what is it?
The Westland IV and Westland Wessex were British high wing, three-engined light transport aircraft built by Westland Aircraft.
How to recognise it: 3 piston engines with propellers · 17.5 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 97 years ago, in 1929.
- Wingspan of 17.5 m: about 4 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
- 1929-02-22
- number built
- 10
- role
- light transport aircraft
- origin
- 🇬🇧 United Kingdom
- makers
- Westland Aircraft
- engines
- 3× Armstrong Siddeley Genet Major 1A
- crew
- 2
- passengers
- 4
- length
- 11.6 m
- wingspan
- 17.5 m
- height
- 2.9 m
- max take-off weight
- 2,858 kg
- top speed
- 196 km/h
- cruise speed
- 161 km/h
- range
- —
- ceiling
- 4,542 m
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q2565433, Wikipedia: Westland IV (CC BY-SA 4.0).Updated 2026-10-24.