not act against the remaining working sections. While the prototype aircraft had been fitted with advanced (but conventional) hydraulic controls, Saunders-Roe had intended production aircraft to use an analogue system featuring electrical servos with hydraulic final control actuators. Such a system had been built and undergone ground-testing, but the Princess had been terminated prior to any aircraft having been fitted with the system. Specifications See also References Citations Bibliography Kaplan, Philip. "Big Wings: The Largest Aeroplanes Ever Built." Pen and Sword, 2005. . "Ten Turboprops Power Giant Flying Boat." Popular Science, August 1949. "A winged ship takes form." Flight, 7 December 1951, p. 724. External links Sea Wings Gallery of Images Video on Youtube "Britain's Biggest Flying Boat," Popular Mechanics, September 1948 Princess 1950s British airliners Flying boats Ten-engined six-prop tractor aircraft Six-engined turboprop aircraft Aircraft with contra-rotating propellers High-wing aircraft Cancelled aircraft projects Aircraft first flown in 1952