Today's Message Index:
----------------------
1. 12:26 AM - flamed (Mark Jefferies YAK UK Ltd)
2. 12:39 AM - Re: Re: Gear fails to retract (Mark Jefferies YAK UK Ltd)
3. 04:12 AM - Re: Valve Problems (cpayne@joimail.com)
4. 04:14 AM - Dryer (JL)
5. 04:34 AM - Re: Dryer (A. Dennis Savarese)
6. 06:41 AM - Re: Becker Radios and vibration? (Ernie)
7. 06:41 AM - Re: Re: Gear fails to retract (Ernie)
8. 06:45 AM - Re: flamed (Ernie)
9. 07:01 AM - Re: Re: Gear fails to retract (jay reiter)
10. 08:07 AM - Re: Re: Gear fails to retract (A. Dennis Savarese)
11. 08:37 AM - Re: Re: Gear fails to retract (Jim Ivey)
12. 09:26 AM - Re: Re: Gear fails to retract (Walt Lannon)
13. 09:36 AM - Re: Re: Valve Problems (Walt Lannon)
14. 10:06 AM - Re: Re: Gear fails to retract (BUTLER, FRANCIS)
15. 10:32 AM - Re: Microair Radios (Brian Lloyd)
16. 11:04 AM - Microair Radios (Frank Haertlein)
17. 01:03 PM - Re: Becker Radios and vibration? (Coffey, John)
18. 02:52 PM - Re: Re: Gear fails to retract (Gus Fraser)
19. 02:53 PM - other radios (was: Becker Radios and vibration?) (Brian Lloyd)
20. 03:06 PM - Yak-52 v. CJ ACM (Barry Hancock)
21. 03:48 PM - CJ6A: retracting the gear in-flight after using the emergency system (Brian Lloyd)
22. 04:04 PM - Re: CJ6A: retracting the gear in-flight after using the emergency system (A. Dennis Savarese)
23. 04:08 PM - Re: Valve questions (Brian Lloyd)
24. 04:18 PM - Re: CJ-List (Brian Lloyd)
25. 04:52 PM - Re: Re: CJ-List ()
26. 05:05 PM - Re: Re: Gear fails to retract (Rick Basiliere)
27. 05:26 PM - Re: CJ6A: retracting the gear in-flight after using the (Brian Lloyd)
28. 08:47 PM - Torque Value (Dennis Von Ruden)
29. 09:09 PM - Re: Torque Value (joe h)
30. 09:43 PM - RPA Web Project (Drew Blahnick)
Message 1
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--> Yak-List message posted by: "Mark Jefferies YAK UK Ltd" <mark@yakuk.com>
Time: 06:24:52 AM PST US
From: "Stuart Mackereth" <stuart@bramptonyork.com>
Subject: Yak-List: CJ-List
>--> Yak-List message posted by: "Stuart Mackereth" <stuart@bramptonyork.com>
>At the risk of getting flamed, is there any reason why there is not both
>a CJ-List and a Yak-List ?
Stu, the CJ is a copy of the YAK 18A so basically its a YAK, no need for a second
list. The CJ is an older design but like the YAK 52 I believe its still in
production. It could benefit from some of the "tweaks" to upgrade the a/c that
the 52 has had but its still a good a/c. See the front cover and 6 page article
in "Pilot" magazine this month.
You will find the article at www.pilotweb.co.uk this is the main page or the individual page is at http://www.pilotweb.co.uk/content/issues/view_issue.aspx?issue636
This is one of only 2 CJ in the UK. Its not very popular over here, by contrast
the newer and more able a/c the YAK 52 has approx 70 examples in the UK.
happy hols to all. mark j
Ps :>)))))
Best regards
Mark Jefferies
: Managing director YAK UK Ltd
Little Gransden Airfield, Sandy, Beds SG19 3BP, England.
( +44 (0)1767 651156 Office + 651157 fax
( +44 (0)7785 538 317 Mobile
: Conditions/ terms of business
Message 2
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| Subject: | Re: Gear fails to retract |
HTML_FONTCOLOR_BLUE, HTML_FONTCOLOR_GREEN, HTML_FONTCOLOR_RED,
--> Yak-List message posted by: "Mark Jefferies YAK UK Ltd" <mark@yakuk.com>
Time: 10:55:33 AM PST US
From: "Jim Selby" <jimscjs@mbay.net>
Subject: Re: Gear fails to retract
--> Yak-List message posted by: "Jim Selby" <jimscjs@mbay.net>
You could have a sticking valve, but I have found you have to be sure that
you bleed off all the air completely from both systems to zero, I break the
lines loose at the firewall right side upper line that goes to the Check
valve, this will do the emergency side and one will do the main side, then
refill the system and try it again, if it still does not work then you may
have a leaking valve someplace.
Jim
The example above is where the CJ could benefit from the automatic leak valve being
fitted as per the YAK 52. For those that don't know its fitted under the
front seat right side on the YAK 52 and instrument panel right side on the YAK
50.
no need to get spanners and lock wire out once fitted and no more aborted flights
due to legs not\retracting.
Just one of those upgrades that YAK invented with the later a/c !!! :>))
Best regards
Mark Jefferies
: Managing director YAK UK Ltd
Little Gransden Airfield, Sandy, Beds SG19 3BP, England.
