Today's Message Index:
----------------------
1. 04:41 AM - Re: Yak-52 intercom (A. Dennis Savarese)
2. 04:44 AM - Re: how does the starting coil work exactly (A. Dennis Savarese)
3. 04:45 AM - Re: Yak-52 intercom (A. Dennis Savarese)
4. 05:01 AM - Re: Yak-52 intercom (A. Dennis Savarese)
5. 06:09 AM - Re: how does the starting coil work exactly (Jan Mevis)
6. 06:13 AM - YAK 50 Structural drawings (Roger Kemp)
7. 07:46 AM - Re: how does the starting coil work exactly (Scott Poehlmann)
8. 08:00 AM - Re: YAK 50 Structural drawings (A. Dennis Savarese)
9. 08:02 AM - Re: how does the starting coil work exactly (A. Dennis Savarese)
10. 09:26 AM - Re: YAK 50 Structural drawings (Doug Sapp)
11. 09:34 AM - Re: how does the starting coil work exactly (ggg6@att.net)
12. 11:22 AM - Re: YAK 50 Structural drawings (Roger Kemp)
13. 12:03 PM - Re: YAK 50 Structural drawings (Tim Gagnon)
14. 12:13 PM - Re: how does the starting coil work exactly (Jan Mevis)
15. 02:20 PM - Re: Re: YAK 50 Structural drawings (Roger Kemp)
16. 03:43 PM - Re: YAK 50 Structural drawings (A. Dennis Savarese)
17. 03:48 PM - Yak 50 and 52 Airfoils (Re: YAK 50 Structural drawings) (A. Dennis Savarese)
18. 05:30 PM - Prop overspeed (Roger Kemp)
19. 05:40 PM - Re: Yak 50 and 52 Airfoils (Re: YAK 50 Structural drawings) (Roger Kemp)
20. 06:21 PM - Re: Yak-52 intercom (Karl Ahamer)
Message 1
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| Subject: | Re: Yak-52 intercom |
The box is located behind the front seat, under the center section
between the cockpits on the left side (looking from the rear cockpit
forward). It has a large cannon plug on it.
Dennis
----- Original Message -----
From: Karl Ahamer
To: yak-list@matronics.com
Sent: Sunday, December 17, 2006 12:53 AM
Subject: Yak-List: Yak-52 intercom
Hi everyone,
We have a YAK-52 in our club which has developed an intercom
problem.As soon us one switches the intercom on, the circuit
breaker/switch cuts out.
Where is the intercom located in the YAK? Is it part of the radio?
Thanks
Karl Ahamer
Australia
--
16/12/2006
Message 2
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| Subject: | Re: how does the starting coil work exactly |
The starting coil is exactly the same for the 50, 52 and the CJ6.
Parts are interchangeable. The spark is continuous as long as the
start button is depressed.
Dennis
----- Original Message -----
From: Jan Mevis
To: yak-list@matronics.com
Sent: Sunday, December 17, 2006 4:04 AM
Subject: Yak-List: how does the starting coil work exactly
Hi all,
This has been intriguing to me, so I try to figure out what happens
exactly. Is the following reasoning correct, or am I missing it
completely?
When pushing the start-button, the magnetos are still off. The
high-tension starting coil gets current from the battery to its primary
winding, and the changing flux causes a high voltage on the secondary
winding. The left-hand magneto (front plugs) has a special connection
for this coil, and this high tension is immediately conducted to the
proper spark plug via the distributor on the left hand magneto.
If I understand this well, you get only one spark from the start coil,
and you have to switch on the magneto's immediately after hearing one
"explosion"?
I always thought that there was a sort of "shower of sparks" generator
?
Is this system different on the Yak 50 and 52, or even compared with
the CJ's ?
Jan Mevis
Yak50 RA2005K
Message 3
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| Subject: | Re: Yak-52 intercom |
The control panel is remote from the actual intercom unit itself.
Dennis
----- Original Message -----
From: Roger Kemp
To: yak-list@matronics.com
Sent: Sunday, December 17, 2006 6:47 AM
Subject: RE: Yak-List: Yak-52 intercom
Karl,
The unit is located above the Russian Radio control panel on the right
side of your instrument panel. I has two white knobs on it. It is held
in the instrument panel by 4 screws. I do not have a schematic for the
intercom. Maybe someone else on the list does. If you are kicking off
the circuit breaker, it sounds like you have a short in the wiring
harness which a whole lot of fun to chase down.
