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ARIANESPACE FLIGHT 50 MARKS A NEW DIMENSION IN SPACE

 ARIANESPACE FLIGHT 50 MARKS A NEW DIMENSION IN SPACE


First Launch of an Ariane 4 from the 50-Launcher Batch Order Awarded

to the European Space Industry in 1989 and the Inaugural Flight of a
 Higher-Performance Third Stage
 WASHINGTON, April 15 /PRNewswire/ -- Arianespace launched two satellites, Telecom 2 B for France Telecom and Inmarsat II F4 for the International Maritime Satellite organization, from the Space Center in Kourou, French Guiana, today at
 8:25 p.m. Kourou, French Guiana
 11:25 p.m. GMT
 7:25 p.m. (EDT) Washington, D.C.
 12:25 a.m. Paris, April 16
 The launch vehicle was an Ariane 44L, the most powerful configuration of the European launch vehicle with four liquid strap- on boosters. Total performance for the launch vehicle was 4,101 kg (9,022 pounds). Flight 50 also marked the first use of the H10 + third stage, which increases Ariane's 4's payload capacity into geostationary transfer orbit (GTO) to 4,460 kg (9,812 pounds).
 The two satellites were placed into a geostationary transfer orbit. Provisional parameters at third stage injection were:
 Perigee: 299.6 (+/- 1 km) for a target of 300 km
 Apogee: 35,987 (+/- 100 km) for a target of 35,987 km
 Inclination: 4.00 (+/- 0.05) degrees for a target of 4.00 degrees.
 Telecom 2B is the second second-generation satellite built by Matra Marconi Space and Alcatel Espace of France on behalf of France Telecom. It weighed 2,275 kg (5,005 pounds) at liftoff. Equipped with a 10 C-band, 11 Ku-band and 5 X-band transponders, Telecom 2 B will provide telecommunications, data distribution and television transmission services. It is positioned over the Gulf of Guinea and will service both continental France and the country's overseas departments and territories.
 Inmarsat 2 F4 is the second satellite launched by Arianespace for this international organization. Built by prime contractor British Aerospace, this second-generation spacecraft weighed 1,310 kg (2,882 pounds) at liftoff. It will provide mobile and maritime communications services from its position at 55 degrees West over the West Atlantic.
 "Beyond this evening's successful launch, Arianespace is very proud of having launched the first of the new batch of 50 Ariane 4 launch vehicles ordered in 1989 from a more and more productive and competitive European space industry. Another success is the improvement in the launcher's performance thanks to the enhanced H10 + third stage. We, at Arianespace, are pleased to share these benefits with our customers, France Telecom and Inmarst, two important operators and faithful customers," said Arianespace Chairman and CEO Charles Bigot.
 The next launch is scheduled for the end of June 1992. Flight 51, an Ariane 44L, will orbit Eutelsat 2 F4 for the European Telecommunications Satellite organization, and Insat 2A for ISRO, India's space research organization.
 Following Flight 50, Arianespace's backlog stands at 31 satellite launch contracts, worth 13.6 billion francs (about $2.4 billion).
 Arianespace, an industrial and commercial company, is a world leader in the provision of commercial space transportation services. Arianespace also markets and sells ARIANE launch services and provides launch operations from the Guiana Space Center in French Guiana. Arianespace Inc., a wholly owned subsidiary of Arianespace, is responsible for marketing launch services in the Unites States; a liaison office in Tokyo assures an Arianespace presence in Japan and in the Pacific region.
 -0- 4/15/92
 /CONTACT: Michelle Lyle of Arianespace Inc., 202-628-3936; Claude Sanchez of Arianespace S.A., 33/1-6087-60-13/14; or Dieter Brand of Arianespace Tokyo, 813-3592-2766/ CO: Arianespace Inc. ST: District of Columbia IN: ARO SU:


MH-DC -- DC026 -- 9031 04/15/92 20:47 EDT
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Publication:PR Newswire
Date:Apr 15, 1992
Words:600
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