Wonder how this affects the Loganair flights onto Barra beach, invariably wet.
Airborne corrosion crops up in all sorts of places round the world. Miami is strangely the worst in the USA for its combination of corrosive dust and humidity, which allows it to settle on exposed metal. The Miami Metro had to have its railway cars made from a special corrosion-proofed steel compared to other such operators in the USA, and if you've ever visited there you will see relatively mid-life cars on the road developing rust in all sorts of unlikely places like along the roofline. I wonder how this affects the large number of Miami-based operators.