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Ridernation · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified
FORCETALLY
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At a glance
Measured figures
G 120A · Length
Single source8.605 m (28 ft 3 in)[source]
KT-1 · Length
Single sourceConfiguration
| Specification | Grob G 120 | KAI KT-1 Woongbi |
|---|---|---|
| Type | Trainer[source] | Basic trainer and light attack aircraft[source] |
| National origin | Germany[source] | South Korea[source] |
| Manufacturer | Grob Aircraft[source] | Korea Aerospace Industries[source] |
| Status | Active in production[source] | In service |
10.3 m (33 ft 10 in)[source]
Empty; G 120A · Empty weight
Single sourceGross; G 120A · Gross weight
Single sourceMaximum take-off; G 120A · Utility
Single source960 kg (2,116 lb)[source]
1,440 kg (3,175 lb)[source]
1,490 kg (3,285 lb) (Utility)[source]
Empty; KT-1 · Empty weight
Single sourceGross; KT-1 · Gross weight
Single sourceCruise; G 120A · at 75% power (1,500 m (5,000 ft))
Single sourceMaximum; G 120A · Maximum speed
Single source319 km/h (198 mph, 172 kn)[source]
307 km/h (191 mph, 166 kn) at 75% power (1,500 m (5,000 ft))[source]
Maximum; 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]
G 120A · at 8,000 ft (2,400 m) and 45% power
Single source1,540 km (960 mi, 830 nmi) at 8,000 ft (2,400 m) and 45% power)[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]
G 120A · 1 × Lycoming AEIO-540-D4D5 air-cooled flat-six
Single source1 × Lycoming AEIO-540-D4D5 air-cooled flat-six , 190 kW (260 hp)[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]
G 120A · at 10,000 ft and maximum endurance power setting
Single source6.35 hours at 10,000 ft and maximum endurance power setting[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.
| Primary users | French Air and Space Force Israeli Air Force Royal Canadian Air Force German Air Force[source] | Republic of Korea Air Force Indonesian Air Force Turkish Air Force Peruvian Air Force Senegalese Air Force[source] |
|---|
| Manufactured | 1999-present[source] | 1999–present[source] |
|---|
| First flight | 1999[source] | November 1991[source] |
|---|
| Developed from | Grob G 115[source] | — |
|---|
| Variant | Grob G 120TP[source] | — |
|---|
| Airfoil | Eppler E884[source] | root: NACA 63-218 ; tip: NACA 63-212[source] |
|---|
| Fuel capacity | 256 litres (56 imp gal; 68 US gal)[source] | 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] |
|---|
| Propellers | 3-bladed Hartzell HC-C3YR-1RF/F7663R, 1.98 m (6 ft 6 in) diameter[source] | 4-bladed Hartzell HC-E4N-2/E9512CB-1, 2.44 m (8 ft 0 in) diameter constant-speed fully feathering reversible propeller[source] |
|---|
| Stall speed | 102 km/h (63 mph, 55 kn) with full flaps[source] | 132 km/h (82 mph, 71 kn) flaps down[source] |
|---|
| Never exceed speed | 435 km/h (270 mph, 235 kn)[source] | 648 km/h (403 mph, 350 kn)[source] |
|---|
| g limits | +6/-4G[source] | + 7 - 3.5 (aerobatic, clean)[source] |
|---|
| Source measurement | The airframe is made of carbon fibre reinforced plastic and is stressed to +6/-4g. Its minimum service life is just over 15,000 flight hours.[source]Grob G 120 · Design and development; only the objects and conditions stated in this passage Piston powered version with a Lycoming AEIO-540-D4D5 six cylinder, four-stroke , air-cooled piston aircraft engine producing 260 hp (194 kW).[source]Grob G 120 · Variants; only the objects and conditions stated in this passage Turboprop powered version with a Rolls-Royce 250-B17F aircraft engine producing 456 shp (340 kW) for take-off and 380 shp (283 kW) for maximum cruise.[source]Grob G 120 · Variants; only the objects and conditions stated in this passage Israeli Air Force : 17 The Snunit used by the IAF has a Lycoming AEIO-540-D4D5 engine that produces a maximum speed of 235 km/h (127 kn).[source]Grob G 120 · Operators; only the objects and conditions stated in this passage Length: 8.605 m (28 ft 3 in)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Wingspan: 10.19 m (33 ft 5 in)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Height: 2.57 m (8 ft 5 in)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Wing area: 13.29 m 2 (143.1 sq ft)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Empty weight: 960 kg (2,116 lb)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Gross weight: 1,440 kg (3,175 lb)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Max takeoff weight: 1,490 kg (3,285 lb) (Utility)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Fuel capacity: 256 litres (56 imp gal; 68 US gal)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Powerplant: 1 × Lycoming AEIO-540-D4D5 air-cooled flat-six , 190 kW (260 hp)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Propellers: 3-bladed Hartzell HC-C3YR-1RF/F7663R, 1.98 m (6 ft 6 in) diameter[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Maximum speed: 319 km/h (198 mph, 172 kn)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Cruise speed: 307 km/h (191 mph, 166 kn) at 75% power (1,500 m (5,000 ft))[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Stall speed: 102 km/h (63 mph, 55 kn) with full flaps[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Never exceed speed : 435 km/h (270 mph, 235 kn)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Range: 1,540 km (960 mi, 830 nmi) at 8,000 ft (2,400 m) and 45% power)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Endurance: 6.35 hours at 10,000 ft and maximum endurance power setting[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Service ceiling: 5,500 m (18,000 ft)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage g limits: +6/-4G[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage Rate of climb: 6.5 m/s (1,280 ft/min)[source]Grob G 120 · Specifications (G 120A); only the objects and conditions stated in this passage | — |
|---|
| Country of origin | Germany[source]Inventory Origin column; table 1, row 17, cell 4; revision 1377212027; retrieved 2026-10-02 | — |
|---|
| Designer | — | Agency for Defence Development Korea Aerospace Industries[source] |
|---|
| Number built | — | 186[source] |
|---|
| Introduction date | — | 2000[source] |
|---|
| Aspect ratio | — |
|---|
| Maximum fuel weight | — | 408 kg (899 lb)[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] |
|---|
Maximum take-off; KT-1 · (and Maximum Landing Weight)with external stores
Single source