ACCESS: Above Top Secret
- Apr 2, 2006
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RUSSIA’S MYASISHCHEV design bureau has designed a passenger/cargo aircraft based on the high altitude M-60 which it designed in the 1980s. The design features long unswept wings, a wide "lifting body" fuselage, and two high bypass ratio turbofans installed side by side above the rear part of the fuselage.
The M-60 was originally optimised for battlefield surveillance and airborne early warning and control, and was designed to cruise for 8 h at an altitude of 65,500 ft (20,000 m) and a speed of Mach 0.7, although no examples were completed. Myasishchev is now talking about a high altitude transport aircraft based on the M-60 configuration, dubbed the GP-60 (gruzo-passazhirsky - cargo-passenger).
Powered by two Perm PS-90A turbofans adapted for high altitude operation, the GP-60 is offered in various sizes, with capacity for up to 500 passengers and a range of 5,000-15,000 km (2,700-8,l00 nm), depending on payload. A diagram showed a model, the GP-60D Katun, weighting 62.5 t and able to carry a payload of 20 t over 5,000 km.
The aircraft’s design incorporates a wide "lifting body" fuselage, which acts as a low aspect ratio wing, coupled with an unswept high aspect ratio supercritical wing and tailplanes with leading-edge extensions/vortex generators. Windtunnel models have demonstrated a lift to drag ratio of 5:27 at cruise altitudes of 43,000-49,000 ft - compared with 17:18 for current airliners - and the ability to maintain controlled flight at angles of attack in excess of 20.
It's stated that idea of such wing/body/inlets combination appeared ca.1974 and was heavily influenced by Bartini VVA-14 studies (you see photo named m-60 proto that shows pre-pre-M-60),
flateric said:Regarding Tacit Blue and TSSAM influence, El, it's still remains classified (and will be for a long time I sure) what we knew/know about actual Western studies and designs. AFAIK, ATB program has some serious security leaks in 80s in spite of all attempts, and quick look at these Myasichev's M-67 designs (it's 1987!) can give an idea what we knew.
M-60B (the project)
DATA FOR 2015 (standard completion)
M-60B (the project)
The draft strategic bomber. Developing the concept of a multi-purpose high-altitude subsonic aircraft (MVDS) launched the initiative in KB EMZ them. B, M, Myasishcheva in 1979, Chief Designer - M.A.Guryanov (from 1994 to 1997, before the head of the research theme), Vice - B.M.Morkovkin. February 26, 1986 instructed the Minister out of the aviation industry I.S.Silaeva to conduct R & D on MVDS. In May 1985, EMR begins the theme of "theoretical, design and experimental studies to establish wide-body aircraft" (code "60"). At the beginning of 1986 it formalized and presented in MAP USSR technical proposal to create MVDS dual purpose. May 11, 1986 issue of the decree of the USSR №1114 MAP to conduct research on "60". At the end of 1989 is a contract between the EMR and MAP of the USSR to develop preliminary design MVDS dual purpose. May 15, 1991 preliminary design materials for civilian version of the aircraft considered MAP USSR leadership, which decided on the preparation of the TOR for the development of the aircraft. In July 1991 the Commission presented the materials of preliminary design military customers that odobrela submissions and recommended the development of conceptual design of the aircraft. In October 1991 an agreement was signed for the development of conceptual design M-60. As of November 1998 EMZ im.V.M.Myasischeva with the project M-60B aircraft took part in the competition for the development of the Russian Air Force strategic aviation aircraft (source) . It was planned that the winner will be announced in 1999, but in the end there were only the requirements to PAK DA (PAK DA). In addition to M-60B participated in the competition projects Tupolev and Sukhoi. Drafting bomber stopped in 2001,
As Antony Angrand and Piotr Butowski write in the article " M-60 ou l'avion de ligne futuriste russe ", published in the magazine Air & Cosmos , during the airshow in Le Bourget, United Aircraft Corporation (UAC) presented a model of a futuristic aircraft type M-60 with an elongated fuselage designed EMZ them. Myasishchev. This project is similar to the development of Nova (French research center ONERA) and D8 from NASA.
M-60 is developed in EMZ them. Myasishchev (known as the developer of the M-4 bomber and high-altitude M-55 Geophysica aircraft) within the R & D series conducted by the Russian aviation industry. Funds for them are allocated from 2011 on the target program "Aircraft-2020". Among the pre-projects presented under this program, a supersonic business jet aircraft, a transport aircraft in the form of a flying wing, and an airplane on cryogenic fuel appear.
