Today's Message Index:
----------------------
1. 08:55 AM - WANTED - Garmin 296 (David McGirt)
2. 09:19 AM - gear handle air leaking (Jon Boede)
3. 09:55 AM - Re: gear handle air leaking (Jim Bernier)
4. 02:16 PM - Re: gear handle air leaking (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
5. 02:21 PM - Re: gear handle air leaking (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
6. 03:41 PM - Radio available (YAK-52) (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
7. 05:51 PM - Re: gear handle air leaking (A. Dennis Savarese)
8. 06:07 PM - Re: Radio available (YAK-52) (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
9. 06:11 PM - Re: gear handle air leaking (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
10. 06:43 PM - Re: Re: Bear 360 / Radial engine pod (Don Milbourn)
11. 06:54 PM - Re: gear handle air leaking (A. Dennis Savarese)
Message 1
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| Subject: | WANTED - Garmin 296 |
Anyone out there looking to trade in their 296 on a current 396/496? If so,
I would be interested in buying it at the Garmin trade in value they would
give you for it. If you have one, please email me off list.
David
Message 2
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| Subject: | gear handle air leaking |
I get a small but audible air leak from my front gear handle in the neutral
and down positions.
However, the leak stops when I put the rear handle in the down position.
So I'm under the impression that my selector in the back seat probably has
issues (I'm guessing it's gunk'd up).
However, Doug said a while back:
http://www.matronics.com/searching/getmsg_script.cgi?INDEX=37396822?KEYS=qsf-2a?LISTNAME=Yak?HITNUMBER=15?SERIAL113229170?SHOWBUTTONS=NO
That it might be the the retract cylinders that need a bit of attention.
How might one determine which of these it is?
Thanks,
Jon
Message 3
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| Subject: | Re: gear handle air leaking |
Jon
When the rear gear handle is placed in the up or down position no air is
supplied to the front gear selector. It only has that pressure that was
left in the line. The air leak is due to the front selector being gunk'd
up. This is the good news because the front only has 4 fittings as
compared to the rear having 6. After removing the front selector take it
apart looking for crud. You will probably find that cleaning it does
nothing as it has corrosion. If no corrosion, clean it and apply vacuum
grease, or a silicon grease. Place a light coat of grease on the machined
surface. The grease is your choice as it will seal the unit, but capture
any foreign objects and cause a potential air leak. How clean is your air
system? If corroded you can either take it to a machine shop to have the
surfaces re-machined or buy it new from Doug. I'd buy it new unless you
know a machinist.
Just my two cents.
Jim
>>> "Jon Boede" <jonboede@hotmail.com> 6/15/2007 11:15 AM >>>
I get a small but audible air leak from my front gear handle in the
neutral
and down positions.
However, the leak stops when I put the rear handle in the down position.
So I'm under the impression that my selector in the back seat probably
has
issues (I'm guessing it's gunk'd up).
However, Doug said a while back:
http://www.matronics.com/searching/getmsg_script.cgi?INDEX=37396822?KEYS
=qsf-2a?LISTNAME=Yak?HITNUMBER=15?SERIAL=09113229170?SHOWBUTTONS=
NO
That it might be the the retract cylinders that need a bit of attention.
How might one determine which of these it is?
Thanks,
Jon
Message 4
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| Subject: | gear handle air leaking |
I am not a 52 pneumatic expert. I am however pretty up to speed on the
50. Sadly the actuators and layout are different, but close enough that
I would guess that the advice I will give you here will work.
You might want to put the aircraft on jacks before doing this, just to
be 100$ perfectly safe. In theory, you should not NEED to, but hey....
I sure would.
1. Aircraft on jacks.
2. Air off, and depressurize air system.
3. Remove one air line at a time that goes to an actuator and is used
to make the landing gear go UP. Be careful to choose the right one.
4. With landing gear selected down, pressurize the system.
5. Put your finger over, or your ear near the actuator where you just
removed the UP line. If there is air leaking out of the actuator
fitting on the actuator itself, then you have found the bad internally
leaking actuator.
6. If there is air coming out of the HOSE that you just removed, then
you either removed the wrong hose from the actuator, in which case there
is one HUGE amount of air coming out.... OR.... Your problem is on
ANOTHER actuator.
