Grob G-120A

The composite trainer built for basic military flight instruction

Overview

Grob Germany ICAO: G120 1999–Present Active $900,000

The Grob G-120A is a two-seat composite training aircraft developed for military and civilian flight schools. Designed to provide modern handling and low operating costs, it supports early-phase pilot training. The aircraft reflects Grob’s emphasis on composite airframe technology.

Live Fleet Activity (G120)

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Specifications

Units
Engine
1 × Lycoming AEIO-540-D4D5 6-cylinder
Engine type
Piston
Power
260 hp · 194 kW
Avionics
IFR instrumentation with EFIS and King / Bendix components
Wing tips
No winglets
Seats
2
Crew
—
Cabin width
—
Cabin height
—
Cabin length
—
Exterior length
26 ft 7 in  ·  8.11 m
Tail height
8 ft 9 in  ·  2.66 m
Fuselage diameter
4 ft 3 in  ·  1.30 m
Wing span
33 ft 5 in  ·  10.18 m
Baggage volume
—
Gross weight
—
Empty weight
—
Max takeoff weight
3,300 lb  ·  1,500 kg
Max landing weight
3,150 lb  ·  1,450 kg
Max payload
500 lb  ·  200 kg
Fuel capacity
70 gal · 300 L · 200 kg (AvGas)
Max cruise speed
172 kt  ·  198 mph  ·  319 km/h
Maximum speed
—
Cruise speed
—
Approach speed
56 kt  ·  64 mph  ·  104 km/h
Range
830 nm  ·  960 mi  ·  1,540 km
Fuel burn
14.30 nm/gal  ·  7.00 km/L
Ceiling
18,000 ft  ·  5,500 m
Rate of climb
1,280 ft/min  ·  7 m/s
Takeoff distance
2,300 ft  ·  710 m
Landing distance
1,840 ft  ·  560 m
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Grob G120A-F ‘F-GUKE’

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Operational Context

Grob G-120A — composite basic trainer

The G-120A first flew in the late 1990s as part of Grob’s expanding trainer portfolio. It was developed to provide a durable and efficient platform for ab initio military flight training. The aircraft features a low-wing composite structure with side-by-side seating and tricycle landing gear.

Powered by a Lycoming AEIO-540 piston engine producing approximately 260 horsepower, the G-120A cruises at around 140 knots (260 km/h). Maximum takeoff weight is about 2,650 pounds (1,200 kg). The airframe is stressed for aerobatic training within defined limits.

The G-120A has been adopted by several air forces as an economical training solution before students transition to more advanced aircraft. Its composite construction reduces corrosion and maintenance demands. The aircraft remains a practical example of modern basic trainer design.