they reckon it got them the equivalent of 2 airframes for zero cost
How does that work? It may be possible to shave ten minutes from a turnaround. The total time saved may equate to two fleet units but is that time realisable? For example, if one B738 has 8 t/rounds a day, that's 80 minutes saved but can that time be profitably used, bearing in mind that 7 hours a day are 'lost' by virtue of curfews in Sydney and Adelaide. I'd like to see the logical explanation.