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Mark, you lucky seadog you,
I just happen to have a copy of Profile Publications #109, "The Hanriot HD 1". Your photo (I think) is there, with the following caption:"U.S. Navy HD-2 convert A5624 at North Island, late summer 1919. Note retention of early HD-2 enlarged rudder and generator mounted on lower port wing root." The man in the photo has his right hand on his right hip and stands so that the numbers are seen, but not the letter.
Further on: "The United States Navy operated a few coastal air stations in France in the late stages of the war. This brought them into contact with French naval aviation units operating Hanriot HD-2's and led to an American purchase of ten aircraft. It is recorded in one document that these were acquired as seaplanes but were sent to the U.S. Naval Aircraft Factory at League Island, Philadelphia, for conversion to land-planes. (It ws for long believed that they had been built at the N.A.F.). These Hanriots were allotted the U.S Navy designating numbers A5620--A5629 and were fitted with Clerget engines. They were armed with twin Vickers guns.
The U.S. Navy's HD-2 converts were used for training in combat flying, and at least one, A5624, was flown froma gun-turret platform on U.S.S. Mississippi in 1919. This aircraft had a large wind-driven generator mounted on the port lower wing, suggesting that it may have had an early radio-telephone installation. Four other HD-2 converts were used by the second Ship Plane Unit that began its training activities at Langley Field on 28th May 1919. This unit was disbanded in the following August.
THe Hanriots survived at least these early U.S. Navy activities for, in the report of the Navy Department of aircraft on hand on 1st November 1919, all ten Hanriots were listed. It is of interest, in view of their origin, to note that they were even at that date recorded as "Hanriot seaplanes".
Some figures from the U.S. Navy Dept. report of 25.6.19: Engine-- 130 h.p. Clerget; Weight (lbs.) empty-- 1,021 Military load-- 185 Pilot-- 165 Fuel and oil Loaded-- 1,605; Max. speed (m.p.h.) Ground level-- 113; Climb to 9,840 ft.-- 8 min. 30 sec.; Endurance (hours)-- 2-4 ...
Hope this is useful. HUB!
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