Who's flying out of the higest elev airport?

Hey, you mountain types out there :-) I'm doing some research on a safety
issue and need your help . I need a post from someone flying out of Colorado
somewhere, preferably Telluride or a field very close to Telluride. I need
as close to the highest elevation in the U.S. as I can get.
I'm not dealing with this issue in the context of right or wrong as it
pertains to mountain flying. I need to know if the Kollsman window in your
altimeters has a wide enough range to allow you, IF YOU DESIRED TO DO SO, to
set your altimeters to 0 elevation on a consistent basis before take off at
your field instead of a MSL setting. Again, I'm only interested in the
possibility, not the right and wrongs involved with doing this.
Thanks,
Dudley Henriques
International Fighter Pilots Fellowship
Commercial Pilot/ CFI Retired
For personal email, please replace
the z's with e's.
dhenriquesATzarthlinkDOTnzt

"Dudley Henriques" wrote in message nk.net...
Hey, you mountain types out there :-) I'm doing some research on a safety
issue and need your help . I need a post from someone flying out of Colorado
somewhere, preferably Telluride or a field very close to Telluride.

Leadville, CO is the highest elevation airport in the US (at least so says the sign
on the FBO building). Been there once.

I can't imagine using QFE in the mountains, not just because of the fact that the
instrument won't handle it. You don't have to go very far from a mountain
strip until you get into radically different terrain heights. Those altitudes are
published in MSL, the relationship to the airport field elevation isn't overly
interesting.

Hey, I live at 3650 and can't set my altimeter to zero.



Dudley Henriques wrote:

Hey, you mountain types out there :-) I'm doing some research on a safety
issue and need your help . I need a post from someone flying out of Colorado
somewhere, preferably Telluride or a field very close to Telluride. I need
as close to the highest elevation in the U.S. as I can get.
I'm not dealing with this issue in the context of right or wrong as it
pertains to mountain flying. I need to know if the Kollsman window in your
altimeters has a wide enough range to allow you, IF YOU DESIRED TO DO SO, to
set your altimeters to 0 elevation on a consistent basis before take off at
your field instead of a MSL setting. Again, I'm only interested in the
possibility, not the right and wrongs involved with doing this.
Thanks,
Dudley Henriques
International Fighter Pilots Fellowship
Commercial Pilot/ CFI Retired
For personal email, please replace
the z's with e's.
dhenriquesATzarthlinkDOTnzt

"Ron Natalie" wrote in message
. ..

"Dudley Henriques" wrote in message
nk.net...
Hey, you mountain types out there :-) I'm doing some research on a
safety
issue and need your help . I need a post from someone flying out of
Colorado
somewhere, preferably Telluride or a field very close to Telluride.

Leadville, CO is the highest elevation airport in the US (at least so says
the sign
on the FBO building). Been there once.

I can't imagine using QFE in the mountains, not just because of the fact
that the
instrument won't handle it. You don't have to go very far from a
mountain
strip until you get into radically different terrain heights. Those
altitudes are
published in MSL, the relationship to the airport field elevation isn't
overly
interesting.

I understand . That's why I specified the context as not being in the right
or wrong dept :-)..... (restricted to only the possibility factor). I just
can't remember the Kollsman low pressure side maximum for our GA altimeters
here in the U.S. I think it's 27.5 or 25.5 but I can't remember exactly
which; and I need to have this for a data point.
I'm attempting to come up with an average point above sea level based on a
standard atmosphere where 0 sets can't be made under normal conditions.
Should be easy, but I need that Kollsman range to do it.
Right now, with the information I have, I'm at around 2500 feet ASL for that
maximum, but not remembering that Kollsman window range, I want to be sure.
I just need some verifying data.
Thanks Ron,
Dudley

Thanks Newps; that jives with what I have so far anyway. I'm assuming a 27.5
low end on the Kollsman. Does that sound right to you. I'm at home and can't
check it :-)
Dudley
"Newps" wrote in message
news:5g13c.523826$na.1181072@attbi_s04...
Hey, I live at 3650 and can't set my altimeter to zero.



Dudley Henriques wrote:

Hey, you mountain types out there :-) I'm doing some research on a
safety
issue and need your help . I need a post from someone flying out of
Colorado
somewhere, preferably Telluride or a field very close to Telluride. I
need
as close to the highest elevation in the U.S. as I can get.
I'm not dealing with this issue in the context of right or wrong as it
pertains to mountain flying. I need to know if the Kollsman window in
your
altimeters has a wide enough range to allow you, IF YOU DESIRED TO DO
SO, to
set your altimeters to 0 elevation on a consistent basis before take off
at
your field instead of a MSL setting. Again, I'm only interested in the
possibility, not the right and wrongs involved with doing this.
Thanks,
Dudley Henriques
International Fighter Pilots Fellowship
Commercial Pilot/ CFI Retired
For personal email, please replace
the z's with e's.
dhenriquesATzarthlinkDOTnzt

I was just at the airport today and I looked at my new overhauled United
altimeter. The lowest setting is 28.10. There is a little travel past
that but you'd have to guess at what the setting really is. The station
pressure here is usually around 26 inches. Looks like the highest
altitude for which you could correct to zero will be about 2000 MSL,
depending of course on the actual altimeter setting.



