And the days of the clipper ships will be recalled again — and people will wonder if clipper means ancients of the sea or ancients of the air. ‘Trust this,’ said Tom, ‘but nothing else.’ He meant the compass. ‘Instruments can go wrong,’ he said. ‘If you can’t fly without looking at your airspeed and your altimeter and your bank-and-turn indicator — well, then you can’t fly.
