April 19, 1965

April 19, 1965

View Full Issue Table of Contents
SAFETY

Stable Stall Ruled Bac 111 Crash Cause

AERONAUTICAL ENGINEERING

Ge Aims J79/j1b at Future F-4 Series

By Michael L. Yaffee8 min

AVIONICS

Constant-frequency Ac. System Developed

By Philip J. Klass7 min

View Full Issue
More Features
9495
SAFETY

Stable Stall Ruled Bac 111 Crash Cause

(The British Ministry of Aviation has issued the following report on an accident that occurred during stall testing of a British Aircraft Corp. BAC 111 [AW&ST Apr. 5, p. 50]. Seven persons, two crew members and five test personnel, were killed when the aircraft, G-ASGH, failed to recover from a stall and crashed at Cratt Hill near Chicklade, Wiltshire, on Oct. 22, 1963,—Ed.)
5253
AERONAUTICAL ENGINEERING

Ge Aims J79/j1b at Future F-4 Series

Evendale, Ohio—General Electric Co.’s Large Jet Engine Dept, has developed an improved version of its J79 turbojet engine and is grooming it for use in future versions of the McDonnell F-4 Phantom 2 strike fighter. The company designates the new turbojet J79/J1B.

By Michael L. Yaffee8 min

8485
AVIONICS

Constant-frequency Ac. System Developed

Monopoly which hydraulic constant-speed alternator drives have enjoyed in the field of aircraft power generation for more than a decade is being challenged by a recent development which uses semiconductor devices instead. Known as “variable-speed constant frequency,” the new type generation system is more often called by its acronym VSCF and pronounced “viscuf”.

By Philip J. Klass7 min

6465
SPACE TECHNOLOGY

Pace of Advanced Booster Study Drops

Huntsville, Ala.—Emphasis on funding for the Apollo lunar landing program is reducing the support available in the National Aeronautics and Space Administration for studies of advanced space boosters and their rocket propulsion system.

By George Alexander6 min

2021
EDITORIAL

Judging Research and Development Payoff

U. S. spending growth for research and development excites a continuing debate on its management, both in government and private sectors. Involved are questions not only of economics, but also approaches—i.e., should components be first developed and then collected into a system, or should the system be conceived first and the components then developed to fit.
4243
AIR TRANSPORT

Larger 'guppy' Aimed at S-4b Transport

Los Angeles—Aero Spacelines—operator of the Boeing 377 (PG) Pregnant Guppy, a modified Stratocruiser used for hauling large space hardware—has a larger turboprop aircraft under construction which is designed to accommodate the S-4B stage of the Saturn launch vehicle.

By Harold D. Watkins5 min

3839
AIR TRANSPORT

Monroney Urges Federally Financed Sst

Danger seen to domestic economy, payments balance and national prestige in failure to dominate market.

By James R. Ashlock5 min

2627
AERONAUTICAL ENGINEERING

Usaf Orders Production F-llls; Tf30 Again Fails Supersonic Test

By George C. Wilson4 min

8687
AVIONICS

Reliability Study Cites Transistor Duty Cycle

New York—Reliability of transistorized avionic equipment may depend more upon the percentage of time it is turned off than on the total time it is operated, according to a recent analysis by International Business Machines Corp. While the results of this IBM study may seem surprising at first glance they appear to confirm the findings of an earlier analysis by Arinc Research Corp. on vacuum tube equipment, sponsored by the Navy (AW&ST Sept. 3, 1960, p. 81).
2627
SPACE TECHNOLOGY

Usaf to Launch 2 Used Nasa Geminis

Ballistic, orbital flights set to qualify MOL systems; Titan 3 is termed ready for variety of space payloads.

By Edward H. Kolcum4 min

April 121965 April 261965