The Shvetsov ASh-73 was an 18-cylinder, air-cooled, radial aircraft engine produced between 1947 and 1957 in the Soviet Union. It was primarily used as the powerplant for the Tupolev Tu-4 heavy bomber, a copy of the American Boeing B-29 Superfortress.
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| - The Shvetsov ASh-73 was an 18-cylinder, air-cooled, radial aircraft engine produced between 1947 and 1957 in the Soviet Union. It was primarily used as the powerplant for the Tupolev Tu-4 heavy bomber, a copy of the American Boeing B-29 Superfortress.
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| Length
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| valvetrain
| - Pushrod, two valves per cylinder with sodium-cooled exhaust valve.
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| diameter
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| Power
| - *With direct fuel injection:
*2,720 hp at 2,600 RPM for take-off
*2,360 hp at 2,400 RPM maximum continuous
*With Carburettors and 92/93 octane fuel:
*2,400 hp at 2,600 RPM for take-off , boost rated at 1.5 Atm.
*2,200 hp at 2,400 RPM at critical altitude of 28,543 ft
*2,000 hp at 2,400 RPM at 30,512 ft
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| Displacement
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| Type
| - 18(xsd:integer)
- Radial engine
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| first run
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| stroke
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| major applications
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| supercharger
| - Two-stage supercharging system with intercooler. First stage consisted of two TK-19 exhaust-driven turbochargers operating in parallel . Second stage consisted of a PTsN single-speed engine-driven centrifugal blower . Boost was limited to 1.5 Atm with low octane fuel.
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| Manufacturer
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| coolingsystem
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| National Origin
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| fuelsystem
| - Carburettors with automatic mixture control .
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| compression
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| reduction gear
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| ref
| - Gordon and Rigmant, Tupolev Tu-4: Soviet Superfortress
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| abstract
| - The Shvetsov ASh-73 was an 18-cylinder, air-cooled, radial aircraft engine produced between 1947 and 1957 in the Soviet Union. It was primarily used as the powerplant for the Tupolev Tu-4 heavy bomber, a copy of the American Boeing B-29 Superfortress.
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