GPS: 38.881440, -77.043448
Inscription. 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. Erected 1958 by The Aero Club of Washington on the fortieth anniversary, May 15, 1958. Marker series.