Sopwith_Hippo_Sopwith 3F 2 Hippo là một mẫu thử máy_bay_tiêm_kích của Anh trong Chiến_tranh thế_giới I Ghi_chú Some sources suggest that rather than a rebuilt first prototype that the Hippo with reduced stagger was a new aircraft Tham_khảo BULLET Bruce_J_M_British Aeroplanes 1914 18 London_Putnam 1957 BULLET Bruce_J_M_War Planes of the First_World_War_Volume Three_Fighters_London_Macdonald 1969 ISBN 0 356 01490 8 BULLET Green_William and Swanborough_Gordon_The_Complete Book of Fighters_New_York_Smithmark 1994 ISBN 0 8317 3939 8 BULLET Mason_Francis_K_The British_Fighter since 1912 Annapolis_USA_Naval_Institute Press 1992 ISBN 1 55750 082 7 BULLET Robertson_Bruce_Sopwith_The Man and his Aircraft_Letchworth_UK_Air Review 1970 ISBN 0 900435 15 1
Sopwith_Hippo