June 29, 1998

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HEADLINE NEWS

Relay Aircraft Enable Cell ‘Network in the Sky

MOJAVE, CALIF. A recent flight demonstration over Southern California validated the concept of using high-altitude aircraft as cellular telephone relay nodes. Consequently, airborne networks offer a relatively low-cost alternative to satellite constellations or hundreds of groundbased towers for wireless communications, particularly in developing nations.

By WILLIAM B. SCOTT

HEADLINE NEWS

U.S. Broadens Probes Of China Tech Transfer

WASHINGTON Federal investigators have broadened their examinations of the possible transfer of sensitive U.S. space technology to China. They are looking at an additional launch failure review and whether American engineers asked leading questions of their Chinese counterparts.

By JOSEPH C. ANSELMO,JAMES R. ASKER

HEADLINE NEWS

Lewis Failure Blamed On Design Flaws

WASHINGTON A failure review board is blaming the loss of NASA’s Lewis satellite on a “flawed” design of its TRW attitude control system and inadequate monitoring of the spacecraft during early operations. The panel’s report, released last week, also highlights the pitfalls that can accompany NASA’s “faster, better, cheaper” approach when the agency and its contractors don’t communicate properly.

By JOSEPH C. ANSELMO

ENGINES '98 SHOW REPORT

Three CIS Engines Vie For MiG-AT Propulsion

MOSCOW Three CIS engine groups are now competing to power Russia’s MiG-AT new-generation advanced trainer. The three engines include two new powerplants and one upgrade. Additionally, two prototype ATs have flown 500 hr. with the Snecma/Turbomeca Larzac 04, and the French engine is expected to complete CIS certification in October this year.

By KEN FULTON

June 221998

July 61998

June 29, 1998

June 29, 1998