Dassault Electronique SA, Matra Cap Systemes SA and CSEE Defense SA have formed a consortium to develop the command and control operating system for the Horizon frigate to be developed by Britain, France and Italy, the three announced yesterday: the group, to be called Horizon CMS France, says it will conclude a co-operation agreement with Ferranti International Plc, Manchester in a few days, and adds that a that similar agreement will also be struck with an Italian company.