Today's Message Index:
----------------------
1. 12:32 AM - air leak (Mark Jefferies YAK UK)
2. 04:31 AM - Re: air leak (A. Dennis Savarese)
3. 05:56 AM - Re: Brake Failure in Yak (Rob Rowe)
4. 07:15 AM - Re: Yak-List Digest: 3 Msgs - 12/20/06 (Valkyre1)
5. 07:27 AM - Re: Brake Failure in Yak (Jim Bernier)
6. 07:39 AM - Re: Re: Yak-List Digest: 3 Msgs - 12/20/06 (A. Dennis Savarese)
7. 08:32 AM - Re: Re: Brake Failure in Yak (A. Dennis Savarese)
8. 09:05 AM - Paging Barry Hancock (Ashley Battles)
9. 09:28 AM - Re: Re: Brake Failure in Yak (Ai Bao)
10. 10:51 AM - Air filter vs "grey stuff" (Doug Sapp)
11. 11:25 AM - Re: Air filter vs "grey stuff" (ByronMFox@aol.com)
12. 12:14 PM - Re: Air filter vs "grey stuff" (Jon Boede)
13. 01:35 PM - Re: Re: Yak-List Digest: 3 Msgs - 12/20/06 (Dr Andre Katz)
14. 05:09 PM - Re: Air filter vs "grey stuff" (KingCJ6@aol.com)
15. 07:29 PM - Re: Re: Yak-List Digest: 3 Msgs - 12/20/06 (Roger Kemp)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
You will find that the seals in the gear one of the 3 are in a bad way. Best
overhaul all 3 lifters, emg valves and up locks.
Seasons greetings, mj
+++++++++++
So the culprit appears to be a sticky/dirty non-return valve somewhere,
which is kept closed when pressure is high, but then opens as the pressure
drops. The pop off valve is keeping in the emergency air, but that's where
the main air is blowing out from.
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Mark is right on. You can try to repair your airplane piecemeal, but if one
actuator (Mark calls it a lifter) is leaking, you can bet the other 2 are in
a bad way internally also. Don't forget to overhaul the shuttle valves on
the actuators as well. Oh! One more thing. You may as well overhaul the
flap actuator too. The same crud that is in the landing gear actuators and
uplocks is also in the flap actuator and its shuttle valves.
Dennis
----- Original Message -----
From: "Mark Jefferies YAK UK" <mj@yakuk.com>
Sent: Thursday, December 21, 2006 2:31 AM
Subject: Yak-List: air leak
>
> You will find that the seals in the gear one of the 3 are in a bad way.
> Best
> overhaul all 3 lifters, emg valves and up locks.
>
>
> Seasons greetings, mj
>
> +++++++++++
>
> So the culprit appears to be a sticky/dirty non-return valve somewhere,
> which is kept closed when pressure is high, but then opens as the pressure
> drops. The pop off valve is keeping in the emergency air, but that's where
> the main air is blowing out from.
>
>
>
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Brake Failure in Yak |
>
> Air is leaking from the emergency air pop off valve in front cockpit on RHS (just
in front of brake valve), which is not supposed to be in circuit with the
main air anyway due to the non-return valves separating them
>
Jorgen,
Following on from Mark & Dennis's comments ... if air is leaking from;
1 - the emergency air protection valve (that will shut @ >5bar pressure) then;
... one or more of the actuator shuttle valves (pea sized rubber balls) is a likely
suspect.
... much less likely but possible is a faulty emergency air NRV that feeds into
the brake valve. Try putting the gear controls in neutral, to vent any residual
air in the actuators, & see if air still escapes from the protection valve.
2 - the cockpit gear selector control then one or more of the gear actuator seals
is a likely suspect (or even the gear selector control itself)
If it helps there are some system schematics (YAK-52) at ...
http://wiki.matronics.com/wiki/index.php/Yak
Cheers, Rob R
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=82830#82830
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Yak-List Digest: 3 Msgs - 12/20/06 |
Andre,
I just had the first annual inspection done on my CJ6 with the Russian M14P
engine. I had Dennis Savarese come out to Salt Lake City and train me
while I assisted in the annual. He is very thorough, to say nothing of
knowledgeable and it was some of the best money I have ever spent. We had a
great time although we did work our proverbial butts off in a cold hanger.
On my last flight before the annual, I couldn't get the gear up. There was
a pneumatic leak hissing on the firewall, which I found in a worn connection
on the T-fitting (Doug Sapp sent me what I needed to replace it). That also
led to my taking the stainless steel water separator apart to replace the
filters. I had just recently purchased the aircraft from an impeccably
thorough owner and it's upkeep was immaculate. That was why I was so
surprised to find about a teaspoon of rust on one side and a teaspoon of
mineral deposits on the other. Of course I cleaned it all out and replaced
the filters as well as running pipe cleaners through the tubing to try to
determine if they had rust in them. They didn't... but it had to come from
somewhere.
We found the culprit when Dennis (Da' Godfadder) and I checked the main air
tank. It was filled with rust, a potentially really bad thing. Needless to
say, Doug got more business when I ordered a new one. Dennis said that it
appeared that this condition occurred with the owner previous to the one I
purchased my airplane from, which made sense.
Well, Dennis is back home in his warn little nest in Alabama and I'm just
waiting for warmer weather to go take my extra large baggage compartment and
super-dooper smoke system out so that I can get to the air tank and replace
it. Again, for relatively little cost and immense rewards in getting to
know your engine, I would highly recommend having Dennis Savarese come out
and give you the course he teaches.
Best of luck, Happy Holidays, and fly safe'
Valkyrie
----- Original Message -----
From: "Yak-List Digest Server" <yak-list@matronics.com>
Sent: Thursday, December 21, 2006 12:58 AM
Subject: Yak-List Digest: 3 Msgs - 12/20/06
> *
>
> =================================================
> Online Versions of Today's List Digest Archive
> =================================================
>
> Today's complete Yak-List Digest can also be found in either of the
> two Web Links listed below. The .html file includes the Digest formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
> of the Yak-List Digest and can be viewed with a generic text editor
> such as Notepad or with a web browser.
