what is it?
The Sikorsky S-434 is a light, turbine-powered helicopter. The S-434 is an improved development of the Schweizer S333.
How to recognise it: 1 turboshaft engine · 8.4 m main rotor
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 18 years ago, in 2008.
turboshaft: A turbine that turns a shaft, usually a helicopter rotor.
spec sheet
- first flight
- 2008-12-18
- status
- still flying
- number built
- —
- role
- light utility and trainer helicopter
- origin
- 🇺🇸 United States
- makers
- Sikorsky Aircraft Corporation
- engines
- 1× Rolls Royce 250-C20W / Allison 250-C20W
- length
- 9.4 m
- rotor diameter
- 8.4 m
- height
- 3.4 m
- max take-off weight
- 1,452 kg
- top speed
- —
- range
- —
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
family
Sources: Wikidata Q2285606, Wikipedia: Sikorsky S-434 (CC BY-SA 4.0).Updated 2026-10-24.