Water performance of a four-engined flying boat with step fairings of length 3, 6 and 9 times the step depth /
Evans, G. J.,author.
Smith, A. G.,author.
Shaw, R. A.,author.
Morris, W.,author.
Great Britain.Aeronautical Research Committee,issuing body.
Great Britain.His Majesty's Stationery Office.
"April, 1941".