The Grob 520NG is a German-built high-performance motor glider designed for long-range efficiency, advanced training and research missions, combining composite construction with impressive endurance. Discover Grob 520NG aircraft for sale worldwide on AvPay. Browse active Grob 520NG listings and find available aircraft across the USA, North America, UK, Europe, Asia, Africa, Australia and South America. Connect directly with aircraft brokers, private sellers, flying clubs, flight schools and manufacturers. Explore the full inventory of aircraft for sale on AvPay here!
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Interesting facts about the Grob 520 NG
✈ The Grob 520 family is a high-altitude, long-endurance special mission platform built in Tussenhausen-Mattsies, Germany, by Grob Aircraft SE. The NG modernises the type with updated systems and powerplant.
✈ The airframe uses all-composite construction and a very high aspect-ratio wing. The wingspan measures 33.00 m, similar to some airliners, which helps efficiency at altitude.
✈ The NG programme equips the aircraft with a Pratt & Whitney Canada PT6A-67A engine rated to operate up to 45,000 ft, improving reliability and support compared with earlier TPE331-powered variants.
✈ Grob designed the 520 with a modular lower fuselage. Thirteen dedicated payload bays allow rapid sensor swaps without changes to the primary structure, reducing integration time and cost.
✈ Typical roles include ISR, border and maritime surveillance, environmental research, atmospheric sampling and communications relay. Agencies have also used the type for science missions at high altitude.
✈ Certified short-runway performance supports operations from regional fields. At MTOW it needs about 670 m to clear 50 ft on take-off and about 685 m to land over 50 ft, ISA, no wind.
✈ The platform supports Optionally Piloted Vehicle concepts. Grob flight-tested a full-authority autopilot and remote operation as part of the path to the NG.
✈ The 520 family has demonstrated operations around 45,000 to 50,000 ft on mission, with endurance up to several hours depending on payload and profile.
Grob 520 NG Specifications
Information provided here is as a guide only. Do not use this for flight planning or aircraft operations. Model differences, options, modifications, upgrades and age affect the values below. Always confirm exact specifications with the seller, manufacturer or aviation authority.
Length: 13.82 m (45 ft 4 in)
Wingspan: 33.00 m (108 ft 3 in)
Height: 5.66 m (18 ft 7 in)
Empty Weight: 3,300 kg (7,275 lb)
Max Take Off Weight (MTOW): 4,700 kg (10,362 lb)
Fuel Capacity: 1,070 kg (2,359 lb) usable
Cruise Speed: 283 km/h (176 mph, 153 kn) at 11,000 m (35,000 ft), ISA, MTOW
Range: 3,670 km (2,280 mi, 1,980 nm) at 15,000 m (50,000 ft), ISA, MTOW, 45 min reserve, 500 kg payload
Service Ceiling (certified): 13,716 m (45,000 ft)
Demonstrated Max Altitude: 15,240 m (50,000 ft) on mission profiles
Rate of Climb: 7.3 m/s (1,440 ft/min) (typical)
Take-off Distance over 15 m (50 ft): 670 m (2,200 ft), ISA, MTOW, no wind
Landing Distance over 15 m (50 ft): 685 m (2,247 ft), ISA, MLW, no wind
FAQs About the Grob 520 NG
How much does a Grob 520 NG cost?
Pricing is bespoke and depends on mission equipment, certification, support and spares. As of 2025 there is no reliable public list price for the Grob 520 NG. Buyers typically receive quotations on application for the specific payload and integration package at the time of purchase.
What roles can a Grob 520 NG perform?
It supports ISR, border security, maritime patrol, environmental monitoring, atmospheric research, communications relay and flight inspection. The modular payload bay system lets operators reconfigure sensors quickly for new missions.
What engine does the Grob 520 NG use?
The NG uses a Pratt & Whitney Canada PT6A-67A turboprop driving a four-blade Hartzell propeller. The PT6A-67A is civil-certified for single-engine IFR operations and rated for operation up to 45,000 ft.
How high does the Grob 520 NG fly?
The certified operating ceiling is 45,000 ft. In service the platform has demonstrated missions at up to about 50,000 ft, depending on weight, temperature and payload.
What runway length does the Grob 520 NG need?
At MTOW and ISA conditions it needs about 670 m to clear 50 ft on take-off and about 685 m to land over 50 ft. These figures vary with elevation, temperature, wind, runway surface and aircraft weight.
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