By Plane & Pilot If there was one word to describe today’s video snapshot by Art Eichmann, it would be “mood.” From vintage biplanes (and one very rare bird), to acrobats painting the skies and beyond, we cover KOSH from the North 40 to the Ultralight Strip in this short but spectacular look at Day Four at the best airshow in the world! Thanks for reading Plane & Pilot. Sign up for our newsletter for all the aviation news and tips you need.