Cathay Pacific
Posts: 1715
Joined: Sat May 27, 2000 1:29 am

Leading Edge Of 744 And 743

Fri Apr 13, 2001 5:29 pm

i was reading a post in the civil aviation forum regarding that a CX743 built towards the end of the production time, they said that they had incorporated a few of the features of 744 into 743 and one of them was the leading edge.........i was wondering...what is the difference between the leading edge of a 744 and a 743??? can you tell the difference visually????

here is a pic of a retired CX743 with a 744 leading dege....


Click for large version
Click here for full size photo!

Photo © Colin Abbott



thanks for your help!!!!!!!! Smile


 Smile/happy/getting dizzy Smile/happy/getting dizzy Smile/happy/getting dizzy Fly Cathay Pacific....The Heart of Asia  Smile/happy/getting dizzy Smile/happy/getting dizzy Smile/happy/getting dizzy
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CX Flyboy
Posts: 6007
Joined: Sun Dec 26, 1999 6:10 pm

RE: Leading Edge Of 744 And 743

Sat Apr 14, 2001 2:46 pm

Where the wing joins the fuselage, there is a fairing to smoothen out the angle between the two. This applied to all -400s and late model -300s as B-HON is in this photo. On older 747s, the wing root simply joins the fuselage at a larger angle with no major attempt at blending the two surfaces.

That was very much a laymans explanation of it all. To get a decent answer, you should look for an engineer!!
 
Cathay Pacific
Posts: 1715
Joined: Sat May 27, 2000 1:29 am

RE: Leading Edge Of 744 And 743

Sat Apr 14, 2001 3:33 pm

CX flyboy:
Thanks for your explanation..........i think it is good enough!!!! i don't think i can understand if it goes anymore detailed!!!!!!!!  Laugh out loud

 Smile/happy/getting dizzy Smile/happy/getting dizzy Smile/happy/getting dizzy Fly Cathay Pacific.....The Heart of Asia  Smile/happy/getting dizzy Smile/happy/getting dizzy Smile/happy/getting dizzy
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musang
Posts: 788
Joined: Sun Apr 08, 2001 4:11 am

RE: Leading Edge Of 744 And 743

Tue Apr 17, 2001 4:20 am

Hi Cathay Pacific - I presume your enquiry on leading edges was mainly about the wing/fuselage fairing, but another difference, made possible by the -400's greater wingspan, is that the -400 has 6 leading edge flap segments outboard of the outer engines, whereas the other versions have only 5. Trailing edge flaps are essentially the same on all versions except of course the SP; note the lack of flap track fairings on this variant, which has single slotted flaps as opposed to the usual and more complex triple slotted fowler flaps. Regards - Musang.

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