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Grob G 120TP
G120TP Mattsies.jpg
Grob G 120TP
Role Trainer
National origin Germany
Manufacturer Grob Aircraft AG
First flight 2010
Developed from Grob G-120

G 120TP in 2011

G120TP - Air-to-Air

G 120TP at a photoshoot at open sea

The Grob G 120TP is a two seat Turboprop training and aerobatic low-wing aircraft with a composite airframe, built by Grob Aircraft. It is based on the Grob G 120A training aircraft and has been developed for military and civil pilots training. It has a retractable tricycle landing gear and a low tailplane.

The first customer was the Indonesian Air Force. EASA Part 23 Certification has been completed.[1]

Design and developmentEdit

Designed to be a further development of the G 120A, the G 120TP turned during the development process into a nearly new type of aircraft. Due to the new powertrain, the G 120TP offers new capabilities for basic and advanced pilot training where it can be used as a lead in for a jet trainer.[2]

The airframe is made of fiberglass reinforced plastic and is stressed to +6/-4g. The wings are made of carbon fibre composites with winglets.

The cockpit provides room for students and teachers wearing military equipment and helmets. The HOTAS control system is similar to that found in other types of aircraft that students may fly later in their careers. Therefore basic and advanced flight training for future transport aircraft, helicopter or jet pilots will be possible. The cockpit is equipped with movable seats, or optional the new Martin Baker Mk.17 lightweight ejection seats can be chosen. The instrument panel can be equipped with a 4-screen Cobham/Chelton Flight Systems IDU-680 EFIS.[3] An air conditioning system and oxygen system are available as well as a second thrust lever.


G 120TP - Roll-Out-Ceremony Indonesia

Ceremonial handover of 4 of 18 (plus 14 on option) G 120TPs to the Indonesian Air Force.

G 120TP - Roll-Out-Zeremonie Argentinien

Ceremonial handover of the first batch of four G 120TPs (10 ordered, plus 5 on option) to Argentina.

Flag of Argentina.svg Argentina
Argentina is the second operator of the G 120TP - but the first one using the digital cockpit configuration. Deliveries of the first batch of four aircraft started in June 2013. 10 (+5) aircraft were ordered.[4]
Flag of Indonesia.svg Indonesia
The launch customer for the G 120TP was the Indonesian Air Force. Deliveries have started. The contract is for 18 aircraft (+6 follow-up orders out of 14 optional) as well as a G 120TP – Flight Simulation Training Device.[5][6]
Flag of the United Kingdom.svg United Kingdom
The future UK Military Flying Training System (MFTS) program will provide British military pilots elementary training on G 120TPs according to the British MoD. The system replaces separate flying fixed-wing and rotary training programs for the Royal Air Force, Royal Navy and Army Air Corps. The service provider Affinity will include the G 120TP together with the Beechcraft T-6 the initial, basic and advanced training, and with the Embraer Phenom 100 the Transport Pilot segment.[7]


G 120TP at Santorini

G 120TP at Santorini/Greece

Data from Grob[8]

General characteristics
  • Crew: one
  • Capacity: one passenger
  • Length: 8.4 m (27 ft 7 in)
  • Wingspan: 10.3 m (33 ft 10 in)
  • Height: 2.7 m (8 ft 10 in)
  • Wing area: 13.5 m2 (145 sq ft)
  • Empty weight: 1,095 kg (2,414 lb)
  • Max takeoff weight: 1,590 kg (3,505 lb)
  • Fuel capacity: 360 litres (79 imp gal; 95 US gal)
  • Powerplant: 1 × Rolls-Royce M250-B17F Turboprop aircraft engine, 340 kW (456 hp)
  • Propellers: 5-bladed MT Propeller, 2.1 m (6 ft 11 in) diameter


  • Maximum speed: 454 km/h; 282 mph (245 kn)
  • Cruise speed: 435 km/h; 270 mph (235 kn) (at MCP, 10,000 ft)
  • Stall speed: 107 km/h; 67 mph (58 kn) (MSL, landing configuration)
  • Range: 1,074 km; 667 mi (580 nmi) at 5,000 ft and 75% power
  • Ferry range: 1,361 km; 846 mi (735 nmi) at 10,000 ft and 45% power
  • Endurance: 6 hours at 10,000 ft and maximum endurance power setting
  • Service ceiling: 7,620 m (25,000 ft)
  • g limits: +6/-4G
  • Rate of climb: 14.08 m/s (2,772 ft/min)</ul>


G 120TP Digital Cockpit

The Digital Cockpit of the G 120TP consists of 4 EFIS Cobham/Chelton Flight Systems IDU-680.

  • Garmin GTN 650/750
  • Sandel SN3500 EHSI
  • EFIS Cobham/Chelton Flight Systems IDU-680 (optional)

See alsoEdit


External linksEdit

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