Instruments at auction
aircraftparts
Alcor Indicator dual egt p/n 46125 new. 2 1/4".
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=340803200
Vac Airspeed 40-260 knots. Instrument Flight Research p/n IFR230 s/n
S2483. 3 1/8 face.
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=340806730
UMA Oil Pressure guage 0-125 psi. p/n 3-311-32 new.
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=340809231
Indicator, Tachometer o-3500 _12 to 30vdc. TSO-C49a part number
78035-0175/ s/n c7000581. 3 1/8". Used as removed. As is.
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=340812337
Manifold Fuel Pressure Indicator TSO-C45 AS411 TSO-C47 AS408A p/n
PMF-41-11 s/n 60052 United Instruments. Man Press 10-35 in.hgabs. Fuel
Press2-20 gph. Cruise at 18 gph. 3 1/8".
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=340818269
J Kelley
aircraftparts <aircra...@excite.com> wrote in message
news:392C32C5...@excite.com...
> Vac Airspeed 40-260 knots. Instrument Flight Research p/n
IFR230 s/n
> S2483. 3 1/8 face.
What the hell is a "Vac" Airspeed gauge?
J Kelley
<fran...@NOSPAM.ihug.co.nz> wrote in message
news:393459F2...@whanganui.ac.nz...
>
> You point the pitot tube backwards.
>
> Or install the gauge on the wing and the pitot inside the
cockpit.
>
> Frank.
> :-)
J Kelley
Hot Damn, that sounds like such a good idea I got so excited
that I just double posted!! I'll just have to put in a bid on
that.
J Kelley
fran...@nospam.ihug.co.nz
J Kelley
Joe Hovel <j...@hovel.net.ru> wrote in message
news:UnvZ4.24$6g3....@vic.nntp.telstra.net...
> I have a vacuum airspeed indicator here - it had me fooled for
quite a
> while! If actually has a claibrated very small) venturi rather
than a pitot
> tube. I wonder if it more or less susceptible to icing? I
reasoned a venturi
> was more likely to ice up than a pitot, but then you get told
about pitot
> icing a lot during your pilot training...
> Anyone know?
>
Sounds like a ghost story to me.
J Kelley
> What do you mean by that? It's not a term I've heard
before.... would you
> like to see some digital photos of this set-up? I'd have to go
to the
> airport - it's too cold and wet here at the moment to go there
for fun, so
> it would take a while.....
>
> "J Kelley" <kal...@my-deja.com> wrote in message
> news:8h60aa$46c$1...@news.efn.org...
such an arrangement would work. If I seem overly skeptical,
it's because that's the kind of guy I'm.
On further reflection, it now seems possible if the venturi were
to be positioned so that it meets only undisturbed air, it could
work, but to what advantage?. Most venturis are mounted close
to skin surfaces in disturbed air and so the "vacuum" produced
would be less than suitable for the purpose intended. How does
your arrangement mount the venturi?
I would like to see your photos. I'm always anxious to learn
and I know that there's a world of information out there as yet
untapped.
J Kelley
O-ring Seals
wrote:
Joe,
Sounds interesting, but having problems finding fittings for 3/16
diabeter and what kind of salt do I need?
My suggestion: put it on your mantle and try to proof your copy.
O-ring Seals
>The venturi mounts into the airstream exactly the same as a gyro venturi, on
>a stalk about 5 inches long, at right angles to the airstream and has the
>venturi at the end. The venturi is about 5/8" diameter at the front and
>about 1/2" at the back and narrows to about 3/8" at the vacuum take-off,
>which appears to be an about 1/16"diameter hole or less, going into a 3/16"
>diabeter bore in the salt. the end of the stalk is connected to normal 1/4"
>bore tubing to the ASI.
>
>"J Kelley" <kal...@my-deja.com> wrote in message
>news:8h65tv$6a3$1...@news.efn.org...
J Kelley
> The venturi mounts into the airstream exactly the same as a
gyro venturi, on
> a stalk about 5 inches long, at right angles to the airstream
and has the
> venturi at the end. The venturi is about 5/8" diameter at the
front and
> about 1/2" at the back and narrows to about 3/8" at the vacuum
take-off,
> which appears to be an about 1/16"diameter hole or less, going
into a 3/16"
> diabeter bore in the salt. the end of the stalk is connected
to normal 1/4"
> bore tubing to the ASI.
As you have already surmised, I was totally unaware of such an
airspeed indicator. I'll chalk this up as good learning
experience.
Thanks for the information.
J Kelley
J Kelley
O-ring Seals <vint...@eudoramail.com> wrote in message
news:3936f0c3....@news.psnw.com...Oh, ye of little faith.
Joe Hovel
while! If actually has a claibrated very small) venturi rather than a pitot
tube. I wonder if it more or less susceptible to icing? I reasoned a venturi
was more likely to ice up than a pitot, but then you get told about pitot
icing a lot during your pilot training...
Anyone know?
"J Kelley" <kal...@my-deja.com> wrote in message
news:8h1r3u$7s6$1...@news.efn.org...
>
> <fran...@NOSPAM.ihug.co.nz> wrote in message
> news:393459F2...@whanganui.ac.nz...
Joe Hovel
like to see some digital photos of this set-up? I'd have to go to the
airport - it's too cold and wet here at the moment to go there for fun, so
it would take a while.....
"J Kelley" <kal...@my-deja.com> wrote in message
news:8h60aa$46c$1...@news.efn.org...
>
> Joe Hovel <j...@hovel.net.ru> wrote in message
> news:UnvZ4.24$6g3....@vic.nntp.telstra.net...
> > I have a vacuum airspeed indicator here - it had me fooled for
> quite a
> > while! If actually has a claibrated very small) venturi rather
> than a pitot
> > tube. I wonder if it more or less susceptible to icing? I
> reasoned a venturi
> > was more likely to ice up than a pitot, but then you get told
> about pitot
> > icing a lot during your pilot training...
> > Anyone know?
> >
>