Aha! As we say in the aircraft industry (or used to, when we had one)...
'add lightness and simplify'

I do like 'ullage', sounds very nautical, and maybe Scandinavian too.

cloive harman-symthesquith esq. (Rev on high)

----- Original Message -----
From: "pensioner" <al_knoll@PACBELL.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, July 15, 2002 7:39 PM
Subject: Windage, Ullage and so on

> 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