>
> HTML Version:
>
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 06-12-20&Archive=Yak
>
> Text Version:
>
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 06-12-20&Archive=Yak
>
>
> ===============================================
> EMail Version of Today's List Digest Archive
> ===============================================
>
>
> ----------------------------------------------------------
> Yak-List Digest Archive
> ---
> Total Messages Posted Wed 12/20/06: 3
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 04:22 AM - yak 55 and m-14 annual condition inspection (Dr Andre
> Katz)
> 2. 05:31 AM - Re: yak 55 and m-14 annual condition inspection
> (Stephen Fox)
> 3. 12:21 PM - Brake Failure in Yak (Jorgen Nielsen)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 04:22:20 AM PST US
> From: Dr Andre Katz <bu131@swbell.net>
> Subject: Yak-List: yak 55 and m-14 annual condition inspection
>
>
> I am ready for an annual and been going thru the
> manuals and wonder if there is an english version of
> the items needed for inspection. the russian manual on
> the m-14 is rather oblique. If any member has an
> engine list of items please let me know. The same
> applies to the 55 model but i suspect that the 52 is
> more complex due to gear etc but i can use one as a
> base.
> happy holidays to the group and many landings next
> year
>
> 777YK and there indeed is nothing like a radial and
> nothing like a radial for aerobatics
> andres
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 05:31:31 AM PST US
> From: Stephen Fox <steve.fox@mac.com>
> Subject: Re: Yak-List: yak 55 and m-14 annual condition inspection
>
>
> Dennis Savarese, I believe, has such a list.
>
> POTUS
> On Dec 20, 2006, at 7:21 AM, Dr Andre Katz wrote:
>
>>
>>
>> I am ready for an annual and been going thru the
>> manuals and wonder if there is an english version of
>> the items needed for inspection. the russian manual on
>> the m-14 is rather oblique. If any member has an
>> engine list of items please let me know. The same
>> applies to the 55 model but i suspect that the 52 is
>> more complex due to gear etc but i can use one as a
>> base.
>> happy holidays to the group and many landings next
>> year
>>
>> 777YK and there indeed is nothing like a radial and
>> nothing like a radial for aerobatics
>> andres
>>
>>
>
>
> ________________________________ Message 3
> _____________________________________
>
>
> Time: 12:21:27 PM PST US
> From: "Jorgen Nielsen" <jorgen.nielsen@mweb.co.za>
> Subject: Yak-List: Brake Failure in Yak
>
>
> 2 weeks back went out in the Yak52 - air was a bit low after the start and
> taxi to fuel bay, then starting again, but still plenty enough based on
> normal operation for the taxi, t/o and retraction. During the taxi I kept
> an
> eye on the air, and just before needing to turn 90 degrees towards 29 (the
> taxiway heads directly for runway centre) I heard air hissing (over the
> noise of the engine with canopy open), glanced down and saw the air down
> from 25 to 15 (this in about 10 secs since my last glance), tried the
> brakes
> and there were no brakes, hence also no directional control. I thought the
> brake reducing valve had failed, booted left rudder to avoid the runway
> signs in front of me, flipped off the mags and immediately told ATC I had
> no
> brakes nor control and was heading for the rwy. There was an aircraft on
> short final. Went onto the grass running towards 11/29 and was busy
> opening
> the emergency air as I rolled to a stop.
>
> I could possibly have deployed the emergency air a bit sooner but thought
> the brakes were gone anyway (as I still had 15 bars) and had my hands were
> full with first trying to miss the rwy sign / comms with ATC / shutting
> down
> engine etc. It all took just a few seconds.
>
> So, no harm done other than a few go-arounds whilst I pushed the aircraft
> clear. The point of all this, is on subsequent investigation we found a
> weird failure mode: When the air is full or above 35, no leaks. As the
> pressure drops a leak starts and become worse as the main air pressure
> reduces, leading to the situation above. Air is leaking from the emergency
> air pop off valve in front cockpit on RHS (just in front of brake valve),
> which is not supposed to be in circuit with the main air anyway due to the
> non-return valves separating them. So the culprit appears to be a
> sticky/dirty non-return valve somewhere, which is kept closed when
> pressure
> is high, but then opens as the pressure drops. The pop off valve is
> keeping
> in the emergency air, but thats where the main air is blowing out from.
>
>
> ATC suggested I take up some extra flying or farming lessons...
>
>
> Any ideas, thoughts on problem?
>
>
>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Brake Failure in Yak |
A word of caustion. I first noticed that the actuation valves for the flap was
stiff. Then the gear actuation valve started to leak. The compressor kept up with
the leak. Minor problem, I thought. The front gear selector valve started
to leak and the compressor was not able to keep up with it. I took the system
apart, air filter and all valves. Everything was filled with this gray stuff,
that if it came out of my nose I'd have to have surgery. The short of it is, big
problems start with small signs. Don't wait. Look into it at the first sign
of a sticking actuation valve or lose of pressure. When its working right its
a great system. When it starts to go wrong, it cascades.
With the help of Doug, I fixed it.
Jim B
>>> yak-list@robrowe.plus.com 12/21/2006 7:55 AM >>>
>
> Air is leaking from the emergency air pop off valve in front cockpit on RHS (just
in front of brake valve), which is not supposed to be in circuit with the
main air anyway due to the non-return valves separating them
>
Jorgen,
Following on from Mark & Dennis's comments ... if air is leaking from;
1 - the emergency air protection valve (that will shut @ >5bar pressure) then;
... one or more of the actuator shuttle valves (pea sized rubber balls) is a likely
suspect.
... much less likely but possible is a faulty emergency air NRV that feeds into
the brake valve. Try putting the gear controls in neutral, to vent any residual
air in the actuators, & see if air still escapes from the protection valve.
2 - the cockpit gear selector control then one or more of the gear actuator seals
is a likely suspect (or even the gear selector control itself)
If it helps there are some system schematics (YAK-52) at ...
http://wiki.matronics.com/wiki/index.php/Yak
Cheers, Rob R
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=82830#82830
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Yak-List Digest: 3 Msgs - 12/20/06 |
Thanks Val. I am truly humbled by your comments.
Happy holidays,
Dennis
----- Original Message -----
From: "Valkyre1" <Valkyre1@comcast.net>
Sent: Thursday, December 21, 2006 9:14 AM
Subject: Yak-List: Re: Yak-List Digest: 3 Msgs - 12/20/06
>
> Andre,
>
> I just had the first annual inspection done on my CJ6 with the Russian
> M14P engine. I had Dennis Savarese come out to Salt Lake City and train
> me while I assisted in the annual. He is very thorough, to say nothing of
> knowledgeable and it was some of the best money I have ever spent. We had
> a great time although we did work our proverbial butts off in a cold
> hanger.
