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produces of military aircraft during World War I and built many outstanding types of both land and water machines. The factory at Keyport grew into quite a complex, employing over 1,400 people.

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After the World War I Armistice, the company completed the last of their military contracts and converted 125 DH4 government-owned planes to DH-4B models. [[strikethrough]] Also were started [[/strikethrough]] The design and development of two flying boats for commercial use was begun, one a 3-passenger biplane-type for sport, the other a larger twin-engined cabin-type for passenger carrying. Two new engines were brought out, first the Type L-130, 150 [[strikethrough]] H.P.[[/strikethrough]], 6-cylinder water-cooled unit of aluminum block construction, weighing 375 pounds, then, later an 8-cylinder 60° Vee water cooled model, U-8_D, rated at 210 [[strikethrough]] H.P.[[/strikethrough]], weighting 544 pounds. Both models were the same bore and stroke and used many of the same parts, and both were of an aluminum block construction. Joseph was in charge of the motor department at that time. While at Aeromarine, Joseph took ten hours of flying boat instruction from company pilot Ed. C. Musick on Raritan Bay.

On March 13th, 1920, Musick and Joseph took off from the ice and snow on the bay and flew over the steamship "Princess Ann" which was aground off Rockaway Point, and returned to alight [[strikethrough]] land [[/strikethrough]] on the ice. Joseph also engaged in motor boat racing to some extent during the early 1920's. 

Aeromarine later made some large all-metal hull flying boats using Liberty engines, with which company pilot C. J. Zimmerman made many notable long distance record flights. The company appears to have passed out of the aviation picture during 1925. At the very last of his work at Aeromarine Joseph designed and built a small 45 [[strikethrough]] H.P.[[/strikethrough]], 3-cylinder radial-type air-cooled engine, known as the AR-3, for sport planes. At that time he was also operating his own personal machine shop in Matawan, New Jersey.

In 1930 James Helme took over the manufacturing rights of the AR-3 engine, as well as Joseph's shop, and formed [[strikethrough]] the [[/strikethrough]] Lenepe Aircraft and Motors, Incorporated, at Matawan. Joseph joined Helme in the new firm where they operated a [[strikethrough]] this[[/strikethrough]] small engine business for commercial aircraft until 1930. During this time 5, 7 and 9 cylinder models of these engines were also developed and produced. 

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