Originally Posted by
sailingfun
Is 11:40 the scheduled block time for the whales in the winter or is that the summer time block. If its the winter time block then 11:55 for the summer may not be unreasonable on the 330.
11:40 is the block time for the 747-400 on the day prior to the switchover to the A330. Its based on winds on 28 March/29 March.
11:55 is the block time for the A330 based on winds for day of changeover so one day later than above.
747-400 cruise mach = 0.85 to 0.87
A330 cruise mach = 0.82
SLC-NRT would also be 12:00 + with these winds.
Side Note: It is not unusual for SFO-NRT flights to takeoff at MAX Structural GW, same model 330 as the one that will be flying LAX-NRT and SLC-NRT.