Posted for Mark Steitle <msteitle@mail.utexas.edu>:

Al,
Is a blower
really necessary with that big fan up front?  I was thinking of a little
NACA
scoop to feed fresh air to the heater core.  (Trying to keep things
light).

Mark


Mark;

I'd say not if the NACA scoop is working properly.  My setup is made to
recirc cabin air.  Any fresh air still has to come in the vents.

I recall a NACA scoop on a Velocity that was somewhere back on the
fuselage under the wing for fresh air into the back seat.  Opening the
vent produced no air coming in.  Apparently improperly designed scoop,
or bad location; or both.

Al