Doc
----- Original Message -----
From: Karl Ahamer
To: yak-list@matronics.com
Sent: 12/17/2006 1:03:37 AM
Subject: Yak-List: Yak-52 intercom
[LashBack]
Hi everyone,
We have a YAK-52 in our club which has developed an intercom
problem.As soon us one switches the intercom on, the circuit
breaker/switch cuts out.
Where is the intercom located in the YAK? Is it part of the radio?
Thanks
Karl Ahamer
Australia
--
16/12/2006
ns page,
Message 4
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| Subject: | Re: Yak-52 intercom |
Karl,
The attached should help.
Dennis
----- Original Message -----
From: Karl Ahamer
To: yak-list@matronics.com
Sent: Sunday, December 17, 2006 12:53 AM
Subject: Yak-List: Yak-52 intercom
Hi everyone,
We have a YAK-52 in our club which has developed an intercom
problem.As soon us one switches the intercom on, the circuit
breaker/switch cuts out.
Where is the intercom located in the YAK? Is it part of the radio?
Thanks
Karl Ahamer
Australia
--
16/12/2006
Message 5
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| Subject: | how does the starting coil work exactly |
Then what makes the current in the primary winding fluctuate? If the current
is DC constant, there's no flux change, and no high tension on the
secondary. I suppose that there has to be some kind of mechanically fast
interrupting device in the circuit of the primary winding of the booster
coil ?
Jan
_____
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
Sent: maandag 18 december 2006 13:44
Subject: Re: Yak-List: how does the starting coil work exactly
The starting coil is exactly the same for the 50, 52 and the CJ6. Parts
are interchangeable. The spark is continuous as long as the start button
is depressed.
Dennis
----- Original Message -----
From: Jan Mevis <mailto:jan.mevis@informavia.be>
Sent: Sunday, December 17, 2006 4:04 AM
Subject: Yak-List: how does the starting coil work exactly
Hi all,
This has been intriguing to me, so I try to figure out what happens exactly.
Is the following reasoning correct, or am I missing it completely?
When pushing the start-button, the magnetos are still off. The high-tension
starting coil gets current from the battery to its primary winding, and the
changing flux causes a high voltage on the secondary winding. The left-hand
magneto (front plugs) has a special connection for this coil, and this high
tension is immediately conducted to the proper spark plug via the
distributor on the left hand magneto.
If I understand this well, you get only one spark from the start coil, and
you have to switch on the magneto's immediately after hearing one
"explosion"?
I always thought that there was a sort of "shower of sparks" generator ?
Is this system different on the Yak 50 and 52, or even compared with the
CJ's ?
Jan Mevis
Yak50 RA2005K
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.kitlog.com">www.kitlog.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.matronics.com/contribution">http://www.matronics.com/chref
"http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Navig
ator?Yak-List
Message 6
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| Subject: | YAK 50 Structural drawings |
Along the same lines, does anyone have the structural plans for the YAK-50. Particularly
the wings. I am trying to route wiring in for strobe/nav lights.I also
want to build a new set in the near future looking at altering the way the
gear retract along with maybe speed brakes. Are they out there anywhere?
Doc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
Message 7
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| Subject: | how does the starting coil work exactly |
Hi All,
While we're on the topic of the vibrator/starter coil, does anyone have any
idea of the resistance load for the primary side of the coil and for the
microswitch on the start valve? I have a Yak 55M which I am trying to
convert to a solenoid start valve (the 55's use a start valve with a
microswitch mounted on the instrument panel, like the Sukhoi's use; which of
course means that air needs to get routed from the tank on the firewall,
back through the cockpit and ultimately back through the firewall to the
distributor. More distance & stuff means more fittings. More fittings = more
places to leak.), and need to figure out the best way to wire the
microswitch and the solenoid switch into the system.
Thanks,
Scott Poehlmann
Yak 55M N155YK
_____
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Monday, 18 December, 2006 07:07
Subject: RE: Yak-List: how does the starting coil work exactly
Then what makes the current in the primary winding fluctuate? If the current
is DC constant, there's no flux change, and no high tension on the
secondary. I suppose that there has to be some kind of mechanically fast
interrupting device in the circuit of the primary winding of the booster
coil ?
Jan
_____
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
Sent: maandag 18 december 2006 13:44
Subject: Re: Yak-List: how does the starting coil work exactly
The starting coil is exactly the same for the 50, 52 and the CJ6. Parts
are interchangeable. The spark is continuous as long as the start button
is depressed.