A model of the prospective M-60 aircraft developed by JSC "EMZ named after Myasishchev" at the stand of PJSC United Aircraft Corporation at the air show in Le Bourget, June 17, 2017 (с) Mikhail Zherdev / Facebook
The M-60 project is distinguished by a glider with large-extension wings and a bearing fuselage, which improves the characteristics of the wing. Two powerful flows are generated on the fuselage, which allow air to flow smoothly around the fuselage (without swirls) at large angles of attack. Wings with a small sweep angle and a large elongation, as well as a V-shaped vertical tail unit are installed on top of the fuselage. According to the KB, such a scheme allows to increase the aerodynamic quality from 19 to 21 at a speed of 0.76M. The main advantage of such a scheme is the unique capabilities that the fuselage gives.
The engines are mounted above the fairing of the tail unit, which avoids limitations on the engine diameters, as well as the degree of double circuit. The streams generated by the fuselage flow around the top of the tail section of the fuselage, so that the air intakes can operate in stable conditions without the risk of surging. The engines are also protected against ingress of foreign particles, and their noise is reduced due to the vertical tail and tail of the fuselage.
The design of the fuselage of the M-60 (c) Piotr Butowski / Air & Cosmos
The large fuselage carrier is the main technological challenge of the M-60 project. A sealed construction of this kind is very difficult to manufacture. When using a conventional design, amplifications must be installed to obtain sufficient strength of the long fuselage, and this increases the fuselage and leads to a decrease in the characteristics of the aircraft. According to the EMZ im. Myasishchev, due to the use of new technologies, it is possible to create a fuselage of this type, which will have the same resistance and mass as the fuselages of the round section. Currently EMZ them. Myasishcheva develops an elongated fuselage with frames and stringers of composite materials, which will then be used for static testing.
In fact, this project has much in common with the M-60 project, which was initiated by Myasishchev Design Bureau in 1979 and then reappeared in various forms. In May 1986, this project was approved by the Ministry of Aviation Industry of the USSR, which allowed the allocation of Myasishchev's state funds for the first time. The aerodynamic scheme of the M-60 was chosen for a high-altitude reconnaissance aircraft, and everything was subordinated to the task of reaching an altitude of 25,000 meters with a large fuel reserve and target equipment. As soon as it became clear that the large carrier fuselage has advantages not only for high-altitude reconnaissance planes, Myasishchev KB has developed a series of aircraft designs of various dimensions for various tasks. Projects based on the M-60 participated in various competitions, but without success. In 2003, the M-60-200 variant was proposed as a competitor to the MC-21 aircraft developed by the Irkut Corporation as a passenger aircraft on medium-length lines. M-60TVTS, which was an airplane of more modest size, had no chance, since eventually the Il-112V project was chosen as a light transport aircraft. The draft of the strategic bomber M-60B lost to the project of KB Tupolev during the competition under the PAK YES program. Currently, the M-60 can take part in the competition for a prospective transport aircraft (PTS), which will include a family of aircraft carrying capacity from 80 to 240 tons.
At the Le Bourget Air Show in France, an unusual concept for the M-60 aircraft was developed. Myasishchev, created by a fundamentally different scheme than modern aircraft. The corresponding message is published on the official Facebook page of the United Aircraft Corporation.
The plane with the elliptical fuselage M-60 will have an upper position of the engines to shield their noise, and in addition, it is possible to use a "comb" of electric motors and one large engine-generator. These and other innovations, according to the developers, will significantly improve the characteristics of such a scheme in comparison with the standard.
The designers of the concept are sure that the layout of the "pipe with the wing" with the engines hanging on it has almost outlived itself and it is unlikely that it will be possible to "squeeze" out of it something to increase the performance.
The only reserve of improvement is the reduction of the integral frictional force. This can be done by changing the shape of the aircraft, which will allow for the management of the boundary layer on certain sections of the surface, so that the air flow around the aircraft or its wing and tail is laminar.
It should be noted that OKB Myasishchev has many times offered aircraft designs of unique schemes. So, the abbreviation M-60 was also bomber, which was supposed to use nuclear engines of open type and which was not built because of the enormous complexity of the project.
Russia's United Aircraft Corp. (UAC, Chalet 361) is showing off the latest iteration of its M-60 concept aircraft (Hall 2a Stand B198), featuring a lifting body, unswept wing and engines mounted above a wide composite fuselage.
The design, a joint effort of the Central Aerohydrodynamic Institute (tsAGI) and Myasishchev Design Bureau, offers myriad potential benefits over conventional configurations, according to UAC, including improved safety and aerodynamic performance. A notional small regional aircraft based on the concept could have about 50 seats and three aisles with a range of 3,000 miles, UAC said.
Elements of the concept have been tested for years as part of exploring non-traditional configurations, UAC noted. Future work, part of a broader effort to develop next-generation aircraft designs, will include more aerodynamic modeling and perhaps a working demonstrator.