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lightsaber
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RE: Leeham: Boeing Has Lost Neo/MAX Battle Pt 2.

Thu Apr 14, 2016 10:55 pm

Quoting abba (Reply 193):
How much longer do you think CFRP will allow the 6 across tube to become compared to the 321 and still keeping good structural efficiency? And how would that translate into capacity?

I'm a fluids engineer, controls engineer, combustion engineer, a test engineer, and team(S) lead; I'm not a stress engineer, so this is my opinion. I think a CFRP wing and (partial) keel, mated to a beercan body, could be up to 6m longer. New structures will allow the cabin to shift back a little (1/4m?). So 6 more rows of coach and a door pair or 42 more people.

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tjh8402
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RE: Leeham: Boeing Has Lost Neo/MAX Battle Pt 2.

Fri Apr 15, 2016 1:09 am

Quoting lightsaber (Reply 200):

Quoting abba (Reply 193):
How much longer do you think CFRP will allow the 6 across tube to become compared to the 321 and still keeping good structural efficiency? And how would that translate into capacity?

I'm a fluids engineer, controls engineer, combustion engineer, a test engineer, and team(S) lead; I'm not a stress engineer, so this is my opinion. I think a CFRP wing and (partial) keel, mated to a beercan body, could be up to 6m longer. New structures will allow the cabin to shift back a little (1/4m?). So 6 more rows of coach and a door pair or 42 more people.

Lightsaber

Where does the 753 fit into that? I recall at one point recently DL said that plane had the best CASM of its entire fleet.
 
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Stitch
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RE: Leeham: Boeing Has Lost Neo/MAX Battle Pt 2.

Fri Apr 15, 2016 1:13 am

Quoting tjh8402 (Reply 201):
Where does the 753 fit into that?

The 757-300 cabin is just over 43 meters in length, which is 7m longer than the 757-200 and around 9m longer than the A321.

[Edited 2016-04-14 18:14:37]

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