Gordon_R
Honorary Master
I don't usually recommend random videos that pop up in my YT feed, but this one makes a few interesting points. After a general discussion about 'bad' pilots, he gets to the point:
1. All commercial aircraft are certified to eventually stabilise in flight if the controls are released (called a phugoid cycle), as long as nobody is pushing the controls downward. This is true regardless of whether the 'plumber' pulls back on the controls or not.
1. All commercial aircraft are certified to eventually stabilise in flight if the controls are released (called a phugoid cycle), as long as nobody is pushing the controls downward. This is true regardless of whether the 'plumber' pulls back on the controls or not.
2. The ADSB data are consistent with both engines being switched off, and remaining off for about 5 minutes, before being restarted by the relief pilots. Ironically this probably saved the aircraft from structural breakup, since only gravity was causing the dive, not engine power.a slow, long-period flight oscillation where an aircraft rhythmically trades altitude for airspeed while keeping a nearly constant angle of attack.