Quotes from CONF_iture:
"It is not exactly clear why you guys need to introduce notions of "flare maneuver" ..."
Simply because it takes a force to change the trajectory of any vehicle - in this case the FPA. The vertical component of increased thrust alone is not sufficient - extra lift from the wing ** is required. Just for the moment, let's forget about any measures to avoid phugoid oscillations, or whatever. In the case that you are arguing, where the AoA is already at alpha-max, the only way to increase wing lift is to increase the speed. As I have previously reminded you, Valpha-max increases as the load factor (Nz) increases. To put it the other way round, increased speed at alpha-max generates an increase of Nz - which gives an increase of FPA.
In fact, even after the climb has been established, the wing lift requirement will be greater than in level flight, because its vertical component still has to balance the weight. So, at a steady AoA of alpha-max, Valpha-max has to be slightly higher in a climb than in level flight.
"Thrust controls the V/S"
In effect, that's correct, and for the PF to expect the PNF to do that for him would be impracticable.
"Thrust does not control the speed which stays at Valphamax"
For the reasons I have explained, at any given weight, Valpha-max is a variable speed.
** [EDIT]
However, see the reference to "TOTAL aerodynamic lift" in the fourth paragraph of Owain Glyndwr's post (below).
Last edited by Chris Scott; 19th Feb 2014 at 09:34.
Reason: ** added.