Metal Aircraft Corporation

[2][3][4] He was joined by Ralph R. Graichen, the co-designer of the Ford Trimotor, who became vice-president and chief engineer of the company.

[6] Following the first flight of the airplane at Lunken Airport on 9 April 1928, the company was offered $10,000 if it would remain in Cincinnati.

[7] Within two weeks the company was purchased by a group of Cincinnatians and on 2 May 1928 it was reincorporated as the Metal Aircraft Corporation.

[a][9][10] Production of the Metal Aircraft Flamingo transport was continued at its factory at the Lunken Airport with several variations.

[b][14] Later, by July 1929, Mason-Dixon Air Lines installed a ticket counter and waiting room in the building.