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Weiss WM-21 Sólyom

🇭🇺 Hungary ·first flew 1937· light bomber/reconnaissance biplane

Weiss WM-21 Sólyom, photo 1 of 6
1/6 FOTO:Fortepan — ID 30157 : Adományozó/Donor: Morvay Kinga. archive copy at the Wayback Machine· CC BY-SA 3.0

what is it?

The Weiss WM-21 Sólyom (English: Falcon) was a 1930s Hungarian light bomber and reconnaissance biplane which served in World War II and was developed by the Manfred Weiss company.

base stats

  • speed 320 km/htop speed
  • range 750 kmwithout refuelling
  • size 3,400 kgmax take-off weight
  • built 128made 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 89 years ago, in 1937.
  • Top speed is 2.5× a car on the Dutch motorway (130 km/h).

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

spec sheet

first flight
1937
introduced
1939
retired
1945
status
retired
number built
128
role
light bomber/reconnaissance biplane
origin
🇭🇺 Hungary
makers
MÁVAG, Manfred Weiss Works
engines
1× Weiss WM-K-14A
crew
2
length
9.6 m
height
3.5 m
max take-off weight
3,400 kg
top speed
320 km/h
range
750 km

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

Sources: Wikidata Q748977, Wikipedia: Weiss WM-21 Sólyom (CC BY-SA 4.0).Updated 2026-10-24.

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