Originally Posted by
machtuk
Remember yr 160 HP is severely hamstrung at that Alt & a FP prop, the HP won't be there. Rated HP at take off is NEVER what the engine is capable of with a FP prop & normally aspirated.
Id pick yr day to do this, early morning, light winds & always have an 'out' I've been in there once & the terrain is magical but is a hazard!
you’ll lose HP due height, but gain it due to low temperature. In Australia you’d be surprised at the density altitude of some of out airports in Summer. 5,000 ft is kids stuff in America where most of these fly. What’s its service ceiling ? 14,000 ft?
If if you are worried, just go out tomorrow and climb to 5000 ft and see what climb you get. Remember to use redline, not some lower limit imposed by a flying school to protect its engines.
Hotham has effectively 1500m of runway. Heaps for a C172.
If if you turn right on takeoff from runway 29 there is the valley to Anglers Rest. The terrain continues to rise on the left and the terrain is not as clear.
if you take off on runway 11 it’s downhill and should be easy.
I’d be more concerned about weather than altitude performance.