7. Assuming you have not screwed up and indeed you have removed the UP
air line from the actuator, put it back on and now move to the next
actuator and remove IT's "UP" air line. Again, this is the air line
that makes the actuator RETRACT. Again check to see if the air comes
from the actuator or the hose. If from actuator, it is bad actuator
leaking internally. If it is from hose, then put it back on and move to
the next gear actuator.
Not too difficult really. Just realize that you have one hose going to
each actuator that puts pressure into it to force them to go down. You
have another hose hooked to the opposite end of each actuator to make
the actuators move in the opposite direction, in this case UP. When you
raise or lower the gear, these actuators move. There are rubber seals
inside to prevent the air from going straight through. As the actuators
move, they also force air out of the opposite sides of the actuators.
This air is the loud HISS you hear every time you raise and lower the
gear. Once the gear is either up OR down, this hiss should stop. If an
actuator is leaking internally, air will tend to go right on through it,
and then travel up the opposite hose, where it is then routed to the
gear handle and vented.
Thus, if you have a continuous leak at the gear handle, it is usually an
internally leaking actuator.
The 52, with two gear handles, has come convoluted stuff going on that I
have never studied, and I am sure someone else can explain that to you.
However, the method I have described here will find an internally
leaking actuator pretty quickly.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jon Boede
Sent: Friday, June 15, 2007 12:16
Subject: Yak-List: gear handle air leaking
I get a small but audible air leak from my front gear handle in the
neutral and down positions.
However, the leak stops when I put the rear handle in the down position.
So I'm under the impression that my selector in the back seat probably
has issues (I'm guessing it's gunk'd up).
However, Doug said a while back:
http://www.matronics.com/searching/getmsg_script.cgi?INDEX=37396822?KEYS
=qsf-2a?LISTNAME=Yak?HITNUMBER=15?SERIAL113229170?SHOWBUTTONS=NO
That it might be the the retract cylinders that need a bit of attention.
How might one determine which of these it is?
Thanks,
Jon
Message 5
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| Subject: | gear handle air leaking |
Thanks for explaining this Jim, I should have read it before I wrote
what I did. Sorry, but in any case I just learned something about the
52, and also why one local here had a gear collapse on landing. Anyway,
I would go further to possibly ask this question.
When you put the gear handle down in the rear seat, very carefully
listen for any air coming out of THAT handle. If there is no air coming
out of the REAR gear handle in the up or down position, I would
obviously concur with Jim. If there is air coming out of the REAR gear
handle in the UP or DOWN position, as well as the leak you described in
the front with the rear handle in the middle, I would suspect actuators.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jim Bernier
Sent: Friday, June 15, 2007 12:55
Subject: Re: Yak-List: gear handle air leaking
Jon
When the rear gear handle is placed in the up or down position no air is
supplied to the front gear selector. It only has that pressure that was
left in the line. The air leak is due to the front selector being gunk'd
up. This is the good news because the front only has 4 fittings as
compared to the rear having 6. After removing the front selector take it
apart looking for crud. You will probably find that cleaning it does
nothing as it has corrosion. If no corrosion, clean it and apply vacuum
grease, or a silicon grease. Place a light coat of grease on the
machined surface. The grease is your choice as it will seal the unit,
but capture any foreign objects and cause a potential air leak. How
clean is your air system? If corroded you can either take it to a
machine shop to have the surfaces re-machined or buy it new from Doug.
I'd buy it new unless you know a machinist.
Just my two cents.
Jim
>>> "Jon Boede" <jonboede@hotmail.com> 6/15/2007 11:15 AM >>>
I get a small but audible air leak from my front gear handle in the
neutral and down positions.
However, the leak stops when I put the rear handle in the down position.
So I'm under the impression that my selector in the back seat probably
has issues (I'm guessing it's gunk'd up).
However, Doug said a while back:
http://www.matronics.com/searching/getmsg_script.cgi?INDEX=37396822?KEYS
=qsf-2a?LISTNAME=Yak?HITNUMBER=15?SERIAL113229170?SHOWBUTTONS=NO
That it might be the the retract cylinders that need a bit of attention.
How might one determine which of these it is?
