.Airport Terminal Range Chart.A calculator of kilometers between two airports in the United States helped make along with Vue, SVG, D3.js as well as GreenSock. A map of United States with dots on where airport terminals are located is actually utilized as a user interface to tug the pens around to calculate the proximity between 2 airports and present the proximity in kilometers.Airport Proximity Map.Get the span between pair of airport terminals "as the crow flies.A pen by @shshaw.