The S.E.5b sesquiplane, A8947, on April 30, 1918, showing the streamlined nose and spinner, underslung radiator, head fairing and narrow-chord elevators.

One of the S.E.5a’s issued to the USAS in 1918 was F8005, seen as aircraft 13 of “B” Flight, 25th Aero Squadron, AEF.

A2-33 was one of 35 S.E.5a's given to Australia under the Imperial Gift scheme and numbered from A2-1.

American S.E.5a A.S.22-316 equipped for skywriting, with three-strut undercarriage and extended exhaust pipes clearing the base of the modified rudder.

G-CYCE (ex F9117) in Canadian service as a dual-control two-seater at Camp Borden. It survived until April 3, 1926.

Two more S.E.5a’s at Camp Borden in 1920. G-CYBJ (D8472) and G-CYBP (F9016).

Aeen at Dayton, Ohio, in 1924, this aircraft was one of the 11-strong fleet of the Skywriting Corporation of America, whose S.E.5’s had underslung radiators, pointed spinners and faired cowlings. In this picture it has standard exhaust pipes unsuitable for skywriting.

S.E.5a A.S.8044 (probably F8044) in post-war American service at Langley Field.

Another view of the S.E.5b in its original sesquiplane form on April 30, 1918. The raked interplane struts are particularly well illustrated.

American S.E.5a A.S.8148 (probably F8148) in service at Selfridge Field after the war, seen minus top cowlings.