The Latham 43 was a flying boat bomber built in France in the 1920s for service with the French Navy. It was a conventional design for its day - a two-bay biplane with unstaggered wings, and engines mounted tractor-fashion on struts in the interplane gap. The pilot sat in an open cockpit, with a gunner in an open bow position, and another in an open position amidships.
Two examples, designated Latham 42 powered by liquid-cooled Vee engines were evaluated by the navy in 1924, leading to a contract for 18 aircraft powered by air-cooled radial engines instead. Designated Latham 43 by the manufacturer and HB.3 in naval service (for Hydravion de bombardement - "Seaplane-bomber", 3 seats), they remained in service between 1926 and 1929.
Eight other machines with the original liquid-cooled engine were sold to Poland.
Nelcarz, Bartolomiej & Peczkowski, Robert (2001). White Eagles: The Aircraft, Men and Operations of the Polish Air Force 1918–1939. Ottringham, UK: Hikoki Publications. ISBN1-902109-73-2.
Passingham, Malcolm (November–December 1999). "Latham's 'Boats: Pictorial History of the Designs of Jean Latham". Air Enthusiast (84): 22–27. ISSN0143-5450.
Further reading
Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p.568.
World Aircraft Information Files. London: Bright Star Publishing. pp.File 900 Sheet 2.