The Sikorsky Twin Engined Amphibian, Type S-38, Model 1928
Flutter Tests on SB2U Model in 16-Foot Tunnel
Flutter Tests of Modified SB2U Model in 16-Foot Tunnel
Wind-tunnel Tests of Four Full-scale Seaplane Floats
General porpoising tests on flying-boat-hull models
General resistance tests on flying-boat hull models
A correlation of loadings and afterbody length-beam ratios of various flying-boat hulls