B772LR vs. A345

[TAP-A343]

There's several certification criteria, and none hold more weight than the others, i.e. - either you pass them all, or you fail the cert.

That's what happened with PW, they got (what would've been) the PW4092 to proper thrust levels and decent SFC, but they failed miserably on emissions and thus had to restrict that engine and the MTOW of any plane operating with it.

Major disadvantage, which is why PW is essentially a non-factor among longrange 777 orders nowadays.

Thanks for your info.

GE had them running at 127K for hundreds of hours. Certifiying it is not a problem- EK has long barked about wanting more thrust- but then, EK isnt moaning about hot/high ops from DXB using cruddy A340's or lower powered 777A's, is it?

IB decision was forced- and you know it- thats why they now have the POSA346- because it cost them nothing.

I see what you mean but wouldn't IB need that certification to operate the B773ER without weight restrictions on their very high/hot destinations?

Regards.

[ConcordeBoy]

I see what you mean but wouldn't IB need that certification to operate the B773ER without weight restrictions on their very high/hot destinations?

That'd be nice, but not a necessity.

Few longhaul intercontinental routes in any airline's arsenal are opped restriction free.

[BOEING777X]

The 777-300ER now operates without ANY restrictions bar ETOPS.


Besides, discussing IB is irrelevant since they have the crappier alternate in place...

[TAP-A343]

That'd be nice, but not a necessity.

Few longhaul intercontinental routes in any airline's arsenal are opped restriction free.

The 777-300ER now operates without ANY restrictions bar ETOPS.


Besides, discussing IB is irrelevant since they have the crappier alternate in place...

Thanks for your opinions, guys.

Regards.