On 29 Oct 2004 04:48:39 -0700, (sidk) wrote:

Downdraft cooling is prone to problems at low airflow velocities
because of the tendency of heated air to rise. Low airflow velocities tend
to coincide, unfortunately, with situations that need the best possible
cooling, namely climbs (high power, low airspeed).

Yes, and the increased AOA during these conditions probably make the
situation even worse.

Sid

This is where exhaust augmentation would improve things, if properly
done. Unfortunately, with a rear mounted engine, exhaust augmentation
is nearly impossible, simply not enough room.

Normally, exhaust augmentation has it's greatest effect exactly when
the engine needs it most: during takeoff and climb when airspeed is
low and power is high.

Corky Scott