The R-670 (factory designation W-670) was a seven cylinder 4-cycle radial aircraft engine produced by Continental displacing 668 cubic inches and a dry weight of 465lbs. Continental Motors ( Teledyne Continental Motors) is an engine manufacturer located in Mobile Alabama. Horsepower varied from 210 to 240 at 2200 rpm. This engine was used on many airplanes in the 1930s and 1940s. The 1930s were described as an abrupt shift to more radical and conservative lifestyles as countries were struggling to find a solution to the Great Depression. The 1940s decade ran from 1940 to 1949 Events and trends The 1940s was a period between the radical 1930s and the conservative 1950s which also leads the period to be The R-670 was widely used in the PT-17 Stearman primary training aircraft of the U.S. military. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout A trainer is an Aircraft used to develop piloting navigational or war-fighting skills in flight crew The United States Armed Forces are the overall unified military forces of the United States

In addition to being used in aircraft the R-670 was used in a number of light armored vehicles of World War II. World War II, or the Second World War, (often abbreviated WWII) was a global military conflict which involved a majority of the world's nations, including

Specifications (R-670-K)

General characteristics

• Type: 7 cylinder air cooled radial
• Bore: 130mm (5. 125 in)
• Stroke: 117mm (4. 625 in)
• Displacement: 10,9liter (668 cu in)
• Length: 792mm (31. 187 in)
• Width: mm (in)
• Height: 1,079mm (42. 50 in)
• Dry weight: 208kg (460 lbs)

Components

• Valvetrain: 1 inlet and 1 exhaust valve per cylinder
• Fuel system: 1 Stromberg Carburetor
• Fuel type: 65 octane
• Cooling system: air

Performance

• Power output: 225hp @ 2,175 RPM
• Compression ratio: 5. The compression ratio is a single number that can be used to predict the performance of any engine particularly piston engines (but can be used on essentially any Internal-combustion 4:1
• Power-to-weight ratio: 2. Power-to-weight ratio (specific power is a calculation commonly applied to Engines and other mobile power sources to enable the comparison of one unit or design to another 04lb/hp @ cruise speed

Application

• American Airmotive NA-75
• Boeing Stearman
• CallAir Model A
• Cessna 195
• Fairchild PT-23
• G class blimp
• M1 Combat Car
• M2 Light Tank
• Timm N2T Tutor

References

• http://www.oldengine.org/members/diesel/Duxford/usaero1.htm

WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout The Call-Air Model A is an American two- to three-seat utility aircraft designed by the Call brothers and built by the Call Aircraft Company later developed into a successful WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout The Light Tank M2 was an American Pre - World War II light tank that saw use in early battles of the Pacific War.

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