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left Aeromarine and was working for the Curtiss Company.

In June, 1915 a new 100 H.P. 6 cylinder geared Aeromarine engine was announced, weighing 435 pounds, resembling the former Kirkham engines in many respects, while Aeromarine advertised New York offices in the Times Building.  In November Mr. Uppercu engaged pioneer Long Island aviator and plane manufacturer Albert Heinrich to design and supervise the construction of a new twin-engine military type bombing plane at the Nutley, New Jersey shop, using two of the new Aeromarine 6 cylinder engines.  For this project the Atlantic Aircraft Company was formed, jointly owned by Uppercu and Heinrich.

In January, 1916 the Aeromarine 100 H.P. engine had passed Government tests in Great Britain and tests were in progress in France.  In mid-February the Atlantic Aircraft Company exhibited the new twin-engine bomber at the Newark Automobile Show, following which it was taken to Hempstead, Long Island for flight tests, which proved highly satisfactory.  Heinrich wanted to get the Government interested in this plane but Uppercu objected to this which resulted in Heinrich resigning from the project, to take the plane developments over himself.

In March Aeromarine purchased 50 acres of land at Keyport, New Jersey as part of a move to provide additional facilities.  In October the famous pioneer-engineer Charles Willard joined Aeromarine at Keyport on engineering and development work.  For a time that year Joseph was at the Plattsburg, New York military training camp.  Meanwhile, James had developed a growing Cadillac automobile agency in Rahway.

In February, 1917 Aeromarine exhibited a new twin-float tractor biplane trainer with 70 H.P. 6 cylinder engine at the Pan American Aeronautic Exposition in Grand Central Palace, New York City.  Two engines were also shown, a 6 cylinder and their new 12 cylinder Vee.  That month the company also announced an all new 8 cylinder Vee-type, 100 H.P. engine, weighing 450 pounds.

Joseph remained in the Aeromarine organization through World War I, where he assisted in engine and plane developments, mainly on seaplanes for the United States Navy.  As is well known, the Aeromarine Company became of the leading producers of military aircraft during World War I and built many outstanding types of both
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