But you shouldn't have loaded in the QNH? You need to use pressure altitude not pressure height for a density altitude calculation? Set 1013.25/29.92 on altimeter subscale, read pressure altitude corrected to standard pressure, enter that figure and the temperature into the computer. Anyway, the old whizz wheel, Jeppesen CSG-8A-which needed to be oiled it's that old, tells that for a density altitude of 9,300ft, you'd need a pressure altitude of 5,500ft and a temperature of +49c.(As near as metal whizz wheels can get)
Anyway again, it matters not too much. Isn't the challenge involved in flying out of Maun exactly what it always was? Survival in the face of disregard for every thought and intention behind a POH, sacrificed on the altar of the certain knowledge that if you don't take the risks someone else will be prepared to endanger life and limb in the service of employment?
eg: (An overloaded 206 out of there chewed up a lot of runway.)
(In the wet the calcrete becomes very slick.)
Slick would logically be the same as ice in terms of runway performance take off and landing graphs and limitations? How much runway does a fully loaded Caravan need on an icy surface at 3,000ft pa on a warm Maun day of +40c which gives a density altitude of about 6,500ft.
Glad to see it's just as dangerous, as argumentative and as fun as it always was.