NG737 performance

Date:         08 Jun 98 02:57:49 
From:         faurecm@halcyon.com (C. Marin Faure)
Organization: NorthWest Nexus Inc.
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I was told today by a friend in Boeing Flight Test that the winglets
fitted to the Boeing Business Jet, which is actually a New Generation
737-700, have reduced the airplane's fuel consumption by at least 3
percent so far at the speeds, altitudes, and attitudes at which they have
been tested, and even better performance is anticipated.  The performance
increase is significant enough that consideration is being given to
removing one of the BBJ's long-range fuel tanks which will, of course,
increase the payload.  At least one commercial carrier has ordered
winglets for their passenger NG737s.  The winglets can be added to any of
the NG737 Series, and are made of composite materials reinforced by a
metal structure.

So far, the operators of NG737s are very happy with them.  Cruise
performance in terms of speed and fuel consumption is proving to be better
than what Boeing predicted, and dispatch reliability rates are exceeding
99 percent.  According to my friend, the only persistent problem has been
the tendency for the bulbs in some of the flight deck indicator lights to
last only about 30 hours.  The problem is being worked on.

C. Marin Faure
  author, Flying A Floatplane