[1] The last aircraft built (serial number L9786) was acquired by the Air Ministry for testing flying boat hull designs particularly for the Short Sunderland.

During 1942, a series of trials by the Marine Aircraft Experimental Establishment (MAEE) was undertaken, determining attitude and stability characteristics of the design.

The sole test example was lost at sea on 15 March 1944 off Helensburgh, Argyll, when an attempt was made to take off from the Clyde in frosty conditions.

[2] The Scion Senior landplane was eventually sold to Palestine Air Transport in December 1938, to be based in Haifa.

It was impressed into Royal Air Force service in the Middle East in February 1942 and lost in action on 22 September 1943.