( +44 (0)1767 651156 Office + 651157 fax
( +44 (0)7785 538 317 Mobile
: Conditions/ terms of business
Message 3
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| Subject: | Re: Valve Problems |
--> Yak-List message posted by: cpayne@joimail.com
Walt,
If air pressure remained in the system but the Emergency
system were to be deployed, should not the pressure be bleed
off between steps 2 and 3? This is the in-flight procedure I
was taught.
Craig Payne
>Emerg Gear Extension:
>1. Close main air valve
>2. Gear lever neutral
>3. Open Emerg. air
>4. Gear lever down
>5. Engage safety latch
Message 4
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--> Yak-List message posted by: JL <jland@popeandland.com>
Has anyone cleaned the dryer in the air system and replaced the filters and
crystals in it? I took mine apart this weekend and its a mess. I need to
know where to get some fresh "stuff" to put back in it.
Thanks,
Jay Land
Message 5
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--> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net>
Contact Doug Sapp. He has all the stuff you need.
Happy holidays,
Dennis
----- Original Message -----
From: "JL" <jland@popeandland.com>
Subject: Yak-List: Dryer
> --> Yak-List message posted by: JL <jland@popeandland.com>
>
> Has anyone cleaned the dryer in the air system and replaced the filters
and
> crystals in it? I took mine apart this weekend and its a mess. I need to
> know where to get some fresh "stuff" to put back in it.
>
> Thanks,
>
> Jay Land
>
>
Message 6
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| Subject: | Re: Becker Radios and vibration? |
--> Yak-List message posted by: "Ernie" <ernest.martinez@oracle.com>
I had the Becker 3201(older version of the 4201) Comm in my CJ. I had no
problem with vibration, but I did have a problem with moisture. Whenever I
left the airplane outdoors the radio wouldnt work untill I had started the
engine and let it warm up for a while up to 10 minutes sometimes. I
eventually pulled it out and put in a 430.
Ernie
----- Original Message -----
From: "Drew Blahnick" <aapilot@adelphia.net>
Subject: Yak-List: Becker Radios and vibration?
> --> Yak-List message posted by: "Drew Blahnick" <aapilot@adelphia.net>
>
> Folks,
>
> Anyone using the becker line of 2 1/4 inch comm radio (AR 4201) and
transponder? I'm being told they do not hold up well in high vibration
aircraft. This could be rumor, if anyone is using them please let me know,
>
> Drew
>
>
> Drew Blahnick
> RedStar Pilots Assoc.
> 310.872.0754
> "Communism: Lousy Politics-Excellent Airplanes"
>
>
Message 7
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| Subject: | Re: Gear fails to retract |
--> Yak-List message posted by: "Ernie" <ernest.martinez@oracle.com>
I have a question here. If the gear is locked down by pneumatic pressure,
wouldnt bleeding the air then cause the gear to collapse?
Ernie
----- Original Message -----
From: "Walt Lannon" <lannon@look.ca>
Subject: Re: Yak-List: Re: Gear fails to retract
> --> Yak-List message posted by: "Walt Lannon" <lannon@look.ca>
>
> Right on Jim, the emergency down system by design retains pressure in the
> down circuit and must be relieved to resume normal operation. After an
> emergency down operation one should never attempt to retract the gear in
> flight.
> The down circuit must be purged on the ground. I used to do it (after
emerg.
> down test at annual) by breaking connection in the wheel well. You can
> accomplish the same thing by closing the main valve and operating flaps
and
> brakes until all air is gone. Brakes are the most effective. Takes longer
> but works just as well.
> In my last post replying to Gus in referring to a system leak I failed to
> mention the most likely source. A faulty diverter valve is the second
> consideration, the first is the check valve on the firewall that allows
air
> from the emergency circuit to enter the normal system for flap and brake
> operation. The third, and last, is one of the emergency control valves. In
> the first two the air comes from the normal system and there will be no
loss
> of emergency pressure on the guage.
> Cheers,
> Walt
> ----- Original Message -----
> From: "Jim Selby" <jimscjs@mbay.net>
> To: <yak-list@matronics.com>
> Subject: RE: Yak-List: Re: Gear fails to retract
>
>
> > --> Yak-List message posted by: "Jim Selby" <jimscjs@mbay.net>
> >
> > You could have a sticking valve, but I have found you have to be sure
that
> > you bleed off all the air completely from both systems to zero, I break
> the
> > lines loose at the firewall right side upper line that goes to the Check
> > valve, this will do the emergency side and one will do the main side,
then
> > refill the system and try it again, if it still does not work then you
may
> > have a leaking valve someplace.
> > Jim
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> > [mailto:owner-yak-list-server@matronics.com]On Behalf Of Gus Fraser
> > To: yak-list@matronics.com
> > Subject: RE: Yak-List: Re: Gear fails to retract
> >
> >
> > --> Yak-List message posted by: "Gus Fraser" <fraseg@comcast.net>
> >
> > Ah, now I get it, the CJ does not have the relief valve between the
normal
> > and emergency side. This is why you are getting this problem. What is
> > happening is that air is leaking from the emergency side to the normal.
> You
> > obviously you will want to fix the valve that's broken but you may want
to
> > examine upgrading the CJ airsystem by adding the Yak 52 relief valve
into
> > the circuit.
> >
> >
> > Off to practice this years sequence now see ya latter.
