Max Lillie (1881-1913, born in Sweden as Maximillian Theo Liljestrand) announced the formation in Chicago of the Weckler-Armstrong Lillie Corporation [WALCO] in February 1913, with the aim to manufacture airplanes and airboats. Adam F. Weckler was a racing boat builder and E. R. Armstrong was an airplane builder and expert on aerodynamics. Max Lillie was the driving force in the new firm.
The exact identity of the plane is either a modification of the earlier unsuccessful “Airboat” tandem monoplane design or a second follow-up design.
Two WALCO planes were entered for the 1913 Chicago-Detroit Aero and Hydro Great Lakes cruise, but none actually started.
All Aero 