Shvetsov M-11: Difference between revisions

M-11
	Shvetsov M-11F
Type	Radial engine
Manufacturer	Shvetsov
First run	Template:Avyear
Number built	100,000+

Browse history interactively

← Previous edit Next edit →

Content deleted Content added

VisualWikitext

Inline

Revision as of 10:13, 6 November 2014

The Shvetsov M-11 is a five-cylinder air-cooled radial aircraft engine produced in the Soviet Union between 1923 and 1952.^[1]

Design and development

The Shvetsov M-11 was designed under a 1923 competition in the Soviet Union for a new engine to power trainer aircraft. It is a single-row five-cylinder air-cooled radial piston engine with aluminum cylinder heads. Like the American Kinner B-5 5-cylinder radial of similar size, the M-11 had individual camshafts for each cylinder, operating the pushrods, rather than a single central cam ring. The initial versions of the M-11 suffered from a short service life of only 50 hours. The basic M-11 engine had a power output of 100 hp (73 kW), the newer M-11D variant was higher at 125 hp (92 kW). The ultimate version, M-11FR, introduced in 1946, increased power output to 160 hp at 1,900 rpm on takeoff and 140 hp at cruise and had provisions for a variable-pitch propeller, accessory drive (for vacuum pumps, compressors, generators, etc.) and featured a floatless carburetor.

Applications

The M-11 powered a number of aircraft, including the Polikarpov Po-2, Yakovlev UT-1, Yakovlev UT-2, Yakovlev Yak-6, Yakovlev Yak-12, Yakovlev Yak-18, Shcherbakov Shche-2 and Mikoyan-Gurevich MiG-8. It also powered the Polish LWD Junak, PZL S-4 Kania and Bulgarian Laz-7M (Лаз-7М ). The M-11 remained in production until 1952 with an estimated total of over 100,000 engines made. Several hundreds of M-11D and M-11FR-1 variants were manufactured under license in the Polish WSK-Kalisz works in Kalisz. It was also used for the up-engined GAZ-98K aerosani winter-used sled in a pusher configuration (as airboats use today), and as the standard powerplant for the similar NKL-26 propeller-driven sledges during the World War II years.

Specifications (M-11A)

Data from Kotelnikov.^[2]

General characteristics

Type: 5-cylinder air-cooled radial engine
Bore: 125 mm (4.92 in)
Stroke: 140 mm (5.51 in)
Displacement: 8.6 L (525 in³)
Dry weight: 165 kg (363 lb)

Components

Cooling system: Air-cooled

Performance

Power output:
82 kW (110 hp) at 1,650 rpm for takeoff
75 kW (100 hp) cruise
Specific power: 9.5 kW/L (0.21 hp/in³)
Compression ratio: 5:1
Power-to-weight ratio: 0.5 kW/kg (0.3 hp/lb)

References

Notes

^ Gunston 1989, p.158.
^ Kotelnikov 2005, p.

Bibliography

Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
Kotelnikov, Vladimir. Russian Piston Aero Engines. Marlborough, Wiltshire. The Crowood Press Ltd. 2005. ISBN 1-86126-702-9.

[1] Gunston 1989, p.158.

[2] Kotelnikov 2005, p.

[1]

[2]

@@ Line 23: / Line 23: @@
 ==Design and development==
-The '''[[Shvetsov]] M-11''' was designed under a 1923 competition in the [[Soviet Union]] for a new engine to power [[trainer aircraft]]. It is a single-row five-cylinder air-cooled [[radial engine|radial]] [[piston engine]] with aluminum cylinder heads. Like the American [[Kinner B-5]] 5-cylinder radial of similar size, the M-11 had individual [[camshaft]]s for each cylinder, operating the [[pushrod]]s, rather than a single central cam ring. The initial versions of the M-11 suffered from a short service life of only 50 hours. The basic M-11 engine had a power output of 100 hp (73 kW), the newer M-11D variant was higher at 125 hp (92 kW). The ultimate version, M-11FR, introduced in 1946, increased power output to 160 hp at 1,900 rpm on takeoff and 140 hp at cruise and had provisions for a variable-pitch [[Propeller (aircraft)|propeller]], accessory drive (for [[vacuum pump]]s, [[Gas compressor|compressors]], [[electrical generator|generators]], etc.) and featured a floatless [[carburetor]].
+The '''[[Shvetsov]] M-11''' was designed under a 1923 competition in the [[Soviet Union]] for a new engine to power [[trainer aircraft]]. It is a single-row five-cylinder air-cooled [[radial engine|radial]] [[piston engine]] with aluminum cylinder heads. Like the American [[Kinner B-5]] 5-cylinder radial of similar size, the M-11 had individual [[camshaft]]s for each cylinder, operating the [[pushrod]]s, rather than a single central cam ring. The initial versions of the M-11 suffered from a short [[Time between overhaul|service life]] of only 50 hours. The basic M-11 engine had a power output of 100 hp (73 kW), the newer M-11D variant was higher at 125 hp (92 kW). The ultimate version, M-11FR, introduced in 1946, increased power output to 160 hp at 1,900 rpm on takeoff and 140 hp at cruise and had provisions for a variable-pitch [[Propeller (aircraft)|propeller]], accessory drive (for [[vacuum pump]]s, [[Gas compressor|compressors]], [[electrical generator|generators]], etc.) and featured a floatless [[carburetor]].
 ==Applications==

v t e Aviadvigatel, Soloviev and Shvetsov aero engines
Gas turbines	D-20 D-21 D-25 D-30 PD-14 PS-12 PS-30 PS-90 PD-18R PD-30
Radial engines	ASh-2 ASh-21 ASh-62 ASh-73 ASh-82 M-11 M-22 M-25 M-63 M-64 M-70 M-71 M-72 M-80 M-81

v t e Aviation lists
General	Aircraft manufacturers civil Aircraft engines manufacturers Flight test centres‎ Test pilot schools Airlines Defunct airlines Helicopter airlines Airports Aerobatic teams Civil Aviation Authorities Gliders Museums Registration prefixes Jet airliners Rotorcraft manufacturers Timeline
Military	Air forces Experimental Missiles UAVs Weapons
Accidents / incidents	Commercial airliners by location Fatalities by death toll General aviation Military By registration
Records	Airspeed Altitude Distance Endurance Firsts Large Most-produced aircraft Most-produced rotorcraft