Thanks,
Jon
http://forums.matronics.com=============
<http://forums.matronics.com/>
Message 6
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| Subject: | Radio available (YAK-52) |
YAK-52 owners:
I don't run a parts business, so I hope posting this here will not
offend anyone. Some time back I decided to see what it would take to
start fixing Russian radios. Well... It has been an experience to say
the least. Bottom line is that I have decided that it takes too much
time and effort for very little end gain, which is true of most Avionics
Shops unless they charge SUPER high labor rates. The one reason I gave
it a shot is that these Russian Radios are not type certified, so
legally, I can work on them.
That said, I purchased bad radios from everyone I could find, and made a
few good ones out of a lot of bad ones. I have sold them all to happy
customers except for one very special radio that is super rare. I held
on to that one, but am now ready to let it go.
The typical Russian radio in a YAK-52 is a Balken-5 (excuse me
spelling). This radio has 5-7 watts carrier output, with approx. 20
watts peak to peak with audio. This is the normal output power of most
U.S. General Aviation radios. On the other hand, commercial carrier
operators with heavy iron, (because of the attitudes they usually fly)
usually have rack mounted radios with 20 watts carrier, and 80 watts
peak to peak with audio. This is the reason why when you and a airliner
talk at the same time, center or tower always hears THEM and not YOU!
They simply have four times more output power than you. Roughly a 6 dBm
improvement.
Anyway, I managed to get my hands on a Balken-20. As you might have
guessed, this radio is a TWENTY watt carrier and EIGHTY watt peak to
peak with audio model. It is EXACTLY the same shape and size as the -5
model. It mounts in the same rack, it works exactly the same, and all
the internal parts are interchangeable with the -5 EXCEPT for the final
PA stage, and that will rarely if ever go bad unless you transmit into a
failed antenna. This radio was never stock in a 52, but was used in
much larger aircraft. Somehow one accidently got into a 52 and I
managed to realize what it actually was simply by accident.
This radio WAS damaged, and has had the complete receiver board
replaced.
A used but good -5 model radio at BEST PRICE sold for around $450 if you
could find one. They are very hard to find these days. Vladimir wants
$900 for one. I am selling this -20 model for $700. If you just fly
around the pattern and around town, this radio is really a poor
inventment unless you really want it as a spare. If you do a lot of
cross country flying, and want a radio that will talk a LONG way limited
only by your line of sight altitute, then this radio is for you.
Please contact me off list if you are interested.
Mark.Bitterlich@navy.mil work
markbitterlich@earthlink.net home
Message 7
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| Subject: | Re: gear handle air leaking |
In most cases, when you have air leaking out of the front gear handle, it is
not the gear handle, but one of the landing gear actuators. As Jim said,
when you put the rear gear handle in the up or down position you shut off
the air to the front selector. Consider the rear gear handle the "master"
and the front the "slave". Unfortunately, there is no easy way of
determining which actuator is causing the leak except by removing the "up"
side flexible line of the actuator and listening to the gear handle. By
removing the easy side, which is the UP side, if that specific actuator is
leaking though the internal seals from the air supplied by the DOWN side,
you will feel and hear the air leaking out of the UP fitting on the
actuator. It is best to accomplish this troubleshooting with airplane on
jacks. BE CAREFUL when removing the flexible lines from both the UP side
and normal DOWN size of the actuators because inside the flared nut is a
small flow reducer about the size of a contact lens. It has a very small
hole in it about the size of a pin. The emergency side of the actuator does
not have a reducer in it. Both down side flexible lines attach to the
shuttle valve on the top side of the actuator.
If you need further assistance, don't hesitate to call me. 334-285-2141
Dennis
----- Original Message -----
From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E"
<mark.bitterlich@navy.mil>
Sent: Friday, June 15, 2007 4:21 PM
Subject: RE: Yak-List: gear handle air leaking
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Thanks for explaining this Jim, I should have read it before I wrote
> what I did. Sorry, but in any case I just learned something about the
> 52, and also why one local here had a gear collapse on landing. Anyway,
> I would go further to possibly ask this question.
>
> When you put the gear handle down in the rear seat, very carefully
> listen for any air coming out of THAT handle. If there is no air coming
> out of the REAR gear handle in the up or down position, I would
> obviously concur with Jim. If there is air coming out of the REAR gear
> handle in the UP or DOWN position, as well as the leak you described in
> the front with the rear handle in the middle, I would suspect actuators.