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> > [mailto:owner-yak-list-server@matronics.com]On Behalf Of
> > cjpilot710@aol.com
> > To: yak-list@matronics.com
> > Subject: Re: Yak-List: Re: Gear fails to retract
> >
> >
> > --> Yak-List message posted by: cjpilot710@aol.com
> >
> > In a message dated 12/20/2003 1:29:31 AM Eastern Standard Time,
> > egon@hinet.net.au writes:
> >
> >
> > >
> > > Hi Jim,
> > > Thanks for the reply. I thought that might be the problem as well, but
> if
> > > one of the shuttle valves was sticking, would'nt that only affect its
> own
> > > particular gear leg? Is it likely that all three are sticking???
> > >
> > > Cheers Egon.
> > >
> > >
> >
> > No. Any one of the shuttle valves will effect the other gear. The
> hardest
> > one to get to is the on the firewall just above the front rudder bar.
> It
> > isn't hard to do them all, about a 2 hour job at leisurely pace.
> >
> > I lub them with a airtool. Make sure the brass valve inside has no
burrs
> > and
> > the spring is free and lub too.
> >
> >
> > ---
> > Incoming mail is certified Virus Free.
> >
> > ---
> >
> >
>
>
Message 8
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--> Yak-List message posted by: "Ernie" <ernest.martinez@oracle.com>
I can just see Pappy grinding his teeth right about now.
Ernie
----- Original Message -----
From: "Mark Jefferies YAK UK Ltd" <mark@yakuk.com>
Subject: Yak-List: flamed
> --> Yak-List message posted by: "Mark Jefferies YAK UK Ltd"
<mark@yakuk.com>
>
> Time: 06:24:52 AM PST US
> From: "Stuart Mackereth" <stuart@bramptonyork.com>
> Subject: Yak-List: CJ-List
>
> >--> Yak-List message posted by: "Stuart Mackereth"
<stuart@bramptonyork.com>
>
> >At the risk of getting flamed, is there any reason why there is not both
> >a CJ-List and a Yak-List ?
>
> Stu, the CJ is a copy of the YAK 18A so basically its a YAK, no need for a
second list. The CJ is an older design but like the YAK 52 I believe its
still in production. It could benefit from some of the "tweaks" to upgrade
the a/c that the 52 has had but its still a good a/c. See the front cover
and 6 page article in "Pilot" magazine this month.
>
> You will find the article at www.pilotweb.co.uk this is the main page or
the individual page is at
http://www.pilotweb.co.uk/content/issues/view_issue.aspx?issue636
>
> This is one of only 2 CJ in the UK. Its not very popular over here, by
contrast the newer and more able a/c the YAK 52 has approx 70 examples in
the UK.
>
> happy hols to all. mark j
>
> Ps :>)))))
>
>
> Best regards
> Mark Jefferies
>
> : Managing director YAK UK Ltd
> Little Gransden Airfield, Sandy, Beds SG19 3BP, England.
> ( +44 (0)1767 651156 Office + 651157 fax
> ( +44 (0)7785 538 317 Mobile
> : Conditions/ terms of business
>
>
Message 9
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| Subject: | Re: Gear fails to retract |
--> Yak-List message posted by: "jay reiter" <jmreiter@adelphia.net>
The gear strut goes over center when the gear is down and the stop bolt is
correctly adjusted they sit around all the time unpressrised.
Message 10
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| Subject: | Re: Gear fails to retract |
--> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net>
And the actuators lock in place similar to a pneumatic chuck fitting you
plug an air tool into.
Dennis
----- Original Message -----
From: "jay reiter" <jmreiter@adelphia.net>
Subject: Re: Yak-List: Re: Gear fails to retract
> --> Yak-List message posted by: "jay reiter" <jmreiter@adelphia.net>
>
> The gear strut goes over center when the gear is down and the stop bolt is
> correctly adjusted they sit around all the time unpressrised.
>
>
Message 11
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| Subject: | Re: Gear fails to retract |
--> Yak-List message posted by: "Jim Ivey" <jim@jimivey.com>
Fellows:
Go easy on Mark and his comments on CJ's.
Its a British cultural thing that reflects a deep seated insecurity in
dealing with people who don't respect or understand the restrictions of the
rigid class/authority system that they were taught to fear when young (ie
like "fearing" God). They know intellectually that their tendency to bow to
authority in all circumstances is crazy, so the only defense they have is to
insult anybody who suggests they're wrong.
I would bet $50 that Mark is an exceptionally accommodating and polite guy
in person, that's the flip side of the same issue. Outside of his own
culture he makes himself look like a bit of an idiot.
I'm sure there are many on the Yak List who would argue his points and even
from the reference of UK operations verses the relative freedom we have in
the Colonies. Don't allow him the pleasure of his troll remarks, leave them
lie.
And in reality I believe him to be quite tongue-in-cheek observing the
emoticons at the end of each post.
Jim Ivey
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of
> Mark Jefferies YAK UK Ltd
> Sent: Monday, December 22, 2003 1:36 AM
> To: YAK USA LIST
> Subject: Re: Yak-List: Re: Gear fails to retract
>
>
> --> Yak-List message posted by: "Mark Jefferies YAK UK Ltd"
> --> <mark@yakuk.com>
>
>
> Time: 10:55:33 AM PST US
>
> From: "Jim Selby" <jimscjs@mbay.net>
>
> Subject: Re: Gear fails to retract
>
>
> --> Yak-List message posted by: "Jim Selby" <jimscjs@mbay.net>
>
> You could have a sticking valve, but I have found you
> have to be sure that
> you bleed off all the air completely from both systems
> to zero, I break the
> lines loose at the firewall right side upper line that
> goes to the Check
> valve, this will do the emergency side and one will do
> the main side, then
> refill the system and try it again, if it still does
> not work then you may
> have a leaking valve someplace.
