SAMPUBLIUS, auraflyer and Gretchenfrage.
Your concerns about load protections on Airbus have been repeatedly raised ever since features of Airbus FBW have become known, about a year or two before first A320 entered service. They have being pointedly ignored by aeronautical powers that be ever since. There are at least two possible explanations for this:
1) there is a worldwide conspiracy started by Airbus and involving all of the aviation authorities that accept the Airbi to be of airworthy design (that means all of them!). This conspiracy is very stealthy, no one has ever managed to prove its existence yet it is so powerful it suppresses data on every incident where overstressing the aeroplane saved the day so perception is there was none and whistelblowers are sidelined to anonymous fora.
2) whoever proposes that 2.5G with 50% reserve is too low for transport category aeroplanes combined with FCS actively maintaining the limit has no clue about certification criteria, structural design of the transport category aeroplane or operations of them - provided they really believe what they write - and everybody who is somebody in aviation is right to ignore that contributions as their notions represent acts of spectacular ignorance. There really is not any accident where transport aeroplane could be realistically saved by being built stronger instead of not getting it her into mess in the first place.
Your pick.
Originally Posted by SAMPUBLIUS
IMO that is a logic flaw. I posted earlier about a China 747 in 1985 that had an engine failure, went into a major spiral dive, and was recovered- and still flew - but it was severly bent with estimated 5G loads during pullout. Wings were bent up permanently sever inches at tips, who knows how much during flight. Part of horiz stabilizer was torn away.. plane landed safely, and was repaired and put back into service. Structural limit load test the wings on a 747 go several feet above top of fuselage at 2.5 to 3 G equivalent ..
Transport category aeroplanes have to withstand 3.75 G at MTOW, clean, without damage or plastic deformation. For the time being, I'll leave it at this to solicit some entertaining responses.
Dynasty 6 accident happened near the end of cruise. They were lucky to be light yet with enough fuel in wings.
Loss of engine on FBW Airbi does not degrade control laws. Alpha protection would prevent the stall and bank protection would prevent the spiral dive.
Originally Posted by Gretchenfrage
Did you notice the absence of the usual Airbus lobby-suspects' trivial contributions on here?
Speaking of devil.