Welch O-2

{{Infobox Aircraft Begin

| name=O-2

| image=

| caption=

}}{{Infobox Aircraft Engine

|type=Horizontally Opposed Piston Engine

|manufacturer=Orin Welch Aircraft Company

|designer=Orin Moore Welch

|national origin=United States

|first run=1931

|major applications=Welch OW-7M

|produced=

|number built=7

|program cost=

|unit cost=

|developed from=

|variants with their own articles=

}}

The Welch O-2 is a light two-cylinder engine developed for the Welch OW-7M series of aircraft.{{cite journal|magazine=Skyways|date=July 1998|title=The Welch Monoplane|author=Jerry Bates}}

Specifications (O-2)

{{pistonspecs

|

|type=air-cooled 2-cylinder horizontally opposed aircraft piston engine

|bore=4.5 in

|stroke=4.25 in

|displacement=135 in³

|length=

|diameter=

|width=

|height=

|weight=115 lb

|valvetrain=

|supercharger=

|turbocharger=

|fuelsystem=

|fueltype=

|oilsystem=dry sump

|coolingsystem=Air-cooled

|power=41hp at 2,300 rpm

|specpower=

|compression=5.2:1

|fuelcon=

|specfuelcon=

|oilcon=

|power/weight=

}}

See also

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|see also=

|related=

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References

{{Reflist}}