what is it?
The Letov Š-4 was a Czechoslovak single-bay, unstaggered biplane fighter and trainer in the 1920s.
How to recognise it: piston engines · 8 m wingspan
base stats
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 104 years ago, in 1922.
- Top speed is 1.8× 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
- 1922
- introduced
- 1923
- retired
- 1928
- status
- retired
- number built
- 20
- role
- fighter
- makers
- Letov
- engines
- Hispano-Suiza 8Ba
- crew
- 1
- length
- 6.6 m
- wingspan
- 8 m
- height
- 2.6 m
- max take-off weight
- 980 kg
- top speed
- 232 km/h
- range
- —
- ceiling
- 6,200 m
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q1411752, Wikipedia: Letov Š-4 (CC BY-SA 4.0).Updated 2026-10-24.