Here's one of them Lou, still in the drawing works though... like the other two.
http://www.modell-baustelle.de/index...&threadID=5983
I found out what the 3rd hole was for - some oil gets under the gears & will travel down the drive shaft with the pressure it creates within the chamber, which is where that hole go to.
Yeah Nathan, Frank seems to be really cranking out the new models lately, about one a year... who knows.