From: "Jacques van Oene" <j.vanoene@chello.nl>
Newsgroups: sci.space.news
Subject: NASDA flight demonstrator undergoes drop tests from CNES balloons
Date: Sat, 7 Jun 2003 11:57:00 +0200
Organization: Jet Propulsion Laboratory - Pasadena CA
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Paris, 6 of June 2003

NAL/NASDA flight demonstrator undergoes drop tests
from CNES balloons

Starting from 6 June, CNES will be conducting several stratospheric balloon
flights from the Kiruna launch base in Sweden for the purposes of a
particularly innovative mission: to perform drop tests from an altitude of
30 kilometres on a flight prototype developed by NAL, the japanese aerospace
laboratory, and NASDA, the Japanese space agency.

The flight prototype is a 500-kilogram, quarter-scale model of Japan's
HOPE-X spaceplane. Each flight will take the prototype to an altitude of 30
kilometres on a CNES stratospheric balloon. The prototype will then be
released in free fall and analysis will focus on the transonic flight phase
between 20 and 10 kilometres, at which it will reach a speed of Mach 1. The
flight will end with a soft parachute landing, cushioned by airbags. Japan
and France will share the data gathered from the flight tests, and CNES
intends to work with the French aerospace agency ONERA and industrial firms
such as EADS and Dassault on the project.

Three or four flights are planned, depending on weather conditions. This
flight test campaign in Kiruna is scheduled to last from early June to
mid-July, when atmospheric conditions are right to loft balloons to
altitudes of around 30 kilometres and perform drop tests safely.

This High Speed Flight Demonstrator 2 project (HSFD 2) was defined at the
CNES/NASDA symposium in Tokyo, Japan, in February 1999, then in Paris,
France, in June of the same year, within the framework of French-Japanese
cooperation on future launch vehicles. The project will further strengthen
partnership ties with Japan and allow both nations to acquire experience on
a spacecraft built by Japan and launched by CNES, until Japan's HOPE-X
spaceplane project gets fully underway.

NAL and NASDA have already completed subsonic flight tests with ALFLEX and
hypersonic flight phases with HYFLEX, and have tested extreme aerodynamic
heating with OREX and landing with HSFD 1 last automn. HSFD 2 aims to
acquire data during the transonic flight phase that will help to refine
system design tools and methodologies for controlling flight of re-entry
vehicles with limited handling qualities during transonic flight regimes.

CNES's participation in HSFD 2 will enable significant progress towards this
requirement, irrespective of the aerodynamic shape NAL/NASDA finally selects
for the spaceplane. Cooperation will be achieved through in-kind exchanges,
with NAL and NASDA developing the flight vehicle, and CNES's balloon team
managing the launch. In return, CNES will receive data from all flight
tests.

For more information, contact:

CNES Media Relations - Julien Guillaume - Phone +33 ( )01 44 76 76 83 -
julien.guillaume@cnes.fr



----

Jacques :-)

Editor: www.spacepatches.info

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