Questions tagged [mountain-flying]

Questions about flying in mountainous areas, and any special equipment or techniques needed to do so.

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3
votes
1answer
395 views

What is this strange structure, of a type often seen by pilots in hilly regions? [closed]

I spotted a strange structure near a few paragliding spots in italian Alps. It's a screen about 10 meters wide, 6 meters tall, mounted on concrete base on ridge top. Someone said it's a training ...
3
votes
3answers
246 views

Is the transition altitude around Denali still 18 kft AMSL, and, if so, how is this handled?

In North America, the transition altitude - the altitude below which everyone reports their altitude in feet above mean sea level (AMSL) and sets their altimeter to whatever the weather dictates that ...
7
votes
2answers
935 views

Why are oxygen requirements based on pressure altitude?

The FAA's oxygen rules in §91.211 are based on pressure altitude. Assuming our lungs are like our engines and wings and dependent on density altitude, why are the oxygen requirements not based on ...
9
votes
1answer
632 views

Where can I find more information about my grandfather's crashed B-18a bomber on Mt. Redoubt Alaska?

My father and I have chartered a plane for late August to search for the remains of my grandfather's B-18a bomber, which crashed in the summer of 1942 in Mt. Redoubt Alaska. I am specifically ...
5
votes
1answer
546 views

What are good tips for flying across Tejon pass?

I will be flying from Northern California to Southern California this weekend for the first time in a C172SP (KPAO to KFUL). My planned altitude is 9500 feet. I had a talked with my former instructor ...
4
votes
2answers
496 views

How can I avoid downdrafts and icing when crossing the Alps in a small airplane?

let's say I need to fly from LSZL to LSZP crossing the Alps with a small airplane (C150, Piper Tomahawk,...). How many times a year I could expect to find the suitable weather conditions to do that (...
8
votes
4answers
1k views

When crossing a mountain ridge at low height above terrain what consideration is given to turbulence?

Some background: I am not a pilot, but a researcher studying air-flow across mountain terrain using Computational Fluid Dynamics (CFD). During my studies, I have been particularly interested by high-...
2
votes
2answers
443 views

What is typical cruise altitude in the Himalayas?

An important tourist connection goes from Tribhuvan International Airport (VNKT) in Kathmandu, at 4,390 ft, to Tenzing-Hillary Airport (VNLK) in Lukla, at 9,334 ft. The mountains around Lukla quickly ...
7
votes
1answer
140 views

Does maximum altitude increase when pilot is acclimatised?

Normally 10,000 ft is considered safe altitude for emergency descents and 12,000 ft a maximum that can be flown in unpressurised aircraft without using supplementary oxygen. But when flying in the ...
8
votes
2answers
1k views

How will flying through mountains cause altimeter problems?

There is an old warning on mountain flying that wind flowing through a narrow valley will cause Venturi effect, thus causing a drop in static pressure and making our little Cessna fly lower than ...