Aircraft fuselage

An aircraft fuselage comprising:

• fore and aft sections of the aircraft fuselage, a barrier wall separating the fore and aft sections, the barrier wall defining an opening;
• a door moveable in a straight line across the barrier wall that aligns with a direction of movement of the door between an open position in which the door is offset from the opening and a closed position in which the door covers the opening;
• a seal assembly comprising a first member attached to the barrier wall and extending around a perimeter of the opening, and a second member attached to the door and configured to engage with the first member at respective seal surfaces to form a seal around the perimeter of the opening;
• and
• wherein at least a portion of the seal surfaces of the first and second members are angled at an oblique angle relative to a width of the seal surfaces, the width aligned with the direction of movement of the door.