Today's Message Index:
----------------------
1. 08:22 AM - Re: hydro lock (Andy Hawes)
2. 08:32 AM - Re: hydro lock (me262pilot@comcast.net)
3. 08:48 AM - Re: hydro lock (flir47)
4. 08:51 AM - Letters (John Graham)
5. 09:36 AM - Re: Letters (A. Dennis Savarese)
6. 09:46 AM - Re: hydro lock (Scooter)
7. 09:57 AM - Re: hydro lock (Scott Poehlmann)
8. 10:03 AM - Re: hydro lock (Brian Lloyd)
9. 10:04 AM - Re: Letters (Scott Poehlmann)
10. 11:16 AM - Re: Letters (ByronMFox@aol.com)
11. 11:57 AM - Re: Letters (DaBear)
12. 01:33 PM - hydraulic lock (Joe Howse)
13. 02:19 PM - Re: hydro lock (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
14. 02:22 PM - Re: Re: hydro lock (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
15. 02:26 PM - Re: Cockpit bulbs (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
16. 02:36 PM - Re: Cockpit bulbs (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
17. 02:45 PM - UOTERe: Re: MF'ing air system! Yak-50 (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
18. 02:48 PM - Re: Re: MF'ing air system! Yak-50 (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
19. 03:26 PM - Re: Cockpit bulbs (Roger Kemp)
20. 03:26 PM - Re: Cockpit bulbs (A. Dennis Savarese)
21. 06:32 PM - Re: Cockpit bulbs (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
22. 07:20 PM - Re: UOTERe: Re: MF'ing air system! Yak-50 (viperdoc)
23. 07:24 PM - Re: Cockpit bulbs (viperdoc)
24. 09:07 PM - Re: hydro lock (Walter Lannon)
25. 10:01 PM - Re: UOTERe: Re: MF'ing air system! Yak-50 (Brian Lloyd)
26. 10:04 PM - Re: hydro lock (Brian Lloyd)
27. 10:33 PM - Lone Star Red Star, May 2008 (Jon Boede)
Message 1
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Hey guys,
Future M14P pilot here -- wouldn=B9t using a quick drain valve collecting
from cylinders 4, 5 and 6 be an alternative to pulling the plugs? I=B9m not
sure if the Yak folks have/use these drains or not and I=B9m just trying to
verify if pulling the plugs AND using a drain valve are necessary -
Thank you!
Andy
www.radialrocketman.com
Nashville, TN
andy717@comcast.net
On 9/13/07 7:49 PM, "HodgeJW@aol.com" <HodgeJW@aol.com> wrote:
> Hey Guys,
>
> I was flying friends Yak 50 today (Tim G). I parked it for about 15 min.
when
> I went back to start it, I debated about whether to pull the prop thru or
not.
> I mean it was only 15 min. right? I only pull my 52 thru first flight of
the
> day. Well good thing I did, it was locked SOLID. Pulled the cowls, and bo
ttom
> plugs, and you wouldn't believe the amount of oil that came out. From now
on,
> if I walk away from it, I'll pull it thru. On another note, man will a 50
> tumble!!!! Damn, I love that plane. Here lately I've been flying some hot
rods
> (Pitts S2C Suk 29 Extra 300) but this 50 has some serious personality. I
cant
> thank Tim enough for letting me have access to this beast. Thanks man.
>
> Jay
>
>
>
>
> See what's new atblank">Make AOL Your Homepage.
>
>
>
>
Message 2
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Message 3
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I pull thru just to be safe. My 50 has almost no issues with oil out the exhaust
or lock. Wont even drool after a long time sitting on pull through. The (2)52s
I had were both pigs with oil.
I thought the 50 may be better for this. I do have the Les Crowder valve covers.maybe
they work better than I thought..
--------
You built and fly an RV.......BIG DEAL!!!!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=134404#134404
Message 4
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Might I inquire as to where I could procure vinyl
sticky letters to put the name of a pilot and co-pilot
on the side of a Yak-52?
Thanks,
John P. Graham
CubFlyer1940@Yahoo.com
Cell phone (847) 641-1330
Message 5
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Any local sign company will usually make anything you want.
Dennis
----- Original Message -----
From: "John Graham" <cubflyer1940@yahoo.com>
Sent: Friday, September 14, 2007 10:51 AM
Subject: Yak-List: Letters
>
> Might I inquire as to where I could procure vinyl
> sticky letters to put the name of a pilot and co-pilot
> on the side of a Yak-52?
>
> Thanks,
>
> John P. Graham
> CubFlyer1940@Yahoo.com
> Cell phone (847) 641-1330
>
>
>
>
>
>
>
>
Message 6
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Most, if not all, aircraft with M-14p have the quick drain. If you get a hydraulic
lock (drain was closed, etc) then the only/best remedy is to remove the plugs.
