differents in DC10-30 and -40

Date:         13 Jul 97 19:52:42 
From:         baejs3201@aol.com (BAEJS3201)
Organization: AOL http://www.aol.com
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Hey out there can anyone tell me what the differeents in a DC10-30 and
-40, I know the differents in a -10 and -30 is bigger engines,bigger wings
and center line gear.

Thanks
David