>
>
> Mark Bitterlich
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Jim Bernier
> Sent: Friday, June 15, 2007 12:55
> To: yak-list@matronics.com
> Subject: Re: Yak-List: gear handle air leaking
>
> Jon
> When the rear gear handle is placed in the up or down position no air is
> supplied to the front gear selector. It only has that pressure that was
> left in the line. The air leak is due to the front selector being gunk'd
> up. This is the good news because the front only has 4 fittings as
> compared to the rear having 6. After removing the front selector take it
> apart looking for crud. You will probably find that cleaning it does
> nothing as it has corrosion. If no corrosion, clean it and apply vacuum
> grease, or a silicon grease. Place a light coat of grease on the
> machined surface. The grease is your choice as it will seal the unit,
> but capture any foreign objects and cause a potential air leak. How
> clean is your air system? If corroded you can either take it to a
> machine shop to have the surfaces re-machined or buy it new from Doug.
> I'd buy it new unless you know a machinist.
> Just my two cents.
> Jim
>
>>>> "Jon Boede" <jonboede@hotmail.com> 6/15/2007 11:15 AM >>>
>
> I get a small but audible air leak from my front gear handle in the
> neutral and down positions.
>
> However, the leak stops when I put the rear handle in the down position.
>
> So I'm under the impression that my selector in the back seat probably
> has issues (I'm guessing it's gunk'd up).
>
> However, Doug said a while back:
>
> http://www.matronics.com/searching/getmsg_script.cgi?INDEX=37396822?KEYS
> =qsf-2a?LISTNAME=Yak?HITNUMBER=15?SERIAL113229170?SHOWBUTTONS=NO
>
> That it might be the the retract cylinders that need a bit of attention.
>
> How might one determine which of these it is?
>
> Thanks,
> Jon
>
> http://forums.matronics.com=============
>
>
> <http://forums.matronics.com/>
>
>
>
Message 8
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| Subject: | RE: Radio available (YAK-52) |
Thanks to all, as I expected, this went quickly.
Mark
-----Original Message-----
From: Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E
Sent: Friday, June 15, 2007 18:40
Cc: Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E;
markbitterlich@earthlink.net
Subject: Radio available (YAK-52)
YAK-52 owners:
I don't run a parts business, so I hope posting this here will not
offend anyone. Some time back I decided to see what it would take to
start fixing Russian radios. Well... It has been an experience to say
the least. Bottom line is that I have decided that it takes too much
time and effort for very little end gain, which is true of most Avionics
Shops unless they charge SUPER high labor rates. The one reason I gave
it a shot is that these Russian Radios are not type certified, so
legally, I can work on them.
That said, I purchased bad radios from everyone I could find, and made a
few good ones out of a lot of bad ones. I have sold them all to happy
customers except for one very special radio that is super rare. I held
on to that one, but am now ready to let it go.
The typical Russian radio in a YAK-52 is a Balken-5 (excuse me
spelling). This radio has 5-7 watts carrier output, with approx. 20
watts peak to peak with audio. This is the normal output power of most
U.S. General Aviation radios. On the other hand, commercial carrier
operators with heavy iron, (because of the attitudes they usually fly)
usually have rack mounted radios with 20 watts carrier, and 80 watts
peak to peak with audio. This is the reason why when you and a airliner
talk at the same time, center or tower always hears THEM and not YOU!
They simply have four times more output power than you. Roughly a 6 dBm
improvement.
Anyway, I managed to get my hands on a Balken-20. As you might have
guessed, this radio is a TWENTY watt carrier and EIGHTY watt peak to
peak with audio model. It is EXACTLY the same shape and size as the -5
model. It mounts in the same rack, it works exactly the same, and all
the internal parts are interchangeable with the -5 EXCEPT for the final
PA stage, and that will rarely if ever go bad unless you transmit into a
failed antenna. This radio was never stock in a 52, but was used in
much larger aircraft. Somehow one accidently got into a 52 and I
managed to realize what it actually was simply by accident.
This radio WAS damaged, and has had the complete receiver board
replaced.
A used but good -5 model radio at BEST PRICE sold for around $450 if you
could find one. They are very hard to find these days. Vladimir wants
$900 for one. I am selling this -20 model for $700. If you just fly
around the pattern and around town, this radio is really a poor
inventment unless you really want it as a spare. If you do a lot of
cross country flying, and want a radio that will talk a LONG way limited
only by your line of sight altitute, then this radio is for you.
