sf2 - IF, and that is a very big 'IF', it is insisted that an automatic system should fly pitch and power in that situation, then a database of settings for weights and atmospheric conditions etc is easily do-able, and a 'take-me down' button easy to install in the system. Why bother? Back to pilot training. We can also do that. We SHOULD be trained to do it (some are). It should be instinctive - revised every time we level off in the cruise. Why add yet another system with potential software f-u's and failure modes? Ah! Good! More ECAM actions.
Regarding an 'inertial airspeed reading' - be very careful - How would the system interpret a change in wind component of 10 kts in a storm area? Greater than the margin between stall and overspeed sometimes! Deceleration/acceleration away from 'datum', yes, but now - was that a speed change or a wind change? How will Hal know?
Originally Posted by sirgaw
at max cruise speed?
no. Did you mean min? (With 10 up you could probably loop it
)