adlerass, google - b-747 runway length - http://www.boeing.com/assets/pdf/commercial/airports/acaps/747_8.pdf
3.3.2 FAA/EASA TAKEOFF RUNWAY LENGTH REQUIREMENTS - STANDARD DAY + 27°F (STD + 15°C)
3.3.2 FAA/EASA TAKEOFF RUNWAY LENGTH REQUIREMENTS - STANDARD DAY + 27°F (STD + 15°C)