Paul,  Do you agree,  the determining factor for the depth of the oil
pan is the height of the thrust line above the bottom corner hard
points?   Perhaps there is no  need to draw it out every time
checking clearance.  We could just make a little chart.

If one wanted more oil capacity, and had room, he could raise the
engine one  or two inches.

The engine of the Tailwind was raised one inch above design thrust
with the nose gear modification and did not seem to change flying
characteristics.  Nor were there any particular problems in fitting
the cowl.

Jerry

Yes that is the main factor.