There are few jobs the US military that are cooler than flying in the stratosphere. If you spent most of your life as a U2 Pilot, it becomes what defines you. The Gordon family spent their life as a U2 Pilot and a military wife. So the creating of the U2 plane raised on the stone so that it casts a shadow over an arched horizon became clear. The set back wings with opposing arches to the horizon and the shell rock texture were created to give it some rustic feel.