Re: Fourth landing gear on MD aircraft ?

From: (Richard Artus)
Organization: NotMuch
Date:         28 Sep 95 03:52:44 
References:   1 2
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> 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.

Rubbish, that center gear is for support of upper aft aux fuel tank on -30
and -40 series DC-10's and MD-11s.