Limousine is a Marie Curie Initial Training network funded by the European Commission under Framework 7 for the period 2008-2012. It represents a multidisciplinary initiative to strengthen the fundamental scientific work in the field of thermo-acoustic instabilities in combustion systems, and is motivated by the need for lean combustion technologies and reduced emissions. The network comprises 12 partner institutions across Europe: 5 academic partners, 2 research institutions and 5 industrial partners. The research in Limousine focuses on the limit cycle behaviour of the unstable pressure oscillations in gas turbines, and on the resulting mechanical vibrations and materials fatigue.