Agusta GA.70: Difference between revisions
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|unit cost=$1010 for the GA.70/O, $1340 for the GA.70/V in 1958 <ref>{{cite journal|title=none| |
|unit cost=$1010 for the GA.70/O, $1340 for the GA.70/V in 1958 <ref>{{cite journal|title=none|journal=Sport Aviation|date=July 1958}}</ref> |
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The '''Agusta GA.70''' was a four-cylinder, air-cooled, horizontally opposed engine developed in Italy for light aircraft and helicopter use. The GA.70/V featured a bottom sump for vertical applications and was rated at {{convert|82|hp|kW|abbr=on|0|disp=flip}}. It was produced in the 1950s and 1960s.<ref>{{cite journal|title=none| |
The '''Agusta GA.70''' was a four-cylinder, air-cooled, horizontally opposed engine developed in Italy for light aircraft and helicopter use. The GA.70/V featured a bottom sump for vertical applications and was rated at {{convert|82|hp|kW|abbr=on|0|disp=flip}}. It was produced in the 1950s and 1960s.<ref>{{cite journal|title=none|journal=Flight|date=July 1957}}</ref> |
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==Variants== |
==Variants== |
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|bore={{convert|92|mm|in|abbr=on|1}} |
|bore={{convert|92|mm|in|abbr=on|1}} |
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|stroke={{convert|86.5|mm|in|abbr=on|1}} |
|stroke={{convert|86.5|mm|in|abbr=on|1}} |
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|displacement={{convert|2.3| |
|displacement={{convert|2.3|L|cuin|abbr=on|1}} |
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|length={{convert|760|mm|in|abbr=on|1}}, (G.A.70/V - {{convert|470|mm|in|abbr=on|1}}) |
|length={{convert|760|mm|in|abbr=on|1}}, (G.A.70/V - {{convert|470|mm|in|abbr=on|1}}) |
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|diameter= |
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|coolingsystem=Air-cooled |
|coolingsystem=Air-cooled |
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|power={{convert|72|hp|kW|abbr=on|0|disp=flip}} at 3,100rpm, (G.A.70/V - {{convert|82|hp|kW|abbr=on|0|disp=flip}} at 3,300rpm) |
|power={{convert|72|hp|kW|abbr=on|0|disp=flip}} at 3,100rpm, (G.A.70/V - {{convert|82|hp|kW|abbr=on|0|disp=flip}} at 3,300rpm) |
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|specpower=23.35 kW/ |
|specpower=23.35 kW/L (0.51 hp/cu in), (G.A.70/V - 26.6 kW/L (0.58 hp/cu in)) |
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|compression= |
|compression= |
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|fuelcon= |
|fuelcon= |
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Latest revision as of 11:05, 30 October 2024
| GA.70 | |
|---|---|
| |
| GA.70 on display at the Hubschraubermuseum Bückeburg | |
| Type | 4-cylinder, air-cooled, horizontally opposed engine |
| National origin | Italy |
| Manufacturer | Agusta |
| First run | 1955 |
The Agusta GA.70 was a four-cylinder, air-cooled, horizontally opposed engine developed in Italy for light aircraft and helicopter use. The GA.70/V featured a bottom sump for vertical applications and was rated at 61 kW (82 hp). It was produced in the 1950s and 1960s.[1]
Variants
[edit]- GA.70/0
- Horizontal mounting for light aircraft.
- GA.70/V
- Vertical mounting for helicopters.
Applications
[edit]Specifications (GA.70)
[edit]Data from Jane's All the World's Aircraft 1962-63.[2]
General characteristics
- Type: 4-cylinder air-cooled horizontally opposed aircraft piston engine, (G.A.70/V - vertically mounted helicopter engine)
- Bore: 92 mm (3.6 in)
- Stroke: 86.5 mm (3.4 in)
- Displacement: 2.3 L (140.4 cu in)
- Length: 760 mm (29.9 in), (G.A.70/V - 470 mm (18.5 in))
- Width: 750 mm (29.5 in), (G.A.70/V - 540 mm (21.3 in))
- Height: 450 mm (17.7 in), (G.A.70/V - 470 mm (18.5 in))
- Dry weight: 80 kg (176 lb) dry
- Designer: M. Ginnini
Components
- Valvetrain: pushrod operated overhead valve, 2 x inlet + 2 x exhaust valves per cylinder
- Fuel system: Stromberg NAS 3 carburettor
- Fuel type: 80/87 octane
- Oil system: Pressure lubrication with a gear driven pump
- Cooling system: Air-cooled
Performance
- Power output: 54 kW (72 hp) at 3,100rpm, (G.A.70/V - 61 kW (82 hp) at 3,300rpm)
- Specific power: 23.35 kW/L (0.51 hp/cu in), (G.A.70/V - 26.6 kW/L (0.58 hp/cu in))
- Power-to-weight ratio: 0.67 kW/kg (0.41 hp/lb), (G.A.70/V - 0.765 kW/kg (0.465 hp/lb))
Notes
[edit]- ^ Flight. July 1957.
{{cite journal}}: CS1 maint: untitled periodical (link) - ^ Taylor, John W.R. FRHistS. ARAeS (1962). Jane's All the World's Aircraft 1962-63. London: Sampson, Low, Marston & Co Ltd.
References
[edit]
Wikimedia Commons has media related to Agusta GA.70.
- Taylor, John W.R. FRHistS. ARAeS (1962). Jane's All the World's Aircraft 1962-63. London: Sampson, Low, Marston & Co Ltd.
- Erickson, Jack. Horizontally-Opposed Piston Aero Engines