“Avoid the world, it’s just a lot of dust and drag and means nothing in the end.” Jack Kerouac. In my opinion Jack Kerouac outlook of the world is quite bleak. Yet, this is an adequate description for what I have in mine. We do try to leave the dust and drag of the world behind us every time we fly, but there’s something we are taking with us – Drag. Yes that’s right the spirals of air that are our vortices which are trailing off the wingtips of our craft are contributing to drag. These wing tip vortices are stealing the energy from the movements of the airplane creating vortex drag….