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PD0RDD > NASA 07.11.98 00:56l 75 Lines 3743 Bytes #-9817 (0) @ WW
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Sent: 981106/1928Z @:PI8WNO.#UTR.NLD.EU #:37673 [DeMeern] FBB5.15c $:37673_PI8W
From: PD0RDD@PI8WNO.#UTR.NLD.EU
To : NASA@WW
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Ariane 503/ARD : A successful complete European space mission
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Europe has moved a step closer to flying its own complete space missions
with the highly successful flight of an automatic capsule, the
Atmospheric Reentry Demonstrator (ARD).
ARD was released during the Ariane 503 flight on 21 October, shortly
after separation of the launcher's cryogenic main stage (at an altitude
of about 216 km) 12 minutes after lift-off from the Guiana Space Centre,
Europe's spaceport in Kourou, French Guiana.
Engineers analysing data from its sub-orbital flight reported this week
that all the capsule's systems had performed well and according to
expectations.
ARD reached an altitude of 830 km and splashed down to within 4.9 km of
its target point in the Pacific Ocean between the Marquises and Hawaii
after one hour and 41 minutes. It was recovered some five hours later
and will undergo more detailed technical analysis in Europe.
Engineers analysing real-time telemetry from the flight have reported
that all electrical equipment and propulsion systems functioned
nominally. Telemetry systems and reception stations all performed well,
and the onboard GPS receiver worked satisfactorily during the entire
flight except, as expected, during black-out in reentry.
During reentry the heatshield temperature reached 900?C and the cone and
heatshield thermal protection was in a perfect state after retrieval.
Throughout the flight ARD remained airtight and perfectly intact.
Built by Aerospatiale (France) for ESA, the ARD has a ? classical ?
Apollo capsule design and is packed with the most advanced technologies
to test and qualify new technologies and flight control capabilities for
atmospheric reentry and landing.
During the mission it recorded and transmitted to the ground more than
200 critical parameters for analysis of the flight and behaviour of
onboard equipment.
Although not strictly a prototype of a possible future European Crew
Transport Vehicle (CTV), which could fly to and from the International
Space Station, ARD is a major step towards providing greater confidence
in Europe's capabilities in reentry technologies for use not only in
the frame of crew and equipment transport but also for future re-usable
launchers.
For the first time ever Europe has flown a complete space mission - from
launching a vehicle into space to recovering it safely. This is a major
step forward in Europe's capability for developing and operating
spacecraft that can return to Earth carrying people or equipment.
For further information, please contact : ESA Public Relations Division
Tel : +33(0)1.53.69.7155 Fax : +33(0)1.53.69.7690
.
Greetings from Hans at Maarssenbroek ³~ The Netherlands
HomebBs : PI8WNO × .
E-Mail : pd0rdd@hj-lammers.demon.nl ××׶ Úп
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