>
> On my last flight before the annual, I couldn't get the gear up. There
> was a pneumatic leak hissing on the firewall, which I found in a worn
> connection on the T-fitting (Doug Sapp sent me what I needed to replace
> it). That also led to my taking the stainless steel water separator apart
> to replace the filters. I had just recently purchased the aircraft from
> an impeccably thorough owner and it's upkeep was immaculate. That was why
> I was so surprised to find about a teaspoon of rust on one side and a
> teaspoon of mineral deposits on the other. Of course I cleaned it all
> out and replaced the filters as well as running pipe cleaners through the
> tubing to try to determine if they had rust in them. They didn't... but
> it had to come from somewhere.
>
> We found the culprit when Dennis (Da' Godfadder) and I checked the main
> air tank. It was filled with rust, a potentially really bad thing.
> Needless to say, Doug got more business when I ordered a new one. Dennis
> said that it appeared that this condition occurred with the owner previous
> to the one I purchased my airplane from, which made sense.
>
> Well, Dennis is back home in his warn little nest in Alabama and I'm just
> waiting for warmer weather to go take my extra large baggage compartment
> and super-dooper smoke system out so that I can get to the air tank and
> replace it. Again, for relatively little cost and immense rewards in
> getting to know your engine, I would highly recommend having Dennis
> Savarese come out and give you the course he teaches.
>
> Best of luck, Happy Holidays, and fly safe'
>
> Valkyrie
> ----- Original Message -----
> From: "Yak-List Digest Server" <yak-list@matronics.com>
> To: "Yak-List Digest List" <yak-list-digest@matronics.com>
> Sent: Thursday, December 21, 2006 12:58 AM
> Subject: Yak-List Digest: 3 Msgs - 12/20/06
>
>
>> *
>>
>> =================================================
>> Online Versions of Today's List Digest Archive
>> =================================================
>>
>> Today's complete Yak-List Digest can also be found in either of the
>> two Web Links listed below. The .html file includes the Digest formatted
>> in HTML for viewing with a web browser and features Hyperlinked Indexes
>> and Message Navigation. The .txt file includes the plain ASCII version
>> of the Yak-List Digest and can be viewed with a generic text editor
>> such as Notepad or with a web browser.
>>
>> HTML Version:
>>
>>
>> http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 06-12-20&Archive=Yak
>>
>> Text Version:
>>
>>
>> http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 06-12-20&Archive=Yak
>>
>>
>> ===============================================
>> EMail Version of Today's List Digest Archive
>> ===============================================
>>
>>
>> ----------------------------------------------------------
>> Yak-List Digest Archive
>> ---
>> Total Messages Posted Wed 12/20/06: 3
>> ----------------------------------------------------------
>>
>>
>> Today's Message Index:
>> ----------------------
>>
>> 1. 04:22 AM - yak 55 and m-14 annual condition inspection (Dr Andre
>> Katz)
>> 2. 05:31 AM - Re: yak 55 and m-14 annual condition inspection
>> (Stephen Fox)
>> 3. 12:21 PM - Brake Failure in Yak (Jorgen Nielsen)
>>
>>
>>
>> ________________________________ Message 1
>> _____________________________________
>>
>>
>> Time: 04:22:20 AM PST US
>> From: Dr Andre Katz <bu131@swbell.net>
>> Subject: Yak-List: yak 55 and m-14 annual condition inspection[LashBack]
>>
>>
>>
>> I am ready for an annual and been going thru the
>> manuals and wonder if there is an english version of
>> the items needed for inspection. the russian manual on
>> the m-14 is rather oblique. If any member has an
>> engine list of items please let me know. The same
>> applies to the 55 model but i suspect that the 52 is
>> more complex due to gear etc but i can use one as a
>> base.
>> happy holidays to the group and many landings next
>> year
>>
>> 777YK and there indeed is nothing like a radial and
>> nothing like a radial for aerobatics
>> andres
>>
>>
>> ________________________________ Message 2
>> _____________________________________
>>
>>
>> Time: 05:31:31 AM PST US
>> From: Stephen Fox <steve.fox@mac.com>
>> Subject: Re: Yak-List: yak 55 and m-14 annual condition
>> inspection[LashBack]
>>
>>
>> Dennis Savarese, I believe, has such a list.
>>
>> POTUS
>> On Dec 20, 2006, at 7:21 AM, Dr Andre Katz wrote:
>>
>>>
>>>
>>> I am ready for an annual and been going thru the
>>> manuals and wonder if there is an english version of
>>> the items needed for inspection. the russian manual on
>>> the m-14 is rather oblique. If any member has an
>>> engine list of items please let me know. The same
>>> applies to the 55 model but i suspect that the 52 is
>>> more complex due to gear etc but i can use one as a
>>> base.
>>> happy holidays to the group and many landings next
>>> year
>>>
>>> 777YK and there indeed is nothing like a radial and
>>> nothing like a radial for aerobatics
>>> andres
>>>
>>>
>>
>>
>> ________________________________ Message 3
>> _____________________________________
>>
>>
>> Time: 12:21:27 PM PST US
>> From: "Jorgen Nielsen" <jorgen.nielsen@mweb.co.za>
>> Subject: Yak-List: Brake Failure in Yak[LashBack]
>>
>>
>> 2 weeks back went out in the Yak52 - air was a bit low after the start
>> and
>> taxi to fuel bay, then starting again, but still plenty enough based on
>> normal operation for the taxi, t/o and retraction. During the taxi I kept
>> an
>> eye on the air, and just before needing to turn 90 degrees towards 29
>> (the
>> taxiway heads directly for runway centre) I heard air hissing (over the
>> noise of the engine with canopy open), glanced down and saw the air down
>> from 25 to 15 (this in about 10 secs since my la
> st glance), tried the
>> brakes
>> and there were no brakes, hence also no directional control. I thought
>> the
>> brake reducing valve had failed, booted left rudder to avoid the runway
>> signs in front of me, flipped off the mags and immediately told ATC I had
>> no
>> brakes nor control and was heading for the rwy. There was an aircraft on
>> short final. Went onto the grass running towards 11/29 and was busy
>> opening
>> the emergency air as I rolled to a stop.
>>
>> I could possibly have deployed the emergency air a bit sooner but thought
>> the brakes were gone anyway (as I still had 15 bars) and had my hands
>> were
>> full with first trying to miss the rwy sign / comms with ATC / shutting
>> down
>> engine etc. It all took just a few seconds.