[quote="andy717(at)comcast.net"]Hey guys,
Future M14P pilot here -- wouldnt using a quick drain valve collecting from
cylinders 4, 5 and 6 be an alternative to pulling the plugs? Im not sure if the
Yak folks have/use these drains or not and Im just trying to verify if pulling
the plugs AND using a drain valve are necessary -
Thank you!
Andy
www.radialrocketman.com
Nashville, TN
andy717@comcast.net
On 9/13/07 7:49 PM, "HodgeJW@aol.com" wrote:
> Hey Guys,
>
> I was flying friends Yak 50 today (Tim G). I parked it for about 15 min. when
I went back to start it, I debated about whether to pull the prop thru or not.
I mean it was only 15 min. right? I only pull my 52 thru first flight of the
day. Well good thing I did, it was locked SOLID. Pulled the cowls, and bottom
plugs, and you wouldn't believe the amount of oil that came out. From now on,
if I walk away from it, I'll pull it thru. On another note, man will a 50 tumble!!!!
Damn, I love that plane. Here lately I've been flying some hotrods (Pitts
S2C Suk 29 Extra 300) but this 50 has some serious personality. I cant thank
Tim enough for letting me have access to this beast. Thanks man.
>
> Jay
>
>
>
> See what's new atblank">Make AOL Your Homepage.
>
>
> ail Forum -
> ">http://www.matronics.com/Navigator?Yak-List
> ; - NEW MATRONICS WEB FORUMS -
> matronics.com
>
>
>
> [b]
f on
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=134419#134419
Message 7
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Hi Andy,
I have an intake drain set up on my Yak 55M, and it prevents MOST hydro-lock
conditions, however, it is still possible to have enough oil in a cylinder
which, when cold won't come out through the relatively small diameter intake
drain and you end up needing to pull the plugs. In my case that has happened
twice in the past 4 years, but it does occasionally happen. Usually when I
haven't flown the plane for more than 2 weeks.
Another good reason to go fly.<VBG>
Scott
_____
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Andy Hawes
Sent: Friday, 14 September, 2007 09:22
Subject: Re: Yak-List: hydro lock
Hey guys,
Future M14P pilot here -- wouldn't using a quick drain valve collecting
from cylinders 4, 5 and 6 be an alternative to pulling the plugs? I'm not
sure if the Yak folks have/use these drains or not and I'm just trying to
verify if pulling the plugs AND using a drain valve are necessary -
Thank you!
Andy
www.radialrocketman.com
Nashville, TN
andy717@comcast.net
On 9/13/07 7:49 PM, "HodgeJW@aol.com" <HodgeJW@aol.com> wrote:
Hey Guys,
I was flying friends Yak 50 today (Tim G). I parked it for about 15 min.
when I went back to start it, I debated about whether to pull the prop thru
or not. I mean it was only 15 min. right? I only pull my 52 thru first
flight of the day. Well good thing I did, it was locked SOLID. Pulled the
cowls, and bottom plugs, and you wouldn't believe the amount of oil that
came out. From now on, if I walk away from it, I'll pull it thru. On another
note, man will a 50 tumble!!!! Damn, I love that plane. Here lately I've
been flying some hotrods (Pitts S2C Suk 29 Extra 300) but this 50 has some
serious personality. I cant thank Tim enough for letting me have access to
this beast. Thanks man.
Jay
_____
See what's new atblank">Make AOL Your Homepage.
ail Forum -
">http://www.matronics.com/Navigator?Yak-List
; - NEW MATRONICS WEB FORUMS -
matronics.com
Message 8
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On Sep 14, 2007, at 8:21 AM, Andy Hawes wrote:
> Hey guys,
>
> Future M14P pilot here -- wouldnt using a quick drain valve
> collecting from cylinders 4, 5 and 6 be an alternative to pulling
> the plugs? Im not sure if the Yak folks have/use these drains or
> not and Im just trying to verify if pulling the plugs AND using a
> drain valve are necessary -
The quick drains drain the intake riser tubes, not the cylinder. If
the intake valve is closed and oil goes past the rings into the
cylinder itself it would never make it to the quick drain. (As the
engine cools, air trapped in the cylinder decreases in volume and
forms a vacuum which can suck-in any oil sitting on top of the piston.)
So, the quick drains do not necessarily end up with all the oil at
the low point.
Some people like to turn the engine backwards when encountering
resistance/lock which then pushes oil from the cylinder to the intake
tube. There are two problems with this that may cause the engine to
hydraulic lock again upon starting:
1. The intake valve is not necessarily the lowest point in the
cylinder. Significant quantity of oil can still sit in the head. Best
case this raises compression. Worst case is that there might be
enough to cause a lock.
