Boeing Unveils 777 Enhancements

Boeing revealed a series of product improvements to the 777-300ER, 777-200LR and the 777 Freighter that will see the aircraft shed 1,200lb

Boeing revealed a series of product improvements to the 777-300ER, 777-200LR and the 777 Freighter at the ISTAT Americas event, in Phoenix, Arizona.

Randy Tinseth, VP of marketing, revealed that alongside improving the aircraft’s aerodynamics, changes will see the aircraft shed 1,200lb through changes to the interior architecture, low-density hydraulic fluid, lightweight insulation and tail skid removal.

  1. The changes will be phased into production by Q3 2016 and Boeing says they will deliver a two per cent reduction on fuel costs per trip and a five per cent fuel cost saving per seat should all the optional features be applied.

The aircraft will also benefit from a combination of various GE90 engine improvements by GE.
In terms of aerodynamic improvements, a trailing edge device will be added to the underside of the wing, outboard of the aileron. This increases the camber of the outboard wing, resulting in outboard wing efficiency.
Elevator seals will be improved to reduce drag and the pitch trim software logic has been revised, reducing the profile and drag.
The slat trailing edge will be 60 per cent thinner, reducing drag, the inboard flap track fairing has been revised to optimise span-loading and reduce drag, and a new passenger window and seal design will also lower drag.
Additionally, an enhanced tail skid protection has been integrated into the fly-by-wire controls, eliminating the need for a physical tailskid on the 777-300ER.
Optional priced features include next-generation lightweight galleys, space-saving lavatories and straightened aft seat tracks.
Optional passenger experience upgrades include premium window shades, an LED lighting system, forward cabin noise improvements and an enhanced “Door 2” entry.

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