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__NOTOC__
{|{{Infobox Aircraft Begin
{|{{Infobox Aircraft Begin
| name=Agusta GA.70
| name= GA.70
| image=File:Hubschraubermuseum Bückeburg 2010 0986.JPG
| image=
| caption=GA.70 on display at the [[Hubschraubermuseum Bückeburg]]
| caption=
}}{{Infobox Aircraft Engine
}}{{Infobox Aircraft Engine
|type=4-cylinder, air-cooled, horizontally opposed engine
|type=4-cylinder, air-cooled, horizontally opposed engine
⚫
|manufacturer=[[Agusta]]
⚫
|designer=M. Ginnini
|national origin=[[Italy]]
|national origin=[[Italy]]
⚫
|manufacturer=[[Agusta]]
⚫
|designer=
|first run=1955
|first run=1955
|major applications=
|major applications=
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|number built=
|number built=
|program cost=
|program cost=
|unit cost=$1010 for the GA.70/O, $1340 for the GA.70/V in 1958 <ref>{{cite journal|title=none|magazine=Sport Aviation|date=July 1958}}</ref>
|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>
|developed from=
|developed from=
|variants with their own articles=
|variants with their own articles=
}}
}}
|}
|}

The '''[[Agusta]] GA.70''' was a 4-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 158hp. It was produced in the 1950s and 60s.<ref>{{cite journal|title=none|magazine=Flight|date=July 1957}}</ref>
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>


==Variants==
==Variants==
;G.A.70/0:Horizontal mounting for light aircraft.
;GA.70/0:Horizontal mounting for light aircraft.
;G.A.70/V:Vertical mounting for helicopters.
;GA.70/V:Vertical mounting for helicopters.

⚫
==Applications==
⚫
* [[Agusta A.103]]
⚫
* [[Bölkow Bo 103]]
⚫
* [[de Bernardi M.d.B. 02 Aeroscooter]]
⚫
* [[Phoenix Minor]]
⚫
* [[Phoenix Major]]


