er777Boeing 777-300ER Performance: Cruise speed: 482 knots 555 mph 893 kmh: Approach Speed: 240 knots 276 mph 444 kmh: Landing Speed: 149 knots 171 mph 276Strategic use of composites and advanced alloys. Advanced alloys saved 1,450 kilograms (3,200 pounds) of structural weht on the 777. Selected for mechanical properties and for their