>>
>> So, no harm done other than a few go-arounds whilst I pushed the aircraft
>> clear. The point of all this, is on subsequent investigation we found a
>> weird failure mode: When the air is full or above 35, no leaks. As the
>> pressure drops a leak starts and become worse as the main air pressure
>> reduces, leading to the situation above. Air is leaking from the
>> emergency
>> air pop off valve in front cockpit on RHS (just in front of brake valve),
>> which is not supposed to be in circuit with the main air anyway due to
>> the
>> non-return valves separating them. So the culprit appears to be a
>> sticky/dirty non-return valve somewhere, which is kept closed when
>> pressure
>> is high, but then opens as the pressure drops. The pop off valve is
>> keeping
>> in the emergency air, but thats where the main air is blowing out from.
>>
>>
>> ATC suggested I take up some extra flying or farming lessons...
>>
>>
>> Any ideas, thoughts on problem?
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Brake Failure in Yak |
No truer words were ever spoken.
Dennis
----- Original Message -----
From: "Jim Bernier" <JBernier@dart.org>
Sent: Thursday, December 21, 2006 9:26 AM
Subject: Yak-List: Re: Brake Failure in Yak
>
> A word of caustion. I first noticed that the actuation valves for the flap
> was stiff. Then the gear actuation valve started to leak. The compressor
> kept up with the leak. Minor problem, I thought. The front gear selector
> valve started to leak and the compressor was not able to keep up with it.
> I took the system apart, air filter and all valves. Everything was filled
> with this gray stuff, that if it came out of my nose I'd have to have
> surgery. The short of it is, big problems start with small signs. Don't
> wait. Look into it at the first sign of a sticking actuation valve or lose
> of pressure. When its working right its a great system. When it starts to
> go wrong, it cascades.
> With the help of Doug, I fixed it.
> Jim B
>
>>>> yak-list@robrowe.plus.com 12/21/2006 7:55 AM >>>
>
>
>>
>> Air is leaking from the emergency air pop off valve in front cockpit on
>> RHS (just in front of brake valve), which is not supposed to be in
>> circuit with the main air anyway due to the non-return valves separating
>> them
>>
>
>
> Jorgen,
>
> Following on from Mark & Dennis's comments ... if air is leaking from;
>
> 1 - the emergency air protection valve (that will shut @ >5bar pressure)
> then;
>
> ... one or more of the actuator shuttle valves (pea sized rubber balls) is
> a likely suspect.
>
> ... much less likely but possible is a faulty emergency air NRV that feeds
> into the brake valve. Try putting the gear controls in neutral, to vent
> any residual air in the actuators, & see if air still escapes from the
> protection valve.
>
> 2 - the cockpit gear selector control then one or more of the gear
> actuator seals is a likely suspect (or even the gear selector control
> itself)
>
> If it helps there are some system schematics (YAK-52) at ...
>
> http://wiki.matronics.com/wiki/index.php/Yak
>
> Cheers, Rob R
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=82830#82830
>
>
>
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Paging Barry Hancock |
Barry Hancock...
Tyson Rininger mentioned you might be providing some assistance with L-39s
as chase planes for this Javelin Jet.
My email is pilotashley@gmail.com if you know anything about it. I have a
few questions.
Thanks,
Ashley Battles
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Brake Failure in Yak |
>>....Everything was filled with this gray stuff<<
Please, whats the gray stuff?
--- "A. Dennis Savarese" <dsavarese@elmore.rr.com>
wrote:
> <dsavarese@elmore.rr.com>
>
> No truer words were ever spoken.
> Dennis
>
> ----- Original Message -----
> From: "Jim Bernier" <JBernier@dart.org>
> To: <yak-list@matronics.com>
> Sent: Thursday, December 21, 2006 9:26 AM
> Subject: Yak-List: Re: Brake Failure in Yak
>
>
> <JBernier@dart.org>
> >
> > A word of caustion. I first noticed that the
> actuation valves for the flap
> > was stiff. Then the gear actuation valve started
> to leak. The compressor
> > kept up with the leak. Minor problem, I thought.
> The front gear selector
> > valve started to leak and the compressor was not
> able to keep up with it.
> > I took the system apart, air filter and all
> valves. Everything was filled
> > with this gray stuff, that if it came out of my
> nose I'd have to have
> > surgery. The short of it is, big problems start
> with small signs. Don't
> > wait. Look into it at the first sign of a sticking
> actuation valve or lose
> > of pressure. When its working right its a great
> system. When it starts to
> > go wrong, it cascades.
> > With the help of Doug, I fixed it.
> > Jim B
> >
> >>>> yak-list@robrowe.plus.com 12/21/2006 7:55 AM
> >>>
> <yak-list@robrowe.plus.com>
> >
> >
> >>
> >> Air is leaking from the emergency air pop off
> valve in front cockpit on
> >> RHS (just in front of brake valve), which is not
> supposed to be in
> >> circuit with the main air anyway due to the
> non-return valves separating
> >> them
> >>
> >
> >
> > Jorgen,
> >
> > Following on from Mark & Dennis's comments ... if
> air is leaking from;
> >
> > 1 - the emergency air protection valve (that will
> shut @ >5bar pressure)
> > then;
> >
> > ... one or more of the actuator shuttle valves
> (pea sized rubber balls) is
> > a likely suspect.
> >
> > ... much less likely but possible is a faulty
> emergency air NRV that feeds
> > into the brake valve. Try putting the gear
> controls in neutral, to vent
> > any residual air in the actuators, & see if air
> still escapes from the
> > protection valve.
> >
> > 2 - the cockpit gear selector control then one or
> more of the gear
> > actuator seals is a likely suspect (or even the
> gear selector control
> > itself)
> >
> > If it helps there are some system schematics
> (YAK-52) at ...
> >
> > http://wiki.matronics.com/wiki/index.php/Yak
> >
> > Cheers, Rob R
> >
> >
> >
> >
> > Read this topic online here:
> >
> >
>
http://forums.matronics.com/viewtopic.php?p=82830#82830
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
> Click on
> about
> provided
> www.buildersbooks.com
> Admin.
>
> browse
> Subscriptions page,
> FAQ,
> http://www.matronics.com/Navigator?Yak-List
>
>
>
>
>
__________________________________________________
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Air filter vs "grey stuff" |
Dennis, Jim and all,
Below is a note I recently sent to a fellow CJ owner (with slight
modifications) who was have QSF-2A problems believe it describes the
problem correctly:
OK son, sit down and listen to the sermon of the day! I'm gonna say
all this in just one breath......I know it by heart!
