	british aerospace raises system designers stake british aerospace plc bael l said it has increased its stake in systems designers plc to pct or mln ordinary shares following the purchase of mln ordinary shares the british aerospace pension fund holds mln ordinary shares in systems representing a stake of pct a spokesman for british aerospace said it has no present or future intention of making a full bid for systems designers system designers shares were nine pence higher at prior to the share stake announcement and have showed little movement since reuter 