Dennis
----- Original Message -----
From: Jan Mevis <mailto:jan.mevis@informavia.be>
Sent: Sunday, December 17, 2006 4:04 AM
Subject: Yak-List: how does the starting coil work exactly
Hi all,
This has been intriguing to me, so I try to figure out what happens exactly.
Is the following reasoning correct, or am I missing it completely?
When pushing the start-button, the magnetos are still off. The high-tension
starting coil gets current from the battery to its primary winding, and the
changing flux causes a high voltage on the secondary winding. The left-hand
magneto (front plugs) has a special connection for this coil, and this high
tension is immediately conducted to the proper spark plug via the
distributor on the left hand magneto.
If I understand this well, you get only one spark from the start coil, and
you have to switch on the magneto's immediately after hearing one
"explosion"?
I always thought that there was a sort of "shower of sparks" generator ?
Is this system different on the Yak 50 and 52, or even compared with the
CJ's ?
Jan Mevis
Yak50 RA2005K
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.kitlog.com">www.kitlog.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.matronics.com/contribution">http://www.matronics.com/chref
"http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Navig
ator?Yak-List
www.aeroelectric.com
<http://www.kitlog.com> www.kitlog.com
http://www.matronics.com/Navigator?Yak-List
<http://www.aeroelectric.com> www.aeroelectric.com
Message 8
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| Subject: | Re: YAK 50 Structural drawings |
Why not order a set of 52 TD wings and adapt them to the 50?
Dennis
----- Original Message -----
From: Roger Kemp
To: yak-list
Sent: Monday, December 18, 2006 8:11 AM
Subject: Yak-List: YAK 50 Structural drawings
Along the same lines, does anyone have the structural plans for the
YAK-50. Particularly the wings. I am trying to route wiring in for
strobe/nav lights.I also want to build a new set in the near future
looking at altering the way the gear retract along with maybe speed
brakes. Are they out there anywhere?
Doc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
Message 9
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| Subject: | Re: how does the starting coil work exactly |
There is a set of points.
Dennis
----- Original Message -----
From: Jan Mevis
To: yak-list@matronics.com
Sent: Monday, December 18, 2006 8:07 AM
Subject: RE: Yak-List: how does the starting coil work exactly
Then what makes the current in the primary winding fluctuate? If the
current is DC constant, there's no flux change, and no high tension on
the secondary. I suppose that there has to be some kind of mechanically
fast interrupting device in the circuit of the primary winding of the
booster coil ?
Jan
-------------------------------------------------------------------------
-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis
Savarese
Sent: maandag 18 december 2006 13:44
To: yak-list@matronics.com
Subject: Re: Yak-List: =ashBack] how does the starting coil work
exactly
The starting coil is exactly the same for the 50, 52 and the CJ6.
Parts are interchangeable. The spark is continuous as long as the
start button is depressed.
Dennis
----- Original Message -----
From: Jan Mevis
To: yak-list@matronics.com
Sent: Sunday, December 17, 2006 4:04 AM
Subject: Yak-List: how does the starting coil work exactly
Hi all,
This has been intriguing to me, so I try to figure out what happens
exactly. Is the following reasoning correct, or am I missing it
completely?
When pushing the start-button, the magnetos are still off. The
high-tension starting coil gets current from the battery to its primary
winding, and the changing flux causes a high voltage on the secondary
winding. The left-hand magneto (front plugs) has a special connection
for this coil, and this high tension is immediately conducted to the
proper spark plug via the distributor on the left hand magneto.
If I understand this well, you get only one spark from the start
coil, and you have to switch on the magneto's immediately after hearing
one "explosion"?
I always thought that there was a sort of "shower of sparks"
generator ?
Is this system different on the Yak 50 and 52, or even compared with
the CJ's ?
Jan Mevis
Yak50 RA2005K
href="http://www.aeroelectric.com">www.aeroelectric.comhref="http://w
ww.buildersbooks.com">www.buildersbooks.comhref="http://www.kitlog.com"
>www.kitlog.comhref="http://www.homebuilthelp.com">www.homebuilthelp.co
mhref="http://www.matronics.com/contribution">http://www.matronics.com/
chref="http://www.matronics.com/Navigator?Yak-List">http://www.matronic
s.com/Navigator?Yak-List
www.aeroelectric.comwww.kitlog.comhttp://www.matronics.com/Navigator?Yak-
List
Message 10
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| Subject: | Re: YAK 50 Structural drawings |
Doc,
I think I can get them out of Russia, but they will not be cheap. The
plans for the Yak 18 were 5K.