2. Oil that is pushed into the intake tube might not go out the quick
drain and instead remain in the intake tube. This oil can be sucked
back into the cylinder and cause a lock after the engine fires. If
there is enough this is just about guaranteed to bend/break a piston
or con-rod.
The ONLY 100% safe way to undo a hydraulic lock is to open in the
intake drains, pull the bottom plugs, and pull the engine through
until you can get no more oil from the plug holes or the intake drain
plug holes.
Given how much a broken engine can cost, it just isn't worth the time
saved by doing a half-assed job of clearing the bottom cylinders.
Also remember, a partial lock can bend a rod but leave no other
symptoms. Your engine then becomes a time-bomb.
--
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-Exupry
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 9
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I ordered mine from FastSigns on the web.
Scott
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of John Graham
Sent: Friday, 14 September, 2007 09:51
Subject: Yak-List: Letters
Might I inquire as to where I could procure vinyl
sticky letters to put the name of a pilot and co-pilot
on the side of a Yak-52?
Thanks,
John P. Graham
CubFlyer1940@Yahoo.com
Cell phone (847) 641-1330
Message 10
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In a message dated 9/14/07 9:37:29 AM, dsavarese@elmore.rr.com writes:
> Might I inquire as to where I could procure vinyl
> > sticky letters to put the name of a pilot and co-pilot
> > on the side of a Yak-52?
>
For my CJ, I found a print shop in San Francisco's Chinatown that did our
names in Chinese characters with the translation in English below. You'll, of
course, will want yours in Russian. Given the nature of print shop software these
days, you should have little difficulty. ...Blitz
**************************************
Message 11
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The local FastSigns store was about to do the letters so that the
Russian language "Furry Beast" was on the cowl of my 52. no issues.
DaBear
ByronMFox@aol.com wrote:
>
> In a message dated 9/14/07 9:37:29 AM, dsavarese@elmore.rr.com writes:
>
>
>> Might I inquire as to where I could procure vinyl
>> > sticky letters to put the name of a pilot and co-pilot
>> > on the side of a Yak-52?
>
> For my CJ, I found a print shop in San Francisco's Chinatown that did
> our names in Chinese characters with the translation in English below.
> You'll, of course, will want yours in Russian. Given the nature of
> print shop software these days, you should have little difficulty.
> ...Blitz
>
>
> **************************************
> *
>
>
> *
Message 12
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On my M14 powered CJ6 I had a situation a few years ago
with the #4 cyl.filling with oil, turned out to be the rings
migrating on the piston to the point that the ring gaps were
becoming aligned.
Reset the rings, no more problem.
Joe
Message 13
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Read Brian Lloyd's reply to this one for the best of advice, but let me
just add a few things:
1. I own a YAK-50 with intake drains, and due to a slightly leaky ball
check valve in my oil pump I get oil into the cylinders very quickly.
In a month of no flying I can actually lose up to 3 GALLONS of oil. If
I fly every two weeks or so, that never happens.
2. Each person has his or her own method for getting oil out of the
cylinders, Brian's method being the most safe obviously.
3. Probably the best method I saw of everyone listed was on Sergei
Boriak's SU-31 (before it crashed). Sergei was sick and tired of oil in
the cylinders and having to pull it through EVERY time.
A. He spent a huge amount of $$$ and had new pistons put in with gapless
rings. Much more was done here than I will list, but the rings made a
big difference.
B. The best trick was that he installed an OIL VALVE in the oil supply
line to the engine. Yes, there is an obvious danger in doing that. He
put in the typical safety steps with starter inhibitors, etc. etc. And
I am sure, a lot of people will say it is still too dangerous. So if
you feel that way, good for you. Keep yanking the plugs. On the flip
side, shutting off the oil supply pretty much puts an END to this
problem.
C. The last step was to install an engine sump line going to an
electrical pump. After landing and shutting the engine down, you run
the pump and the oil from the sump is pumped back into the main oil
tank.
You combine all three and you have a very dry engine, no oil on the
ground, and no need to pull it through, and no chance of hydrostatic
locks.
I'm going to go with the main tank oil shut off valve, with push pull
control from the cockpit.
Mark
N50YK
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Scott
Poehlmann
Sent: Friday, September 14, 2007 12:58
Subject: RE: Yak-List: hydro lock
Hi Andy,
I have an intake drain set up on my Yak 55M, and it prevents MOST
hydro-lock conditions, however, it is still possible to have enough oil
in a cylinder which, when cold won't come out through the relatively
small diameter intake drain and you end up needing to pull the plugs. In
my case that has happened twice in the past 4 years, but it does
occasionally happen. Usually when I haven't flown the plane for more
than 2 weeks.