> Jim
>
> The example above is where the CJ could benefit from the
> automatic leak valve being fitted as per the YAK 52. For
> those that don't know its fitted under the front seat right
> side on the YAK 52 and instrument panel right side on the YAK 50.
>
> no need to get spanners and lock wire out once fitted and no
> more aborted flights due to legs not\retracting.
>
> Just one of those upgrades that YAK invented with the later
> a/c !!! :>))
>
>
> Best regards
> Mark Jefferies
>
> : Managing director YAK UK Ltd
> Little Gransden Airfield, Sandy, Beds SG19 3BP, England.
> ( +44 (0)1767 651156 Office + 651157 fax
> ( +44 (0)7785 538 317 Mobile
> : Conditions/ terms of business
>
>
> ============
> Matronics Forums.
> ============
> ============
> ============
>
>
>
>
>
Message 12
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| Subject: | Re: Gear fails to retract |
--> Yak-List message posted by: "Walt Lannon" <lannon@look.ca>
Hi Ernie;
No. The gear is locked down by the over-centre lock which is safetied by the
ball lock in each actuator.
When I do this procedure at annual the aircraft is on jacks in any case and
once air is removed (to ensure the re-positioning of the diverter valves)
the system is recharged and functioned.
I would not hesitate to do it on the wheels if necessary.
Walt
----- Original Message -----
From: "Ernie" <ernest.martinez@oracle.com>
Subject: Re: Yak-List: Re: Gear fails to retract
> --> Yak-List message posted by: "Ernie" <ernest.martinez@oracle.com>
>
> I have a question here. If the gear is locked down by pneumatic pressure,
> wouldnt bleeding the air then cause the gear to collapse?
>
> Ernie
> ----- Original Message -----
> From: "Walt Lannon" <lannon@look.ca>
> To: <yak-list@matronics.com>
> Subject: Re: Yak-List: Re: Gear fails to retract
>
>
> > --> Yak-List message posted by: "Walt Lannon" <lannon@look.ca>
> >
> > Right on Jim, the emergency down system by design retains pressure in
the
> > down circuit and must be relieved to resume normal operation. After an
> > emergency down operation one should never attempt to retract the gear in
> > flight.
> > The down circuit must be purged on the ground. I used to do it (after
> emerg.
> > down test at annual) by breaking connection in the wheel well. You can
> > accomplish the same thing by closing the main valve and operating flaps
> and
> > brakes until all air is gone. Brakes are the most effective. Takes
longer
> > but works just as well.
> > In my last post replying to Gus in referring to a system leak I failed
to
> > mention the most likely source. A faulty diverter valve is the second
> > consideration, the first is the check valve on the firewall that allows
> air
> > from the emergency circuit to enter the normal system for flap and brake
> > operation. The third, and last, is one of the emergency control valves.
In
> > the first two the air comes from the normal system and there will be no
> loss
> > of emergency pressure on the guage.
> > Cheers,
> > Walt
> > ----- Original Message -----
> > From: "Jim Selby" <jimscjs@mbay.net>
> > To: <yak-list@matronics.com>
> > Subject: RE: Yak-List: Re: Gear fails to retract
> >
> >
> > > --> Yak-List message posted by: "Jim Selby" <jimscjs@mbay.net>
> > >
> > > You could have a sticking valve, but I have found you have to be sure
> that
> > > you bleed off all the air completely from both systems to zero, I
break
> > the
> > > lines loose at the firewall right side upper line that goes to the
Check
> > > valve, this will do the emergency side and one will do the main side,
> then
> > > refill the system and try it again, if it still does not work then you
> may
> > > have a leaking valve someplace.
> > > Jim
> > >
> > > -----Original Message-----
> > > From: owner-yak-list-server@matronics.com
> > > [mailto:owner-yak-list-server@matronics.com]On Behalf Of Gus Fraser
> > > To: yak-list@matronics.com
> > > Subject: RE: Yak-List: Re: Gear fails to retract
> > >
> > >
> > > --> Yak-List message posted by: "Gus Fraser" <fraseg@comcast.net>
> > >
> > > Ah, now I get it, the CJ does not have the relief valve between the
> normal
> > > and emergency side. This is why you are getting this problem. What is
> > > happening is that air is leaking from the emergency side to the
normal.
> > You
> > > obviously you will want to fix the valve that's broken but you may
want
> to
> > > examine upgrading the CJ airsystem by adding the Yak 52 relief valve
> into
> > > the circuit.
> > >
> > >
> > > Off to practice this years sequence now see ya latter.
> > >
> > > -----Original Message-----
> > > From: owner-yak-list-server@matronics.com
> > > [mailto:owner-yak-list-server@matronics.com]On Behalf Of
> > > cjpilot710@aol.com
> > > To: yak-list@matronics.com
> > > Subject: Re: Yak-List: Re: Gear fails to retract
> > >
> > >
> > > --> Yak-List message posted by: cjpilot710@aol.com
> > >
> > > In a message dated 12/20/2003 1:29:31 AM Eastern Standard Time,
> > > egon@hinet.net.au writes:
> > >
> > >
> > > >
> > > > Hi Jim,
> > > > Thanks for the reply. I thought that might be the problem as well,
but
> > if
> > > > one of the shuttle valves was sticking, would'nt that only affect
its
> > own
> > > > particular gear leg? Is it likely that all three are sticking???
