Again from my WW1 expert advisor -

Actually, its one of ten Hanriot HD 2s bought by the US Navy in 1918
(serials A5620-A5629). The HD 2 was a seaplane version of the HD 1, and
fitted with two Vickers guns, rather than the one of the HD 1. [The HD 1
was French designed, but not used by the Aviation Militaire; it was used by
the Belgians and extensively by the Italians.] The seaplanes were converted
to landplanes at the Naval Aircraft Factory in Philadelphia.



Cheers,



Avsec



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