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Alfa Romeo 135

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This page is a soft redirect.Alfa Romeo 135 #REDIRECTmw:Help:Magic words#Other
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Alfa Romeo 135
Type

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This page is a soft redirect. 18-cylinder radial engine #REDIRECTmw:Help:Magic words#Other
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Manufacturer

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This page is a soft redirect. Alfa Romeo #REDIRECTmw:Help:Magic words#Other
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First run

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This page is a soft redirect. 1938 #REDIRECTmw:Help:Magic words#Other
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Number built

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The Alfa Romeo 135 Tornado was an Italian 18-cylinder radial engine designed by Giustino Cattaneo in 1934-35.[1]

Design and development

The Alfa 135 consists of two nine-cylinder radial rows, back to back, operating a two-throw crankshaft. Cattaneo left Alfa Romeo in 1936, leaving the development of the 135 to eng. Bossi and his staff, but without success. At the time of its first running in 1938 and 1939 it was the most powerful radial engine in the world, generating just less than Script error: No such module "convert". on 100 octane fuel, but the standard fuel available was 87 octane, with which the 135 developed Script error: No such module "convert"..

Despite the obvious potential, this engine was affected by many reliability problems, but though mechanical defects were addressed during testing, it suffered from overheating and vibrations so seriously that it was rejected from service. Up to 1944 approximately 150 were made, none of which were fitted in operational aircraft.

Further development resulted in the Alfa Romeo 136, but this remain a paper project before the Armistice in September 1943 intervened.

Applications

Variants

135 R.C.32
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135 R.C.34
Script error: No such module "convert".
135 R.C.45
136 R.C.25
Experimental derivative of the 135, probably not built, Script error: No such module "convert". at sea level, Script error: No such module "convert". at Script error: No such module "convert".[4]
136 R.C.65
Experimental derivative of the 135, probably not built, Script error: No such module "convert". for Take Off, Script error: No such module "convert". at Script error: No such module "convert".[4]

Specifications (135 R.C.32)

Data from Aircraft Engines of the World 1945[5]</li> Archivio Storico Alfa Romeo - Volume II[4]

General characteristics

  • Type: 18-cylinder air-cooled radial engine
  • Bore: Script error: No such module "convert".
  • Stroke: Script error: No such module "convert".
  • Displacement: Script error: No such module "convert".
  • Length: Script error: No such module "convert".
  • Diameter: Script error: No such module "convert".
  • Dry weight: Script error: No such module "convert".
  • Designer: Cattaneo
  • Frontal Area: Script error: No such module "convert".

Components

  • Valvetrain: 2x inlet valves and 2x exhaust va lves per cylinder operated by pushrods and rockers
  • Supercharger: Gear-driven, 9.26:1 ratio, supercharger
  • Fuel system: 1x Zenith-Stromberg NA-Z160RGSL updraught carburettor with automatic mixture and boost control
  • Fuel type: 87 octane
  • Oil system: Script error: No such module "convert"., dry sump.</li>
  • Oil grade (viscosity): 20.5 cs (100 S.U. secs)</li>
    • Oil consumption: 0.009 kg/kW/hr (0.015 lb/hp/hr)
  • Cooling system: Air-cooled
  • Reduction gear: Epicyclic bevel reduction gear, 0.5:1 ratio.
  • Starter: Garelli compressed air starter</li>
  • Ignition: 2x Marelli MF18 magnetoes, 2x Script error: No such module "convert". long reach spark plugs per cylinder, fed by a shielded harness.

Performance

  • Power output: </li>
  • Take-off (135 R.C.32): Script error: No such module "convert". at 2,400 rpm</li>
  • Military(135 R.C.32): Script error: No such module "convert". at 2,400 rpm at Script error: No such module "convert".</li>
  • Cruising (135 R.C.32): Script error: No such module "convert". at 1,900 rpm at Script error: No such module "convert".
  • Take-off (135 R.C.34): Script error: No such module "convert". at 2,400 rpm</li>
  • Military(135 R.C.34): Script error: No such module "convert". at 2,400 rpm at Script error: No such module "convert".</li>
  • Take-off (136 R.C.34): Script error: No such module "convert".</li>
  • Military (136 R.C.34): Script error: No such module "convert". at Script error: No such module "convert".</li>
  • Take-off (136 R.C.65): Script error: No such module "convert".</li>
  • Military (136 R.C.65): Script error: No such module "convert". at Script error: No such module "convert".</li>
  • Specific power: 25.03 kW/l (0.55 hp/cuin)
  • Compression ratio: 6.6:1
  • Specific fuel consumption: 0.304 kg/kW/hr (0.5 lb/hp/hr) (take-off)
  • Oil consumption: 0.009 kg/kW/hr (0.015 lb/hp/hr)
  • Power-to-weight ratio: 0.727 kW/kg (0.775 hp/lb)

See also

Related lists

References

  1. ^ "STORY OF THE ALFA ROMEO FACTORY AND PLANTS page 10" (PDF). enzociliberto.it. Archived from the original (PDF) on 2007-09-29. Retrieved 2007-08-29. 
  2. ^ "CANT Z 1018 "Leone"". comandosupremo.com. Archived from the original on 24 August 2007. Retrieved 2007-08-27. 
  3. ^ "Alfa Romeo AEREI Collezione Modelli di Marco Rigoni Settembre 2005" (PDF). aerei-italiani.net. Retrieved 2008-06-15. 
  4. ^ a b c Archivio Storico Alfa Romeo - Volume II. Torino, November 1998
  5. ^ Wilkinson, Paul H. (1945). Aircraft engines of the World 1945 (2nd ed.). New York: Paul H. Wilkinson. pp. 288–289.