Posted for "George Braly" <gwbraly@gami.com>:

Rob,

Ok... I'm not trying to be difficult. I am trying to interject a bit of
reality into the "Joy of Diesel".

You really didn't answer my question about the size of the intercooler
for the SMA 230 Hp diesel intercooler.

So let me go ahead and give you a "reality check" on that issue.

The air to air heat exchanger is about the size of a standard mid sized
car radiator. A little thicker and not quite as wide and high. But if
you think of a car radiator executed in aluminum - - then you will get
the picture.

It is a monster. I can't imagine the drag that is associated with that
thing. Along with the cooling drag for the air cooled diesel cylinder
heads on the SMA - - and the oil cooler drag.

Why is it THAT big ? Because they need to get a LOT of cooling done
for the diesel at altitude where the boost pressure ratio is rather
extreme and the temperature rise is likely in the 400 d F range (yes,
induction temperatures up in that range - - before the intercooler.)

Regards, George