The aisles on airplanes are designed to accommodate the number of travelers who are 5’ 5’’ and weigh 12 pounds. However, they can be tight spaces for anyone who eats more than semi-annually. Airline aisles tend to be the width of an orange. In fact, many airplane cabins were designed using the same dimensions and layout as machines used to sort fruit. Business Class is modeled on the slots used for collecting medium-sized melons, while Coach seating has the same roominess as chutes used to collect individual grapes.