In 1937 The Glen Martin company started with the design of the model I62. This was a design for a twin engine high-wing monoplane flying boat with an inverted gull wing. As power plant one of the most powerful air-cooled radial engines then available was selected: the Wright R-200-6 Cyclone of 1600 hp maximum take-off power.

Nico Braas (1946-2022) was an author of books on aviation, known for, among others, Convair B-58 Hustler (2013), Boeing B-47 stratojet (2015) and Brewster Buffalo (2013).