September 3, 1973

September 3, 1973

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Aeronautical Engineering

French Study V/STOL Approach System

By Robert R. Ropelewski

Business Flying

690A Keeps Pace in Jet Environments

By Charles E. Schneider

Avionics

Computer Seen Assuming Tunnel Tasks

By Benjamin M. Elson

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4849
Aeronautical Engineering

French Study V/STOL Approach System

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

By Robert R. Ropelewski

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.

By Charles E. Schneider

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.

By Benjamin M. Elson

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.

By William H. Gregory

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.

By Philip J. Klass

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

By Craig Covault

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

By Laurence Doty

1819
Space Technology

Skylab May Find Deterioration Plateau

By Donald E. Fink

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

By Harold D. Watkins

August 271973 September 101973