> > > >
> > > > Cheers Egon.
> > > >
> > > >
> > >
> > > No. Any one of the shuttle valves will effect the other gear. The
> > hardest
> > > one to get to is the on the firewall just above the front rudder
bar.
> > It
> > > isn't hard to do them all, about a 2 hour job at leisurely pace.
> > >
> > > I lub them with a airtool. Make sure the brass valve inside has no
> burrs
> > > and
> > > the spring is free and lub too.
> > >
> > >
> > > ---
> > > Incoming mail is certified Virus Free.
> > >
> > > ---
> > >
> > >
> >
> >
>
>
Message 13
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| Subject: | Re: Valve Problems |
--> Yak-List message posted by: "Walt Lannon" <lannon@look.ca>
Yes, that works fine and is the procedure I use for the emerg. gear swing to
avoid the shock. I use the gear handle to control the speed.
I think the process I listed is meant to keep it simple and uncomplicated in
a true emergency situation. Items 4 and 5 are superfluous in that situation
but are there for good housekeeping reasons.
----- Original Message -----
From: <cpayne@joimail.com>
Subject: Yak-List: Re: Valve Problems
> --> Yak-List message posted by: cpayne@joimail.com
>
> Walt,
>
> If air pressure remained in the system but the Emergency
> system were to be deployed, should not the pressure be bleed
> off between steps 2 and 3? This is the in-flight procedure I
> was taught.
>
> Craig Payne
>
> >Emerg Gear Extension:
> >1. Close main air valve
> >2. Gear lever neutral
> >3. Open Emerg. air
> >4. Gear lever down
> >5. Engage safety latch
>
>
Message 14
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| Subject: | Re: Gear fails to retract |
--> Yak-List message posted by: "BUTLER, FRANCIS" <FRANCIS_BUTLER@butler-machinery.com>
I would bet $50 that one of you CJ guys could rewrite Mr. Ivey's insult in three
sentences or less.
Merry Christmas, and may we all drink as much egg-nog as Jim.
F. Butler
Colonial Yak 50
-----Original Message-----
From: Jim Ivey [mailto:jim@jimivey.com]
Subject: RE: Yak-List: Re: Gear fails to retract
--> Yak-List message posted by: "Jim Ivey" <jim@jimivey.com>
Fellows:
Go easy on Mark and his comments on CJ's.
Its a British cultural thing that reflects a deep seated insecurity in
dealing with people who don't respect or understand the restrictions of the
rigid class/authority system that they were taught to fear when young (ie
like "fearing" God). They know intellectually that their tendency to bow to
authority in all circumstances is crazy, so the only defense they have is to
insult anybody who suggests they're wrong.
I would bet $50 that Mark is an exceptionally accommodating and polite guy
in person, that's the flip side of the same issue. Outside of his own
culture he makes himself look like a bit of an idiot.
I'm sure there are many on the Yak List who would argue his points and even
from the reference of UK operations verses the relative freedom we have in
the Colonies. Don't allow him the pleasure of his troll remarks, leave them
lie.
And in reality I believe him to be quite tongue-in-cheek observing the
emoticons at the end of each post.
Jim Ivey
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of
> Mark Jefferies YAK UK Ltd
> Sent: Monday, December 22, 2003 1:36 AM
> To: YAK USA LIST
> Subject: Re: Yak-List: Re: Gear fails to retract
>
>
> --> Yak-List message posted by: "Mark Jefferies YAK UK Ltd"
> --> <mark@yakuk.com>
>
>
> Time: 10:55:33 AM PST US
>
> From: "Jim Selby" <jimscjs@mbay.net>
>
> Subject: Re: Gear fails to retract
>
>
> --> Yak-List message posted by: "Jim Selby" <jimscjs@mbay.net>
>
> You could have a sticking valve, but I have found you
> have to be sure that
> you bleed off all the air completely from both systems
> to zero, I break the
> lines loose at the firewall right side upper line that
> goes to the Check
> valve, this will do the emergency side and one will do
> the main side, then
> refill the system and try it again, if it still does
> not work then you may
> have a leaking valve someplace.
> Jim
>
> The example above is where the CJ could benefit from the
> automatic leak valve being fitted as per the YAK 52. For
> those that don't know its fitted under the front seat right
> side on the YAK 52 and instrument panel right side on the YAK 50.
>
> no need to get spanners and lock wire out once fitted and no
> more aborted flights due to legs not\retracting.
>
> Just one of those upgrades that YAK invented with the later
> a/c !!! :>))
>
>
> Best regards
> Mark Jefferies
>
> : Managing director YAK UK Ltd
> Little Gransden Airfield, Sandy, Beds SG19 3BP, England.
> ( +44 (0)1767 651156 Office + 651157 fax
> ( +44 (0)7785 538 317 Mobile
> : Conditions/ terms of business
>
>
> ============
> Matronics Forums.
> ============
> ============
> ============
>
>
>
>
>
Message 15
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| Subject: | Re: Microair Radios |
--> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
Dennis Von Ruden wrote:
> Has anyone had a bad experience with
> the Microair transceiver and transponder? Thanks.
My experience with the Microair radios is that they have a front-end overload problem
that makes them almost useless when flying formation. The strong signal
from lead (or wing) overloads the receiver to where it just stops receiving.
As you get farther away, typically 200-300 yards/meters, it suddenly starts
to work again.
Disclaimer: my experience is about 2 years old and they may have made changes to
fix this problem.
