possibility of damage during manipulation