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5 photos from Wikimedia Commons · credits & licences
- 1. Grob G520NG ILA-2022: Boevaya mashina· CC BY-SA 3.0
- 2. G520 EGRETT: Juergen Schiffmann· CC BY-SA 4.0
- 3. Grob G 520 2010-06-11 Andre Gerwing Collection ID 008945: André Gerwing· CC BY-SA 4.0
- 4. Grob G 520NG at ILA Berlin 2022: Alexandru.rosu· CC BY-SA 4.0
- 5. Grob G 520T, ILA 2018, Schönefeld (1X7A6881): Matti Blume· CC BY-SA 4.0
what is it?
The Grob G 520 EGRETT is a turboprop-powered long-endurance, high-altitude reconnaissance and surveillance aircraft designed and produced by the German aircraft manufacturer Grob Aircraft. Since September 1988, it has been the holder of several world records relating to altitude and time to climb. The G 520 was developed during the 1980s to fulfil a joint German Air Force – United States Air Force requirement for a high-altitude, long-duration surveillance platform.
How to recognise it: 1 turboprop · 33 m wingspan
base stats
Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).
fun facts
- First flew 39 years ago, in 1987.
- Top speed is 3.6× a car on the Dutch motorway (130 km/h).
- Wingspan of 33 m: about 7 cars parked nose to tail.
- Range of 3,670 km: 20× Amsterdam to Brussels.
- Can fly 1.7× higher than Mount Everest (8,849 m).
turboprop: A jet-style turbine turning a propeller: efficient on short hops.
spec sheet
- first flight
- 1987
- introduced
- 1991
- number built
- 6
- role
- high-altitude and reconnaissance aircraft
- makers
- Grob Aircraft
- engines
- 1× Honeywell TPE331-14F
- length
- 13.8 m
- wingspan
- 33 m
- height
- 5.7 m
- max take-off weight
- 4,700 kg
- top speed
- 469 km/h
- cruise speed
- 283 km/h
- range
- 3,670 km
- ceiling
- 15,240 m
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q1547174, Wikipedia: Grob G 520 (CC BY-SA 4.0).Updated 2026-10-24.