--
Brian Lloyd 6501 Red Hook Plaza, Suite 201
brian@lloyd.com St. Thomas, VI 00802
+1.340.998.9447 - voice +1.360.838.9669 - fax
GMT-4
Message 16
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--> Yak-List message posted by: "Frank Haertlein" <yak52driver@earthlink.net>
Yaksters
About two weeks ago I sent in my Microair 760 radio for repair. The
display stopped working so I couldn't see what freq I was on. It still
transmitted and received.
I've been using it over a year without a problem till now. From what I'm
reading and my own experience maybe the Becker is the way to go.
Frank
N9110M
YAK-52
Message 17
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| Subject: | Becker Radios and vibration? |
--> Yak-List message posted by: "Coffey, John" <john.coffey@attws.com>
Drew,
I've got a Becker 4201 that's going strong after about 500 flight hrs
while mounted in my Yak-55m.
The vibration environment in my airplane is similar to other
well-maintained Yaks I've flown.
I've NEVER received a complaint about my transmission quality, either.
Cheers,
John Coffey
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com]On Behalf Of Drew Blahnick
Subject: Yak-List: Becker Radios and vibration?
--> Yak-List message posted by: "Drew Blahnick" <aapilot@adelphia.net>
Folks,
Anyone using the becker line of 2 1/4 inch comm radio (AR 4201) and
transponder? I'm being told they do not hold up well in high vibration
aircraft. This could be rumor, if anyone is using them please let me
know,
Drew
Drew Blahnick
RedStar Pilots Assoc.
310.872.0754
"Communism: Lousy Politics-Excellent Airplanes"
==
==
==
==
Message 18
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| Subject: | Re: Gear fails to retract |
--> Yak-List message posted by: "Gus Fraser" <fraseg@comcast.net>
If you spent just five minutes with Mark you would see that other remarkable
British trait, the ability to both understand and produce sarcasm. His mail
was a very good example of this with the smiley face added for those unable
to spot the obvious intent.
:)))))))))))))))))))))))))))))))))
Thanks
Gus
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com]On Behalf Of Jim Ivey
Subject: RE: Yak-List: Re: Gear fails to retract
--> Yak-List message posted by: "Jim Ivey" <jim@jimivey.com>
Fellows:
Go easy on Mark and his comments on CJ's.
Its a British cultural thing that reflects a deep seated insecurity in
dealing with people who don't respect or understand the restrictions of the
rigid class/authority system that they were taught to fear when young (ie
like "fearing" God). They know intellectually that their tendency to bow to
authority in all circumstances is crazy, so the only defense they have is to
insult anybody who suggests they're wrong.
I would bet $50 that Mark is an exceptionally accommodating and polite guy
in person, that's the flip side of the same issue. Outside of his own
culture he makes himself look like a bit of an idiot.
I'm sure there are many on the Yak List who would argue his points and even
from the reference of UK operations verses the relative freedom we have in
the Colonies. Don't allow him the pleasure of his troll remarks, leave them
lie.
And in reality I believe him to be quite tongue-in-cheek observing the
emoticons at the end of each post.
Jim Ivey
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of
> Mark Jefferies YAK UK Ltd
> Sent: Monday, December 22, 2003 1:36 AM
> To: YAK USA LIST
> Subject: Re: Yak-List: Re: Gear fails to retract
>
>
> --> Yak-List message posted by: "Mark Jefferies YAK UK Ltd"
> --> <mark@yakuk.com>
>
>
> Time: 10:55:33 AM PST US
>
> From: "Jim Selby" <jimscjs@mbay.net>
>
> Subject: Re: Gear fails to retract
>
>
> --> Yak-List message posted by: "Jim Selby" <jimscjs@mbay.net>
>
> You could have a sticking valve, but I have found you
> have to be sure that
> you bleed off all the air completely from both systems
> to zero, I break the
> lines loose at the firewall right side upper line that
> goes to the Check
> valve, this will do the emergency side and one will do
> the main side, then
> refill the system and try it again, if it still does
> not work then you may
> have a leaking valve someplace.
> Jim
>
> The example above is where the CJ could benefit from the
> automatic leak valve being fitted as per the YAK 52. For
> those that don't know its fitted under the front seat right
> side on the YAK 52 and instrument panel right side on the YAK 50.
>
> no need to get spanners and lock wire out once fitted and no
> more aborted flights due to legs not\retracting.
>
> Just one of those upgrades that YAK invented with the later
> a/c !!! :>))
>
>
> Best regards
> Mark Jefferies
>
> : Managing director YAK UK Ltd
> Little Gransden Airfield, Sandy, Beds SG19 3BP, England.
> ( +44 (0)1767 651156 Office + 651157 fax
> ( +44 (0)7785 538 317 Mobile
> : Conditions/ terms of business
>
>
> ============
> Matronics Forums.
> ============
> ============
> ============
>
>
Message 19
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| Subject: | other radios (was: Becker Radios and vibration?) |
--> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
I had an Apollo SL-60 GPS/comm and a Bendix-King KX-155 in "Betty". Both radios
worked flawlessly for four years and about 700 hours. As far as I know they
are still providing excellent service for David Laird who purchased "Betty".
BTW, in my experience the comm radio section from the Apollo/UPSAT radios, i.e.
SL-30, SL-40, SL-60, GX-60, GX-65, are the best comm radios I have *ever* used,
bar none. Their ability to monitor the standby frequency while still communicating
on the primary frequency is a feature of great value. I can use it to
monitor ATIS or the TAC frequency while still talking to ATC on main frequency.
