There’s no doubt that landing a giant aircraft in fog is not among a pilot’s favourite things. Fortunately, many airports in the second decade of the 21st century are equipped with advanced instrument landing systems (ILS) sophisticated enough to avoid cancelling operations merely because of foggy conditions. Pioneered as early as 1929, today’s ILS equipment allows an aircraft crew to perform a runway approach in low-visibility conditions – even in nearly zero-visibility if necessary – by keeping it... keep reading