G44 wrote:Simon,
How did your airplane do up high? How high did you get?
Kurt
Kurt- we turned for home at 15,000. 16 degree OAT, calm air. Two medium size guys and full fuel. I wasn't really trying, we were just enjoying the scenery. Had no problem continuing to climb at a couple hundred fpm, with CHTs, EGTs and oil temp in the green on the CGR-30P, about 16" MP, and the MT full in at 2650 rpm.
Could have overflown 14,200 camp, but having stood down there, the idea of buzzing climbers rubs me wrong personally.
-DP
edit:
A widely-acknowledged phenomenon on Denali is that the summit altitude at 20,000 feels a couple thousand feet higher physiologically than Kilimanjaro or Chimborazo*, which are comparable elevations, but situated on the equator. The idea is that as the earth rotates, spinning forces cause the atmosphere to bulge near the equator, pretty much the way they also cause the oceans to bulge near the equator. So when you place a 20,000' mountain near the arctic circle, there is less pressure on the summit to aid gas exchange in the lungs. By rights this should also influence density altitude, but I don't recall ever seeing latitude on a density-altitude formula. Is that something you airline types encounter?
*Fun fact: due to this phenomenon of equatorial bulging, the summit of Chimbo at a bit over 20,000 MSL is actually the furthest point on the planet from the center of the earth.