But there remains a set of disposable maps that cover the world, which are sometimes called progress charts. As a child I saw carbon copies of these mounted in the passenger cabin of the aircraft—the path of the plane, a charcoal-gray zigzag over blue sea and yellow land. I still have one or two that I asked the cabin crew for on those long-ago flights. These charts have space for the date and flight number, and for the pilots to write their names and ranks. Completing a progress chart, I feel as if in another age I would be crouched over a table, in heaving seas, an oil lamp or heavy brass
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There are scratch paper charts of flight path used during flights still. Kids can go up to cockpit to ask for them, pilots often open to handing them over