Another good reason to go fly...<VBG>
Scott
________________________________
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Andy Hawes
Sent: Friday, 14 September, 2007 09:22
Subject: Re: Yak-List: hydro lock
Hey guys,
Future M14P pilot here -- wouldn't using a quick drain valve
collecting from cylinders 4, 5 and 6 be an alternative to pulling the
plugs? I'm not sure if the Yak folks have/use these drains or not and
I'm just trying to verify if pulling the plugs AND using a drain valve
are necessary -
Thank you!
Andy
www.radialrocketman.com
Nashville, TN
andy717@comcast.net
On 9/13/07 7:49 PM, "HodgeJW@aol.com" <HodgeJW@aol.com> wrote:
Hey Guys,
I was flying friends Yak 50 today (Tim G). I parked it for about 15 min.
when I went back to start it, I debated about whether to pull the prop
thru or not. I mean it was only 15 min. right? I only pull my 52 thru
first flight of the day. Well good thing I did, it was locked SOLID.
Pulled the cowls, and bottom plugs, and you wouldn't believe the amount
of oil that came out. From now on, if I walk away from it, I'll pull it
thru. On another note, man will a 50 tumble!!!! Damn, I love that plane.
Here lately I've been flying some hotrods (Pitts S2C Suk 29 Extra 300)
but this 50 has some serious personality. I cant thank Tim enough for
letting me have access to this beast. Thanks man.
Jay
________________________________
See what's new atblank">Make AOL Your Homepage.
ail Forum -
">http://www.matronics.com/Navigator?Yak-List
; - NEW MATRONICS WEB FORUMS -
matronics.com
Message 14
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I had them as well, and they work GREAT. I was just too worried about one of the
many oil hoses coming off in flight and me never being able to know it was
happening. In my way of thinking, the more oil hoses and clamps you can remove,
the better off you are.
I also had his original electrical sump pump. It worked great as well.
Mark
N50YK
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of flir47
Sent: Friday, September 14, 2007 11:48
Subject: Yak-List: Re: hydro lock
I pull thru just to be safe. My 50 has almost no issues with oil out the exhaust
or lock. WonEUR(tm)t even drool after a long time sitting on pull through. The
(2)52EUR(tm)s I had were both pigs with oil.
I thought the 50 may be better for this. I do have the Les Crowder valve coversEUR.maybe
they work better than I thoughtEUR..
--------
You built and fly an RV.......BIG DEAL!!!!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=134404#134404
Message 15
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Are you talking about 327 bulbs Doc? Or something different? Give me
a bulb reference number will you dude?
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Thursday, September 13, 2007 23:20
Subject: RE: Yak-List: Cockpit bulbs
Gill Hayes at M14. 928-681-4400. A small piece of trivia for the 50
drivers.
Did you know that the 28 v instrument panel bulbs use in fire trucks can
be used to replace the burnt out gear actuator lights? I found mine at
Auto Zone.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of John Graham
Sent: Thursday, September 13, 2007 8:51 PM
Subject: Yak-List: Cockpit bulbs
May I ask for a reference as to where I might procure some extra cockpit
bulbs?
Thanks,
John P. Graham
CubFlyer1940@Yahoo.com
Cell phone (847) 641-1330
Check out the hottest 2008 models today at Yahoo! Autos.
http://autos.yahoo.com/new_cars.html
Message 16
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Are you talking about 327 bulbs Doc? Or something different? Give me
a bulb reference number will you dude?
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Thursday, September 13, 2007 23:20
Subject: RE: Yak-List: Cockpit bulbs
Gill Hayes at M14. 928-681-4400. A small piece of trivia for the 50
drivers.
Did you know that the 28 v instrument panel bulbs use in fire trucks can
be used to replace the burnt out gear actuator lights? I found mine at
Auto Zone.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of John Graham
Sent: Thursday, September 13, 2007 8:51 PM
Subject: Yak-List: Cockpit bulbs
May I ask for a reference as to where I might procure some extra cockpit
bulbs?
Thanks,
John P. Graham
CubFlyer1940@Yahoo.com
Cell phone (847) 641-1330
Check out the hottest 2008 models today at Yahoo! Autos.
http://autos.yahoo.com/new_cars.html
Message 17
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| Subject: | Re: MF'ing air system! Yak-50 |
Uh Doc... I think highly of you my friend, but with all due respect, I
think the gas from the beans you ate last night might be influencing
your line of thinking here. Bernoulli's Principle does not apply in this
case. There is no "Venturi" no matter how hard you try to make it look
that way, and even if there was, the rules that impact the question do
not come from Mr. Bernoulli. Instead you might want to remember Mr.
Boyle. To wit:
Quote:
The mathematical equation for Boyle's law is:
where:
p denotes the pressure of the system.
V is the volume of the gas.
k is a constant value representative of the pressure and volume of the
system.
