Credit
Doo Ho Kim · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified
FORCETALLY
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At a glance
Measured figures
KT-1 · Length
Single source10.3 m (33 ft 10 in)[source]
Iak 52 · Length
Single sourceConfiguration
| Specification | KAI KT-1 Woongbi | Yakovlev Yak-52 |
|---|---|---|
| Type | Basic trainer and light attack aircraft[source] | Trainer , COIN[source] |
| National origin | South Korea[source] | Soviet Union[source] |
| Manufacturer | Korea Aerospace Industries[source] | Yakovlev Aerostar[source] |
| Designer | Agency for Defence Development Korea Aerospace Industries[source] | — |
7.745 m (25 ft 5 in)[source]
Empty; KT-1 · Empty weight
Single sourceGross; KT-1 · Gross weight
Single sourceMaximum take-off; KT-1 · (and Maximum Landing Weight)with external stores
Single source1,910 kg (4,211 lb)[source]
2,540 kg (5,600 lb)[source]
3,311 kg (7,300 lb) (and Maximum Landing Weight)with external stores[source]
Empty; Iak 52 · Empty weight
Single sourceMaximum take-off; Iak 52 · Max takeoff weight
Single sourceMaximum; KT-1 · at 4,570 m (14,993 ft)
Single source644 km/h (400 mph, 348 kn) at 4,570 m (14,993 ft)[source]
Ferry; KT-1 · at 6,100 m (20,013 ft) with max internal and external fuel (30 minutes reserve)
Single sourceKT-1 · at 7,620 m (25,000 ft) with max internal fuel (30 minutes reserve)
Single source1,333 km (828 mi, 720 nmi) at 7,620 m (25,000 ft) with max internal fuel (30 minutes reserve)[source]
2,070 km (1,290 mi, 1,120 nmi) at 6,100 m (20,013 ft) with max internal and external fuel (30 minutes reserve)[source]
Iak 52 · at 500 m (1,600 ft)
Single source550 km (340 mi, 300 nmi) at 500 m (1,600 ft)[source]
KT-1 · 1 × Pratt & Whitney Canada PT6A-62 turboprop engine
Single source1 × Pratt & Whitney Canada PT6A-62 turboprop engine, 708.4 kW (950.0 hp)[source]
Iak 52 · 1 × Vedeneyev M-14P nine-cylinder radial engine
Single source1 × Vedeneyev M-14P nine-cylinder radial engine , 270 kW (360 hp)[source]
KT-1 · < at 6,100 m (20,013 ft) with max internal fuel (
Single sourceKT-1 · reserve
Single source<4 hours at 6,100 m (20,013 ft) with max internal fuel (30 minutes reserve)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Status | In service[source] | Operational[source] |
|---|
| Primary users | Republic of Korea Air Force Indonesian Air Force Turkish Air Force Peruvian Air Force Senegalese Air Force[source] | Soviet Air Force DOSAAF Ukrainian Army Aviation[source] |
|---|
| Number built | 186[source] | — |
|---|
| Manufactured | 1999–present[source] | 1978–1998[source] |
|---|
| Introduction date | 2000[source] | 1979[source] |
|---|
| First flight | November 1991[source] | 1976[source] |
|---|
| Fuel capacity | 551 L (146 US gal; 121 imp gal) in two wing tanks with provision for two 189 L (50 US gal; 42 imp gal) drop-tanks on the inboard pylons[source] | 122 L (32 US gal; 27 imp gal)[source] |
|---|
| Aspect ratio | — |
|---|
| Airfoil | root: NACA 63-218 ; tip: NACA 63-212[source] | Clark YN[source] |
|---|
| Maximum fuel weight | 408 kg (899 lb)[source] | — |
|---|
| Propellers | 4-bladed Hartzell HC-E4N-2/E9512CB-1, 2.44 m (8 ft 0 in) diameter constant-speed fully feathering reversible propeller[source] | 2-bladed V-530TA-D35 constant-speed propeller , 2.40 m (7 ft 10 in) diameter[source] |
|---|
| Stall speed | 132 km/h (82 mph, 71 kn) flaps down[source] | 85–90 km/h (53–56 mph, 46–49 kn) flaps down, engine idling[source] |
|---|
| Never exceed speed | 648 km/h (403 mph, 350 kn)[source] | 360 km/h (220 mph, 190 kn)[source] |
|---|
| g limits | + 7 - 3.5 (aerobatic, clean)[source] | +7/-5[source] |
|---|
| Wing loading | 206.8 kg/m 2 (42.4 lb/sq ft) with external stores[source] | — |
|---|
| Power/mass | 0.2137 kW/kg (0.1300 hp/lb)with external stores[source] | — |
|---|
| Developed from | — | Yakovlev Yak-50[source] |
|---|
| Developed into | — | Yakovlev Yak-53[source] |
|---|
| Time to altitude | — | 15 min to 4,000 m (13,000 ft)[source] |
|---|
| Role | — | Soviet primary trainer aircraft[source] |
|---|
