Fokker S.IV

what is it?

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.

🔎How to recognise it: 1 piston engine with propeller · 11.2 m wingspan

base stats

• speed 160 km/htop speed
• size 1,000 kgmax take-off weight
• built 31made in total

Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).

fun facts

• 🎂First flew 102 years ago, in 1924.
• 🚗Wingspan of 11.2 m: about 2 cars parked nose to tail.

piston: A car-like piston engine turning a propeller: simple and cheap, the classic small plane.

spec sheet

first flight

1924

number built

31

role

trainer

makers

Fokker

engines

1× Le Rhône 9J

crew

2

length

8.6 m

wingspan

11.2 m

height

3.2 m

max take-off weight

1,000 kg

top speed

160 km/h

range

—

ceiling

4,000 m

Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.