More stuff from V's for Victory.
I blew them up from the book to make them easier to read.

What they did not realize in those days was the first half of
a thick heat exchanger does 3/4 of the work and the last half
does only 1/4. This is because the cooling air warms up as it
passes through the heat exchanger. The rate of heat transfer is
proportional to the difference in temperature.

They did not understand modern wedge shaped diffusers either or they
would have used them :)


Paul Lamar