Who's flying out of the higest elev airport?

Dudley Henriques wrote:

Normally you wouldn't. The whole world uses MSL! Why the Brits have a QFE as
an option is a big mystery to most of us in the US, but apparently they have
it as an option for pattern and VERY local work.

It's not only the Brits. At least France uses QFE for approach, too.

I've never flown in the UK, but I have flown in France. There, if
nothing else is mentioned on the VAC, then normal circuit altitude is
assumed to be 1000 ft AAL. QFE eliminates the need of calculations.

Of course, they could do it differently, but this is the way it is.

Stefan

Just checked -- Kollsman in my cherokee only goes to 28.1

Newps wrote:
You don't have to fly down there. Your altimeter goes down to 28.10.

but but but but....

Waste a perfectly gorgeous day to fly?

"Stefan" wrote in message
...
Dudley Henriques wrote:

Normally you wouldn't. The whole world uses MSL! Why the Brits have a
QFE as
an option is a big mystery to most of us in the US, but apparently they
have
it as an option for pattern and VERY local work.

It's not only the Brits. At least France uses QFE for approach, too.

I've never flown in the UK, but I have flown in France. There, if
nothing else is mentioned on the VAC, then normal circuit altitude is
assumed to be 1000 ft AAL. QFE eliminates the need of calculations.

Of course, they could do it differently, but this is the way it is.

Stefan
Apparently it's used throughout Europe, or at least in most of it.
I can't really say it's a bad idea, but it does open up for some confusion
when you begin to get into the gray areas around 3000 feet above sea level.
In the flatlands, it would work ok I guess. As you say, it's just in how
they do things over there. They, I'm sure, think we could do it easier over
in the U.S. :-)
D

"Blanche" wrote in message
...
Just checked -- Kollsman in my cherokee only goes to 28.1

That jives with what we're seeing all around.

Sounds like it's a beautiful area you have to fly in out there.
Dudley

FAR Part 43, Appendix E, implies the altimeter setting will be from 28.10 to
30.99 in. Hg.

However, I fail to see what all this fuss is about. Say you're at 10,000 ft
and pressure is about normal, say 20 in. Hg. Plugging into the altimeter
setting formula, this means the altimeter setting is 29.14 in. Hg. Nowhere
near the stops. So....on to Leadville!

John.
--
John T Lowry, PhD
Flight Physics
5217 Old Spicewood Springs Rd, #312
Austin, Texas 78731
(512) 231-9391

"Blanche" wrote in message
...
Just checked -- Kollsman in my cherokee only goes to 28.1

"Stefan" wrote in message
...
Dudley Henriques wrote:

Normally you wouldn't. The whole world uses MSL! Why the Brits have a
QFE as
an option is a big mystery to most of us in the US, but apparently they
have
it as an option for pattern and VERY local work.

It's not only the Brits. At least France uses QFE for approach, too.

I've never flown in the UK, but I have flown in France. There, if
nothing else is mentioned on the VAC, then normal circuit altitude is
assumed to be 1000 ft AAL. QFE eliminates the need of calculations.

Of course, they could do it differently, but this is the way it is.
Uk circuits are defined in heights AAL hence the convenience of setting QFE.
On an approach to an airfield you are given the QFE. If you are passing
through, ie in transit you would be given the QNH.

"Blanche" wrote in message
...
Newps wrote:
You don't have to fly down there. Your altimeter goes down to 28.10.

but but but but....

Waste a perfectly gorgeous day to fly?

ever thought that the reason they use QNH in the US is because the equipment
cannot do QFE because the range would have to be so high. Therefore its MSL
and the mental arithmatic.

In Europe, most of it is at a much lower elevation that the US and the
equipment will cope with our range of altitudes and the range of atmospheric
pressures we get. Hence we can use both QFE and QNH.
QNH is for when you are in transit and QFE is for in the pattern.
If you look at our Instrument Charts you will see both heights featured on
the approach plates and you can take your choice as to what you want to use.

John T Lowry wrote:

However, I fail to see what all this fuss is about.

The fuss is that you can't set the altimeter so that it reads 0 when on the ramp
at Leadville (or many places lower than that).

George Patterson
Battle, n; A method of untying with the teeth a political knot that would
not yield to the tongue.

On 9 Mar 2004 16:33:13 -0700, Blanche
wrote:

Newps wrote:
You don't have to fly down there. Your altimeter goes down to 28.10.

but but but but....

Waste a perfectly gorgeous day to fly?

Blanche... You didnt miss much flying to COS today. I fly out of it
everyday and today it was fairly rough. Got bounced around quite a
bit.


Scott