Date:         Mon, 15 Jul 2002 11:39:03 -0700
Reply-To:     pensioner <al_knoll@PACBELL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         pensioner <al_knoll@PACBELL.NET>
Subject:      Windage, Ullage and so on
In-Reply-To:  <200207151406.g6FE6Rde080484@pop2-ext.prodigy.net>
Content-type: text/plain; charset=iso-8859-1

Ever notice in a crosswind how you have to steer into the wind a bit to stay
on the straight and narrow.  A windage tray is used to store the windage
that you accumulate from this manuever so you can use it when the wind is
from the other direction and thus avoid this countersteering.  Check the
recent thread on electrolysis for parallel thinking.

An ullage baffle is even more baffling.  It helps to keep the crankycase
contents from sloshing about more than is necessary.  Or during those 2.0G
chicanes, it keeps oil near the pump scavenging apparatus so the pump has
oil to send to the oil pressure sender and beyond...

Advanced baffling can reduce the frothing-at-the-mouth characteristics of
oil starvation and provide additional horsepower formerly dissipated as heat
through the thrashing of the various mechanicals by keeping most of the oil
in the sump bottom.

Check the archives for "ullage".

p