This makes one radio perform the function of two comm radios. When viewed
that way the cost and size are substantially better than the Becker radios.
BTW, a single SL-30 performs like dual nav/coms as the nav function of the SL-30
provides the ability to track a radial or localizer on the primary frequency
while the nav receiver provides the radial information for the standby frequency.
There is, IMHO, no better nav/com radio made.
--
Brian Lloyd 6501 Red Hook Plaza, Suite 201
brian@lloyd.com St. Thomas, VI 00802
+1.340.998.9447 - voice +1.360.838.9669 - fax
GMT-4
Message 20
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| Subject: | Yak-52 v. CJ ACM |
--> Yak-List message posted by: Barry Hancock <radialpower@cox.net>
> The last one ended up with planned ACM somewhere in California.
>
> Gus
Well, Gus, there actually were not any direct takers on that challenge.
We ARE, however, having an ACM gathering in at Palm Springs in Feb., so
we'll have some fun to report on the issue after that. We will have 1
v. 1 similiar, 1v1 dissimilar, 2v1, ground attack, and low level
navigation training. It will be a ton of fun....learning from guys who
been shot at for real...and at the very least you'll come away with a
better understanding of your airplane (and yourself!)...and perhaps a
few holes to patch up. :)
If anyone is interested who has not contacted me, please do so off
list. We still have room for a couple more "studs" as we have a strong
corps of IP's this year.
Merry Christmas to all, and to all a good fight!
Cheers,
Barry
Barry Hancock
Director of Operations
Red Stars, Inc.
949.300.5510
www.allredstar.com
"Communism - Lousy Politics, Great Airplanes"
Message 21
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| Subject: | CJ6A: retracting the gear in-flight after using the emergency |
system
--> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
During transition training I require my students to go through a main pneumatic
system failure and then extend the gear using the emergency system. The problem
then is how to get the gear to come up again when they have completed the
exercise. I have found that the following steps work to reliably get the gear
to retract again in-flight without having to land and bleed the pressure out
of the emergency system plumbing.
1. Turn both the main and emergency air system valves off.
2. Place the flap lever partially into the up position. This will form a leak
in the flap-up circuit thus bleeding the pressure out of both the main and emergency
pneumatic systems. (The emergency pneumatic system also serves the flap
circuit.) Move the lever until you hear the loudest hissing indicating maximum
leakage.
3. Once the main system pressure is close to zero (remember, the compressor is
still going to keep a small amount of pressure in the main system in spite of
the leak), cycle the gear selector between up and down a couple of times and
then place the gear selector in the neutral (off) position. This bleeds off the
last of the pressure in the gear circuits.
4. Turn the main air system valve back on. (This is an important step so you
don't forget to turn the air on again.)
5. Let the pressure in the main system build back up again.
6. Once the main pneumatic system pressure reaches normal (at least 30 kg/cm2)
Place the gear lever in the down position and wait 5-10 seconds.
7. Place the gear lever in the up position. The gear should now retract normally
I have had 100% success with this technique with aircraft that have healthy pneumatic
systems where the shuttle valves work normally.
If this technique doesn't work, turn the main air system back on, leave the gear
lever in the down position, and land. You have something wrong with the pneumatic
system, probably a stuck shuttle valve. Inspect and repair the problem.
--
Brian Lloyd 6501 Red Hook Plaza, Suite 201
brian@lloyd.com St. Thomas, VI 00802
+1.340.998.9447 - voice +1.360.838.9669 - fax
GMT-4
Message 22
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| Subject: | Re: CJ6A: retracting the gear in-flight after using the emergency |
system
--> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net>
Excellent Brian. But for the YAK 52 folks on the list, please understand,
the systems are similar but definitely not identical. Case and point; the
emergency air system on the YAK 52 does not serve the flap circuit/actuator
that Brian speaks of.
Happy holidays,
Dennis
----- Original Message -----
From: "Brian Lloyd" <brian@lloyd.com>
Subject: Yak-List: CJ6A: retracting the gear in-flight after using the
emergency system
> --> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
>
> During transition training I require my students to go through a main
pneumatic system failure and then extend the gear using the emergency
system. The problem then is how to get the gear to come up again when they
have completed the exercise. I have found that the following steps work to
reliably get the gear to retract again in-flight without having to land and
bleed the pressure out of the emergency system plumbing.
>
> 1. Turn both the main and emergency air system valves off.
>
> 2. Place the flap lever partially into the up position. This will form a
leak in the flap-up circuit thus bleeding the pressure out of both the main
and emergency pneumatic systems. (The emergency pneumatic system also serves
the flap circuit.) Move the lever until you hear the loudest hissing
indicating maximum leakage.
>
> 3. Once the main system pressure is close to zero (remember, the
compressor is still going to keep a small amount of pressure in the main
system in spite of the leak), cycle the gear selector between up and down a
couple of times and then place the gear selector in the neutral (off)
position. This bleeds off the last of the pressure in the gear circuits.
>
> 4. Turn the main air system valve back on. (This is an important step so
you don't forget to turn the air on again.)
>
> 5. Let the pressure in the main system build back up again.
>
> 6. Once the main pneumatic system pressure reaches normal (at least 30
kg/cm2) Place the gear lever in the down position and wait 5-10 seconds.
