sentences:  DASA was also responsible for the mid life upgrade (MLU) of the German fleet of Panavia Tornados, similar to the RAF's GR4 upgrade.During the 1990s, the Eurofighter proceeded towards the mass production phase, DASA holding a workshare stake in the programme.The workshare split had originally been agreed at 33/33/21/13 (United Kingdom/Germany/Italy/Spain) based on the number of units being ordered by each contributing nations.