Aeromarine K-6

The Aeromarine K-6 is an aircraft engine built by the Aeromarine Plane and Motor Company in 1915. It is an Aeromarine 90hp with a .571 reduction gear. The addition of the reduction gear allowed the engine to produce more power by operating at a higher RPM. This engine made its peak power of 100 hp at 2000 rpm^[1][2][3]

K-6
Aeromarine K-6
Type	Piston aero engine
National origin	United States
Manufacturer	Aeromarine
First run	1915
Developed from	Aeromarine 90hp

Specifications

Data from Airplane Engine Encyclopedia^[2]

General characteristics

• Type: 6 cylinder vertical inline piston engine
• Bore: 4.3125 in (109.54 mm)
• Stroke: 5.125 in (130.18 mm)
• Displacement: 449.16 cu in (7.36 L)
• Dry weight: 435 lb (197 kg)

Components

• Valvetrain: Concentric overhead valve
• Fuel system: 2 Zenith carburetors
• Fuel type: gasoline
• Cooling system: Water
• Reduction gear: .571:1

Performance

• Power output: 100 hp (75 kW) nominal at 2,000 rpm
• Specific fuel consumption: 0.63 lb/(hp⋅h) (0.38 kg/kWh)
• Oil consumption: 0.063 lb/(hp⋅h) (0.038 kg/kWh)
• Power-to-weight ratio: 0.23 hp/lb (0.38 kW/kg)