So long as temperature remains constant at the same value the same
amount of energy given to the system persists throughout its operation
and therefore, theoretically, the value of k will remain constant.
However, due to the derivation of pressure as perpendicular applied
force and the probabilistic likelihood of collisions with other
particles through collision theory, the application of force to a
surface may not be infinitely constant for such values of k, but will
have a limit when differentiating such values over a given time.
Forcing the volume V of the fixed quantity of gas to increase, keeping
the gas at the initially measured temperature, the pressure p must
decrease proportionally. Conversely, reducing the volume of the gas
increases the pressure.
Boyle's law is commonly used to predict the result of introducing a
change, in volume and pressure only, to the initial state of a fixed
quantity of gas. The "before" and "after" volumes and pressures of the
fixed amount of gas, where the "before" and "after" temperatures are the
same (heating or cooling will be required to meet this condition), are
related by the equation:
p1V1 = p2V2
Boyle's law, Charles's Law, and Gay-Lussac's Law form the combined gas
law. The three gas laws in combination with Avogadro's law can be
generalized by the ideal gas law.
END QUOTE
So yes Tim... ANY line that you put between the tank and the original
line that is smaller than the original could CLEARLY cause this to
happen. In addition you have added LENGTH (I think?) If you have, then
your line from your new tank to where you hook it to the old line (did
you run it the whole way?) to be safe should have been even LARGER than
what was original.
Sorry to disagree with you Doc, but ... You must have been breathing
some of the NOS.....
Mark Bitterlich
N50YK
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Thursday, September 13, 2007 22:44
Subject: RE: Yak-List: Re: MF'ing air system! Yak-50
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.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Tim Gagnon
Sent: Thursday, September 13, 2007 7:03 PM
Subject: Yak-List: Re: MF'ing air system! Yak-50
Let me ask this..would a smaller diameter line than original cause
enough a restriction to explain the problems I am having.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=134285#134285
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| Subject: | Re: MF'ing air system! Yak-50 |
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
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Brian Lloyd
Sent: Thursday, September 13, 2007 22:08
Subject: Re: Yak-List: Re: MF'ing air system! Yak-50
On Sep 13, 2007, at 5:03 PM, Tim Gagnon wrote:
>
> Let me ask this..would a smaller diameter line than original cause
> enough a restriction to explain the problems I am having.
Probably not. It would take a restriction that takes the line down to something
like a pinhole to really cause a problem. OTOH, if you made a new flex line you
might have cut a flap in the rubber interior that could block the line. The
flap of rubber could potentially function as a one-way valve.
--
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-Exupry
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 19
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They are the equivalent for the 327. Unfortunately, I am not at the hanger
now so I can't get you the exact number. I will have to pull a bulb in the
am and get it for you.
doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G
CIV Det Cherry Point, MALS-14 64E
Sent: Friday, September 14, 2007 4:26 PM
Subject: RE: Yak-List: Cockpit bulbs
MALS-14 64E" <mark.bitterlich@navy.mil>
Are you talking about 327 bulbs Doc? Or something different? Give me
a bulb reference number will you dude?
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Thursday, September 13, 2007 23:20
Subject: RE: Yak-List: Cockpit bulbs
Gill Hayes at M14. 928-681-4400. A small piece of trivia for the 50
drivers.
Did you know that the 28 v instrument panel bulbs use in fire trucks can
be used to replace the burnt out gear actuator lights? I found mine at
Auto Zone.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of John Graham
Sent: Thursday, September 13, 2007 8:51 PM
Subject: Yak-List: Cockpit bulbs
May I ask for a reference as to where I might procure some extra cockpit
bulbs?
Thanks,
John P. Graham
CubFlyer1940@Yahoo.com
Cell phone (847) 641-1330
Check out the hottest 2008 models today at Yahoo! Autos.
http://autos.yahoo.com/new_cars.html
Message 20
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| Subject: | Re: Cockpit bulbs |
I use #327's and remove the internal material and glass bulb from the old
Russian bulb and slide the 327 into the new Russian bulb "sleeve". Insert
this into the lamp fixture. Works perfect and has for many years on many
airplanes.
Dennis
----- Original Message -----
From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E"
<mark.bitterlich@navy.mil>
Sent: Friday, September 14, 2007 4:26 PM
Subject: RE: Yak-List: Cockpit bulbs
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Are you talking about 327 bulbs Doc? Or something different? Give me
> a bulb reference number will you dude?
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: Thursday, September 13, 2007 23:20
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Cockpit bulbs
>
>
> Gill Hayes at M14. 928-681-4400. A small piece of trivia for the 50
> drivers.
> Did you know that the 28 v instrument panel bulbs use in fire trucks can
> be used to replace the burnt out gear actuator lights? I found mine at
> Auto Zone.
