skip to content

#2310

Schweizer S333

🇺🇸 United States ·first flew 1988· light utility and trainer helicopter

🚁 helicopter turboshaft ✓ still flying
Schweizer S333, photo 1 of 2
1/2 Jens· CC BY 2.0

what is it?

The Schweizer 330 and S333 are turbine-powered developments of the Schweizer 300 light piston-powered helicopter. As of 2007, only the Schweizer 333 remains in production. In February 2009, the 333 was rebranded as the Sikorsky S-333.

How to recognise it: 1 turboshaft engine · 8.4 m main rotor

base stats

  • speed 194 km/hcruise speed
  • range 591 kmwithout refuelling
  • seats 3passengers
  • size 1,157 kgmax take-off weight

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 38 years ago, in 1988.

turboshaft: A turbine that turns a shaft, usually a helicopter rotor.

spec sheet

first flight
1988-06-14
introduced
1992
status
in production
number built
—
role
light utility and trainer helicopter
origin
🇺🇸 United States
makers
Sikorsky Aircraft Corporation, Schweizer RSG, Schweizer Aircraft Corporation
engines
1× Rolls-Royce M250-C20W / Allison 250
crew
1
passengers
3
length
9.5 m
rotor diameter
8.4 m
height
3.4 m
max take-off weight
1,157 kg
top speed
—
cruise speed
194 km/h
range
591 km

Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.

family

Sources: Wikidata Q980256, Wikipedia: Schweizer S333 (CC BY-SA 4.0).Updated 2026-10-24.

stan runge ef9524a source