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CF680C2D1F Exhaust Question  
User currently offlineMD11LuxuryLinr From United States of America, joined Jul 2003, 1385 posts, RR: 14
Posted (10 years 6 months 2 weeks 4 days 22 hours ago) and read 1525 times:

I've noticed that older versions of the CF6-80 have a smaller, stubby exhaust cone and the newer ones are much longer. Why did GE change them? Less drag? It can't make too much difference because I've seen MD11s with both types of cones..

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User currently offlineCdfmxtech From United States of America, joined Jul 2000, 1338 posts, RR: 27
Reply 1, posted (10 years 6 months 2 weeks 4 days 16 hours ago) and read 1497 times:

Most likely noise reduction. Those exhaust plugs are supposed to change the airflow to create a quieter exhaust

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