Without Warning
The Deadliest Commercial Helicopter Crash in History
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The largest passenger helicopter in the world worked a shuttle run over the North Sea, carrying 44 men at a time.
On November 6, 1986, one of them came apart in clear air two and a half miles from the runway at Sumburgh, in Shetland, in sight of land. Forty-five men died.
No civil airline helicopter accident anywhere in the world has ever killed more people.
A Boeing Vertol 234 carries a…