FLY777UAL From United States of America, joined May 1999, 4512 posts, RR: 3 Posted (10 years 5 months 2 weeks 17 hours ago) and read 2411 times:
I'm sure this is going to sound confusing as hell...
I am curious to see if there are any significant economic pitfalls for an airline to operate a mixed 777-200ER/LR fleet with roughly the same number of each model.
In thinking to the range of markets which can be served by both aircraft from the United States to Asia, some flights (such as the N. Pacific destinations of Japan, Korea, China) are perfect for the passenger/freight load an -ER has, while the -LR would be overkill. On other flights to the S. Pacific (Australia, Singapore, Thailand), the -LR is the best performer where the -ER would see many operational limits placed on westbound flights.
Operating with this mix between the two aircraft seems as if it wouldn't allow for maximum effeciency in aircraft scheduling, as a NRT-LAX -ER flight cannot turn and operate a full LAX-MEL trip. In short, Would the unnecessary weight which the -LR aircraft would bring to the shorter N. Pacific routes be outweighed by the operational flexibility of operating an entirely -LR fleet on an airline's Pacific route network?
RJ111 From , joined Dec 1969, posts, RR:
Reply 1, posted (10 years 5 months 2 weeks 13 hours ago) and read 2253 times:
Interesting! I guess it would depend on the fleet size, schedules and many other factors. A fleet of 3 772ERs and 3 772LRs might be silly, but a fleet of 30 772ERs and 10 772LRs wold be very beneficial i'd imagine. The 772LR weighs roughly 10 tons more than the ER, that's a lot of dead weight if it isn't needed. I'm sure there would be ways to get around the scheduling, so that the right plane is being used for the right mission, like you mentioned. The only real concern would be flexibility if a plane goes tech. Which is a relatively rare occurance.
Cubsrule From United States of America, joined May 2004, 24137 posts, RR: 21
Reply 2, posted (10 years 5 months 2 weeks 13 hours ago) and read 2240 times:
Quoting RJ111 (Reply 1): The only real concern would be flexibility if a plane goes tech. Which is a relatively rare occurance.
Fleet size and scheduling could be such that the spare is always an LR. Thus, if an LR goes tech, they are set, and if an ER goes tech, they are stuck hauling some more weight around, but hopefully the flight can go out basically as scheduled- and the additional fuel burn is presumably much cheaper than the 250 stranded pax.
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