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Link to the forum post explaining how to execute the yo-yo manoeuvre, mentioned in the article. What is interesting was one pilot mentioned that the yo-yo proce

• pmyteh 7y ago
  A little pedantic, but: the 707 was one of the first jet airliners. Britain's de Havilland Comet beat it into service by six years, and the Soviet Union's Tupolev Tu-104 by two.
• dingaling 7y ago
  The 707 is interesting as the UK air Registration Board refused to certify it in its original form. It had insufficient rudder authority in the case of certain engine-out scenarios because Boeing hadn't implemented full rudder boost, and the pilots therefore couldn't overcome yaw. That had killed two crews in training. In order to save the big BOAC order Boeing had to fit full boost and a tail strake, which they quietly adopted for all subsequent 707s Then there was the 727 that had four fatal crashes within six months of entering service, which was put down to inadequate training. But it was later found that the high fatality rate was because Boeing had routed fuel lines along the belly, which severed in a hard landing and caused immediate fires. And they severed easily because bizarrely they were aluminium, in order to bring the weight within target...