Lycoming R-680BA
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The Lycoming R-680 is a nine-cylinder air-cooled radial engine, the first aero engine produced by Lycoming. The engine was produced in two types, the E and B series; both are essentially the same. The B4E was available in a trainer version with a front exhaust collector "ring" for use without cylinder air baffles. R-680 received Approved Type Certificate No. 42 on 4 Feb 1930.


Variants

;R-680B4E :Rated at at 2100 rpm.Bridgman 1988 ;R-680BA :Rated at ;R-680E3A :Rated at at 2200 rpm. ;R-680-6 :Rated at ;R-680-13 :Rated at at 2200 rpm.


Applications

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Specifications (R-680-E3A)


See also


References


Notes


Bibliography

* {{US military piston aeroengines 1920s aircraft piston engines Aircraft air-cooled radial piston engines R-680