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brian-1927(at)lloyd.com
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 Posted: Thu Sep 13, 2007 8:24 pm Post subject: MF'ing air system! Yak-50 |
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On Sep 13, 2007, at 7:44 PM, Roger Kemp wrote:
| Quote: |
<viperdoc(at)mindspring.com>
Answer...quit possible. This being based on Bernolli's principle. A
small
line introduces a venture effect. There will be a drop in pressure
at the
point that the smaller line is connected to the larger line. There
is an
increase in pressure at the point of constriction with resistance
to flow.
At the point of dilation past the point of constriction there is a
drop in
pressure with a decrease in flow. The pressure will be lower in the
system
past the point of restriction. The density of air is also a factor
too, but
for this agreement you can assume that number is constant.
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<sigh> There is no venturi effect. It is a simple restriction.
Pressure is higher on the upstream side and lower on the downstream
side. Flow is limited by the restriction and nothing else ... if
there is indeed a restriction.
Time for Time to go look. Nothing else means a thing at this point.
--
Brian Lloyd 3191 Western Drive
brian HYPHEN 1927 AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
— Antoine de Saint-Exupéry
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
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brian-1927(at)lloyd.com
Guest
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| Posted: Thu Sep 13, 2007 8:46 pm Post subject: MF'ing air system! Yak-50 |
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On Sep 13, 2007, at 9:23 PM, Brian Lloyd wrote:
| Quote: |
On Sep 13, 2007, at 7:44 PM, Roger Kemp wrote:
>
> <viperdoc(at)mindspring.com>
>
> Answer...quit possible. This being based on Bernolli's principle.
> A small
> line introduces a venture effect. There will be a drop in pressure
> at the
> point that the smaller line is connected to the larger line. There
> is an
> increase in pressure at the point of constriction with resistance
> to flow.
> At the point of dilation past the point of constriction there is a
> drop in
> pressure with a decrease in flow. The pressure will be lower in
> the system
> past the point of restriction. The density of air is also a factor
> too, but
> for this agreement you can assume that number is constant.
<sigh> There is no venturi effect. It is a simple restriction.
Pressure is higher on the upstream side and lower on the downstream
side. Flow is limited by the restriction and nothing else ... if
there is indeed a restriction.
Time for Time to go look. Nothing else means a thing at this point.
|
I wish I could type. That was supposed to read, "Time for Tim to go
look."
Brian Lloyd 3191 Western Drive
brianl AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
--
Brian Lloyd 3191 Western Drive
brian HYPHEN 1927 AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
— Antoine de Saint-Exupéry
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
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mark.bitterlich(at)navy.m
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| Posted: Fri Sep 14, 2007 1:48 pm Post subject: MF'ing air system! Yak-50 |
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I disagreed in an earlier message... But what both of us really should have asked was:
Just how much smaller of a line are we talking about here? Assuming the original Russian line to be somewhere around a number 4-5, what size line did you use to go to your new tank and how long was it?
Mark
N50YK
--
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HawkerPilot2015
Joined: 10 Jan 2006
Posts: 503
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| Posted: Sun Sep 16, 2007 6:28 pm Post subject: Re: MF'ing air system! Yak-50 |
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I just got back from an airshow in Terre Haute...I will check in on the airplane this week.
I saw a four ship 3 Yak-s and a CJ....I could not find their owners.
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dontmesswtexas(at)yahoo.c
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| Posted: Sun Sep 16, 2007 6:55 pm Post subject: MF'ing air system! Yak-50 |
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[quote][b]
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ChangDriver
Joined: 15 Sep 2007
Posts: 266
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| Posted: Mon Sep 17, 2007 4:11 am Post subject: Re: MF'ing air system! Yak-50 |
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Brian:
You are correct, the problem appears to be a restriction in the line to the actuator. Also, to fix it, you need know noting about Mr. B, fluid dynamics, Gas Laws, etc.
Mark:
Does the pilot move the gear lever at the same rate in each case?
Craig
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