Re: Fourth landing gear on MD aircraft ?

From: (Das Pork)
Organization: America Online, Inc. (1-800-827-6364)
Date:         12 May 95 03:22:45 
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  or MIME structure

A side note, the winglets look like up only but actually have small down
winglets also (they're tough to see next to the big ones and at a

The center gear started on the later series DC-10's and was added due to
the tendency to develop keel beam cracks due to the weight in the center
of the fuselage between the widely spaced main gear.

Das Pork