Would it be possible to have a version without big chin? ...
Floaty (and Boaty) -- The Miles M.20/6 Mariner CAMS FighterMiles had developed its M.20/4 'panic fighter' as an interceptor to operate from Catapult Aircraft Merchant (CAM) ships. M.20/4 development was curtailed when all effort was switched to the top-priority M.20/5
Malta float fighters. By the time Miles designer Walter G. Capley turned his attention back to the M.20/4, CAMS planning had evolved.
While the M.20/4 was to use many off-the-shelf components, this no longer statisfied the Air Ministry. One concern was the potential ditching characteristics of the M.20/4 with its large chin radiator (inherited from its
Beaufighter 'power-egg' installation). But there was also a desire to incorporated as many spares (and obsolescing components) as possible from stocks building at the repair centres.
Capley found that a minor re-design of the M.20/4 could meet AM requirements. The resulting M.20/6 substituted a number of surplus early-model
Hurricane and
Spitfire components. Externally, the M.20/6 differed from the earlier M.20s most dramatically in its coolant radiator position. The large nose bath was replaced by underwing
Spitfire units making for the smoother nose profile desired for ditching.
Less obvious were the various internal changes (mainly to take Hurricane fittings) and the twin, CO2-operated Kiddle-Lux floatation bags mounted in the wings. Like the M.20/5
Malta float fighters, it was also found to be advantageous to reduce armament to six wing-mounted .303-inch Browning Mk.II guns (the reduced airframe weight being judged valuable enough to warrant the lower firepower).
The resulting aircraft -- officially named the Miles
Mariner -- entered production in late 1941. The M.20/6 was a successful effort but, by the time the
Mariner entered service, many combat-worn
Hurricanes were readily available for use from CAM Ships. Only 20 M.20/6
Mariners were to be built -- all of which had been expended in operations over the North Atlantic by the Spring of 1943.