If you serious let me know off line.
Always Yakin,
Doug Sapp
Roger Kemp wrote:
> Along the same lines, does anyone have the structural plans for the
> YAK-50. Particularly the wings. I am trying to route wiring in for
> strobe/nav lights.I also want to build a new set in the near future
> looking at altering the way the gear retract along with maybe speed
> brakes. Are they out there anywhere?
> Doc
>
>
> Roger "Doc" Kemp
> viperdoc@mindspring.com <mailto:viperdoc@mindspring.com>
> Aint no sound like a Radial
>
>
>
>*
>
>
>*
>
Message 11
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| Subject: | Re: how does the starting coil work exactly |
These things operate on the same principal as the old Spark Vibirator Coils in
the old Model "T" Fords..
Remember the old wooden box with the points on the top???
Gary Gabbard
-------------- Original message from "A. Dennis Savarese" <dsavarese@elmore.rr.com>:
--------------
There is a set of points.
Dennis
----- Original Message -----
From: Jan Mevis
Sent: Monday, December 18, 2006 8:07 AM
Subject: RE: Yak-List: how does the starting coil work exactly
Then what makes the current in the primary winding fluctuate? If the current is
DC constant, theres no flux change, and no high tension on the secondary. I suppose
that there has to be some kind of mechanically fast interrupting device
in the circuit of the primary winding of the booster coil ?
Jan
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
Sent: maandag 18 december 2006 13:44
Subject: Re: Yak-List: =ashBack] how does the starting coil work exactly
The starting coil is exactly the same for the 50, 52 and the CJ6. Parts are interchangeable.
The spark is continuous as long as the start button is depressed.
Dennis
----- Original Message -----
From: Jan Mevis
Sent: Sunday, December 17, 2006 4:04 AM
Subject: Yak-List: how does the starting coil work exactly
Hi all,
This has been intriguing to me, so I try to figure out what happens exactly. Is
the following reasoning correct, or am I missing it completely?
When pushing the start-button, the magnetos are still off. The high-tension starting
coil gets current from the battery to its primary winding, and the changing
flux causes a high voltage on the secondary winding. The left-hand magneto
(front plugs) has a special connection for this coil, and this high tension is
immediately conducted to the proper spark plug via the distributor on the left
hand magneto.
If I understand this well, you get only one spark from the start coil, and you
have to switch on the magnetos immediately after hearing one explosion?
I always thought that there was a sort of shower of sparks generator ?
Is this system different on the Yak 50 and 52, or even compared with the CJs ?
Jan Mevis
Yak50 RA2005K
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.kitlog.com">www.kitlog.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Navigator?Yak-List
www.aeroelectric.com
www.kitlog.com
http://www.matronics.com/Navigator?Yak-List
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.kitlog.com">www.kitlog.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Navigator?Yak-List
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<P>These things operate on the same principal as the old Spark Vibirator Coils
in the old Model "T" Fords.. </P>
<P> </P>
<P> Remember the old wooden box with the points on the top??? </P>
<P> </P>
<P>Gary Gabbard<BR></P>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px
solid">-------------- Original message from "A. Dennis Savarese" <dsavarese@elmore.rr.com>:
-------------- <BR><BR>
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<DIV><FONT size=2>There is a set of points.</FONT></DIV>
<DIV><FONT size=2>Dennis</FONT></DIV>
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5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=jan.mevis@informavia.be href="mailto:jan.mevis@informavia.be">Jan Mevis</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=yak-list@matronics.com href="mailto:yak-list@matronics.com">yak-list@matronics.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, December 18, 2006 8:07 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Yak-List: how does the starting
coil work exactly</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt;
COLOR: navy; FONT-FAMILY: Arial">Then what makes the current in the primary
winding fluctuate? If the current is DC constant, theres no flux change, and
no high tension on the secondary. I suppose that there has to be some kind of
mechanically fast interrupting device in the circuit of the primary winding
of the booster coil ?<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office"
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<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> <A href="mailto:owner-yak-list-server@matronics.com">owner-yak-list-server@matronics.com</A> [mailto:owner-yak-list-server@matronics.com] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>A. Dennis Savarese<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> maandag 18 december 2006 13:44<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> yak-list@matronics.com<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: Yak-List: =ashBack] how does the starting coil work exactly</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE:
12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=2><SPAN style="FONT-SIZE:
10pt">The starting coil is exactly the same for the 50, 52 and the CJ6.
