This is an extract from the the link below from Dr David Clarke’s website, please visit this link for the full story (fascinating):
Air Commodore Mike Swiney OBE, had been flying for nine years when he left the airfield at Little Rissington on the training flight over southwest England. As the Meteor, with student Crofts at the controls, they punched through clouds at about 15,000 feet both men were amazed to see ‘three white…circular objects’ above them.
He remembered exclaiming ‘what on Earth is going on!’
Initially he thought they could be three descending parachutes and, fearful of tearing through their canvasses, Swiney took control of the aircraft from his student.
As both men watched in amazement, the three objects appeared to change position ‘and lost their circular shape and took on more of a “flat plate” appearance’: much like the classic ‘flying saucer‘ of pop culture.
For info, the Meteor pictured is flying today and owned by the Martin Baker ejection seat company.