Yakovlev Yak-12

$47,000 utility aircraft introduced in 1947

Yakovlev Yak 12 SP ABA
photo: Krzysztof Dobrzanski

The Yakovlev Yak-12 was designed and manufactured by the Yakovlev design bureau and was introduced in 1947. The aircraft was in service with the Soviet Air Force, Soviet civilian aviation, and several other countries. The Yakovlev Yak-12 is a light multirole STOL aircraft developed from Yak-10.

Manufacturer:
Yakovlev
Country:
Russia
Manufactured:
1946 to: 1960
ICAO:
YK12
Price:
US$0.047 million (2019)

Specifications

Avionics:
Engine:
1x Ivchenko AI-14R
piston
Power:
260 horsepower
Max Cruise Speed:
98 knots
181 Km/h
Approach Speed (Vref):
44 knots
Travel range:
440 Nautical Miles
815 Kilometers
Fuel Economy:
Service Ceiling:
13,650 feet
Rate of Climb:
810 feet / minute
4.11metre / second
Take Off Distance:
126 metre - 413.38 feet
Landing Distance:
90 metre - 295.27 feet
Max Take Off Weight:
1,588 Kg
3,501 lbs
Max Landing Weight:
1,588 Kg
3,501 lbs
Max Payload:
529 Kg
1,166 lbs
Fuel Tank Capacity:
Baggage Volume:
Seats - Economy / General:
4 seats
Seats - Business Class:
Seats - First Class:
Cabin Height:
Cabin Width:
Cabin Length:
Exterior Length:
9 metre - 29.53 feet
Tail height:
3.12 metre - 10.24 feet
Fuselage Diameter:
1.2 metre - 3.94 feet
Wing Span / Rotor Diameter:
12.6 metre - 41.34 feet
Wing Tips:
no winglets
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Description

The Yakovlev Yak-12 was developed by the Yakovlev design bureau due to the need of the Soviet Air Force for a new liaison and utility aircraft in 1944. It was meant to take over the Po-2 biplane that was already obsolete.

The Yak-12 was also intended to be in service with civil aviation to replace the AIR-6 light utility aircraft. The initial proposal of the design bureau was the Yak-10, a four-place high-wing aircraft developed in January 1945. In 1947, the Yak-10 was replaced by the Yak-12, equipped with an improved engine, modified wings and landing gear, and a revised fuselage. In the same year, the Yak-12 took to the air for the first time.

The Yak-12 has an external length of 9 meters, an external height of 2.4 meters, a tail height of 3.12 meters, and a fuselage width of 1.2 meters. The conventional fixed landing gear has a wheelbase of 6.6 meters. The high wings have a wingspan of 12.6 meters and a wing area of 23.8 square meters.

The Yak-12R is powered by a single Ivchenko AI-14R engine. It is a nine-cylinder, air-cooled, radial piston capable of producing 256 horsepower of thrust. The engine has a single-stage, single-speed, geared centrifugal superchargers, carburetor fuel system, and an air-cooling system.

It also has a 2-bladed fixed-pitch propeller. The aircraft has a maximum speed of 98 knots at sea level, a cruise speed of 69 knots, and a landing speed of 44 knots. It has a travel range of 413 nautical miles. It can fly up to 13,650 feet and can climb at a rate of 810 feet per minute.

The time to altitude in four minutes is 1,000 meters, the takeoff distance is 126 meters, and the landing distance is 90 meters. The aircraft has a maximum takeoff and landing weight of 1,588 kg. It has a maximum payload of 529 kg, an empty weight of 1,026 kg, and a gross weight of 1,450 kg.