what is it?
The Curtiss HA (sometimes Dunkirk Fighter) was an American biplane seaplane designed by Captain B.L. Smith of the United States Marine Corps, and built by Curtiss Aeroplane and Motor Company. Despite the nickname, it's unrelated to the 1940 Battle of Dunkirk.
How to recognise it: 1 engine · 12.8 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 108 years ago, in 1918.
- Wingspan of 12.8 m: about 3 cars parked nose to tail.
spec sheet
- first flight
- 1918
- number built
- 6
- role
- fighter/mail plane
- origin
- 🇺🇸 United States
- engines
- 1× Liberty 12
- crew
- 2
- length
- 9.4 m
- wingspan
- 12.8 m
- height
- 3.5 m
- max take-off weight
- 1,772 kg
- top speed
- 190 km/h
- range
- —
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q4163100, Wikipedia: Curtiss HA (CC BY-SA 4.0).Updated 2026-10-24.