Ground tests recently completed by Boeing and General Electric prove the engines intended for the 747-8 will meet noise reduction targets, the companies said yesterday. The test results validate that noise-reduction technologies will produce a 10-decibel noise reduction compared with the 747-400, Boeing said. This will also put it 10dB below ICAO Chapter 4 standards, and it will meet QC-2 standards for arrival and departure. There is also a "significant chance" the aircraft will meet ...

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