The Fokker S.IV was a military

trainer aircraft A trainer is a class of aircraft designed specifically to facilitate flight training of pilots and aircrews. The use of a dedicated trainer aircraft with additional safety features—such as tandem flight controls, forgiving flight characteristi ...

produced in the

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

in the mid-1920s. It was a conventional,

single-bay A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a ...

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 German invasion may refer to: Pre-1900s * German invasion of Hungary (1063) World War I * German invasion of Belgium (1914) * German invasion of Luxembourg (1914) World War II * Invasion of Poland * German invasion of Belgium (1940) * G ...

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. The S.IV could be powered by a variety of engines in the range, including

Siemens-Halske Sh 11 The Siemens-Halske Sh 11 was a seven-cylinder, air-cooled, radial engine for aircraft built in Germany in the 1920s. First run in 1925, it was rated at 75 kW (100 hp). Applications * Albatros L 68 * Bach 3-CT-2 Air Yacht * Bach 3-CT ...

Le Rhône 9J The Le Rhône 9J is a nine-cylinder rotary aircraft engine produced in France by Gnome et Rhône. Also known as the Le Rhône 110 hp in a reference to its nominal power rating, the engine was fitted to a number of military aircraf ...

Bristol Lucifer The Bristol Lucifer was a British three-cylinder, air-cooled, radial engine for aircraft. Built in the UK in the 1920s by the Bristol Aeroplane Company, it produced 100 horsepower (75 kW). The Lucifer was originally a Cosmos Engineering ...

, Armstrong-Siddeley Mongoose, Oberursel UR.II or the Clerget 9B.

Units using this aircraft/Operators (choose)

; * Royal Netherlands Air Force

Specifications

References

External links

Уголок неба
{{Fokker aircraft 1920s Dutch military trainer aircraft S.IV Biplanes Single-engined tractor aircraft Aircraft first flown in 1924 Rotary-engined aircraft