very grateful for your replies ! as an amoeba in aviation's food chain its great to hear from you all. I guess I have this thing with water as also interesting is water injection into piston engines (apparently as far back as WW2 ) and I'm amazed at the water ingestion abilities of jet engines . By the way ,I'm working for a certain manufacturer in the field of composites ; there is a big debate going on about production methods and processes anyone out there involved ? Again, just a low form of life but one with an evolving brain