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]
Yak-18A · Length
Single sourceConfiguration
| Specification | KAI KT-1 Woongbi | Yakovlev Yak-18 |
|---|---|---|
| Type | Basic trainer and light attack aircraft[source] | Training aircraft[source] |
| National origin | South Korea[source] | — |
| Manufacturer | Korea Aerospace Industries[source] | Yakovlev[source] |
| Designer | Agency for Defence Development Korea Aerospace Industries[source] | — |
| Status | In service[source] |
8.35 m (27 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; Yak-18A · Empty weight
Single sourceMaximum take-off; Yak-18A · Max takeoff weight
Single sourceFerry; 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]
Yak-18A · Range
Single source700 km (430 mi, 380 nmi)[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]
Yak-18A · 1 × Ivchenko AI-14RF 9-cylinder air-cooled radial piston engine
Single source1 × Ivchenko AI-14RF 9-cylinder air-cooled radial piston engine, 224 kW (300 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]
KT-1 · (3,500 ft/min) at sea level, clean
Single source17.78 m/s (3,500 ft/min) at sea level, clean[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
in limited service[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 People's Liberation Army Air Force Polish Air Force[source] |
|---|
| Number built | 186[source] | — |
|---|
| Manufactured | 1999–present[source] | — |
|---|
| Introduction date | 2000[source] | 1946[source] |
|---|
| First flight | November 1991[source] | 1946[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] | — |
|---|
| Aspect ratio | — |
|---|
| Airfoil | root: NACA 63-218 ; tip: NACA 63-212[source] | root: Clark YH (14.5%); tip: Clark YH (9.3%)[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 variable-pitch propeller[source] |
|---|
| Stall speed | 132 km/h (82 mph, 71 kn) flaps down[source] | — |
|---|
| Never exceed speed | 648 km/h (403 mph, 350 kn)[source] | — |
|---|
| g limits | + 7 - 3.5 (aerobatic, clean)[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] | — |
|---|