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what is it?
The SPAD S.XI or SPAD 11 is a French two-seat biplane reconnaissance aircraft of the First World War. The SPAD 11 was the work of Louis Béchereau, chief designer of the Société Pour L'Aviation et ses Dérivés (SPAD), who also designed the highly successful SPAD 7 and SPAD 13 single-seat fighter aircraft. It was developed under military specification C2, which called for a two-seat fighter aircraft.
How to recognise it: 1 piston engine with propeller · biplane · 11.2 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
- 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
- —
- number built
- 1,000
- role
- reconnaissance aircraft
- makers
- Société Pour L'Aviation et ses Dérivés
- engines
- 1× Hispano-Suiza 8Bc / Hispano-Suiza 8Be
- crew
- 2
- length
- 7.8 m
- wingspan
- 11.2 m
- height
- 2.8 m
- max take-off weight
- 1,035 kg
- top speed
- 180 km/h
- range
- —
- ceiling
- 7,000 m
- wings
- biplane
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q750929, Wikipedia: SPAD S.XI (CC BY-SA 4.0).Updated 2026-10-24.