Today's Message Index:
----------------------
1. 08:12 AM - HDS Tire Pressure (Bill Naumuk)
2. 09:04 AM - Re: Re: Skysport Capacitive Fuel System (Jim Belcher)
3. 01:51 PM - Re: HDS Tire Pressure (LarryMcFarland)
4. 02:24 PM - Re: HDS Tire Pressure (Leo Gates)
5. 06:43 PM - Re: Skysport Capacitive Fuel System (jerry Shepard)
Message 1
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| Subject: | HDS Tire Pressure |
HDS people-
What PSI are you running in your tires?
Bill Naumuk
Townville, Pa.
HDS N601MG/Corvair 95%
Message 2
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| Subject: | Re: Skysport Capacitive Fuel System |
On Thursday 22 October 2009 01:31, fred sanford wrote:
>
> I used the skysport on my 601, and found it very accurate. Carlos may
> have a point about the different fuels, I don't know. I mounted it from
> the high end, with the probe running the full length of the tank to the
> bottom.
Carlos is right about different fuels affecting capacitive probes differently.
The dielectic constant of fuel varies from fuel to fuel.
However, the question I would ask is whether the variation in dielectric
constant impacts the accuracy of the reading more than the basic inaccuracy
of a float type fuel gauge. Float gauges aren't very accurate.
I also wonder how many different fuels (and hence, dielectric constants) we
really have. How many different fuels do we use? The only two I'm currently
aware of are auto gasd and 100LL.
--
============================================
Do not archive.
============================================
Jim B Belcher
BS, MS Physics, Math, Computer Science
A&P/IA
Retired aerospace technical manager
Mathematics and alcohol do not mix.
Do not drink and derive.
============================================
Message 3
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| Subject: | Re: HDS Tire Pressure |
Hi Bill,
I did use 21 to 23 psi, but found that when it cools, the tire pressure
drops a little below that and the plane is hard to roll.
Now the tires are 26 psi and the roll is very easy. When doing your
taxi testing, easy rolling is better for feeling what the
plane is doing.
Larry McFarland 601HDS at www.macsmachine.com
Bill Naumuk wrote:
> HDS people-
> What PSI are you running in your tires?
> Bill Naumuk
> Townville, Pa.
> HDS N601MG/Corvair 95%
Message 4
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| Subject: | Re: HDS Tire Pressure |
Bill, 20 PSI mains, 25 PSI tail, in my HDS, 674 empty weight, tail dragger.
Leo Gates
N601Z, CH601HDS TDO
Bill Naumuk wrote:
> HDS people-
> What PSI are you running in your tires?
> Bill Naumuk
> Townville, Pa.
> HDS N601MG/Corvair 95%
> *
>
>
> *
Message 5
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| Subject: | Re: Skysport Capacitive Fuel System |
I used the skysports capacitive fuel probe in my 3 gal header tank on my
701. I have it set that if I use about 1/2 gal of the 3 gal, it gives
me the Lowfuel alarm which I have connected to a flashing red LED in my
panel. one other neat feature is that if your battery voltage goes low,
the capacitance changes and it also sets off the warning light.
Jerry
----- Original Message -----
From: Carlos Sa
To: zenith-list@matronics.com
Sent: Wednesday, October 21, 2009 10:58 AM
Subject: Re: Zenith-List: Skysport Capacitive Fuel System
The text of your msg does not show, unless I ask Gmail to "show
original" (pasted below).
Capacitive probes have been discussed in the past, check the archives.
I remember the one thing against them is that if you use a fuel
different from the one with which you calibrate it, the reading will be
inaccurate.
Carlos
CH601-HD, plans
______________________________________________________
Have any of you used the Skysport Capacitive Fuel System, which is now
owned by Aircraft Spruce?
The float system provided with my 601XL with extended range tanks is
designed to mounted on top of the tank (not the one shown in the
building guides). Regardless, it seems that a float system for a long
tilted tank mounted near the wing root will not register any change from
full until a significant amount of fuel has been used.
The Skysport system can have a long capacitive measuring tube that
extends from the low end near the root to the high end towards the tip.
Seems like it would be much more accurate. Anyone try it? Thanks.
2009/10/21 <teblejw@att.net>
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