| Source measurement | — | A descendant of the single-seat competition aerobatic Yakovlev Yak-50 , the all-metal Yak-52 is powered by a 268 kW (360 hp) Vedeneyev M14P nine-cylinder radial engine .[source]Yakovlev Yak-52 · Design and development; only the objects and conditions stated in this passage The aircraft has fuel and oil systems permitting inverted flight for as long as two minutes. The engine drives a two-bladed counter-clockwise rotating, variable pitch, wood and fiberglass laminate propeller.[source]Yakovlev Yak-52 · Design and development; only the objects and conditions stated in this passage At 998 kg (2,200 lb) empty weight, the Yak-52 has been used in international aerobatic competition up to the Advanced level. It is stressed to +7 and –5 Gs, rolls (to the right) at well more than 180 degrees/second (measured up to 352 degrees/second to the right), and is capable of every manoeuvre in the Aresti catalog .[source]Yakovlev Yak-52 · Design and development; only the objects and conditions stated in this passage A number of "westernised" versions of the Yak-52 are now produced. The replacement of the existing Soviet avionics , fitting of a three-blade propeller and the M14PF 298 kW (400 hp) upgrade to the usual 360 hp M14P engine, and conversion to conventional "tail-dragger" landing gear (Yak-52TD) are some of the modifications made to the standard aircraft. There is also a factory-produced Yak-52TW tail-dragger version by Aerostar. The TW has an extra 120 L (32 US gal) of fuel capacity in two extra wing tanks, the M14PF engine designated & three blade propeller, an electric start, and modern instruments.[source]Yakovlev Yak-52 · Design and development; only the objects and conditions stated in this passage On 16 April 2004, a modernised variant Yak-52M was flown in Russia. It is fitted with modernised M-14Kh engine, three-blade propeller, and other modifications.[source]Yakovlev Yak-52 · Design and development; only the objects and conditions stated in this passage Two-seat primary trainer aircraft, powered by a 360-hp (268-kW) Vedeneyev M-14P nine-cylinder radial piston-engine.[source]Yakovlev Yak-52 · Variants; only the objects and conditions stated in this passage Yak-52M[source]Yakovlev Yak-52 · Variants; only the objects and conditions stated in this passage Modified Yak-52 with more powerful M-14PF engine and a tailwheel configuration by Termikas Ltd in Lithuania. Modifications include a set of wings with integrated aerobatic and ferry tanks (total capacity 230 litres), and allow complete retraction (no portions of the gear/main strut extend below wing structure). Bulletin 60 (strong joint fittings of the main spar) and Bulletin 107 (steel strap on the main spar installed) also completed at modification.[source]Yakovlev Yak-52 · Variants; only the objects and conditions stated in this passage In late 2025, the World Air Forces publication by FlightGlobal , which tracks the aircraft inventories of world's air forces and publishes its counts annually, published the World Air Forces 2026 report. According to that report, the only military operator of Yak-52 in the world is the Romanian Air Force with 14 aircraft.[source]Yakovlev Yak-52 · Operators; only the objects and conditions stated in this passage Length: 7.745 m (25 ft 5 in)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Wingspan: 9.30 m (30 ft 6 in)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Height: 2.70 m (8 ft 10 in)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Wing area: 15.00 m 2 (161.5 sq ft)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Empty weight: 1,015 kg (2,238 lb)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Max takeoff weight: 1,305 kg (2,877 lb)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Powerplant: 1 × Vedeneyev M-14P nine-cylinder radial engine , 270 kW (360 hp)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Propellers: 2-bladed V-530TA-D35 constant-speed propeller , 2.40 m (7 ft 10 in) diameter[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Maximum speed: 285 km/h (177 mph, 154 kn) at sea level[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Cruise speed: 190 km/h (120 mph, 100 kn) at 1,000 m (3,300 ft) (econ cruise)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Stall speed: 85–90 km/h (53–56 mph, 46–49 kn) flaps down, engine idling[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Never exceed speed : 360 km/h (220 mph, 190 kn)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Range: 550 km (340 mi, 300 nmi) at 500 m (1,600 ft)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Service ceiling: 4,000 m (13,000 ft)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Rate of climb: 5.00 m/s (985 ft/min)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage Time to altitude: 15 min to 4,000 m (13,000 ft)[source]Yakovlev Yak-52 · Specifications (Iak 52); only the objects and conditions stated in this passage |
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