Good evening, gentlemen.
Some interwar models:
An evolution of the previous Farman F.221, Farman F222 was longer, with different wings (with more dihedral), more powerful radial engines, retractable landing gear and a refined nose.
Boulton Paul P-71 was an all metal biplane, built as mail and passenger aircraft. Only two were built, and as both were destroyed in accidents within a year of its introduccion in Imperial Airways, today is largely unknown.
Armstrong Whitworth AW.23 loose the competition against Bristol Bombay for a bomber-transport, but was the basis for the future Whitley RAF medium bomber.
Two large biplanes of conventional steel, wood, aluminium alloy and fabric compete for a 1931 "general purpose" design (general purpose = dive bomber, torpedo carrier, observation, army cooperation, reconnaissance and casualty evacuation
): Armstrong Whitworth AW.19 and Fairey G-4-31, but with the emergence in 1935 of the Vickers Wellesley, which was so superior that the RAF, abandoned the previous general purpose requirements of the earlier specification and ordered 96 Wellesleys as medium bombers.
Cheers.