The Antonov An-180 was a Ukrainian design for a twin-aisle medium-range propfan airliner. Although the design was completed by the Antonov Design Bureau in 1994, the type was not built.[1]
| An-180 | |
|---|---|
 | |
| A design drawing of the proposed airliner | |
| Role | Wide-body propfan airliner |
| National origin | Soviet Union / Ukraine |
| Design group | Antonov Design Bureau |
| Built by | Production Corporation Polyot Kharkiv Aviation Plant |
| Status | Canceled |
| Number built | 0 |
Development
The An-180 was designed as a replacement for the aging Tupolev Tu-134 and Yakovlev Yak-42 airliners.[2] Antonov was discussing this aircraft in Soviet aviation publications as early as October 1990, describing the An-180 as a 164-180 passenger plane with a range of 1,300 to 1,600 nautical miles (2,500 to 3,000 kilometres; 1,600 to 1,900 miles) and a per-passenger fuel consumption of 14 to 15 grams per kilometre (0.79 to 0.85 ounces per mile).[3] The proposed aircraft was introduced to the world at the 1991 Paris Air Show.[4] As of September 1991, the An-180 had a T-tail design with the propfan engines attached to the aft fuselage,[5] but Antonov later modified the design so that the engines were attached to the ends of the horizontal stabilizer in a conventional tail configuration.[6] In 1992, Ukraine and China were studying whether to jointly develop the aircraft.[7]
In April 1994, a prototype of the aircraft was tested at the Russian Central Aviation Institute's transonic wind tunnel, with follow-up tests in July to finalize the design, but financial problems delayed the completion of the study as of November 1994.[8] By February 1995, joint manufacturing was expected to begin at the aircraft factories in Kharkiv, Ukraine and the Production Corporation Polyot plant in Omsk, Russia.[9] Because of extreme funding shortfalls from the Ukraine government, however, the development of the An-180 was fully suspended by August 1995.[10] In 1999, D-27 engines created by the Progress Design Bureau were still expected to be built for the An-180, according to the CEO of Motor Sich,[11] the Ukrainian manufacturer of the D-27.[12] Subsequent attempts to obtain commercial investment failed, though, and by 2004, the An-180 was no longer an Antonov project.[13]
As of 2003, the fuselage of an uncompleted An-180 aircraft remained in storage in a building used for assembly of Antonov's experimental models.[14]
Design
The An-180 was a conventionally designed low-wing cantilever monoplane with a conventional tail unit. The unusual feature was the mounting of an Ivchenko Progress D-27 propfan mounted at the end of each tailplane.[1] Each propfan was to have a coaxial contra-rotating tractor propeller, and the An-180 was also designed with a retractable landing gear with twin nosewheels, and tandem pairs of mainwheels.[1]
It was planned to have a number of variants with seating starting at 150–156 passengers, to a larger variant for 200 passengers, and it was also planned to build a combination passenger/freight and an all-freight variant.[1] The cabin is configured to use two aisles, with a seating row containing two seats each between an aisle and the adjacent windows/cabin walls, and two seats between the two aisles.[15] The undercarriage can store seven LD3-46 unit load devices.[1]
Specifications
Data from Brassey's World Aircraft & Systems Directory[1]
General characteristics
- Crew: two or three
- Capacity: 163
- Length: 40.9 m (134 ft 2 in)
- Wingspan: 35.83 m (117 ft 7 in)
- Diameter: 4.3 m (14 ft 1 in) (fuselage)[16]
- Height: 11.148 m (36 ft 7 in)
- Empty weight: 42,500 kg (93,696 lb) [16]
- Max takeoff weight: 71,700 kg (158,071 lb) normal takeoff weight 67,500 kg (148,812 lb)[16]
- Powerplant: 2 × Ivchenko Progress D-27 propfan, 10,305 kW (13,819 hp) each at take off
- Propellers: 8 fore, 6 aft-bladed Aerosila SV-27 axial contra-rotating tractor
Performance
- Cruise speed: 800 km/h (500 mph, 430 kn)
- Range: 3,300 km (2,100 mi, 1,800 nmi) maximum takeoff weight; 1,800 km (1,100 mi; 970 nmi) normal takeoff weight[16]
- Service ceiling: 10,100 m (33,100 ft) cruise
See also
References
Notes
External links
- Salnikov, Yuri Petrovich (Director) (1991). Легенда Боинга. Фильм II. Уроки Боинга [The legend of Boeing. Part II: The lessons of Boeing.] (Television production) (in Russian). Interviews with Yakovlev general designer A. Dondukov and Antonov general designer P. V. Balabuyev. Event occurs at 39:42 and 40:51 – via sibnet.ru.
{{cite AV media}}: CS1 maint: others in cite AV media (notes) (link) - "An-180 project by ANTK O.K.Antonov". Archived from the original on October 19, 2007. Retrieved October 22, 2019.