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Winnerhofer
17th Mar 2019, 11:01
Not sure if this has been covered.
Is the Max's new CG giving W & B problems la A321/A346?
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CONSO
18th Mar 2019, 06:28
Not sure if this has been covered.
Is the Max's new CG giving W & B problems la A321/A346?
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NO NO NO
Please read seattletimes article

https://www.seattletimes.com/business/boeing-aerospace/failed-certification-faa-missed-safety-issues-in-the-737-max-system-implicated-in-the-lion-air-crash/

DaveReidUK
18th Mar 2019, 08:57
Not sure if this has been covered.
Is the Max's new CG giving W & B problems la A321/A346?

Some carriers have reportedly encountered W&B limitations on the 737NG too, because of the nature of their operation.

PPRuNe: Ryanair Weight and Balance Issues? (https://www.pprune.org/passengers-slf-self-loading-freight/366421-ryanair-weight-balance-issues.html)

Skyjob
18th Mar 2019, 10:35
Some carriers have reportedly encountered W&B limitations on the 737NG too, because of the nature of their operation.

PPRuNe: Ryanair Weight and Balance Issues? (https://www.pprune.org/passengers-slf-self-loading-freight/366421-ryanair-weight-balance-issues.html)
Referring to a post from a decade ago, since then procedures have changed a lot, as has this airline...

DaveReidUK
18th Mar 2019, 14:35
Referring to a post from a decade ago, since then procedures have changed a lot, as has this airline...

Yes, I'd be surprised if 10 years wasn't enough time to develop a workaround. The aircraft itself hasn't changed, of course.

Skyjob
19th Mar 2019, 10:44
Yes, I'd be surprised if 10 years wasn't enough time to develop a workaround. The aircraft itself hasn't changed, of course.
Think what the problem was in those days was the free seating policy, creating a situation where weight would invariably shift forward.
Added to that the baggage policy to load bags in hold 2 in front of wings, adding to a nose heavy scenario.
With longer flights, more centre fuel required, CG moves forward, resulting in a pile up of forward weights.
The weight and balance limits were further limited by company to create an artificial additional safety layer, many companies do this, just compare FPPM cg envelope vs OMB published.