Hughes TH-55 Osage

what is it?

The Hughes TH-55 Osage is a piston-powered light training helicopter produced for the United States Army. It was also produced as the Model 269 family of light utility helicopters, some of which were marketed as the Model 300. The Model 300C was produced and further developed by Schweizer after 1983.

🔎How to recognise it: 1 piston engine · 7.7 m main rotor

base stats

• speed 140 km/htop speed
• size 758 kgmax take-off weight
• built 2,800made in total

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 70 years ago, in 1956.

piston: A car-like piston engine turning a propeller: simple and cheap, the classic small plane.

spec sheet

first flight

1956-10-02

number built

2,800

role

light utility and trainer helicopter

origin

🇺🇸 United States

makers

Hughes Helicopters

engines

1× Lycoming HIO-360-A1A

crew

2

length

8.8 m

rotor diameter

7.7 m

height

2.5 m

max take-off weight

758 kg

top speed

140 km/h

cruise speed

129 km/h

range

—

ceiling

3,962 m

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