Please contact me off list if you are interested.
Mark.Bitterlich@navy.mil work
markbitterlich@earthlink.net home
Message 9
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| Subject: | gear handle air leaking |
Good call on the flow reducing "contact lens" inside of the "up and
down" hose fittings connecting to the actuators.
I forgot about those in my explanation Dennis and it was a BAD oversight
on my part. Those little suckers are easy to overlook, easy to roll
away and get lost, and very important for the proper operation of the
gear. My bad.
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, June 15, 2007 20:51
Subject: Re: Yak-List: gear handle air leaking
--> <dsavarese@elmore.rr.com>
In most cases, when you have air leaking out of the front gear handle,
it is not the gear handle, but one of the landing gear actuators. As
Jim said, when you put the rear gear handle in the up or down position
you shut off the air to the front selector. Consider the rear gear
handle the "master"
and the front the "slave". Unfortunately, there is no easy way of
determining which actuator is causing the leak except by removing the
"up"
side flexible line of the actuator and listening to the gear handle. By
removing the easy side, which is the UP side, if that specific actuator
is leaking though the internal seals from the air supplied by the DOWN
side, you will feel and hear the air leaking out of the UP fitting on
the actuator. It is best to accomplish this troubleshooting with
airplane on jacks. BE CAREFUL when removing the flexible lines from
both the UP side and normal DOWN size of the actuators because inside
the flared nut is a small flow reducer about the size of a contact lens.
It has a very small hole in it about the size of a pin. The emergency
side of the actuator does not have a reducer in it. Both down side
flexible lines attach to the shuttle valve on the top side of the
actuator.
If you need further assistance, don't hesitate to call me. 334-285-2141
Dennis
----- Original Message -----
From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E"
<mark.bitterlich@navy.mil>
Sent: Friday, June 15, 2007 4:21 PM
Subject: RE: Yak-List: gear handle air leaking
Point,
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Thanks for explaining this Jim, I should have read it before I wrote
> what I did. Sorry, but in any case I just learned something about the
> 52, and also why one local here had a gear collapse on landing.
Anyway,
> I would go further to possibly ask this question.
>
> When you put the gear handle down in the rear seat, very carefully
> listen for any air coming out of THAT handle. If there is no air
coming
> out of the REAR gear handle in the up or down position, I would
> obviously concur with Jim. If there is air coming out of the REAR
gear
> handle in the UP or DOWN position, as well as the leak you described
in
> the front with the rear handle in the middle, I would suspect
actuators.
>
>
> Mark Bitterlich
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Jim Bernier
> Sent: Friday, June 15, 2007 12:55
> To: yak-list@matronics.com
> Subject: Re: Yak-List: gear handle air leaking
>
> Jon
> When the rear gear handle is placed in the up or down position no air
is
> supplied to the front gear selector. It only has that pressure that
was
> left in the line. The air leak is due to the front selector being
gunk'd
> up. This is the good news because the front only has 4 fittings as
> compared to the rear having 6. After removing the front selector take
it
> apart looking for crud. You will probably find that cleaning it does
> nothing as it has corrosion. If no corrosion, clean it and apply
vacuum
> grease, or a silicon grease. Place a light coat of grease on the
> machined surface. The grease is your choice as it will seal the unit,
> but capture any foreign objects and cause a potential air leak. How
> clean is your air system? If corroded you can either take it to a
> machine shop to have the surfaces re-machined or buy it new from Doug.
> I'd buy it new unless you know a machinist.
> Just my two cents.
> Jim
>
>>>> "Jon Boede" <jonboede@hotmail.com> 6/15/2007 11:15 AM >>>
>
> I get a small but audible air leak from my front gear handle in the
> neutral and down positions.
>
> However, the leak stops when I put the rear handle in the down
position.
>
> So I'm under the impression that my selector in the back seat probably
> has issues (I'm guessing it's gunk'd up).
>
> However, Doug said a while back:
>
>
http://www.matronics.com/searching/getmsg_script.cgi?INDEX=37396822?KEYS
> =qsf-2a?LISTNAME=Yak?HITNUMBER=15?SERIAL113229170?SHOWBUTTONS=NO
>
> That it might be the the retract cylinders that need a bit of
attention.
