Heinkel HD 37

what is it?

The Heinkel HD 37 was a fighter aircraft, designed in Germany in the late 1920s, but produced in the USSR for Soviet Air Force service. It was a compact, single-bay biplane with staggered wings of unequal span, braced by N-type interplane struts. The pilot sat in an open cockpit, and the main units of the tailskid undercarriage were linked by a cross-axle.

🔎How to recognise it: 1 piston engine with propeller · 10 m wingspan

base stats

• speed 290 km/htop speed
• range 700 kmwithout refuelling
• size 1,729 kgmax take-off weight
• built 131made 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 95 years ago, in 1931.
• 🏎️Top speed is 2.2× a car on the Dutch motorway (130 km/h).
• 🚗Wingspan of 10 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

1931-07-25

introduced

1930

number built

131

role

fighter

origin

German Reich

makers

Dux Factory, Heinkel

engines

1× Mikulin M-17F / BMW VI

crew

1

length

7 m

wingspan

10 m

height

3.2 m

max take-off weight

1,729 kg

top speed

290 km/h

range

700 km

ceiling

7,200 m

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