AIR MAIL
The world's first airplane mail to be operated
as a continuously scheduled public service
started from this field May 15, 1918
The route connected Washington, Philadelphia
and New York. Curtiss JN 4-H airplanes with a
capacity of 150 pounds of mail flew the 230 miles
in about three hours.
The service was inaugurated by the Post Office
Department in cooperation with the Aviation Section
of the Signal Corps of the U.S. Army. On August 12, 1918
the service was taken over in its entirety by the
Post Office Department.
This marker was erected by
The Aero Club of Washington
On the Fortieth Anniversary
May 15, 1958
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