> Doc
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of John Graham
> Sent: Thursday, September 13, 2007 8:51 PM
> To: Yak list
> Subject: Yak-List: Cockpit bulbs
>
>
> May I ask for a reference as to where I might procure some extra cockpit
> bulbs?
>
> Thanks,
>
> John P. Graham
> CubFlyer1940@Yahoo.com
> Cell phone (847) 641-1330
>
>
> Check out the hottest 2008 models today at Yahoo! Autos.
> http://autos.yahoo.com/new_cars.html
>
>
>
Message 21
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Thought so.
If anyone really needs 327's let me know.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis
Savarese
Sent: Friday, September 14, 2007 18:26
Subject: Re: Yak-List: Cockpit bulbs
--> <dsavarese@elmore.rr.com>
I use #327's and remove the internal material and glass bulb from the
old Russian bulb and slide the 327 into the new Russian bulb "sleeve".
Insert this into the lamp fixture. Works perfect and has for many years
on many airplanes.
Dennis
----- Original Message -----
From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E"
<mark.bitterlich@navy.mil>
Sent: Friday, September 14, 2007 4:26 PM
Subject: RE: Yak-List: Cockpit bulbs
Point,
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Are you talking about 327 bulbs Doc? Or something different? Give
me
> a bulb reference number will you dude?
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: Thursday, September 13, 2007 23:20
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Cockpit bulbs
>
<viperdoc@mindspring.com>
>
> Gill Hayes at M14. 928-681-4400. A small piece of trivia for the 50
> drivers.
> Did you know that the 28 v instrument panel bulbs use in fire trucks
can
> be used to replace the burnt out gear actuator lights? I found mine at
> Auto Zone.
> Doc
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of John Graham
> Sent: Thursday, September 13, 2007 8:51 PM
> To: Yak list
> Subject: Yak-List: Cockpit bulbs
>
>
> May I ask for a reference as to where I might procure some extra
cockpit
> bulbs?
>
> Thanks,
>
> John P. Graham
> CubFlyer1940@Yahoo.com
> Cell phone (847) 641-1330
>
>
> Check out the hottest 2008 models today at Yahoo! Autos.
> http://autos.yahoo.com/new_cars.html
>
>
>
Message 22
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| Subject: | Re: MF'ing air system! Yak-50 |
Mark,
You are absolutely correct in your reference to Boyle's law, Charles Law,
and Avagadro's law as they reference fluids at rest. In this case you are
looking at a fluid in motion. The term "fluid" applies to both a liquid and
a gas. A tube (line) having a constriction section between a larger diameter
inlet and the outlet section is called a "venture tube". In this case, a
smaller diameter tube in between two larger diameter tubes (lines). Whereas
point a is the entry point and point b is the exit point of the fluid as it
flows from the larger diameter tube to the end of the smaller diameter tube
you have introduced a constriction. So basically, you have flow thru a
constriction. In other words when you have a fluid flowing through a pipe of
varying cross-sectional area there can be no accumulation between a and b,
provided that fluid is incompressible. Hence the mass of the fluid passing
through the cross section A1 with speed v1 must equal the mass passing in
the same time (t) through cross section A2 with speed v2, where rho (p) is
the density of the fluid (since my computer does not do the Greek alphabet,
rho is p in this case).
A1v1pt = A2v2pt
So since A1v1 = A2v2, it follows that the speed of flow in a pipe is greater
in those regions where there is a constriction in the cross-section area
(A). [The smaller diameter tube (line)]. Furthermore, the speed is greater
at point b than at a, the fluid experiences an acceleration between a and b.
This requires an accelerating force. This accelerating force can be present
only if the pressure at point a is greater than the pressure a point b. So
in a steady flow of a fluid, the pressure is least where the speed is
greatest. So when a gas or a liquid enters the narrow part of the tube (the
constriction), it speeds up in the narrow part of the tube (line) and there
is a corresponding drop in pressure.
Bernoulli's theorem looks at the relationship between the pressure at any
point in a fluid and velocity of the fluid at that point. The movement of
the particles of fluid in a linear line through the tube is defined as a
streamline. Bernoulli's theorem states that at any two points along a
streamline the sum of the pressure, the kinetic energy per unit volume, and
the potential energy per unit volume has the same value.
Now the mathematical expression of that is as follows:
P1 +1/2pv1 squared + pgh1 = P2 = 1/2 pv2 squared +pgh2.
P = pressure
P = rho (density)
V = volumne
g = gravity
h = head [in a pressure- depth relation the depth (h) is frequently called
the "head"]. In a Pressure head, the h is equal to P/pg {p = rho (density of
the fluid) and g = gravity}
So applying Bernoulli's theorem to the case of a horizontal pipe that has a
constriction you can determine the rate of flow of the fluid passing through
if you know the pressure of the fluid and the area of the pipe at the widest
part or at the narrowest part by simply rearranging the equation for the
unknown.
