Reality check
Reely
I haven't been actively involved on costing DOCs for some time now BUT.......... it seems to me that the figures bandied about on this thread are way too low. The 'published' figures are always optimistic I'm afraid, and some 10 years ago a budgetary cost for such an aircraft was something over £1000/hr, and not including an allowance for un-scheduled happenings (which WILL occur).
Never mind anything else but look at the engines. Reliable? Yes ..BUT you have to take account of the mini-turbine at 1775hrs or 3000 cycles and then the turbine O/H subsequently. How many compressors do you know of which made full O/H life on teh compressor cases alone? Anything over 1200 hrs you're very lucky indeed.
Would suggest putting all figures into a spreadsheet, dividing by O/H or TIMEX life, and add a BIG fudge factor. Then look at less significant sums like fuel etc (and insurance which is properly a fixed cost, not direct)
Just rying to be realistic - VFR