fuselage cross-section has a maximum outer diameter of , compared to for the A330/A340. The cabin's internal width is at armrest level compared to in the Boeing 787 and in the Boeing 777. It allows for an eight-abreast 2–4–2 arrangement in a premium economy layout, with the seats being wide between wide arm rests. Airbus states that the seat will be wider than a 787 seat in the equivalent configuration. In the nine-abreast, 3–3–3 standard economy layout, the A350 seat will be wide, wider than a seat in the equivalent layout in the 787, and wider than a seat in the equivalent A330 layout. The current 777 and future derivatives have greater seat width than the A350 in a nine-abreast configuration. The 10-abreast seating on the A350 is similar to a 9-abreast configuration on the A330, with a seat width of . Overall, the A350 gives passengers more headroom, larger overhead storage space, and wider panoramic windows than current Airbus models. The A350 nose section has a configuration derived from the A380 with a forward-mounted nosegear bay and a six-panel flightdeck windscreen. This differs substantially from the four-window arrangement in the original design. The new nose, made of aluminium, improves aerodynamics and enables overhead crew rest areas to be installed further forward and eliminate any encroachment in the passenger cabin. The new windscreen has been revised to improve vision by reducing the width of the centre post. The upper shell radius of the nose section has been increased. Wing The A350 features new composite wings with a wingspan that is common to the proposed variants. Its wingspan stays within the same ICAO Aerodrome Reference Code E 65m limit as the A330/A340 and the Boeing 777. The A350's wing has a 31.9° sweep angle for a Mach 0.85 cruise speed and has a maximum operating speed of Mach 0.89. The -900 wing covers a area. This is between the wing of the current Boeing 777-200LR/300ER and the wing of the in-development Boeing 777X. However, Boeing and Airbus do not use the same measurement. The A350-1000 wing is () larger through a () extension to the inboard sections of the fixed trailing edge. A new trailing-edge high-lift device has been adopted with an advanced dropped-hinge flap similar to that of the A380, which permits the gap between the trailing edge and the flap to be closed with the spoiler. It is a