The term 'Plane Section' refers to the different parts of an airplane. The NOSE is the front part of the plane, and is typically four letters long. The COACH section is the main area of the plane, usually with the most seating, and is five letters long. The TAIL is the back part of the plane, and is also four letters long. Finally, the firstclass section is the area of the plane with the most luxurious seating, and is ten letters long.