You aint paying enough attention to your dessicant filter, your air is
funky chump! The filter is the "lungs" of your CJ and the QSF2A's will
last many times longer if you keep the air clean and dry. What kills
them is rust and water in your air system. KEEP YOUR WATER FILTER
SERVICED and you won't be having problems. Remember, these aircraft
were made to be maintained by hundreds of little hands, they are checked
and prodded and poked every day by a horde of faithful ground crews.
The filter kit is only $17.50, put in a new set, check it after just 2-3
hours, I'll bet it is already in need of changing, if it is what is
happening is that you system is being dried out, (be patient
grasshopper, it may take a while to purge the "wages of your past
transgressions") so install another kit and keep the "old one" on hand.
Recheck the dessicant color in the filter in 5-6 hours to see if the
dessicant is still blue. If it is not blue then take your old kit, wash
out the filters, take the dessicant and place it in a metal pan in a
electric oven (not gas, gas is too wet) and cook the water back out of
it @ about 125 degrees or so (you can do this many times). It will turn
dark blue again if it is not full of oil and nastyness. Once it is dark
blue again store it in a zip lock inside of a mason jar with a good seal
and it will be good to go (still dark blue if the jar seal is good and
tight) when you need it again. What you need to discover is the
"change interval" for your area. I am in the high desert and humidity
here is lower than the moisture content of a popcorn fart, so I change
mine out about every 10 hours or every 3 months. Guys who live in
Florida have a real problem with humidity, that is why Jim Goolsby has
so much trouble with his air system, while the guys in AZ can go 6
months between changes. If cooking the dessicant is too much hassle, I
keep the kits in stock all the time.
Ok so I cheated, I took a breath right around the popcorn fart--
Best Christmas wishes from both Kathleen and myself, I hope your
surrounded by family and all the joys of Christmas.
Always Yakin,
Doug and Kathleen
A. Dennis Savarese wrote:
> <dsavarese@elmore.rr.com>
>
> No truer words were ever spoken.
> Dennis
>
> ----- Original Message ----- From: "Jim Bernier" <JBernier@dart.org>
> To: <yak-list@matronics.com>
> Sent: Thursday, December 21, 2006 9:26 AM
> Subject: Yak-List: Re: Brake Failure in Yak
>
>
>>
>> A word of caustion. I first noticed that the actuation valves for the
>> flap was stiff. Then the gear actuation valve started to leak. The
>> compressor kept up with the leak. Minor problem, I thought. The front
>> gear selector valve started to leak and the compressor was not able
>> to keep up with it. I took the system apart, air filter and all
>> valves. Everything was filled with this gray stuff, that if it came
>> out of my nose I'd have to have surgery. The short of it is, big
>> problems start with small signs. Don't wait. Look into it at the
>> first sign of a sticking actuation valve or lose of pressure. When
>> its working right its a great system. When it starts to go wrong, it
>> cascades.
>> With the help of Doug, I fixed it.
>> Jim B
>>
>>>>> yak-list@robrowe.plus.com 12/21/2006 7:55 AM >>>
>>>>
>>
>>
>>>
>>> Air is leaking from the emergency air pop off valve in front cockpit
>>> on RHS (just in front of brake valve), which is not supposed to be
>>> in circuit with the main air anyway due to the non-return valves
>>> separating them
>>>
>>
>>
>> Jorgen,
>>
>> Following on from Mark & Dennis's comments ... if air is leaking from;
>>
>> 1 - the emergency air protection valve (that will shut @ >5bar
>> pressure) then;
>>
>> ... one or more of the actuator shuttle valves (pea sized rubber
>> balls) is a likely suspect.
>>
>> ... much less likely but possible is a faulty emergency air NRV that
>> feeds into the brake valve. Try putting the gear controls in neutral,
>> to vent any residual air in the actuators, & see if air still escapes
>> from the protection valve.
>>
>> 2 - the cockpit gear selector control then one or more of the gear
>> actuator seals is a likely suspect (or even the gear selector control
>> itself)
>>
>> If it helps there are some system schematics (YAK-52) at ...
>>
>> http://wiki.matronics.com/wiki/index.php/Yak
>>
>> Cheers, Rob R
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=82830#82830
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Air filter vs "grey stuff" |
I feel appropriately admonished, Doug. Please send me a new dessicant kit.
Also, in Marin, we only cook with gas, you know. Whether you're preparing
crepes or souffle, the temperature of the range or oven is easier to precisely
control with gas. I'm sure Dave King would agree. Sooo, would one of those
electric toaster oven things work for drying as well? (Just don't tell Martha.)
...Blitz
Byron M. Fox
80 Milland Drive
Mill Valley, CA 94941
Cell 415-307-2405
Home 415-380-0907
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Air filter vs "grey stuff" |
I got the kit with the new air filter (I had one of the "short" Chinese
originals) and OMG, IT IS SO MUCH BETTER than the old one.
Jon
>From: Doug Sapp <rvfltd@televar.com>
>To: yak-list@matronics.com
>Subject: Yak-List: Air filter vs "grey stuff"
>Date: Thu, 21 Dec 2006 10:40:36 -0800
>
>
>Dennis, Jim and all,
>Below is a note I recently sent to a fellow CJ owner (with slight
>modifications) who was have QSF-2A problems believe it describes the
>problem correctly:
>
>
>OK son, sit down and listen to the sermon of the day! I'm gonna say all
>this in just one breath......I know it by heart!
>You aint paying enough attention to your dessicant filter, your air is
>funky chump! The filter is the "lungs" of your CJ and the QSF2A's will last
>many times longer if you keep the air clean and dry. What kills them is
>rust and water in your air system. KEEP YOUR WATER FILTER SERVICED and you
>won't be having problems. Remember, these aircraft were made to be
>maintained by hundreds of little hands, they are checked and prodded and
>poked every day by a horde of faithful ground crews. The filter kit is
>only $17.50, put in a new set, check it after just 2-3 hours, I'll bet it
>is already in need of changing, if it is what is happening is that you
>system is being dried out, (be patient grasshopper, it may take a while to
>purge the "wages of your past transgressions") so install another kit and
>keep the "old one" on hand. Recheck the dessicant color in the filter in
>5-6 hours to see if the dessicant is still blue. If it is not blue then
>take your old kit, wash out the filters, take the dessicant and place it in
>a metal pan in a electric oven (not gas, gas is too wet) and cook the water
>back out of it @ about 125 degrees or so (you can do this many times). It
>will turn dark blue again if it is not full of oil and nastyness. Once it
>is dark blue again store it in a zip lock inside of a mason jar with a good
>seal and it will be good to go (still dark blue if the jar seal is good and
>tight) when you need it again. What you need to discover is the "change
>interval" for your area. I am in the high desert and humidity here is
>lower than the moisture content of a popcorn fart, so I change mine out
>about every 10 hours or every 3 months. Guys who live in Florida have a
>real problem with humidity, that is why Jim Goolsby has so much trouble
>with his air system, while the guys in AZ can go 6 months between changes.
