Fokker S.IV
Encyclopedia
The Fokker S.IV was a military trainer aircraft produced in the Netherlands
in the mid 1920s. It was a conventional, single-bay biplane
with staggered wings of unequal span braced with N-struts, essentially a radial-engined
development of the S.III
. The pilot and instructor sat in tandem, open cockpits and the undercarriage was of fixed, tailskid type with a cross-axle between the main units. The Royal Netherlands Army Aviation Group purchased 30 examples and used them right up to the German invasion
of the Netherlands in 1940. On 14 May that year, a few surviving S.IVs escaped to France alongside some S.IX
trainers, but never flew again.
Netherlands
The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...
in the mid 1920s. It was a conventional, single-bay biplane
Biplane
A biplane is a fixed-wing aircraft with two superimposed main wings. The Wright brothers' Wright Flyer used a biplane design, as did most aircraft in the early years of aviation. While a biplane wing structure has a structural advantage, it produces more drag than a similar monoplane wing...
with staggered wings of unequal span braced with N-struts, essentially a radial-engined
Radial engine
The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders point outward from a central crankshaft like the spokes on a wheel...
development of the S.III
Fokker S.III
|-References:*...
. The pilot and instructor sat in tandem, open cockpits and the undercarriage was of fixed, tailskid type with a cross-axle between the main units. The Royal Netherlands Army Aviation Group purchased 30 examples and used them right up to the German invasion
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...
of the Netherlands in 1940. On 14 May that year, a few surviving S.IVs escaped to France alongside some S.IX
Fokker S.IX
The Fokker S.IX was a military trainer aircraft produced in the Netherlands in the mid 1930s, designed at a Royal Netherlands Navy request for a machine to replace the obsolete Fokker S.IIIs then in service. It was a conventional, single-bay biplane with staggered wings of unequal span braced with...
trainers, but never flew again.