4-cylinder, air-cooled, horizontally opposed engine
Unit cost $1010 for the GA.70/O, $1340 for the GA.70/V in 1958
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. Agusta GA.70 [2 ]
Variants [ edit ]
Horizontal mounting for light aircraft.
Vertical mounting for helicopters.
Specifications (G.A.70) [ edit ]
Data from Jane's All the World's Aircraft 1962-63 [3 ]
Type: 4-cylinder air-cooled horizontally opposed aircraft piston engine, (G.A.70/V - vertically mounted helicopter engine)
Bore: 92 mm (3.62 in)
Stroke: 86.5 mm (3.41 in)
Displacement: 2.300 l (140.35 cu in)
Length: 760 mm (29.92 in), (G.A.70/V - 470 mm (18.50 in))
Width: 750 mm (29.53 in), (G.A.70/V - 540 mm (21.26 in))
Height: 450 mm (17.72 in), (G.A.70/V - 470 mm (18.50 in))
Dry weight: 80 kg (176 lb) dry
Designer: M. Ginnini
pushrod operated overhead valve, 2x inlet + 2x exhaust per cylinder Valvetrain:
Fuel system: Stromberg NAS 3 carburettor
Fuel type: 80/87 octane
Oil system: Pressure lubrication with a gear driven pump
Cooling system: Air-cooled
Power output: 53.69 kW (72 hp) at 3,100rpm, (G.A.70/V - 61.15 kW (82 hp) at 3,300rpm)
23.352 kW/l (0.513 hp/cuin), (G.A.70/V - 26.6 kW/l (0.584 hp/cuin)) Specific power:
0.671 kW/kg (0.408 hp/lb), (G.A.70/V - 0.765 kW/kg (0.465 hp/lb)) Power-to-weight ratio:
Applications [ edit ]
^ Sport Aviation. July 1958.
^ Flight. July 1957.
^ Taylor, John W.R. FRHistS. ARAeS (1962). Jane's All the World's Aircraft 1962-63. London: Sampson, Low, Marston & Co Ltd.
References [ edit ]