A great-grandfather has flown a plane alone for the first time at the grand old age of 82 -- after starting flying lessons just a year ago. <br /><br />David Luke, 82, took to the skies on his own after just 18 hours of training at Strathaven Airfield in Lanarkshire. <br /><br />He had never flown a plane until he began training a year ago shortly after the death of his wife, Cathrine.