==Specifications (G.A.70)==
==Specifications (GA.70)==
{{pistonspecs
{{pistonspecs
|ref=Jane's All the World's Aircraft 1962-63<ref name=JAWA62-63>{{cite book|last=Taylor|first=John W.R. FRHistS. ARAeS|title=Jane's All the World's Aircraft 1962-63|year=1962|publisher=Sampson, Low, Marston & Co Ltd|location=London}}</ref>
|ref=''Jane's All the World's Aircraft 1962-63.''<ref name=JAWA62-63>{{cite book|last=Taylor|first=John W.R. FRHistS. ARAeS|title=Jane's All the World's Aircraft 1962-63|year=1962|publisher=Sampson, Low, Marston & Co Ltd|location=London}}</ref>
|type=4-cylinder air-cooled [[horizontally opposed]] aircraft piston engine, (G.A.70/V - vertically mounted helicopter engine)
|type=4-cylinder air-cooled [[horizontally opposed]] aircraft piston engine, (G.A.70/V - vertically mounted helicopter engine)
|bore={{convert|92|mm|in|abbr=on|2}}
|bore={{convert|92|mm|in|abbr=on|1}}
|stroke={{convert|86.5|mm|in|abbr=on|2}}
|stroke={{convert|86.5|mm|in|abbr=on|1}}
|displacement={{convert|2.300|l|cuin|abbr=on|2}}
|displacement={{convert|2.3|L|cuin|abbr=on|1}}
|length={{convert|760|mm|in|abbr=on|2}}, (G.A.70/V - {{convert|470|mm|in|abbr=on|2}})
|length={{convert|760|mm|in|abbr=on|1}}, (G.A.70/V - {{convert|470|mm|in|abbr=on|1}})
|diameter=
|diameter=
|width={{convert|750|mm|in|abbr=on|2}}, (G.A.70/V - {{convert|540|mm|in|abbr=on|2}})
|width={{convert|750|mm|in|abbr=on|1}}, (G.A.70/V - {{convert|540|mm|in|abbr=on|1}})
|height={{convert|450|mm|in|abbr=on|2}}, (G.A.70/V - {{convert|470|mm|in|abbr=on|2}})
|height={{convert|450|mm|in|abbr=on|1}}, (G.A.70/V - {{convert|470|mm|in|abbr=on|1}})
|weight={{convert|80|kg|lb|abbr=on|0}} dry
|weight={{convert|80|kg|lb|abbr=on|0}} dry
|valvetrain=pushrod operated overhead valve, 2x inlet + 2x exhaust per cylinder
|valvetrain=pushrod operated overhead valve, 2 x inlet + 2 x exhaust valves per cylinder
|supercharger=
|supercharger=
|turbocharger=
|turbocharger=
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|oilsystem=Pressure lubrication with a gear driven pump
|oilsystem=Pressure lubrication with a gear driven pump
|coolingsystem=Air-cooled
|coolingsystem=Air-cooled
|power={{convert|72|hp|kW|abbr=on|2|disp=flip}} at 3,100rpm, (G.A.70/V - {{convert|82|hp|kW|abbr=on|2|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)
|specpower=23.352 kW/l (0.513 hp/cuin), (G.A.70/V - 26.6 kW/l (0.584 hp/cuin))
|specpower=23.35 kW/L (0.51 hp/cu in), (G.A.70/V - 26.6 kW/L (0.58 hp/cu in))
|compression=
|compression=
|fuelcon=
|fuelcon=
|specfuelcon=
|specfuelcon=
|oilcon=
|oilcon=
|power/weight=0.671 kW/kg (0.408 hp/lb), (G.A.70/V - 0.765 kW/kg (0.465 hp/lb))
|power/weight=0.67 kW/kg (0.41 hp/lb), (G.A.70/V - 0.765 kW/kg (0.465 hp/lb))


|designer=[[M. Ginnini]]
|designer=[[M. Ginnini]]
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|performance_other=
|performance_other=
}}
}}

⚫
==Applications==
⚫
* [[Agusta A.103]]
⚫
* [[Bölkow Bo 103]]
⚫
* [[de Bernardi Aeroscooter]]
⚫
* [[Phoenix Minor]]
⚫
* [[Phoenix Major]]


==Notes==
==Notes==
{{Reflist}}
{{Reflist}}

==References==
==References==
{{Commons category}}
{{commonscat|Agusta}}
{{refbegin}}
{{refbegin}}
*{{cite book|last=Taylor|first=John W.R. FRHistS. ARAeS|title=Jane's All the World's Aircraft 1962-63|year=1962|publisher=Sampson, Low, Marston & Co Ltd|location=London}}
*{{cite book|last=Taylor|first=John W.R. FRHistS. ARAeS|title=Jane's All the World's Aircraft 1962-63|year=1962|publisher=Sampson, Low, Marston & Co Ltd|location=London}}
* Erickson, Jack. ''[http://home.comcast.net/~aeroengine/Agusta.html Horizontally-Opposed Piston Aero Engines]''
* Erickson, Jack. ''[https://web.archive.org/web/20091006084718/http://home.comcast.net/~aeroengine/Agusta.html Horizontally-Opposed Piston Aero Engines]''
{{refend}}
{{refend}}


{{AgustaWestland aircraft}}
{{AgustaWestland aircraft}}
{{Aviation lists}}


[[Category:Aircraft piston engines 1950–1959]]
[[Category:1950s aircraft piston engines]]
[[Category:Boxer engines]]
[[Category:Boxer engines]]
[[Category:Agusta aircraft engines]]
[[Category:Agusta aircraft engines]]

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]
  1. ^ Flight. July 1957.{{cite journal}}: CS1 maint: untitled periodical (link)
  2. ^ 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.
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