Boeing 737 Max compared to Airbus A320 Neo
06-07-2019, 07:27 AM
#41
:-)
Joined APC: Feb 2007
Posts: 7,339
Originally Posted by rickair7777
IIRC, RR bailed on NMA, but they still have two vendors lined up.
NMA *should * be relatively quick and easy to be build. They are not trying out a bunch of new gee-whiz tech or production paradigms (like 787), it's more an exercise in applying existing tech (much of it new-ish but already flying on other planes) to a different size niche. Same with motors, they'll use existing cores, tweaked for the specific mission. They know it has to get to market (relatively) quickly, otherwise the niche will get filled with buses of one flavor or another.
NMA *should * be relatively quick and easy to be build. They are not trying out a bunch of new gee-whiz tech or production paradigms (like 787), it's more an exercise in applying existing tech (much of it new-ish but already flying on other planes) to a different size niche. Same with motors, they'll use existing cores, tweaked for the specific mission. They know it has to get to market (relatively) quickly, otherwise the niche will get filled with buses of one flavor or another.
06-07-2019, 07:42 AM
#42
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Joined APC: Jan 2006
Position: Engines Turn Or People Swim
Posts: 39,275
Originally Posted by Mesabah
Yeah, but which existing cores? This plane has to compete against the GTF A321XLR. For Boeing, they are stuck delaying till the UltraFan is available with Variable Pitch in 2030ish.
PW is still in the mix, I assume they can readily adjust one of their existing GTFs.
06-07-2019, 01:27 PM
#43
:-)
Joined APC: Feb 2007
Posts: 7,339
Originally Posted by rickair7777
Ultrafan is RR.
PW is still in the mix, I assume they can readily adjust one of their existing GTFs.
PW is still in the mix, I assume they can readily adjust one of their existing GTFs.
06-08-2019, 06:29 AM
#45
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Joined APC: Jan 2006
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Originally Posted by aviatorhi
More likely than not I would imagine they sling a GTF on it with room to grow to future tech, now that fan diameters are not going to be growing as exponentially as they have between theJT8D and today.
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