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Canberra Times in Canberra, Australian Capital Territory

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Articles on This Page

This newspaper page contains 3 articles. Subscribers can read the full text of each article.

Newspaper

Canberra Times

Location

Canberra, Australian Capital Territory, Australia

Date

Aug 07, 1969

Page

7

Two Supersonic Problems Challenge Jet Makers

Clarence L. Kelly Johnson of Lockheed outlines two main hurdles for future supersonic travel clear air turbulence and sonic booms. His briefing notes the industry may lack time to find viable solutions, with secrecy and high altitude aircraft projects like the YF-12A and SR-71 shrouded in mystery.

Clarence L Kelly CAA Gary Powers Soviet Union USAF Raaf Fast Sale Victoria Australia New Zealand Johnson Kelly" Johnson

CAT and booms threaten future high altitude jets

The article discusses clear air turbulence CAT and sonic booms as major risks for high altitude jet travel. It notes CAT occurs at higher altitudes than thought, threatens stability, and could impede supersonic transports SSTs. It cites Japan’s 1966 BOAC incident and Johnson’s remarks on turbulence frequency being lower but present at high altitudes. Market studies by BAC Sud hint Concorde may grow long routes if sonic booms are accepted, but CAT remains the dominant challenge for industry safety and viability.

Japan Mt Fuji Johnson Bacsud Kelly” Johnson

The Australian SAS in Vietnam War Test

The SAS from Western Australia fights in Vietnam for three years, using four to five man patrols on long reconnaissance and ambush missions. They operate from Nui Dat under task force command, rely on stealth, speed, and hot extractions, and have suffered few casualties while inflicting heavy Vietcong losses.

Vietcong Special Air Service SAS Vietnam Sabre Nui Dat Borneo Phuoc Tuy Beesley RAAP Edward Kelly Claremont Chris Jenison Swanbourne E Sas New Guinea

Also Mentioned on This Page

ITH American Institute of Aeronautics and Astronautics J. Cadry Osteo Rropracer Oriental New South Ped Edgecliff Canberra Bokhara Erivan J. Catley YWCA Alinga Street City The Robin Stratshidee South Vietnam Sas Hill Super Soldiers Super Grunt Prunt Three Reg Beesley Army Vietcang AAFP J. J. Wescott Anson Street Orange, NS Bex E ‘Beckers Py. Ltd Crown and Campbell Straits Eodney Woolworths EL Rancho Sid Petrie Street
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