Bo Darville

When is the Q4 earnings call scheduled…?

notEnuf

There is a best practice for every airplane and the 737 is no different. That said, instead of working within the FAA defined certification limits Boeing used the old airframe and grandfather it as they stretched and redesigned it. The tube is diameter is the only original dimension. The wing is redesigned, the engines have migrated forward and up as they've grown to keep from alterting the gear and the fuselage has lengthed to keep it all in balance (sort of) None of this would be approved as a whole new design but yet here we are. To make all of this work through the incestual relationship with the FAA Boeing got their Frankenliner approved and even went too far with the MAX BS. You can defend them if you like but the world is full of outdated poorly designed aircraft. Boeing has become a space and defense contractor and the airliner business is kept to keep the company provenance but it has to support itself and not cost money so the decisions reflect those priorities.

notEnuf

It's not yet, ussually around the middle of January and it's the full year call you haveto back out the previous Qs from the 10-K for just Q-4 info. But yeah, that would be the next likely opportunity on the calendar since there aren't any splashy events to steal the show. Besides, Delta is more promotional of passenger facing stuff rather than celebrating the order of more cogs for the machine.

OOfff

When was the last time delta announced a large order during a quarterly earnings call?

sailingfun

The part no one mentions is the A321 NEO has similar issues and various software fixes have been applied or are in the works. Many of the airframes have had to block the last two rows of seats for CG.

As for the MAX, the larger nacelles for the A321neo are placed further up relative to the wing (Figure 2) but no further forward. The nacelles are larger than the 737 nacelles, however, so the pitch up moment from the engines in isolation can be similar. As the engines sit lower on the wing their combined effect with the rest of the aircraft and its wing is not the same as the 737 MAX. According to Airbus, it has not been forced to do anything special to control the changed pitch balance of the A321neo.

Figure 2. A321 below and A321neo above. The neo has larger engine nacelles, mounted higher relative to the wing. Source: Airbus and Leeham Co.

The AD and the explanation from Airbus singles out recently changed flight laws in the ELACs for the A321neo to be the root cause for the pitch-up described in the AD. It allows the Pilot to command fast dynamic pitch ups when in Flare mode (which is just before landing) and at a very aft CG. If the pilot keeps commanding the fast pitch-up into the stall region it can overwhelm the present anti-stall algorithm. The FBW software needs a change so this condition does not occur and the Airbus anti-stall function works as described in the Flight Manual. Until this change is fielded 3Q202o there are restrictions to the aircraft’s aft CG limit to avoid the described condition to appear.

JamesBond

LUV drove the industry for far to long.

Dayzzofff

nobody likes a troll…

Fraternally,
a troll

crazyjaydawg

Just stop trying so hard already. You’re digging more and more holes.

The 321NEO issue paled in comparison to the MAX. Also that longwinded post you just made is from information that is over 4 years old. That software fix was made before Delta ever took delivery of a single frame.

Trolls gonna troll.

higney85

as someone flying one the 319/320 land slightly different than a 321. The 321 and 321NEO seem to land exactly the same. Only heard “pitch” aural one time on a 321 and it was gusty winds after the mains touched and nose came up in a gust as spoilers deployed. No strike and it was 40+ winds that lifted the nose right at touchdown when nose down input was already happening. Take a look at the latest flight safety newsletter (think that’s the one) talking about tail strikes. The 73 leads the way in the issue. Not knocking any pilot but numbers wise the 321N isn’t creating a crazy trend.

runinonfumes

It seems to me that ORIGINALLY Boeing tried to make the perfect flying aircraft for market. In the 50s thru the 90s they mostly did. Everyone loves the original execution of their planes.

Douglas always seems to make complete crap. It was cheap and took a lot more Pilot skill and training to compensate for the inherent design flaws they never wanted to fix.

airbus was always about trying to solve the poor pilot skill problem will a computer, and for the most part they have been successful. Now they are trying to make the the airframe service such a broad market it's impossible to make a cost effective airplane meet all those requirements. So they go about trying to solve the introduced aircraft flaws with computers, it has worked before why not again.