But the Thunderbirds aren’t the only ones delivering innovation in the air. Elsewhere on the world wide web, you’ll find the home of Sky Typers – creators of unique ad billboards in the sky.

Skytyping involves five airplanes spraying biodegradable vapor puffs to create a marketing message - stretching 5 miles long, as tall as the Empire State Building and visible over 400 square miles.

Flying planes that type sounds exciting but pilots need to be careful. Sky Typing is expensive and spelling mistakes are costing and they haven’t yet invented a plane that does backspace…