O2 filling

On Nov 15, 10:39 pm, "Matt W. Barrow"
wrote:
"Dan" wrote in message

...

So short of doing your own transfilling, where does everyone get cheap
O2? Or are you paying big bucks at the FBOs? For an occasional user,
the transfilling equipment does not make sense.

An Oxygen optimizer (i.e., Mountain High or Aerox) makes your tank full of
O2 last about six to ten times longer than a normal system. Filling your own
and an Optimizer brings the cost of O2 down to near zero. Further, it makes
it worthwhile to use higher altitudes that an expensive system make
prohibitive.

Would it be worth it in a non-turbo aircraft? (ie. 182, Comanche?) I
live out west and have been debating for a while.

Anyone know of a good place that fills tanks in the Phoenix area?

--Dan

Dan wrote:

Would it be worth it in a non-turbo aircraft? (ie. 182, Comanche?) I
live out west and have been debating for a while.

Anyone know of a good place that fills tanks in the Phoenix area?


I have a normally aspirated aircraft and I live down here at sea
level. I regularly get up to 10,000 or so and sometimes higher.
I like having the portable system. Tank filling is hardly anything
and it doesn't need to be done that often. All of the oxygen
system vendors will top your tank off at Oshkosh (and probably
other shows) as well..

On Nov 17, 8:33 am, Ron Natalie wrote:
Dan wrote:
Would it be worth it in a non-turbo aircraft? (ie. 182, Comanche?) I
live out west and have been debating for a while.

Anyone know of a good place that fills tanks in the Phoenix area?

I have a normally aspirated aircraft and I live down here at sea
level. I regularly get up to 10,000 or so and sometimes higher.
I like having the portable system. Tank filling is hardly anything
and it doesn't need to be done that often. All of the oxygen
system vendors will top your tank off at Oshkosh (and probably
other shows) as well..

My tank usually only lasts one trip but I have 4 people breathing it
(I have an 'E' container which is a bit larger). I'm in California and
my normal Eastbound altitude is 13,500 in my non-turbo Mooney.
Anything lower than that is a bit scarry between down drafts and
dodging rocks. A normal trip is about 6 hours each way so about 12
hours on a tank with 4 breathing it.

However, it depends on where you fill it. If I fill in California I
get a good fill. If I fill in New Mexico I get much less because of
the altitude.

-Robert

Robert M. Gary schrieb:

However, it depends on where you fill it. If I fill in California I
get a good fill. If I fill in New Mexico I get much less because of
the altitude.

Huh???

You are kidding, right? The difference between an ambient of 15 psi and 10
psi on a 3000 psi fill isn't squat.

Jim



However, it depends on where you fill it. If I fill in California I
get a good fill. If I fill in New Mexico I get much less because of
the altitude.

-Robert

On Nov 18, 8:27 am, "RST Engineering" wrote:
You are kidding, right? The difference between an ambient of 15 psi and 10
psi on a 3000 psi fill isn't squat.

I"ve never gotten more than 2300lbs in New Mexico. They say its
because the ambiant pressure doesn't allow for a full fill. I usually
get about 2800lbs (as I recall) in California.

-Robert

It could depend on the type compressor. If it's a piston one,
compression ratio would set the maximum available pressure, and in NM
the pressure might be 23/28ths of that at sea level.



On Nov 18, 8:39 pm, "Robert M. Gary" wrote:
On Nov 18, 8:27 am, "RST Engineering" wrote:

You are kidding, right? The difference between an ambient of 15 psi and 10
psi on a 3000 psi fill isn't squat.

I"ve never gotten more than 2300lbs in New Mexico. They say its
because the ambiant pressure doesn't allow for a full fill. I usually
get about 2800lbs (as I recall) in California.

-Robert

Tina,

It could depend on the type compressor.


Compressor for? We're talking oxygen, not compressed air (I hope).

--
Thomas Borchert (EDDH)

"Dan" wrote in message
...
On Nov 15, 10:39 pm, "Matt W. Barrow"
wrote:
"Dan" wrote in message

...

So short of doing your own transfilling, where does everyone get cheap
O2? Or are you paying big bucks at the FBOs? For an occasional user,
the transfilling equipment does not make sense.

An Oxygen optimizer (i.e., Mountain High or Aerox) makes your tank full
of
O2 last about six to ten times longer than a normal system. Filling your
own
and an Optimizer brings the cost of O2 down to near zero. Further, it
makes
it worthwhile to use higher altitudes that an expensive system make
prohibitive.

Would it be worth it in a non-turbo aircraft? (ie. 182, Comanche?) I
live out west and have been debating for a while.

As with so many other points, it depends. First, I find it rather odd that
someone would have built in O tanks in a non-turbo aircraft. Also, much
depends on WHY you want to go high: terrain, distance, favorable winds...

When I lived in Montrose, CO, every flight pretty muh dictated going high,
often 15K or 16K feet to get over the mountains and over to the front range.
Added to this was most flights were 350 or more miles.

If you do use oxygen fairly often, check the prices on the O conservers and
do the math to see if it's worthwhile. Also, add in your fuel saving in
going higher.


Anyone know of a good place that fills tanks in the Phoenix area?

Call around to some welding supply stores, but don't tell them it's for an
aircraft, just tell them you're doing to fancy artwork welding. :~)


--
Matt Barrow
Performance Homes, LLC.
Cheyenne, WY

On Nov 17, 2:16 pm, "Matt W. Barrow"
wrote:
"Dan" wrote in message

...





On Nov 15, 10:39 pm, "Matt W. Barrow"
wrote:
"Dan" wrote in message

...

So short of doing your own transfilling, where does everyone get cheap
O2? Or are you paying big bucks at the FBOs? For an occasional user,
the transfilling equipment does not make sense.

An Oxygen optimizer (i.e., Mountain High or Aerox) makes your tank full
of
O2 last about six to ten times longer than a normal system. Filling your
own
and an Optimizer brings the cost of O2 down to near zero. Further, it
makes
it worthwhile to use higher altitudes that an expensive system make
prohibitive.

Would it be worth it in a non-turbo aircraft? (ie. 182, Comanche?) I
live out west and have been debating for a while.

As with so many other points, it depends. First, I find it rather odd that
someone would have built in O tanks in a non-turbo aircraft. Also, much
depends on WHY you want to go high: terrain, distance, favorable winds...

When I lived in Montrose, CO, every flight pretty muh dictated going high,
often 15K or 16K feet to get over the mountains and over to the front range.
Added to this was most flights were 350 or more miles.

If you do use oxygen fairly often, check the prices on the O conservers and
do the math to see if it's worthwhile. Also, add in your fuel saving in
going higher.



Anyone know of a good place that fills tanks in the Phoenix area?

Call around to some welding supply stores, but don't tell them it's for an
aircraft, just tell them you're doing to fancy artwork welding. :~)

--
Matt Barrow
Performance Homes, LLC.
Cheyenne, WY- Hide quoted text -

- Show quoted text -

Matt,

It would be a portable system. I am in a club with a 182 and a
Comanche 260. The main purpose of the O2 would be to get to MEAs over
high terrain enabling me to go IFR on those flights. Of course, the
manual says the ceiling on the Comanche is FL210, and the 182 is 18k,
however not having Oxygen, I am not sure how practical it is to go
much above 12.5k in those aircraft...

--Dan