Slight thread creep but Tintagel was my first trip in a Helecopter as crash guard, 2 weeks out of training. I remember it well. Shocking scenes. Tried to get the WPC on duty to go out for a drink with me. An opportunist pull that failed.
Back on thread.. Odd things vibrations. I lived in quarters at Machrihanish, and one evening the house began to vibrate, I honestly thought it was an earthquake, but it turned out to be a Sea Stallion overhead at quite some altitude.