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Grob G 120

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Grob G 120
A Grob G 120A from a Canadian flight school
Role Trainer
National origin Germany
Manufacturer Grob Aircraft
First flight 1999
Status Active in production
Primary users French Air and Space Force
Israeli Air Force
Royal Canadian Air Force
German Air Force
Produced 1999-present
Developed from Grob G 115
Variants Grob G 120TP

TheGrob G 120is a two-seat training andaerobaticlow-wing aircraft with a carboncompositeairframe, built byGrob Aircraft.It is based on the GrobG 115TAtraining aircraft and is specially designed for military and civil pilots training. It has a tricycle landing gear and a lowtailplane.

Design and development

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The airframe is made ofcarbon fibre reinforced plasticand is stressed to +6/-4g. Its minimum service life is just over 15,000 flight hours.[1]

The cockpit provides room for students wearing military equipment and helmets. The plane is equipped with movable seats and rudder pedals and an air conditioning system.[citation needed]A second thrust lever is available.[1]

Variants

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G 120A
Piston powered version with aLycoming AEIO-540-D4D5six cylinder,four-stroke,air-cooled pistonaircraft engineproducing 260 hp (194 kW).[2]
G 120TP
Turboproppowered version with aRolls-Royce 250-B17Faircraft engine producing 456 shp (340 kW) for take-off and 380 shp (283 kW) for maximum cruise.[1]

Operators

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One of six G 120A of theKenya Air Force
Grob G-120A badge worn by a Canadian military student pilot from3 CFFTS
Grob G120A used by RCAF
Canada
France
Germany
Israel
Kenya

Specifications (G 120A)

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Data fromJane's All The World's Aircraft 2003–2004[7]

General characteristics

  • Crew:Two
  • Length:8.605 m (28 ft 3 in)
  • Wingspan:10.19 m (33 ft 5 in)
  • Height:2.57 m (8 ft 5 in)
  • Wing area:13.29 m2(143.1 sq ft)
  • Airfoil:Eppler E884
  • Empty weight:960 kg (2,116 lb)
  • Gross weight:1,440 kg (3,175 lb)
  • Max takeoff weight:1,490 kg (3,285 lb) (Utility)[8]
  • Fuel capacity:256 litres (56 imp gal; 68 US gal)
  • Powerplant:1 ×Lycoming AEIO-540-D4D5air-cooledflat-six,190 kW (260 hp)
  • Propellers:3-bladedHartzellHC-C3YR-1RF/F7663R, 1.98 m (6 ft 6 in) diameter[8]

Performance

  • Maximum speed:319 km/h (198 mph, 172 kn)
  • Cruise speed:307 km/h (191 mph, 166 kn) at 75% power (1,500 m (5,000 ft))
  • Stall speed:102 km/h (63 mph, 55 kn) with full flaps
  • Never exceed speed:435 km/h (270 mph, 235 kn)
  • Range:1,540 km (960 mi, 830 nmi) at 8,000 ft (2,400 m) and 45% power)
  • Endurance:6.35 hours at 10,000 ft and maximum endurance power setting[8]
  • Service ceiling:5,500 m (18,000 ft)
  • g limits:+6/-4G
  • Rate of climb:6.5 m/s (1,280 ft/min)

Avionics

See also

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Related development

Aircraft of comparable role, configuration, and era

References

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  1. ^abc"G 120TP - GROB AIRCRAFT SE".grob-aircraft.com.Retrieved7 November2023.
  2. ^"G 120A: High-performance training and aerobatics"(PDF).Grob Aircraft.Retrieved7 November2023.
  3. ^Transport Canada listing of aircraft owned by "Allied Wings"
  4. ^abcde"Fleet Customers".Grob Aircraft.Retrieved26 February2022.
  5. ^IDF confirms Air Force pilot, cadet killed in training mission
  6. ^"GROB G-120A (Hebrew nickname: 'Snunit' ('Swallow'))".Israeli Air Force.
  7. ^Jackson 2003, pp. 166–167.
  8. ^abcGrob Aircraft(n.d.)."Grob 120A Technical Specifications".Retrieved20 March2012.
  • Grob G 115,120 and 140 Information brochure and Technical Datasheet (Grob Aerospace Sales Department, 2004)
  • Jackson, Paul.Jane's All The World's Aircraft 2003–2004.Coulsdon, UK: Jane's Information Group, 2003.ISBN0-7106-2537-5.
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