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M-17

 M-17 stratosphere Dimensions. Engine. The weight. story. Range of flight

The idea of ​​creating a high-altitude aircraft in designer VM. Myasishcheva matured in the late 1930s., and the development of high-altitude bomber DVB-102 began in "sharaga" - NKVD prison, officially known as "Central Design Bureau for CDB-29". At the end of 1960. the world was in a military confrontation between the two countries - the USA and the USSR. US high-altitude reconnaissance aircraft U-2 is constantly flew over our country. 1 May 1960 g. one of them was shot down near Sverdlovsk.

 M-17 stratosphere Dimensions. Engine. The weight. story. Range of flight

Having studied the remnants of, what remained of the aircraft in the fall, We examined the design and even regained its wing profile. VM. Myasishtev, gathered a small group of specialists, I set the task in front of them: study the possibility of aerodynamic configuration of the aircraft, able to carry out the flight in the stratosphere with the lowest subsonic. Designer outlined the scheme developed by the aircraft: straight wing of a very large extension, high load ratio, engine, capable of operating at high altitude. TsAGI specialists have calculated flight data U-2 and received the maximum altitude, equal 21 km, but VM. Myasishcheva this was not enough, We need more. The main thing for this flight - a good profile of the wing and the engine, Rod which when flying in the stratosphere due to the decrease in air density falls to a value, part of all 3% of thrust on the ground. Which began work in the bureau received the name "Subject 17", and future aircraft - M-17.

 M-17 stratosphere Dimensions. Engine. The weight. story. Range of flight

Development of M-17 began with the wing aerodynamics, which should be of the order of coefficient of lift 1,0, you need to cruise at high altitude. As a result of theoretical and experimental studies, conducted jointly by EDO and TSAGI, It was developed by the profile of the new series. But it soon became clear, that at low altitudes airfoil quality drops, It is resulting in greater fuel consumption and a substantial narrowing of the flight envelope. M-17, picked up the same disease, which chronically U-2. Experts still found a way, retractable mechanization trailing edge has been proposed. This allowed us to reduce its area and the concavity depending on the flight mode. The pilot at least climb brings sectional mechanization, increases the wing area, changes concavity, next flight at maximum capacity - the so called "envelope polar". This solution allows to carry out the flight at altitudes of 0 to 25 km. Established design 21 May 1971 g. It is protected by the copyright certificate.

 M-17 stratosphere Dimensions. Engine. The weight. story. Range of flight

Aircraft powerplant M-17 consists of one jet engine RD-36-51V Rybinsk KB PV constructor. Kolesov. Installation of one engine of the aircraft determined the layout of the future, in the case of a normal circuit through the fuselage would have had to drag the pipe to the organization of the nozzle (how the U-2). In the final embodiment it was a double-girder construction with vysokoraspolozhennym high aspect ratio straight wing, supercritical profile having, and short fuselage.

The work was conducted in g. Kumertau (Bashkiria) on the Helicopter Plant and was a bit slow, because it was new to the plant and held with errors and rework. On progress was reflected in the sudden death of VM. Myasishcheva in October 1978 g. The new leader on I became. Sokolov. The first prototype crashed during tests. But work continued, built two more copies, one for static tests, other Summer. Aircraft Tests showed his great potential. AT 1990 g. pilots EMZ them. VM. Myasishcheva found 25 world record height, speed and load capacity for the machine weight class 16-20 tonnes. the highest elevation level flight was achieved - 21 800 m. In connection with the conversion range of tasks has expanded aircraft, one of them - the study of the ozone layer over Moscow within the framework of the project "Global ozone reserve".

 M-17 stratosphere Dimensions. Engine. The weight. story. Range of flight

The performance characteristics of M-17 Stratosfera

– chief designer: VM. Myasishtev, VC. Novikov
– First flight: 26 May 1982 of the year (successful)
– units produced: 3

Crew M-17 Stratosfera

– 1 pilot

Dimensions M-17 Stratosfera

– Length: 22,27 m
– Wingspan: 40,32 m
– Height: 4,87 m
– wing area: 137,7 m²
– airfoil: P-173-9
– The base chassis: 5,618 m
– track chassis: 6,6 m

All M-17 Stratosphere

– Curb weight: 13 790 kg
– Normal takeoff weight: 18 400 kg
– Volume of fuel tanks: 10 000 l

Engine M-17 Stratosphere

– 1 × various LA-36-51V
– pull: 1 × 58,84 kN (6000 kgf) (rated)
– takeoff thrust: 1 × 117,7 kN (12000 kgf)
– Thrust at height 21000 m: 1 × 5,88 kN (600 kgf)

Speed ​​M-17 Stratosfera

– Maximum speed at height 20000 m: 743 kmh
– Maximum speed at height 5000 m: 332 kmh
– Cruising speed: 0,7 M
– landing speed: 188 kmh (when landing mass 16300 kg)
– Time set the ceiling height: 35 min
– The length of the run: 340 m
– path length: 950 m
– fineness: ~30 (planning with the engine switched off)

separation speed M-17 Stratosfera

– 175 kmh

The flight range of M-17 Stratosphere

– practical range: 1 315 km (from high 20250 m to 20620 m)
– flight duration: 2 no 14 min
– patrol time: 48 min

Practical ceiling M-17 Stratosphere

– 21 550 m

Photo M-17 Stratosphere

 M-17 stratosphere Dimensions. Engine. The weight. story. Range of flight

 M-17 stratosphere Dimensions. Engine. The weight. story. Range of flight

M-17 Stratosphere at the Air Force Museum in Monino

 

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