January 22, 2013David Earle Dunlap, he became Chief Engineer for G. Elias & Bros. from 1920-1925. Here he won 1st place in design competitions for this company with his advanced designs for the Army, Marines and Mail services. At the same time, he won 2nd place from the Navy. His bonus for this was $25,000.00. He was sole designer and took charge of the Elias EM-2 Expeditionary planes. He was responsible for the fuselage design on the NBS-3 bomber, which was the second largest bomber built to that date. He did all the original design on the Elias M-1 Mail plane. Was in charge of this plane from the drawing board, through production and field acceptance by the Trials Committee. This airplane would incorporate many design innovations. He also helped design the first true Amphibian Airplane and the first Army Trainer to have a radial engine. via Niagara Aerospace Museum