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September 3, 1973

Aeronautical Engineering

French Study V/STOL Approach System

Business Flying

690A Keeps Pace in Jet Environments

Avionics

Computer Seen Assuming Tunnel Tasks

4849

Aeronautical Engineering

French Study V/STOL Approach System

Automatic approach coupler being evaluated on helicopters permits low altitude, low speed instrument approaches

5657

Business Flying

690A Keeps Pace in Jet Environments

Washington—Improvements in Rockwell International’s new Turbo Commander 690A, twin turboprop-powered business aircraft, make it more compatible than its predecessor, the 690, with the high-speed environment of jet transports, both in terminal areas and at high altitudes.

1415

Avionics

Computer Seen Assuming Tunnel Tasks

Moffett Field, Calif.—Emerging performance figures for Illiac 4, a giant new digital computer, could portend a revolutionary change in the tools aerodynamicists will use in the development of future aerospace vehicles. Some scientists here at the National Aeronautics and Space Administration Ames Research Center, where the computer is installed, regard Illiac’s speed as a clue to the eventual takeover by large-scale computers of most of the fluid-flow simulation role traditionally played in the aerospace field by wind tunnels.

4243

Space Technology

Comet Missions Aim at Nuclei Studies

Highest priority scientific measurements of a comet are concerned with the nucleus, and one reason for interest in a spacecraft rendezvous mission to the comet Encke is its comparatively low dust emission rate that permits a close approach.

5455

Avionics

Technology Expands Satcom Capacity

Clarksburg, Md.—New technology now emerging from Comsat Laboratories research and development activities promises to greatly increase the capacity of communications satellites. Typical of these developments are: Digital Television Communications (Ditec) system, which can double the number of TV channels obtainable from a satellite transponder without perceptible degradation in picture quality.

1213

Space Technology

Apollo/Soyuz Experiments Set

Science package for joint space missions covers 12 major areas, but only four will necessitate participation of both spacecraft

2021

Air Transport

CAB Studies Answer to Court

New brief being prepared to support Board action on IATA agreement; airlines also may file comments on the case

1819

Space Technology

Skylab May Find Deterioration Plateau

4243

Space Technology

Spacecraft Observations Spur Comet Exploration

Rising scientific interest in cometary exploration by spacecraft probes has been stimulated by both ground-based and earth-or-biting spacecraft observations in the last four years, particularly by those from the Orbiting Astronomical Observatory OAO-2 mission and the Orbiting Geophysical Observatory OGO-5 mission. Two broad areas are involved:
2223

Air Transport

CIA Control of Southern Alleged in Purchase Case

August 271973 September 101973