Yakovlev Yak-12

 

1st Flight 1946

The Yakovlev Yak-12 is a light multirole STOL aircraft used by the Soviet Air Force, Soviet civilian aviation and other countries from 1947 onwards.

Variants

Yak-12 -Basic variant built for military and civilian operators.

Yak-12GR – Floatplane version of the Yak-12.

Yak-12S – Air ambulance version of the Yak-12.

Yak-12SKh – Agricultural version of the Yak-12.

Yak-12R – Improved version of the Yak-12 powered by Ivchenko AI-14R engine and the plane construction became all-metal, built from 1952.

Yak-12M – Main production version with further construction strengthening, a lengthened tailfin and other minor changes, built from 1955.

Yak-12A – Aerodynamically refined version with a slimmer fuselage, engine cover with smaller diameter and some wing modifications, built from 1957.

Yak-12B – Experimental biplane version, not produced.

Shenyang type 5 – Yak-12 licence-built in China.

Jak-12M – Yak-12M licence-built in Poland, 1,054 built.

Jak-12A – Yak-12A licence-built in Poland, 137 built.

PZL-101 Gawron – Polish development of the licence-built Yak-12M.

Specifications

Crew: one

Capacity: three passengers

Length: 9 m (29 ft 6 in)

Height: 3.12 m (10 ft 3 in)

Wing area: 23.8 m2 (256 sq ft)

Airfoil: Clark YH

Empty weight: 1,026 kg (2,262 lb)

Gross weight: 1,450 kg (3,197 lb)

Powerplant: 1 × Ivchenko AI-14R 9-cylinder, air-cooled, radial piston engine, 191 kW (256 hp)

Propellers: 2-bladed fixed-pitch propeller

Performance

Maximum speed: 182 km/h (113 mph, 98 kn) at sea level

Cruise speed: 127 km/h (79 mph, 69 kn) economical

Landing speed: 82 km/h (51 mph; 44 kn)

Range: 765 km (475 mi, 413 nmi)

Service ceiling: 4,160 m (13,650 ft)

Rate of climb: 4.1 m/s (810 ft/min)

Time to altitude: 1,000 m (3,281 ft) in 4 minutes

Take-off run: 126 m (413 ft)

Landing run: 90 m (295 ft).

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