>If cooking the dessicant is too much hassle, I keep the kits in stock all
>the time.
>
>Ok so I cheated, I took a breath right around the popcorn fart--
>
>Best Christmas wishes from both Kathleen and myself, I hope your surrounded
>by family and all the joys of Christmas.
>
>Always Yakin,
>Doug and Kathleen
>
>
>A. Dennis Savarese wrote:
>
>><dsavarese@elmore.rr.com>
>>
>>No truer words were ever spoken.
>>Dennis
>>
>>----- Original Message ----- From: "Jim Bernier" <JBernier@dart.org>
>>To: <yak-list@matronics.com>
>>Sent: Thursday, December 21, 2006 9:26 AM
>>Subject: Yak-List: Re: Brake Failure in Yak
>>
>>
>>>
>>>A word of caustion. I first noticed that the actuation valves for the
>>>flap was stiff. Then the gear actuation valve started to leak. The
>>>compressor kept up with the leak. Minor problem, I thought. The front
>>>gear selector valve started to leak and the compressor was not able to
>>>keep up with it. I took the system apart, air filter and all valves.
>>>Everything was filled with this gray stuff, that if it came out of my
>>>nose I'd have to have surgery. The short of it is, big problems start
>>>with small signs. Don't wait. Look into it at the first sign of a
>>>sticking actuation valve or lose of pressure. When its working right its
>>>a great system. When it starts to go wrong, it cascades.
>>>With the help of Doug, I fixed it.
>>>Jim B
>>>
>>>>>>yak-list@robrowe.plus.com 12/21/2006 7:55 AM >>>
>>>>>
>>>
>>>
>>>>
>>>>Air is leaking from the emergency air pop off valve in front cockpit on
>>>>RHS (just in front of brake valve), which is not supposed to be in
>>>>circuit with the main air anyway due to the non-return valves separating
>>>>them
>>>>
>>>
>>>
>>>Jorgen,
>>>
>>>Following on from Mark & Dennis's comments ... if air is leaking from;
>>>
>>>1 - the emergency air protection valve (that will shut @ >5bar pressure)
>>>then;
>>>
>>>... one or more of the actuator shuttle valves (pea sized rubber balls)
>>>is a likely suspect.
>>>
>>>... much less likely but possible is a faulty emergency air NRV that
>>>feeds into the brake valve. Try putting the gear controls in neutral, to
>>>vent any residual air in the actuators, & see if air still escapes from
>>>the protection valve.
>>>
>>>2 - the cockpit gear selector control then one or more of the gear
>>>actuator seals is a likely suspect (or even the gear selector control
>>>itself)
>>>
>>>If it helps there are some system schematics (YAK-52) at ...
>>>
>>>http://wiki.matronics.com/wiki/index.php/Yak
>>>
>>>Cheers, Rob R
>>>
>>>
>>>
>>>
>>>Read this topic online here:
>>>
>>>http://forums.matronics.com/viewtopic.php?p=82830#82830
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 13
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Yak-List Digest: 3 Msgs - 12/20/06 |
hello Val that sounds like a great idea, will talk to him and see when he can come
by. dallas is along way. where does he hail from?
happy holidays
andres
Valkyre1 <Valkyre1@comcast.net> wrote:
Andre,
I just had the first annual inspection done on my CJ6 with the Russian M14P
engine. I had Dennis Savarese come out to Salt Lake City and train me
while I assisted in the annual. He is very thorough, to say nothing of
knowledgeable and it was some of the best money I have ever spent. We had a
great time although we did work our proverbial butts off in a cold hanger.
On my last flight before the annual, I couldn't get the gear up. There was
a pneumatic leak hissing on the firewall, which I found in a worn connection
on the T-fitting (Doug Sapp sent me what I needed to replace it). That also
led to my taking the stainless steel water separator apart to replace the
filters. I had just recently purchased the aircraft from an impeccably
thorough owner and it's upkeep was immaculate. That was why I was so
surprised to find about a teaspoon of rust on one side and a teaspoon of
mineral deposits on the other. Of course I cleaned it all out and replaced
the filters as well as running pipe cleaners through the tubing to try to
determine if they had rust in them. They didn't... but it had to come from
somewhere.
We found the culprit when Dennis (Da' Godfadder) and I checked the main air
tank. It was filled with rust, a potentially really bad thing. Needless to
say, Doug got more business when I ordered a new one. Dennis said that it
appeared that this condition occurred with the owner previous to the one I
purchased my airplane from, which made sense.
Well, Dennis is back home in his warn little nest in Alabama and I'm just
waiting for warmer weather to go take my extra large baggage compartment and
super-dooper smoke system out so that I can get to the air tank and replace
it. Again, for relatively little cost and immense rewards in getting to
know your engine, I would highly recommend having Dennis Savarese come out
and give you the course he teaches.
Best of luck, Happy Holidays, and fly safe'
Valkyrie
----- Original Message -----
From: "Yak-List Digest Server"
Sent: Thursday, December 21, 2006 12:58 AM
Subject: Yak-List Digest: 3 Msgs - 12/20/06
> *
>
> =================================================
> Online Versions of Today's List Digest Archive
> =================================================
>
> Today's complete Yak-List Digest can also be found in either of the
> two Web Links listed below. The .html file includes the Digest formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
> of the Yak-List Digest and can be viewed with a generic text editor
> such as Notepad or with a web browser.
