On Mon, 29 Mar 2004 00:38:49 +0200, "Jan Carlsson"
wrote:

The PHAA is english and means Positive High Angle of Attack.

PLAA is Positive Low angle of attack,

It is used in the flight envelope FAR part 23

PHAA is at VA and PLAA is at VD

Negative is inverted flight.

Thanks, Jan! Exactly what I was looking for.

Ron Wanttaja