Letov LF-107 Luňák

what is it?

The LF-107 Luňák (English: Kite, the bird of prey) is a Czech aerobatic glider designed by Prague-based company Rudý Letov in the late 1940s. The design was developed within a prolific group of aeronautical engineers and sailplane pilots, including K. Dlouhý (later author of LET L-13 Blaník), J. Matejček, and B. Boček, led by chief designer Vladimír Štros.

base stats

• speed 300 km/htop speed
• size 310 kgmax take-off weight
• built 75made 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 78 years ago, in 1948.
• 🏎️Top speed is 2.3× a car on the Dutch motorway (130 km/h).
• 🚗Wingspan of 14.3 m: about 3 cars parked nose to tail.

no engine: No engine: it glides on rising air.

spec sheet

first flight

1948-06-25

number built

75

role

aerobatic glider

makers

Letov

engines

none (glider)

length

6.8 m

wingspan

14.3 m

max take-off weight

310 kg

top speed

300 km/h

range

—

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