So if you want to know P2 (the exit pressure for the narrow segment)
rearrange the equation to read as:
P2 = P1 + pg(h1-h2) +p/2(v1 squared - v2 squared).
Now having said all that, Bernoulli's theorem has many applications. The
carb is an atomizer, the filter pump is an aspirator, and our wing, the air
foil. Last but not least is the 2 year old child lying on the stretcher in
ER unable to breath due to bacterial epiglotitis obstructing the larynx
caused by Strep. In this case, the orifice (larynx) is narrowed by a
edematous epiglottis impeding flow of air. By manipulating the viscosity of
the gas by adding helium to the O2, we can support that child (maintain the
%Sat = 02 saturation) long enough to get them to the OR to intubate them. I
did not discuss viscosity as it affects the flow of a fluid through a
constriction did I?
For a further explaination, I refer you to College Physics by , Weber,
White, Manning and Waygand, Chapter 13, "Fluids in Motion", pp.241-255. Well
you do not have to go to my specific textbook, anyone that discusses fluid
mechanics can clarify this.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G
CIV Det Cherry Point, MALS-14 64E
Sent: Friday, September 14, 2007 4:45 PM
Subject: UOTERE: Yak-List: Re: MF'ing air system! Yak-50
MALS-14 64E" <mark.bitterlich@navy.mil>
Uh Doc... I think highly of you my friend, but with all due respect, I
think the gas from the beans you ate last night might be influencing
your line of thinking here. Bernoulli's Principle does not apply in this
case. There is no "Venturi" no matter how hard you try to make it look
that way, and even if there was, the rules that impact the question do
not come from Mr. Bernoulli. Instead you might want to remember Mr.
Boyle. To wit:
Quote:
The mathematical equation for Boyle's law is:
where:
p denotes the pressure of the system.
V is the volume of the gas.
k is a constant value representative of the pressure and volume of the
system.
So long as temperature remains constant at the same value the same
amount of energy given to the system persists throughout its operation
and therefore, theoretically, the value of k will remain constant.
However, due to the derivation of pressure as perpendicular applied
force and the probabilistic likelihood of collisions with other
particles through collision theory, the application of force to a
surface may not be infinitely constant for such values of k, but will
have a limit when differentiating such values over a given time.
Forcing the volume V of the fixed quantity of gas to increase, keeping
the gas at the initially measured temperature, the pressure p must
decrease proportionally. Conversely, reducing the volume of the gas
increases the pressure.
Boyle's law is commonly used to predict the result of introducing a
change, in volume and pressure only, to the initial state of a fixed
quantity of gas. The "before" and "after" volumes and pressures of the
fixed amount of gas, where the "before" and "after" temperatures are the
same (heating or cooling will be required to meet this condition), are
related by the equation:
p1V1 = p2V2
Boyle's law, Charles's Law, and Gay-Lussac's Law form the combined gas
law. The three gas laws in combination with Avogadro's law can be
generalized by the ideal gas law.
END QUOTE
So yes Tim... ANY line that you put between the tank and the original
line that is smaller than the original could CLEARLY cause this to
happen. In addition you have added LENGTH (I think?) If you have, then
your line from your new tank to where you hook it to the old line (did
you run it the whole way?) to be safe should have been even LARGER than
what was original.
Sorry to disagree with you Doc, but ... You must have been breathing
some of the NOS.....
Mark Bitterlich
N50YK
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Thursday, September 13, 2007 22:44
Subject: RE: Yak-List: Re: MF'ing air system! Yak-50
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.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Tim Gagnon
Sent: Thursday, September 13, 2007 7:03 PM
Subject: Yak-List: Re: MF'ing air system! Yak-50
Let me ask this..would a smaller diameter line than original cause
enough a restriction to explain the problems I am having.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=134285#134285
Message 23
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Dennis,
That technique works on my 52 but not my 78 50. I think it will work on the
later models. My bulbs can actually be dimmed or brightened by rotating the
bulb housing (lens). That is not the case with the 52.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
Sent: Friday, September 14, 2007 5:26 PM
Subject: Re: Yak-List: Cockpit bulbs
<dsavarese@elmore.rr.com>
I use #327's and remove the internal material and glass bulb from the old
Russian bulb and slide the 327 into the new Russian bulb "sleeve". Insert
this into the lamp fixture. Works perfect and has for many years on many
airplanes.
Dennis
----- Original Message -----
From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E"
<mark.bitterlich@navy.mil>
Sent: Friday, September 14, 2007 4:26 PM
Subject: RE: Yak-List: Cockpit bulbs
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Are you talking about 327 bulbs Doc? Or something different? Give me
> a bulb reference number will you dude?
