One thing I know for sure, the A345 has the ability to fly SIN - LAX return year round with a normal full three-class configuration including standard freight.
SQ have chosen not to configure their craft like this in order to take advantage of the planned influx of premium passengers coming to them as they'll be the only airline offering this non-stop alternative.
This is absolutely incorrect. It is severely payload restricted. SQ
believes the strategy of relying on premium traffic for ultra long haul flights will work for them. So, they are willing to take the risk of restricted payload.
So assumably the 777-200LR will have similar issues negotiating SIN-LAX and will likely not be able to do SIN-JFK at all either?
Yes, but I would say the 772LR might have a payload advantage equivalent to a double digit number of extra passengers. For SQ
, Airbus had to increase the 345 MTOW by 7t (read: extra fuel tanks) to meet SQ
Airbus is doing the same. I don't think I need to tell you why Airbus recently increased the MTOW of 345/6 by 3t and offered an "optional" 372t 345 to SQ
. The baseline 345/6 already carries about 10% more fuel than the 772LR/3ER. With the additional lower-deck crew rest, I doubt the 345 would have any volumetric cargo advantage over the 772LR.