The NVI F.K.29 was a small Dutch biplane transport, carrying two passengers who boarded after the nose, with its single engine and fuselage, had been swung open.
The F.K.29 was designed by Koolhoven for the NVI (National Aircraft Industry) as a kind of air taxi, transporting two passengers between small local fields and the departure airport of scheduled flights.
It was an equal span two bay biplane, with simple pairs of parallel interplane struts between unstaggered wings.
The most unusual feature of the F.K.29 was the means of access to this space: the whole forward fuselage was hinged so it, complete with engine, could be swung to starboard, allowing the passengers to climb in directly.
The hinged nose curved in towards the three cylinder, 100 hp (75 kW) Bristol Lucifer radial engine, which drove a two blade propeller.