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: Thursday, September 13, 2007 23:20
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Cockpit bulbs
>
>
> Gill Hayes at M14. 928-681-4400. A small piece of trivia for the 50
> drivers.
> Did you know that the 28 v instrument panel bulbs use in fire trucks can
> be used to replace the burnt out gear actuator lights? I found mine at
> Auto Zone.
> Doc
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of John Graham
> Sent: Thursday, September 13, 2007 8:51 PM
> To: Yak list
> Subject: Yak-List: Cockpit bulbs
>
>
> May I ask for a reference as to where I might procure some extra cockpit
> bulbs?
>
> Thanks,
>
> John P. Graham
> CubFlyer1940@Yahoo.com
> Cell phone (847) 641-1330
>
>
> Check out the hottest 2008 models today at Yahoo! Autos.
> http://autos.yahoo.com/new_cars.html
>
>
>
Message 24
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Right on Brian.
Good to have you back.
Walt
----- Original Message -----
From: "Brian Lloyd" <brian-1927@lloyd.com>
Sent: Friday, September 14, 2007 10:03 AM
Subject: Re: Yak-List: hydro lock
>
>
> On Sep 14, 2007, at 8:21 AM, Andy Hawes wrote:
>
>> Hey guys,
>>
>> Future M14P pilot here -- wouldnt using a quick drain valve
>> collecting from cylinders 4, 5 and 6 be an alternative to pulling the
>> plugs? Im not sure if the Yak folks have/use these drains or not and Im
>> just trying to verify if pulling the plugs AND using a drain valve are
>> necessary -
>
> The quick drains drain the intake riser tubes, not the cylinder. If the
> intake valve is closed and oil goes past the rings into the cylinder
> itself it would never make it to the quick drain. (As the engine cools,
> air trapped in the cylinder decreases in volume and forms a vacuum which
> can suck-in any oil sitting on top of the piston.)
>
> So, the quick drains do not necessarily end up with all the oil at the
> low point.
>
> Some people like to turn the engine backwards when encountering
> resistance/lock which then pushes oil from the cylinder to the intake
> tube. There are two problems with this that may cause the engine to
> hydraulic lock again upon starting:
>
> 1. The intake valve is not necessarily the lowest point in the cylinder.
> Significant quantity of oil can still sit in the head. Best case this
> raises compression. Worst case is that there might be enough to cause a
> lock.
>
> 2. Oil that is pushed into the intake tube might not go out the quick
> drain and instead remain in the intake tube. This oil can be sucked back
> into the cylinder and cause a lock after the engine fires. If there is
> enough this is just about guaranteed to bend/break a piston or con-rod.
>
> The ONLY 100% safe way to undo a hydraulic lock is to open in the intake
> drains, pull the bottom plugs, and pull the engine through until you can
> get no more oil from the plug holes or the intake drain plug holes.
>
> Given how much a broken engine can cost, it just isn't worth the time
> saved by doing a half-assed job of clearing the bottom cylinders. Also
> remember, a partial lock can bend a rod but leave no other symptoms. Your
> engine then becomes a time-bomb.
>
>
> --
> 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-Exupry
>
> PGP key ID: 12095C52A32A1B6C
> PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
>
>
>
Message 25
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| Subject: | Re: MF'ing air system! Yak-50 |
On Sep 14, 2007, at 7:19 PM, viperdoc wrote:
>
> Mark,
> You are absolutely correct in your reference to Boyle's law,
> Charles Law,
> and Avagadro's law as they reference fluids at rest. In this case
> you are
> looking at a fluid in motion. The term "fluid" applies to both a
> liquid and
> a gas. A tube (line) having a constriction section between a larger
> diameter
> inlet and the outlet section ...
lots of stuff removed
> Now having said all that, Bernoulli's theorem has many
> applications. The
> carb is an atomizer, the filter pump is an aspirator, and our wing,
> the air
> foil. Last but not least ...
is a lot of stuff that really doesn't have any application.
Doc, sometimes a restriction is just a restriction.
(With apologies to Dr. Sigmund Freud.)
--
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-Exupry
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 26
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On Sep 14, 2007, at 9:07 PM, Walter Lannon wrote:
> <wlannon@cablerocket.com>
>
> Right on Brian.
> Good to have you back.
Thanks Walt.
--
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-Exupry
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 27
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| Subject: | Lone Star Red Star, May 2008 |
I have started pre-planning for a large fly-in and formation clinic at
Lancaster, TX (KLNC) in May of 2008.
The Cold War Air Museum at Lancaster has agreed to host the event and the
airport manager, a former Navy Air Boss, has said that he'll be giving
"whatever it takes" support to us.
Jon
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