skip to content

#1530

Cessna O-1 Bird Dog

🇺🇸 United States ·first flew 1949· observation aircraft

🎖️ military piston ✓ still flying
Cessna O-1 Bird Dog, photo 1 of 7
1/7 U.S. Army· Public domain

what is it?

The Cessna O-1 Bird Dog is a liaison and observation aircraft that first flew on December 14, 1949, and entered service in 1950 as the L-19 in the Korean War. It went on to serve in many branches of the U.S. Armed Forces, was not retired until the 1970s in a number of variants, and also served in the Vietnam War. It was also called the OE-1 and OE-2 in Navy service, flying with the Marine Corps, and in the 1960s, it was redesignated the O-1.

How to recognise it: 1 piston engine with propeller · 11 m wingspan

base stats

  • speed 185 km/htop speed
  • size 1,102 kgmax take-off weight
  • built 3,431made 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 77 years ago, in 1949.
  • Wingspan of 11 m: about 2 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
1949-12-14
introduced
1950
retired
1974
status
still flying
number built
3,431
role
observation aircraft
origin
🇺🇸 United States
makers
Cessna
engines
1× Continental O-470-11
length
7.9 m
wingspan
11 m
height
2.2 m
max take-off weight
1,102 kg
top speed
185 km/h
cruise speed
167 km/h
range
—
ceiling
5,639 m
wings
monoplane

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

family

Sources: Wikidata Q541116, Wikipedia: Cessna O-1 Bird Dog (CC BY-SA 4.0).Updated 2026-10-24.

stan runge 704880d source