>
> How might one determine which of these it is?
>
> Thanks,
> Jon
>
> http://forums.matronics.com=============
>
>
> <http://forums.matronics.com/>
>
>
>
Message 10
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| Subject: | Re: Bear 360 / Radial engine pod |
Well said Doc!
----- Original Message -----
From: "Roger Kemp" <viperdoc@mindspring.com>
Sent: Wednesday, June 13, 2007 10:02 PM
Subject: RE: Yak-List: Re: Bear 360 / Radial engine pod
>
> Screw them. The 50 and the 52 are technically warbirds. Both flown by
> Russia (USSR). Contra to popular believe civilian aviation did not exist
> behind the iron curtain. The DOSAFF trained future aviators for the state!
> There were not privately owned aircraft flown by private pilots during the
> heyday of these aircraft. Why do you think these instrumentation in these
> aircraft were set up like they were? Why did they set the low speed jet up
> to load up the engine on final when you get behind the power curve?
> What civilian aircraft has the instrumentation in it that is set up the
> same as the follow on jet trainer or the MiG or Sukio fighter. I dare say
> you are not going to find percent RPM in a single civilian primary trainer
> on any continent. Nor are you going to find a pressure carburetor setup to
> load up on base final turn if you get behind the power curve with a sink
> rate on final. It was so the fleagle would be prepared for that spool up
> lag time required by that turbofan in the L-29, L-39, MIG 15, MIG 21, MIG
> 23 or MIG 25 to keep them from bending one of the State's assets. Look at
> that brake handle you grab every time you get ready to taxi then go look
> in the MIG 15 through MIG 29 pits (I have not had the opportunity to look
> at the pit of any of the other newer aircraft in their inventory). What do
> you see hanging on the side of that stick?
> These aircraft were/are military trainers. The 50 and 52 were flown for
> the glory of the State not the pleasure of the individual! The pleasure of
> the individual happened only because that aviator was good enough to make
> the grade and was allowed to compete for the State or fly in
> defense/offense of it. Even Aeroflot was a branch of the military/KGB. I
> repeat, the USSR did not have a civilian general aviation fleet. Not the
> fleet as we in the western world know it to be. You got to fly an airplane
> because you served a purpose in the glorification of the State.
> These aircraft have every right to be in the warbird category as does any
> of the French, German, Polish, English, Australian, US, Japanese, or
> whatever other military trainer does.
> Doc
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of flir47
> Sent: Wednesday, June 13, 2007 5:00 PM
> To: yak-list@matronics.com
> Subject: Yak-List: Re: Bear 360 / Radial engine pod
>
>
> Ok.... I guess I will use the fact the Lithuanias military uses the 52
> for training to fight off the real warbird owners when they try to
> cave my head in for flying a Yak.... and calling it a warbird. Then... I
> will try to fight off the acro pilots that think the 50 should just be a
> acro plane not a warbird.
>
> One thing for sure! They all were on me like stink on poop! I need some
> hard real facts ...that I wasn't finding on the net.
>
> All I really wanted was a $100 hamburger....instead I got flogged for
> flying a Yak 50.
>
> If I was flying a Yak9... I would have told them to shut their cake traps!
>
> The flight home in the 50 was still fun though :D
>
> --------
> You built and fly an RV.......BIG DEAL!!!!
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=118300#118300
>
>
>
Message 11
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| Subject: | Re: gear handle air leaking |
No way Mark. With your contributions to the group you will never be "my
bad".
Dennis
----- Original Message -----
From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E"
<mark.bitterlich@navy.mil>
Sent: Friday, June 15, 2007 8:10 PM
Subject: RE: Yak-List: gear handle air leaking
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Good call on the flow reducing "contact lens" inside of the "up and
> down" hose fittings connecting to the actuators.
>
> I forgot about those in my explanation Dennis and it was a BAD oversight
> on my part. Those little suckers are easy to overlook, easy to roll
> away and get lost, and very important for the proper operation of the
> gear. My bad.
