Re: Boeing considering ultra-long range 747-200X

Date:         15 Nov 97 16:24:42 
From:         kls@ohare.Chicago.COM (Karl Swartz)
Organization: Chicago Software Works, Menlo Park, California
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>: Range would be 9,200 statute miles (14,800 km) compared to 8,380 mi
>: (13,480 km) for the 747-400.

>How many routes are there where a range of 13,480km is not enough, but a
>range of 14,800km is? Can anybody name some of them?

Probably not all that many, but here are a few examples:

  LHR-PER (14,428 km)
  ORD-JNB (14,002 km)
  SFO-BOM (13,542 km)
  SFO-PER (14,749 km)

Note, though, that even a flight that's within the published range
specs may not be by operable in practice.  UA's ORD-HKG (12,549 km)
flight is summer only because the 747-400 can't do it against winter
headwinds, though the Phase III engine mods are supposed to change
this.  JNB-JFK (12,811 km) cannot by flown non-stop by a 747-400
(though the reverse can) due to the aircraft's "hot and high"
performance operating out of JNB.

The extra range may turn a marginal or difficult operation into one
which can be operated consistently and profitably.

--
Karl Swartz	|Home	kls@chicago.com
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