Parts are interchangeable. The spark is continuous as long as
the start button is depressed.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=2><SPAN style="FONT-SIZE:
10pt">Dennis</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE:
12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<BLOCKQUOTE style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium
none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0cm; MARGIN: 5pt 0cm 5pt 3.75pt;
BORDER-LEFT: black 1.5pt solid; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none">
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">----- Original Message ----- <o:p></o:p></SPAN></FONT></P></DIV>
<DIV style="font-color: black">
<P class=MsoNormal style="BACKGROUND: #e4e4e4"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">From:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=jan.mevis@informavia.be href="mailto:jan.mevis@informavia.be">Jan Mevis</A> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">To:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=yak-list@matronics.com href="mailto:yak-list@matronics.com">yak-list@matronics.com</A> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE:
10pt; FONT-FAMILY: Arial">Sent:</SPAN></FONT></B><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Sunday, December 17, 2006
4:04 AM<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE:
10pt; FONT-FAMILY: Arial">Subject:</SPAN></FONT></B><FONT face=Arial
size=2 ="ashBack]"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Yak-List:
how does the starting coil work exactly<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE:
12pt"><o:p> </o:p></SPAN></FONT></P></DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">Hi all, <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">This has been intriguing to me, so I try to figure out what happens
exactly. Is the following reasoning correct, or am I missing it completely?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">When pushing the start-button, the magnetos are still off. The high-tension
starting coil gets current from the battery to its primary winding,
and the changing flux causes a high voltage on the secondary winding. The left-hand
magneto (front plugs) has a special connection for this coil, and this
high tension is immediately conducted to the proper spark plug via the distributor
on the left hand magneto.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">If I understand this well, you get only one spark from the start
coil, and you have to switch on the magnetos immediately after hearing one explosion?
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">I always thought that there was a sort of shower of sparks generator
?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">Is this system different on the Yak 50 and 52, or even compared
with the CJs ?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">Jan Mevis<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">Yak50 RA2005K <o:p></o:p></SPAN></FONT></P>
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Message 12
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| Subject: | Re: YAK 50 Structural drawings |
The Camber on the wings are different.
Doc
----- Original Message -----
From: A. Dennis Savarese
Sent: 12/18/2006 10:11:52 AM
Subject: Re: Yak-List: YAK 50 Structural drawings
Why not order a set of 52 TD wings and adapt them to the 50?
Dennis
----- Original Message -----
From: Roger Kemp
Sent: Monday, December 18, 2006 8:11 AM
Subject: Yak-List: YAK 50 Structural drawings
Along the same lines, does anyone have the structural plans for the YAK-50. Particularly
the wings. I am trying to route wiring in for strobe/nav lights.I also
want to build a new set in the near future looking at altering the way the
gear retract along with maybe speed brakes. Are they out there anywhere?
Doc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
href="http://www.aeroelectric.com">www.aeroelectric.com
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Message 13
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| Subject: | Re: YAK 50 Structural drawings |
Speed brakes....it alread has them....prop full forward and aft throttle! You can
always put a foot load of rudder in and skid her!
I think something I sent you had some pretty good drawings of the wing. I was under
the impression the wings had the same airfoil as the -52. I think the airplane
would look pretty cool with the FW-190 style gear but I would not be willing
to spend the HUGE scratch to modify it. Now, find a new place for that God
awful oil cooler sticky out and sign me on.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=82282#82282
Message 14
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| Subject: | how does the starting coil work exactly |
Thanks, I get the point! Nevertheless, it seems to work quite good, even if
it's "old" technology.
Jan Mevis
_____
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of ggg6@att.net
Sent: maandag 18 december 2006 18:34
Subject: Re: Yak-List: how does the starting coil work exactly
These things operate on the same principal as the old Spark Vibirator Coils
in the old Model "T" Fords..
Remember the old wooden box with the points on the top???
Gary Gabbard
-------------- Original message from "A. Dennis Savarese"
<dsavarese@elmore.rr.com>: --------------
There is a set of points.
