Very interesting. Does the vertical pipe come from an air-oil
separator or directly from the breather fitting? Is all the oil that
drips on the exhaust pipe consumed there?  Or does it still go out onto
the belly?  And does all the oil coming out of the pipe actually go onto
the exhaust or does the airflow whip it about elsewhere?

Charles,

 

Gulp... It doesn't work in flight because the exit airflow just blows the oil from the breather into the air stream.  I have a friend with a Cozy that straps the breather tube to one exhaust pipe - It may be working but he still gets oil/exhaust stains on his prop.  Some people have welded a fitting onto an exhaust pipe that routes the breather effluence into the hot exhaust in hopes to burn the oil - they still have composite exhaust stains where ever the whims of nature carries them.

 

This is the only way!