Aeromarine B-45

B-45
	Aeromarine B-45
Type	V-8 piston engine
National origin	United States
Manufacturer	Aeromarine
First run	1915
Variants	Aeromarine B-90

The Aeromarine B-45 is an aircraft engine built by the Aeromarine Plane and Motor Company in 1915. The B-45 shares the same bore, stroke and valve configuration as the B-90, except in a 45° Vee configuration. The other primary difference are cast aluminum cylinders in place of the B-90's cast iron resulting in a 40 lb (18 kg) weight savings.^[1]^[2]^[3]

Specifications

Data from Airplane Engine Encyclopedia^[3]

General characteristics

Type: 8-cylinder 45° Vee piston engine
Bore: 3.625 in (92.08 mm)
Stroke: 5.125 in (130.18 mm)
Displacement: 423.2 cu in (6.94 L)
Length: 42.875 in (1,089.02 mm)
Width: 22.375 in (568.32 mm)
Height: 36.875 in (936.62 mm)
Dry weight: 420 lb (190 kg)
Designer: Joseph Boland

Components

Valvetrain: 2 intake and 2 exhaust valves per cylinder, DOHC
Fuel system: Single 1.75 in. duplex Zenith carburetor
Fuel type: gasoline
Cooling system: Water
Reduction gear: .571:1
Ignition: 2 Dixie 800 magnetos

Performance

Power output: 170 hp (130 kW) nominal at 2,635 rpm
Compression ratio: 5 to 1
Power-to-weight ratio: 0.40 hp/lb (0.66 kW/kg)

References

^ "Motors". www.aerofiles.com. Retrieved 2018-03-23.
^ Faurote, Fay Leone (1919). Aircraft Year Book. American Aviation Publications.
^ ^a ^b Angle, Glenn D. (1921). Airplane Engine Encyclopedia. Dayton, Ohio: THE OTTERBEIN PRESS. pp. 24–25.

[1] "Motors". www.aerofiles.com. Retrieved 2018-03-23.

[2] Faurote, Fay Leone (1919). Aircraft Year Book. American Aviation Publications.

[Angle-3] Angle, Glenn D. (1921). Airplane Engine Encyclopedia. Dayton, Ohio: THE OTTERBEIN PRESS. pp. 24–25.

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