Unfreakingbelievable!!! What kind of fly-by-night outfit puts aircraft on routes they know they can't feasibly do??? And as LCC's VP of Scheduling said, if the mission is beyond the capabilities of the A321, they simply won't sell all 183 seats. HELLO!!! Then why the hell try to cram more seats in the damn thing??? There go any profits you might have otherwise had.
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And if your talking a 60-75 minute turnaround for the fuel stop, you've essentially delayed that aircraft for the rest of the day. Why not take a few 757's off the northeast-Florida routes, which are no more than 800-900 miles, and put them on the few routes the A321 might run into trouble?