>
> HTML Version:
>
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 06-12-20&Archive=Yak
>
> Text Version:
>
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 06-12-20&Archive=Yak
>
>
> ===============================================
> EMail Version of Today's List Digest Archive
> ===============================================
>
>
> ----------------------------------------------------------
> Yak-List Digest Archive
> ---
> Total Messages Posted Wed 12/20/06: 3
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 04:22 AM - yak 55 and m-14 annual condition inspection (Dr Andre
> Katz)
> 2. 05:31 AM - Re: yak 55 and m-14 annual condition inspection
> (Stephen Fox)
> 3. 12:21 PM - Brake Failure in Yak (Jorgen Nielsen)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 04:22:20 AM PST US
> From: Dr Andre Katz
> Subject: Yak-List: yak 55 and m-14 annual condition inspection
>
>
> I am ready for an annual and been going thru the
> manuals and wonder if there is an english version of
> the items needed for inspection. the russian manual on
> the m-14 is rather oblique. If any member has an
> engine list of items please let me know. The same
> applies to the 55 model but i suspect that the 52 is
> more complex due to gear etc but i can use one as a
> base.
> happy holidays to the group and many landings next
> year
>
> 777YK and there indeed is nothing like a radial and
> nothing like a radial for aerobatics
> andres
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 05:31:31 AM PST US
> From: Stephen Fox
> Subject: Re: Yak-List: yak 55 and m-14 annual condition inspection
>
>
> Dennis Savarese, I believe, has such a list.
>
> POTUS
> On Dec 20, 2006, at 7:21 AM, Dr Andre Katz wrote:
>
>>
>>
>> I am ready for an annual and been going thru the
>> manuals and wonder if there is an english version of
>> the items needed for inspection. the russian manual on
>> the m-14 is rather oblique. If any member has an
>> engine list of items please let me know. The same
>> applies to the 55 model but i suspect that the 52 is
>> more complex due to gear etc but i can use one as a
>> base.
>> happy holidays to the group and many landings next
>> year
>>
>> 777YK and there indeed is nothing like a radial and
>> nothing like a radial for aerobatics
>> andres
>>
>>
>
>
> ________________________________ Message 3
> _____________________________________
>
>
> Time: 12:21:27 PM PST US
> From: "Jorgen Nielsen"
> Subject: Yak-List: Brake Failure in Yak
>
>
> 2 weeks back went out in the Yak52 - air was a bit low after the start and
> taxi to fuel bay, then starting again, but still plenty enough based on
> normal operation for the taxi, t/o and retraction. During the taxi I kept
> an
> eye on the air, and just before needing to turn 90 degrees towards 29 (the
> taxiway heads directly for runway centre) I heard air hissing (over the
> noise of the engine with canopy open), glanced down and saw the air down
> from 25 to 15 (this in about 10 secs since my last glance), tried the
> brakes
> and there were no brakes, hence also no directional control. I thought the
> brake reducing valve had failed, booted left rudder to avoid the runway
> signs in front of me, flipped off the mags and immediately told ATC I had
> no
> brakes nor control and was heading for the rwy. There was an aircraft on
> short final. Went onto the grass running towards 11/29 and was busy
> opening
> the emergency air as I rolled to a stop.
>
> I could possibly have deployed the emergency air a bit sooner but thought
> the brakes were gone anyway (as I still had 15 bars) and had my hands were
> full with first trying to miss the rwy sign / comms with ATC / shutting
> down
> engine etc. It all took just a few seconds.
>
> So, no harm done other than a few go-arounds whilst I pushed the aircraft
> clear. The point of all this, is on subsequent investigation we found a
> weird failure mode: When the air is full or above 35, no leaks. As the
> pressure drops a leak starts and become worse as the main air pressure
> reduces, leading to the situation above. Air is leaking from the emergency
> air pop off valve in front cockpit on RHS (just in front of brake valve),
> which is not supposed to be in circuit with the main air anyway due to the
> non-return valves separating them. So the culprit appears to be a
> sticky/dirty non-return valve somewhere, which is kept closed when
> pressure
> is high, but then opens as the pressure drops. The pop off valve is
> keeping
> in the emergency air, but thats where the main air is blowing out from.
>
>
> ATC suggested I take up some extra flying or farming lessons...
>
>
> Any ideas, thoughts on problem?
>
>
>
Message 14
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Air filter vs "grey stuff" |
We just replaced our $250 solenoid start valve which was damaged beyond
repair from water. I expect prior, diligent use of Doug's $17.50 "Blue Light
Special" would have prevented the damage and saved the several hours spent trying
to o/h the old unit.
Dave
Yak-List message posted by: Doug Sapp <rvfltd@televar.com>
>
>Dennis, Jim and all,
>Below is a note I recently sent to a fellow CJ owner (with slight
>modifications) who was have QSF-2A problems believe it describes the
>problem correctly:
>
>
>OK son, sit down and listen to the sermon of the day! I'm gonna say all
>this in just one breath......I know it by heart!
>You aint paying enough attention to your dessicant filter, your air is
>funky chump! The filter is the "lungs" of your CJ and the QSF2A's will last
>many times longer if you keep the air clean and dry. What kills them is
>rust and water in your air system. KEEP YOUR WATER FILTER SERVICED and you
>won't be having problems. Remember, these aircraft were made to be
>maintained by hundreds of little hands, they are checked and prodded and
>poked every day by a horde of faithful ground crews. The filter kit is
>only $17.50, put in a new set, check it after just 2-3 hours, I'll bet it
>is already in need of changing, if it is what is happening is that you
>system is being dried out, (be patient grasshopper, it may take a while to
>purge the "wages of your past transgressions") so install another kit and
>keep the "old one" on hand. Recheck the dessicant color in the filter in
>5-6 hours to see if the dessicant is still blue. If it is not blue then
>take your old kit, wash out the filters, take the dessicant and place it in
>a metal pan in a electric oven (not gas, gas is too wet) and cook the water
>back out of it @ about 125 degrees or so (you can do this many times). It
>will turn dark blue again if it is not full of oil and nastyness. Once it
>is dark blue again store it in a zip lock inside of a mason jar with a good
>seal and it will be good to go (still dark blue if the jar seal is good and
>tight) when you need it again. What you need to discover is the "change
>interval" for your area. I am in the high desert and humidity here is
>lower than the moisture content of a popcorn fart, so I change mine out
>about every 10 hours or every 3 months. Guys who live in Florida have a
>real problem with humidity, that is why Jim Goolsby has so much trouble
>with his air system, while the guys in AZ can go 6 months between changes.
>If cooking the dessicant is too much hassle, I keep the kits in stock all
>the time.
>
>Ok so I cheated, I took a breath right around the popcorn fart--
>
>Best Christmas wishes from both Kathleen and myself, I hope your surrounded
>by family and all the joys of Christmas.
>
>Always Yakin,
>Doug and Kathleen
Message 15
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Yak-List Digest: 3 Msgs - 12/20/06 |
Milbrook, Alabama..
