Originally Posted by
T-Vasis
Seasonally adjusted rASK fell by an annualised 3.7% during the quarter which is a significant hit to rASK. QF stated that rASK rose by 2.1%, however, this is on a YoY basis. Yields may be on the slide.
An astute observation.
From the point of view of yield, an aircraft stretching range needs to sacrifice revenue payload for fuel payload and as such yield on premium cabins is a vital characteristic of route profitability.
Airbus and Boeing both quote their ranges based on a 'standard' cabin layout and density. From memory I think it's about 365-370 pax. Qantas is planning a lower number of passengers, 300 or less, weighted towards F/J/W cabins. That lets them cut weight in passengers, baggage, seats (although premium seats are heavier...), food, water, crockery etc. All of that extends the range beyond the OEM's standard range. JFK should be fine, range wise. LHR might require some seats to be blocked in economy depending on the winds.
Both manufacturers have changed their generic assumptions with respect to "configuration" and also the reserve fuel is calculated differently which changes stated/achieved range profile considerably.
Nonetheless operating economics will mean that premium cabin yield is very important. Stretching range with a cabin full of discount economy isn't easy....