The L-W-F Engineering Company, Inc., was organized in December, 1915, and the plant was located at College Point, Long Island, N. Y. The factory has a floor space of 250,000 square feet. The company built training-machines and flying-boats for the government. The L-W-F fuselage is of the monocoque type, which means “one shell” as regards the body. It is of streamline laminated wood. The Standard Aero Corporation began life in May, 1912. Later it occupied several buildings at Plainfield, N. J. The company was reorganized under the name of the Standard Aircraft Corporation in 1917, and acquired the thirty-four buildings of a manufacturing company in Elizabeth, N. J. The total floor space was 614,190 square feet. The company built several thousand Standard J training-machines, which were bought by the government, but later discarded. The company also constructed the first Handley Page machines in this country, and also the first American constructed Caproni triplanes. Mr. Harry B. Mingle was the president and Mr. Charles H. Day the engineer. The Standard model J. H. was a hydroaeroplane, and a number of H. S.-1-1 and H. S.-2-1, and D. H. 4’s. Flying-boats were made by this company. Model J. R.-1-B. was used by the Post-Office Department for aero mail service between New York-Philadelphia-Washington, making a most excellent record. The St. Louis Aircraft Corporation was organized in the fall of 1917. The Huttig Sash and Door Company of St. Louis and the St. Louis Car Company facilities were used for making J. N. 4-D training-planes, which were being turned out in quantity in May, 1918. Nine hundred people were employed, and machines at the rate of 30 per week were being produced. The Springfield Aircraft Corporation came into being on September 27, 1917, and began to manufacture J. N. 4-D and VE-7 type machines. The company leased the Mason Company’s plants, with 200,000 square feet capacity, at Springfield, Mass. The plant reached a capacity of from 5 to 8 machines per day when the war ended. Over 1,000 were employed.