Âé¶¹´«Ã½

Plane speedy

By Peter Hadfield

15 April 2000

A REVOLUTIONARY jet engine was unveiled at a Tokyo aerospace show last week.
Designed to power a new generation of commercial aircraft that will fly at five
times the speed of sound, the Hypersonic Transport Propulsion System (HYPR) is
the brainchild of Japan’s New Energy and Industrial Technology Development
Organization (NEDO), a branch of the Ministry of International Trade and
Industry.

The heavy industry divisions of Kawasaki, Mitsubishi and Ishikawajima-Harima
have teamed up to develop the engine, which is made up of two types of jet
engine mounted end to end: a turbojet in front and a ramjet at the…

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