the stall warner was going - but how close to the stall were you actually required to get to complete your test flight profile?
FFF,
Yes, the stall warning was sounding during this element of my flight. it had started at 75 MPH IAS. I observed 73 MPH IAS while maintaining control with the left engine feathered, and right at MCP (flaps and gear up). With some reduction to the right power to maintain straight flight, I was able to fly as slowly as 67 MPH IAS, at which point pitch control could not be maintained. The first indication of the inability to control pitch, is my indication of a stall. In this case, the Navajo gently dropped the nose, but did not change attitude in roll or yaw.
I am not saying that some aircraft may not display alarming tendancies in this configuration, this aircraft did not. I was flying by myself, in the best possible conditions, with lots of altitude, no rush, and no pressure [to go around, or otherwise deal with an emergency].
This flying was accomplished in accordance with a Transport Canada approved flight test program, with many safety measures in effect. Pilots should not be "experimenting" in this phase of flight.