And just to complicate it even further, there was the B747-200SUD. Mike Gammon ----- Original Message ----- From: "Chris Wallace" <edwardwallace@xxxxxxx> To: <AIRLINE@xxxxxxxxxxxxxxxxx> Sent: Sunday, May 25, 2003 2:16 PM Subject: Re: 744 vs 743 > Hello all, > > In addition to the winglets, other differences of the -400 > over the -300 include an electronic cockpit, eliminating the > FE; a redesigned fillet at the forward wing root; and a wing > of a different airfoil section. The -400F has the winglets > but no extended upper deck whilst the Japanese domestic > version, the -400D, has the extended upper deck but not the > winglets. Only the -400 is in production and the Japanese > don't need the range-extending qualities on their short range > shuttle flights. There are other variations out there but > escape my recollection. > > Chris > > > >Is the only difference between the 747-300 and the 747-400 > the winglets? > >Could a 743 be converted into a 744 with the addition of > winglets? >