Originally Posted by
Centaurus
In fact I wouldn't be surprised in the two recent Boeing 737 MAXI accidents and the apparent inability for their crews to recover from unusual attitudes (nose down) could be traced in part to absence of knowledge on how to aerodynamically relieve airloads if using manual stabilizer trim.
Hi Centaurus,
From what I remember of the B707-320 over 40 years ago, the possible scenario of the HS refusing to move when under high aerodynamic load could apply to electric trimming (using the piccolo switches) as well as manual trimming (cranking the large trim wheels on each side of the centre pedestal). Is the B737 similar, and what about the dash-800 MAXI?
Trouble is that, when the a/c is already pointing downwards at a very low height, releasing the yoke to unload the elevators is not an option...