----- Original Message -----
From: Dr Andre Katz
Sent: 12/21/2006 3:43:56 PM
Subject: Re: Yak-List: Re: Yak-List Digest: 3 Msgs - 12/20/06
hello Val that sounds like a great idea, will talk to him and see when he can come
by. dallas is along way. where does he hail from?
happy holidays
andres
Valkyre1 <Valkyre1@comcast.net> wrote:
Andre,
I just had the first annual inspection done on my CJ6 with the Russian M14P
engine. I had Dennis Savarese come out to Salt Lake City and train me
while I assisted in the annual. He is very thorough, to say nothing of
knowledgeable and it was some of the best money I have ever spent. We had a
great time although we did work our proverbial butts off in a cold hanger.
On my last flight before the annual, I couldn't get the gear up. There was
a pneumatic leak hissing on the firewall, which I found in a worn connection
on the T-fitting (Doug Sapp sent me what I needed to replace it). That also
led to my taking the stainless steel water separator apart to replace the
filters. I had just recently purchased the aircraft from an impeccably
thorough owner and it's upkeep was immaculate. That was why I was so
surprised to find about a teaspoon of rust on one side and a teaspoon of
mineral deposits on the other. Of course I cleaned it all out and replaced
the filters as well as running pipe cleaners through the tubing to try to
determine if they had rust in them. They didn't... but it had to come from
somewhere.
We found the culprit when Dennis (Da' Godfadder) and I checked the main air
tank. It was filled with rust, a potentially really bad thing. Needless to
say, Doug got more business when I ordered a new one. Dennis said that it
appeared that this condition occurred with the owner previous to the one I
purchased my airplane from, which made sense.
Well, Dennis is back home in his warn little nest in Alabama and I'm just
waiting for warmer weather to go take my extra large baggage compartment and
super-dooper smoke system out so that I can get to the air tank and replace
it. Again, for relatively little cost and immense rewards in getting to
know your engine, I would highly recommend having Dennis Savarese come out
and give you the course he teaches.
Best of luck, Happy Holidays, and fly safe'
Valkyrie
----- Original Message -----
From: "Yak-List Digest Server"
Sent: Thursday, December 21, 2006 12:58 AM
Subject: Yak-List Digest: 3 Msgs - 12/20/06
> *
>
> =================================================
> Online Versions of Today's List Digest Archive
> =================================================
>
> Today's complete Yak-List Digest can also be found in either of the
> two Web Links listed below. The .html file includes the Digest formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
> of the Yak-List Digest and can be viewed with a generic text editor
> such as Notepad or with a web browser.
>
> HTML Version:
>
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 06-12-20&Archive=Yak
>
> Text Version:
>
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 06-12-20&Archive=Yak
>
>
> ===============================================
> EMail Version of Today's List Digest Archive
> ===============================================
>
>
> ----------------------------------------------------------
> Yak-List Digest Archive
> ---
> Total Messages Posted Wed 12/20/06: 3
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 04:22 AM - yak 55 and m-14 annual condition inspection (Dr Andre
> Katz)
> 2. 05:31 AM - Re: yak 55 and m-14 annual condition inspection
> (Stephen Fox)
> 3. 12:21 PM - Brake Failure in Yak (Jorgen Nielsen)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 04:22:20 AM PST US
> From: Dr Andre Katz
> Subject: Yak-List: yak 55 and m-14 annual condition inspection
>
>
> I am ready for an annual and been going thru the
> manuals and wonder if there is an english version of
> the items needed for inspection. the russian manual on
> the m-14 is rather oblique. If any member has an
> engine list of items please let me know. The same
> applies to the 55 model but i suspect that the 52 is
> more complex due to gear etc but i can use one as a
> base.
> happy holidays to the group and many landings next
> year
>
> 777YK and there indeed is nothing like a radial and
> nothing like a radial for aerobatics
> andres
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 05:31:31 AM PST US
> From: Stephen Fox
> Subject: Re: Yak-List: yak 55 and m-14 annual condition inspection
>
>
> Dennis Savarese, I believe, has such a list.
>
> POTUS
> On Dec 20, 2006, at 7:21 AM, Dr Andre Katz wrote:
>
>>
>>
>> I am ready for an annual and been going thru the
>> manuals and wonder if there is an english version of
>> the items needed for inspection. the russian manual on
>> the m-14 is rather oblique. If any member has an
>> engine list of items please let me know. The same
>> applies to the 55 model but i suspect that the 52 is
>> more complex due to gear etc but i can use one as a
>> base.
>> happy holidays to the group and many landings next
>> year
>>
>> 777YK and there indeed is nothing like a radial and
>> nothing like a radial for aerobatics
>> andres
>>
>>
>
>
> ________________________________ Message 3
> _____________________________________
>
>
> Time: 12:21:27 PM PST US
> From: "Jorgen Nielsen"
> Subject: Yak-List: Brake Failure in Yak
>
>
> 2 weeks back went out in the Yak52 - air was a bit low after the start and
> taxi to fuel bay, then starting again, but still plenty enough based on
> normal operation for the taxi, t/o and retraction. During the taxi I kept
> an
> eye on the air, and just before needing to turn 90 degrees towards 29 (the
> taxiway heads directly for runway centre) I heard air hissing (over the
> noise of the engine with canopy open), glanced down and saw the air down
> from 25 to 15 (this in about 10 secs since my last glance), tried the
> brakes
> and there were no brakes, hence also no directional control. I thought the
> brake reducing valve had failed, booted left rudder to avoid the runway
> signs in front of me, flipped off the mags and immediately told ATC I had
> no
> brakes nor control and was heading for the rwy. There was an aircraft on
> short final. Went onto the grass running towards 11/29 and was busy
> opening
> the emergency air as I rolled to a stop.
>
> I could possibly have deployed the emergency air a bit sooner but thought
> the brakes were gone anyway (as I still had 15 bars) and had my hands were
> full with first trying to miss the rwy sign / comms with ATC / shutting
> down
> engine etc. It all took just a few seconds.
>
> So, no harm done other than a few go-arounds whilst I pushed the aircraft
> clear. The point of all this, is on subsequent investigation we found a
> weird failure mode: When the air is full or above 35, no leaks. As the
> pressure drops a leak starts and become worse as the main air pressure
> reduces, leading to the situation above. Air is leaking from the emergency
> air pop off valve in front cockpit on RHS (just in front of brake
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|