Dudley Henriques wrote:
Thanks Newps; that jives with what I have so far anyway. I'm assuming a 27.5
low end on the Kollsman. Does that sound right to you. I'm at home and can't
check it :-)
Dudley
"Newps" wrote in message
news:5g13c.523826$na.1181072@attbi_s04...

Hey, I live at 3650 and can't set my altimeter to zero.



Dudley Henriques wrote:


Hey, you mountain types out there :-) I'm doing some research on a

safety

issue and need your help . I need a post from someone flying out of

Colorado

somewhere, preferably Telluride or a field very close to Telluride. I

need

as close to the highest elevation in the U.S. as I can get.
I'm not dealing with this issue in the context of right or wrong as it
pertains to mountain flying. I need to know if the Kollsman window in

your

altimeters has a wide enough range to allow you, IF YOU DESIRED TO DO

SO, to

set your altimeters to 0 elevation on a consistent basis before take off

at

your field instead of a MSL setting. Again, I'm only interested in the
possibility, not the right and wrongs involved with doing this.
Thanks,
Dudley Henriques
International Fighter Pilots Fellowship
Commercial Pilot/ CFI Retired
For personal email, please replace
the z's with e's.
dhenriquesATzarthlinkDOTnzt

Dudley Henriques wrote:

I just
can't remember the Kollsman low pressure side maximum for our GA altimeters
here in the U.S. I think it's 27.5 or 25.5 but I can't remember exactly
which; and I need to have this for a data point.

Perhaps this will help.
http://www.ansys.com/industry/aerosp.../whittum1.html

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

I have it at present somewhere between 2500 and 3000 feet ASL as a possible
limit parameter based on averaging out the altimeter settings for the U.S.
It's interesting about the low Kollsman number range. With 28.10, I'm
beginning to see some variables in the low range that I didn't know was
there. I always assumed all the Kollsmans would all be the same. It will be
interesting to see if others have different numbers for their Kollsmans.
D
"Newps" wrote in message
news:Mf33c.87121$PR3.1225813@attbi_s03...
I was just at the airport today and I looked at my new overhauled United
altimeter. The lowest setting is 28.10. There is a little travel past
that but you'd have to guess at what the setting really is. The station
pressure here is usually around 26 inches. Looks like the highest
altitude for which you could correct to zero will be about 2000 MSL,
depending of course on the actual altimeter setting.



Dudley Henriques wrote:
Thanks Newps; that jives with what I have so far anyway. I'm assuming a
27.5
low end on the Kollsman. Does that sound right to you. I'm at home and
can't
check it :-)
Dudley
"Newps" wrote in message
news:5g13c.523826$na.1181072@attbi_s04...

Hey, I live at 3650 and can't set my altimeter to zero.



Dudley Henriques wrote:


Hey, you mountain types out there :-) I'm doing some research on a

safety

issue and need your help . I need a post from someone flying out of

Colorado

somewhere, preferably Telluride or a field very close to Telluride. I

need

as close to the highest elevation in the U.S. as I can get.
I'm not dealing with this issue in the context of right or wrong as it
pertains to mountain flying. I need to know if the Kollsman window in

your

altimeters has a wide enough range to allow you, IF YOU DESIRED TO DO

SO, to

set your altimeters to 0 elevation on a consistent basis before take
off

at

your field instead of a MSL setting. Again, I'm only interested in the
possibility, not the right and wrongs involved with doing this.
Thanks,
Dudley Henriques
International Fighter Pilots Fellowship
Commercial Pilot/ CFI Retired
For personal email, please replace
the z's with e's.
dhenriquesATzarthlinkDOTnzt

This is pretty much what I need George. Thanks much.
Dudley
"G.R. Patterson III" wrote in message
...


Dudley Henriques wrote:

I just
can't remember the Kollsman low pressure side maximum for our GA
altimeters
here in the U.S. I think it's 27.5 or 25.5 but I can't remember exactly
which; and I need to have this for a data point.

Perhaps this will help.
http://www.ansys.com/industry/aerosp.../whittum1.html

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

Dudley, I found reference to an air data computer which would accept an
altimeter setting of 26.75 to 33.00.

Stan

"Dudley Henriques" wrote in message
nk.net...
Hey, you mountain types out there :-) I'm doing some research on a safety
issue and need your help . I need a post from someone flying out of
Colorado
somewhere, preferably Telluride or a field very close to Telluride. I need
as close to the highest elevation in the U.S. as I can get.
I'm not dealing with this issue in the context of right or wrong as it
pertains to mountain flying. I need to know if the Kollsman window in your
altimeters has a wide enough range to allow you, IF YOU DESIRED TO DO SO,
to
set your altimeters to 0 elevation on a consistent basis before take off
at
your field instead of a MSL setting. Again, I'm only interested in the
possibility, not the right and wrongs involved with doing this.
Thanks,
Dudley Henriques
International Fighter Pilots Fellowship
Commercial Pilot/ CFI Retired
For personal email, please replace
the z's with e's.
dhenriquesATzarthlinkDOTnzt