Only one built
480 hp Rolls-Royce F.XIB
Later also fitted with 525 hp Rolls-Royce Kestrel IB and 477 hp Rolls-Royce Kestrel IIS and
After rejection for operational service, It was fitted with dual controls and used by the Royal Aircraft Establishment as an engine and propeller test bed, remaining in use until September 1933.
Aeroplane Photo Supply No. 1963