Dennis
----- Original Message -----
From: Jan Mevis <mailto:jan.mevis@informavia.be>
Sent: Monday, December 18, 2006 8:07 AM
Subject: RE: Yak-List: how does the starting coil work exactly
Then what makes the current in the primary winding fluctuate? If the current
is DC constant, there's no flux change, and no high tension on the
secondary. I suppose that there has to be some kind of mechanically fast
interrupting device in the circuit of the primary winding of the booster
coil ?
Jan
_____
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
Sent: maandag 18 december 2006 13:44
Subject: Re: Yak-List: =ashBack] how does the starting coil work exactly
The starting coil is exactly the same for the 50, 52 and the CJ6. Parts
are interchangeable. The spark is continuous as long as the start button
is depressed.
Dennis
----- Original Message -----
From: Jan Mevis <mailto:jan.mevis@informavia.be>
Sent: Sunday, December 17, 2006 4:04 AM
Subject: Yak-List: how does the starting coil work exactly
Hi all,
This has been intriguing to me, so I try to figure out what happens exactly.
Is the following reasoning correct, or am I missing it completely?
When pushing the start-button, the magnetos are still off. The high-tension
starting coil gets current from the battery to its primary winding, and the
changing flux causes a high voltage on the secondary winding. The left-hand
magneto (front plugs) has a special connection for this coil, and this high
tension is immediately conducted to the proper spark plug via the
distributor on the left hand magneto.
If I understand this well, you get only one spark from the start coil, and
you have to switch on the magneto's immediately after hearing one
"explosion"?
I always thought that there was a sort of "shower of sparks" generator ?
Is this system different on the Yak 50 and 52, or even compared with the
CJ's ?
Jan Mevis
Yak50 RA2005K
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.
kitlog
.com">www.kitlog.com
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Message 15
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| Subject: | Re: YAK 50 Structural drawings |
That throttle full aft and prop full coarse pitch over speeds the prop. My
engine tends to not like that much. True the slip works real well. It would
be nice to bring her down at a constant rate like the 52 at 400mmHg and 70%
with 45 deg of flaps though.
I know, I flew 52's to long before stepping to the single seater!
Doc
> [Original Message]
> From: Tim Gagnon <NiftyYak50@msn.com>
> To: <yak-list@matronics.com>
> Date: 12/18/2006 2:10:57 PM
> Subject: Yak-List: Re: YAK 50 Structural drawings
>
>
> Speed brakes....it alread has them....prop full forward and aft throttle!
You can always put a foot load of rudder in and skid her!
>
> I think something I sent you had some pretty good drawings of the wing. I
was under the impression the wings had the same airfoil as the -52. I think
the airplane would look pretty cool with the FW-190 style gear but I would
not be willing to spend the HUGE scratch to modify it. Now, find a new
place for that God awful oil cooler sticky out and sign me on.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=82282#82282
>
>
Message 16
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| Subject: | Re: YAK 50 Structural drawings |
Are you sure? Regardless, what does that have to do with it? You'd be
replacing the entire airfoil.
Dennis
----- Original Message -----
From: Roger Kemp
To: yak-list@matronics.com
Sent: Monday, December 18, 2006 1:19 PM
Subject: Re: Yak-List: YAK 50 Structural drawings
The Camber on the wings are different.
Doc
----- Original Message -----
From: A. Dennis Savarese
To: yak-list@matronics.com
Sent: 12/18/2006 10:11:52 AM
Subject: Re: Yak-List: YAK 50 Structural drawings
[LashBack]
Why not order a set of 52 TD wings and adapt them to the 50?
Dennis
----- Original Message -----
From: Roger Kemp
To: yak-list
Sent: Monday, December 18, 2006 8:11 AM
Subject: Yak-List: YAK 50 Structural drawings
[LashBack]
Along the same lines, does anyone have the structural plans for
the YAK-50. Particularly the wings. I am trying to route wiring in for
strobe/nav lights.I also want to build a new set in the near future
looking at altering the way the gear retract along with maybe speed
brakes. Are they out there anywhere?
Doc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.kitlog.com">www.kitlog.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/Navigator?Yak-List
Message 17
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| Subject: | Re: YAK 50 Structural drawings) |
Here are the specs on the two airfoils.
