| A.20 | |
|---|---|
| |
| Type | Water-cooled V12 engine |
| National origin | Italy |
| Manufacturer | FIAT |
| Major applications | Fiat CR.20 Macchi M.41 |
The Fiat A.20 was an Italian aero-engine of the 1920s. It was a water-cooled V12 engine that was used by early versions of the Fiat CR.20 fighter and the Macchi M.41 seaplane.
In 1923, FIAT built the A.15, a 430 hp (320 kW) water-cooled V12 engine. While no production of the A.15 ensued, it formed the basis for the Fiat A.20, which differed in being a Monobloc engine, and delivered a similar power despite a reduction in capacity from 20.3 to 18.7 L (1,239 to 1,141 in3).[1]
Variants
- A.20
- Normal compression (5.7:1 compression)[2]
- A.20 S.
- High compression version (6:1 compression)[2]
- A.20 AQ.
- (AQ - Alta Quota - high altitude) High altitude version (8:1 compression)[2]
Applications
- Ansaldo AC.4
- CANT 15
- CANT 25
- Fiat CR.20[3]
- Macchi M.41[4]
- Macchi M.71
- Piaggio P.6
- SIAI S.58bis
- SIAI S.67
Specifications (A.20)
Data from The Fiat A.20,[5]Jane's all the World's Aircraft 1928.[2]
General characteristics
- Type: Water-cooled 60° V-12
- Bore: 115 mm (4.53 in)
- Stroke: 150 mm (5.91 in)
- Displacement: 18.7 L (1,141 in3)[6]
- Length: 1,645 mm (64.76 in)
- Width: 645 mm (25.39 in)
- Height: 845 mm (33.27 in)
- Dry weight: 340 kg (749.6 lb)
Components
- Valvetrain: Overhead camshafts operating two inlet and two exhaust valves per cylinder via rockers
- Fuel system: Two twin carburettors
- Cooling system: water-cooled
Performance
- Power output: **A.20 460 hp (343.0 kW) at 2,300 rpm
- A.20S 510 hp (380.3 kW) at 2,400 rpm
- A.20AQ 430 hp (320.7 kW) at 2,060 rpm maximum continuous; 540 hp (402.7 kW) at 2,400 rpm maximum momentary output
- Compression ratio: **A.20 5.7:1
- A.20S 6:1
- A.20AQ 8:1
- Specific fuel consumption: 0.528 lb/(hp⋅h) (0.321 kg/kWh)
See also
Related lists
References
- ^ Gunston, Bill (2006). World Encyclopaedia of Aero Engines (5th ed.). Stroud: Sutton Publishing. pp. 72–74. ISBN 978-0-7509-4479-3.
- ^ a b c d Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 45d-46d.
- ^ Taylor, Michael J.H. (1981). Warplanes : of the world 1918–1939. London: Ian Allan. p. 54. ISBN 0-7110-1078-1.
- ^ Angelucci, Enzo, ed. (1981). World encyclopedia of military aircraft. London: Jane's. p. 124. ISBN 0-7106-0148-4.
- ^ Flight 6 May 1926, p.275.
- ^ Flight 9 December 1926, p.807.
External links
Wikimedia Commons has media related to Fiat A.20.
- "The Fiat A.20". Flight, 6 May 1926. p. 275.
- "The Fiat Engines". Flight, 9 December 1926, p. 807.
This page was last edited on 14 June 2023, at 04:50