sentences:  In 1977, CASA was awarded the contract to design and build the C-101, a trainer and attack aircraft for the Spanish Air Force.CASA joined the Eurofighter 2000 project in 1996.CASA has been a part of EADS, the European aerospace corporation, with Aérospatiale-Matra of France, Dornier GmbH and DASA of Germany since 1999.