Koolhoven FK.35 as biplane

Old post, I know, but just to point out that the biplane was not "anther project". The F.K.35 was designed from the outset to be a convertible airframe - able to assembled as either a monoplane or as an unstaggered, equal-span biplane.

A display model was also made of the monoplane configuration equipped with twin floats. Presumably, the biplane could also take a pontoon undercarriage.

http://members.ziggo.nl/henrikaper/koolhoven/koolhoven-vliegtuigen/images/koolhoven-fk35.jpg
 
Many thanks for the Info my dear Apophenia.
 
I wonder, what the advantage would be, to build this double configuration aircraft?
 
Gives a choice between more maneuverability and 'stol', or more speed and range.
 
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