---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Mon 12/18/06: 20 ---------------------------------------------------------- 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 _____________________________________ Time: 04:41:48 AM PST US From: "A. Dennis Savarese" 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: 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 _____________________________________ Time: 04:44:47 AM PST US From: "A. Dennis Savarese" 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 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 _____________________________________ Time: 04:45:45 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: 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 _____________________________________ Time: 05:01:59 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: 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 _____________________________________ Time: 06:09:59 AM PST US From: "Jan Mevis" 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 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 _____________________________________ Time: 06:13:27 AM PST US From: "Roger Kemp" 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 7 _____________________________________ Time: 07:46:52 AM PST US From: "Scott Poehlmann" Subject: RE: Yak-List: 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 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 www.kitlog.com http://www.matronics.com/Navigator?Yak-List www.aeroelectric.com ________________________________ Message 8 _____________________________________ Time: 08:00:55 AM PST US From: "A. Dennis Savarese" 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 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 _____________________________________ Time: 08:02:43 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: 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 ____________________________________ Time: 09:26:03 AM PST US From: Doug Sapp Subject: Re: Yak-List: 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 > Aint no sound like a Radial > > > >* > > >* > ________________________________ Message 11 ____________________________________ Time: 09:34:04 AM PST US From: ggg6@att.net 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" : -------------- 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

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
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

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

 

 
 
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href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.
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.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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www.kitlog.com
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href="http://www.kitlog.com">www.kitlog.com
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________________________________ Message 12 ____________________________________ Time: 11:22:42 AM PST US From: "Roger Kemp" 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 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 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 ________________________________ Message 13 ____________________________________ Time: 12:03:14 PM PST US Subject: Yak-List: Re: YAK 50 Structural drawings From: "Tim Gagnon" 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 ____________________________________ Time: 12:13:33 PM PST US From: "Jan Mevis" Subject: RE: Yak-List: 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" : -------------- 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, 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 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 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/Navig ator?Yak-List ________________________________ Message 15 ____________________________________ Time: 02:20:46 PM PST US From: "Roger Kemp" Subject: RE: Yak-List: 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 > To: > 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 ____________________________________ Time: 03:43:11 PM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: 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 ____________________________________ Time: 03:48:28 PM PST US From: "A. Dennis Savarese" 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 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 18 ____________________________________ Time: 05:30:06 PM PST US From: "Roger Kemp" Subject: Yak-List: Prop overspeed 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 ____________________________________ Time: 05:40:42 PM PST US From: "Roger Kemp" Subject: RE: Yak 50 and 52 Airfoils (Re: Yak-List: 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 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 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 ________________________________ Message 20 ____________________________________ Time: 06:21:46 PM PST US From: "Karl Ahamer" Subject: RE: Yak-List: Yak-52 intercom 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 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/ch ref="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.c om/Navigator?Yak-List "http://www.aeroelectric.com"www.aeroelectric.com "http://www.buildersbooks.com"www.buildersbooks.com "http://www.kitlog.com"www.kitlog.com "http://www.homebuilthelp.com"www.homebuilthelp.com "http://www.matronics.com/contribution"http://www.matronics.com/contribu tion "http://www.matronics.com/Navigator?Yak-List"http://www.matronics.com/Na vigator?Yak-List -- 17/12/2006 -- 18/12/2006 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse Digests http://www.matronics.com/digest/yak-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.