C Series Info
11-14-2017, 12:32 PM
#1631
Gets Weekends Off
Joined APC: Mar 2015
Position: stake holder ir.delta.com
Posts: 10,464
I'm a terrible pilot because I loose altitude in stall recovery. 
11-14-2017, 01:00 PM
#1632
Da Hudge
Joined APC: Oct 2006
Position: Poodle Whisperer
Posts: 17,473
2 people I know, and many other friends of friends are dead as a direct result. (Pinnacle 3701 and Colgan 3407)
11-14-2017, 01:58 PM
#1633
Gets Weekends Off
Joined APC: May 2015
Position: Power top
Posts: 2,960
11-14-2017, 03:43 PM
#1635
Da Hudge
Joined APC: Oct 2006
Position: Poodle Whisperer
Posts: 17,473
No doubt about that... My point with that was they wouldn’t have lost both engines had they not pulled back in the shaker, though.
11-14-2017, 05:04 PM
#1636
Gets Weekends Off
Joined APC: Jan 2015
Posts: 272
Speed below 60 to 90 Kts (depending on the aircraft pitch attitude)
Apparently, there could be more than just getting the speed below 60 kts to activate Abn. law.
11-14-2017, 05:37 PM
#1637
Gets Weekends Off
Joined APC: Jan 2015
Posts: 272
All I can do is go by what they teach. From the manual:
At 5-10 knots above stall warning speed (depending on weight and slat/flap configuration), alternate pitch law changes to direct law; however, bank angle compensation is provided. A gentle nose down is introduced, which tends to keep the speed from slowing further. Automatic pitch trim is disabled. Since g-load demand is no longer active, the aircraft's natural aerodynamic stability will be exhibited.
At 5-10 knots above stall warning speed (depending on weight and slat/flap configuration), alternate pitch law changes to direct law; however, bank angle compensation is provided. A gentle nose down is introduced, which tends to keep the speed from slowing further. Automatic pitch trim is disabled. Since g-load demand is no longer active, the aircraft's natural aerodynamic stability will be exhibited.
Though I know that does happen in Direct Law when going below Alpha Prot. Speed: autopilot disconnects, auto pitch trim stops, spoilers retracts, max angle of bank is 45 deg. and sidestick control switch from load factor demand to direct elevator control. (not quite the same as direct law as mentioned by 80ktsclamp).
Makes me wonder if whovever re-wrote the manual mixed up both reconfiguration laws.
11-14-2017, 05:51 PM
#1638
Gets Weekends Off
Joined APC: May 2015
Position: Power top
Posts: 2,960
That's interesting. This is pretty much the definition of low speed stability in Alt. Law straight from the Airbus FCOM. except the "alternate law changes to direct law" part. There is no mention of that.
Though I know that does happen in Direct Law when going below Alpha Prot. Speed: autopilot disconnects, auto pitch trim stops, spoilers retracts, max angle of bank is 45 deg. and sidestick control switch from load factor demand to direct elevator control. (not quite the same as direct law as mentioned by 80ktsclamp).
Makes me wonder if whovever re-wrote the manual mixed up both reconfiguration laws.
Though I know that does happen in Direct Law when going below Alpha Prot. Speed: autopilot disconnects, auto pitch trim stops, spoilers retracts, max angle of bank is 45 deg. and sidestick control switch from load factor demand to direct elevator control. (not quite the same as direct law as mentioned by 80ktsclamp).
Makes me wonder if whovever re-wrote the manual mixed up both reconfiguration laws.
11-14-2017, 05:58 PM
#1639
Gets Weekends Off
Joined APC: Apr 2011
Position: retired 767(dl)
Posts: 5,745
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