01/31/2008. In 1924 the Admiralty issued the specifications 5/24 for a
fleet trainer aircraft with an interchangeable wheel/float
undercarriage. Harold Bolas designed a side-by-side two-seater powered
by a 220 hp Rolls-Royce Falcon twelve-cylinder liquid-cooled V-engine.
The sole prototype flew for the first time on December 10, 1926. It
was not taken into production.