Aircraft type Wing Root Airfoil
Wing Tip airfoil
Yakovlev Yak-50 Clark YH (14.5%) Clark YH (9.3%)
Yakovlev Yak-52 Clark YH (14.5%) Clark YH
(9.3%)
Dennis
----- Original Message -----
From: Roger Kemp
To: yak-list@matronics.com
Sent: Monday, December 18, 2006 1:19 PM
Subject: Re: Yak-List: YAK 50 Structural drawings
The Camber on the wings are different.
Doc
----- Original Message -----
From: A. Dennis Savarese
To: yak-list@matronics.com
Sent: 12/18/2006 10:11:52 AM
Subject: Re: Yak-List: YAK 50 Structural drawings
[LashBack]
Why not order a set of 52 TD wings and adapt them to the 50?
Dennis
----- Original Message -----
From: Roger Kemp
To: yak-list
Sent: Monday, December 18, 2006 8:11 AM
Subject: Yak-List: YAK 50 Structural drawings
[LashBack]
Along the same lines, does anyone have the structural plans for
the YAK-50. Particularly the wings. I am trying to route wiring in for
strobe/nav lights.I also want to build a new set in the near future
looking at altering the way the gear retract along with maybe speed
brakes. Are they out there anywhere?
Doc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
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Message 18
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I just noticed in my hast to post that my tongue got in front of my eye teeth and
I typed the wrong answer!
It should have read there is a risk of prop overspeeed if you decrease the manifold
pressure to idle and then change the pitch on the prop to fine. I think you
can get away with that if you first advance the prop then pull the manifold
to idle.
Doc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
Message 19
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| Subject: | Re: YAK 50 Structural drawings) |
As I understood it from Termikus, the difference is in the wingtip washout along
with something about the I bolt mounting point. He was pretty emphatic about
the two wings not being interchangable. If they were, would we still have a 9
g wing if it were changed out to the TD wing. If that could be done, it would
save alot of engineering to create gear that fold in verse back along with moving
the oil cooler to a more esthetic place under the wing. You would also get
additional fuel, a 10 meter cross wind capability, and flaps. Although somewhere
I recall there was a tabo on flaps with the location of the pilot and the
creation of an aft CG. That brain bit has developed cobwebs or was just deceased,
I can't remember!
Doc
----- Original Message -----
From: A. Dennis Savarese
Sent: 12/18/2006 5:55:07 PM
Subject: Yak 50 and 52 Airfoils (Re: Yak-List: YAK 50 Structural drawings)
Here are the specs on the two airfoils.
Aircraft type Wing Root Airfoil
Wing Tip airfoil
Yakovlev Yak-50 Clark YH (14.5%) Clark YH (9.3%)
Yakovlev Yak-52 Clark YH (14.5%) Clark YH (9.3%)
Dennis
----- Original Message -----
From: Roger Kemp
Sent: Monday, December 18, 2006 1:19 PM
Subject: Re: Yak-List: YAK 50 Structural drawings
The Camber on the wings are different.
Doc
----- Original Message -----
From: A. Dennis Savarese
Sent: 12/18/2006 10:11:52 AM
Subject: Re: Yak-List: YAK 50 Structural drawings
[LashBack]
Why not order a set of 52 TD wings and adapt them to the 50?
Dennis
----- Original Message -----
From: Roger Kemp
Sent: Monday, December 18, 2006 8:11 AM
Subject: Yak-List: YAK 50 Structural drawings
[LashBack]
Along the same lines, does anyone have the structural plans for the YAK-50. Particularly
the wings. I am trying to route wiring in for strobe/nav lights.I also
want to build a new set in the near future looking at altering the way the
gear retract along with maybe speed brakes. Are they out there anywhere?
Doc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
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Message 20
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Hi Dennis,thanks for your help
Karl
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis
Savarese
Sent: Monday, 18 December 2006 11:41 PM
Subject: Re: Yak-List: Yak-52 intercom
The box is located behind the front seat, under the center section
between the cockpits on the left side (looking from the rear cockpit
forward). It has a large cannon plug on it.
Dennis
----- Original Message -----
From: HYPERLINK "mailto:kahamer@bigpond.net.au"Karl Ahamer
Sent: Sunday, December 17, 2006 12:53 AM
Subject: Yak-List: Yak-52 intercom
Hi everyone,
We have a YAK-52 in our club which has developed an intercom problem.As
soon us one switches the intercom on, the circuit breaker/switch cuts
out.
Where is the intercom located in the YAK? Is it part of the radio?
Thanks
Karl Ahamer
Australia
--
16/12/2006
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17/12/2006
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18/12/2006
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