>
> 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, June 15, 2007 20:51
> To: yak-list@matronics.com
> Subject: Re: Yak-List: gear handle air leaking
>
> --> <dsavarese@elmore.rr.com>
>
> In most cases, when you have air leaking out of the front gear handle,
> it is not the gear handle, but one of the landing gear actuators. As
> Jim said, when you put the rear gear handle in the up or down position
> you shut off the air to the front selector. Consider the rear gear
> handle the "master"
> and the front the "slave". Unfortunately, there is no easy way of
> determining which actuator is causing the leak except by removing the
> "up"
> side flexible line of the actuator and listening to the gear handle. By
> removing the easy side, which is the UP side, if that specific actuator
> is leaking though the internal seals from the air supplied by the DOWN
> side, you will feel and hear the air leaking out of the UP fitting on
> the actuator. It is best to accomplish this troubleshooting with
> airplane on jacks. BE CAREFUL when removing the flexible lines from
> both the UP side and normal DOWN size of the actuators because inside
> the flared nut is a small flow reducer about the size of a contact lens.
> It has a very small hole in it about the size of a pin. The emergency
> side of the actuator does not have a reducer in it. Both down side
> flexible lines attach to the shuttle valve on the top side of the
> actuator.
>
> If you need further assistance, don't hesitate to call me. 334-285-2141
> Dennis
>
> ----- Original Message -----
> From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E"
> <mark.bitterlich@navy.mil>
> To: <yak-list@matronics.com>
> Sent: Friday, June 15, 2007 4:21 PM
> Subject: RE: Yak-List: gear handle air leaking
>
>
> Point,
>> MALS-14 64E" <mark.bitterlich@navy.mil>
>>
>> Thanks for explaining this Jim, I should have read it before I wrote
>> what I did. Sorry, but in any case I just learned something about the
>> 52, and also why one local here had a gear collapse on landing.
> Anyway,
>> I would go further to possibly ask this question.
>>
>> When you put the gear handle down in the rear seat, very carefully
>> listen for any air coming out of THAT handle. If there is no air
> coming
>> out of the REAR gear handle in the up or down position, I would
>> obviously concur with Jim. If there is air coming out of the REAR
> gear
>> handle in the UP or DOWN position, as well as the leak you described
> in
>> the front with the rear handle in the middle, I would suspect
> actuators.
>>
>>
>> Mark Bitterlich
>>
>>
>> -----Original Message-----
>> From: owner-yak-list-server@matronics.com
>> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Jim Bernier
>> Sent: Friday, June 15, 2007 12:55
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: gear handle air leaking
>>
>> Jon
>> When the rear gear handle is placed in the up or down position no air
> is
>> supplied to the front gear selector. It only has that pressure that
> was
>> left in the line. The air leak is due to the front selector being
> gunk'd
>> up. This is the good news because the front only has 4 fittings as
>> compared to the rear having 6. After removing the front selector take
> it
>> apart looking for crud. You will probably find that cleaning it does
>> nothing as it has corrosion. If no corrosion, clean it and apply
> vacuum
>> grease, or a silicon grease. Place a light coat of grease on the
>> machined surface. The grease is your choice as it will seal the unit,
>> but capture any foreign objects and cause a potential air leak. How
>> clean is your air system? If corroded you can either take it to a
>> machine shop to have the surfaces re-machined or buy it new from Doug.
>> I'd buy it new unless you know a machinist.
>> Just my two cents.
>> Jim
>>
>>>>> "Jon Boede" <jonboede@hotmail.com> 6/15/2007 11:15 AM >>>
>>
>> I get a small but audible air leak from my front gear handle in the
>> neutral and down positions.
>>
>> However, the leak stops when I put the rear handle in the down
> position.
>>
>> So I'm under the impression that my selector in the back seat probably
>> has issues (I'm guessing it's gunk'd up).
>>
>> However, Doug said a while back:
>>
>>
> http://www.matronics.com/searching/getmsg_script.cgi?INDEX=37396822?KEYS
>> =qsf-2a?LISTNAME=Yak?HITNUMBER=15?SERIAL113229170?SHOWBUTTONS=NO
>>
>> That it might be the the retract cylinders that need a bit of
> attention.
>>
>> How might one determine which of these it is?
>>
>> Thanks,
>> Jon
>>
>> http://forums.matronics.com=============
>>
>>
>>
>> <http://forums.matronics.com/>
>>
>>
>>
>>
>>
>>
>
>
>
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