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regional air routes in any geographical setting, in daytime and at night, under
favourable and adverse weather conditions.
The aeroplane is certified under AP-25 airworthiness standards for transport
aircraft.
The design/configuration concept is that of a twin-boom high-wing monoplane
of normal aerodynamic configuration with a highly-mechanised unswept high-aspect-
ratio wing. The tail unit is formed by two vertical fins each placed on one of two tail
booms and joined at the top with a horizontal stabiliser. The plane's fuselage is a
separate module with attachment lugs for nose landing gear, wing and support
pylons. The booms house engines, equipment bays and aeroplane systems. The
fuselage houses a radar bay, cockpit, avionics bay and mixed cargo cabin. The plane
has retractable tricycle landing gear with a nose strut. The cargo ramp in the rear
fuselage is used to board passengers and load/unload cargo.
Рис. 6. The Su-80 GP multi-purpose mixed cargo aircraft
Aeroplane is fitted with two ST7-9B turboprop engines developed by General
Electric (USA), which are installed in the bays at the front of the booms.
The cockpit is engineered for a two-member crew. The standard-configuration
mixed-cargo cabin is designed to accommodate 30 passenger seats in a 2+2
arrangement and a seat for a flight attendant. The total passenger/cargo cabin space
available is 27m3. Luggage space is provided for at the tail-end of fuselage. The
passenger/cargo
cabin design enables its reconfiguration for transport of cargo in
pallets or in bulk.
The plane's takeoff and landing performance and landing gear with low-
pressure tyres make it possible to use it on small airfields, including unpaved, ice and
snow-covered runways.
The aircraft can be used in a wide temperature range: –50˚C to +45˚C.
G limit (operational): +2.7…-1.
The design provides for multi-role configuration:
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mixed cargo aircraft Su-80GP,
