(19)

(11)

EP 2 032 821 A1

(12)

(43) Date of publication: 11.03.2009 Bulletin 2009/11 (21) Application number: 07733322.7 (22) Date of filing: 22.06.2007

(51) International Patent Classification (IPC):  F02B 47/10(2006.01) B63G 8/12(2006.01) (86) International application number: PCT/GB2007/002327 (87) International publication number: WO 2008/001050 (03.01.2008 Gazette 2008/01)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 26.06.2006 GB 0612539 26.06.2006 EP 06270062 (71) Applicant: BAE Systems plc London SW1Y 5AD (GB)	(72) Inventor: PEARSON, John, Barrington Cumbria LA14 1LQ (GB) (74) Representative: BAE SYSTEMS plc Group IP Department  Lancaster House P.O. Box 87 Farnborough Aerospace Centre Farnborough, Hampshire GU14 6YU Farnborough, Hampshire GU14 6YU (GB)