>
> 7. Place the gear lever in the up position. The gear should now retract
normally
>
> I have had 100% success with this technique with aircraft that have
healthy pneumatic systems where the shuttle valves work normally.
>
> If this technique doesn't work, turn the main air system back on, leave
the gear lever in the down position, and land. You have something wrong
with the pneumatic system, probably a stuck shuttle valve. Inspect and
repair the problem.
>
>
> --
>
> Brian Lloyd 6501 Red Hook Plaza, Suite 201
> brian@lloyd.com St. Thomas, VI 00802
> +1.340.998.9447 - voice +1.360.838.9669 - fax
> GMT-4
>
>
Message 23
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| Subject: | Re: Valve questions |
--> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
JL wrote:
> --> Yak-List message posted by: JL <jland@popeandland.com>
>
> Here's another interesting valve question for the expert CJ plumbers out
> there.
>
> My normal system is going over pressure as is the emergency system.
This means that your pop-off valve (pressure regulator) is set too high. You need
to adjust the pop off valve to a lower pressure.
> Took out and cleaned most of the normal system lines to/from snot valve and
> the relief valve. Seemed to help initially on the normal system, but over
> time the pressure continued to creep up over red line. The emergency system
> went well over red line and kept going (more quickly than the normal
> system.)
>
> In the air I bled down the normal system with flaps to keep the pressures in
> line. However, after closing the main valve and turning on the emergency
> system (to also bleed down the over pressure with the flaps) the nose gear
> immediately blew down without selecting gear down. I then selected gear
> down, the mains went down and locked, and I left the gear down till landing
> since it was actuated by the emergency system.
You must have had pressure still in the up side because the nosegear and mains
should extend when the emergency air valve is opened. If there was still pressure
in the up side (main system still had pressure and the gear lever was in
the up position) none of the gear should have extended, not even the nose gear.
(Actually, they will all come about halfway down.)
> Are these related or unlucky independent problems ? Suggested solutions
> greatly appreciated.
Sounds like everything is pretty normal if you readjust your pop-off valve.
--
Brian Lloyd 6501 Red Hook Plaza, Suite 201
brian@lloyd.com St. Thomas, VI 00802
+1.340.998.9447 - voice +1.360.838.9669 - fax
GMT-4
Message 24
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--> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
Stuart Mackereth wrote:
> --> Yak-List message posted by: "Stuart Mackereth" <stuart@bramptonyork.com>
>
> At the risk of getting flamed, is there any reason why there is not both
> a CJ-List and a Yak-List ?
Because, in the beginning there just weren't that many people on the list and it
seemed like the best thing to do since there is so much systems overlap between
the two aircraft.
--
Brian Lloyd 6501 Red Hook Plaza, Suite 201
brian@lloyd.com St. Thomas, VI 00802
+1.340.998.9447 - voice +1.360.838.9669 - fax
GMT-4
Message 25
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--> Yak-List message posted by: <eyeballs@cox.net>
In the beginning, this was a CJ list. It was called the Yak list because so many
people called CJs Yaks. Yak pilots came to the list because of the name.
And the CJ people kindly allowed them to join. So for newcomers flying Yaks,
you are the add ons. The CJ pilots were here first.
Having said that, welcome to all pilots and owners of similar but not identical
aircraft. We can share the fun.
Eyeballs
Jim Shafer
CJ 360EB
> Stuart Mackereth wrote:
>
> > --> Yak-List message posted by: "Stuart Mackereth" <stuart@bramptonyork.com>
> >
> > At the risk of getting flamed, is there any reason why there is not both
> > a CJ-List and a Yak-List ?
>
>
Message 26
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| Subject: | Re: Gear fails to retract |
--> Yak-List message posted by: "Rick Basiliere" <discrab@earthlink.net>
Mark is a heck of a man and a hell of a pilot. He took the opportunity to
spoof all those who would bite, I truly believe. You bit.
Lets all have fun, fly safe, and enjoy family especially during the Holidays
Respectfully, Rick
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com]On Behalf Of Jim Ivey
Subject: RE: Yak-List: Re: Gear fails to retract
--> Yak-List message posted by: "Jim Ivey" <jim@jimivey.com>
Fellows:
Go easy on Mark and his comments on CJ's.
Its a British cultural thing that reflects a deep seated insecurity in
dealing with people who don't respect or understand the restrictions of the
rigid class/authority system that they were taught to fear when young (ie
like "fearing" God). They know intellectually that their tendency to bow to
authority in all circumstances is crazy, so the only defense they have is to
insult anybody who suggests they're wrong.
I would bet $50 that Mark is an exceptionally accommodating and polite guy
in person, that's the flip side of the same issue. Outside of his own
culture he makes himself look like a bit of an idiot.
I'm sure there are many on the Yak List who would argue his points and even
from the reference of UK operations verses the relative freedom we have in
the Colonies. Don't allow him the pleasure of his troll remarks, leave them
lie.
And in reality I believe him to be quite tongue-in-cheek observing the
emoticons at the end of each post.
Jim Ivey
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of
> Mark Jefferies YAK UK Ltd
> Sent: Monday, December 22, 2003 1:36 AM
> To: YAK USA LIST
> Subject: Re: Yak-List: Re: Gear fails to retract
>
>
> --> Yak-List message posted by: "Mark Jefferies YAK UK Ltd"
> --> <mark@yakuk.com>
>
>
> Time: 10:55:33 AM PST US
>
> From: "Jim Selby" <jimscjs@mbay.net>
>
> Subject: Re: Gear fails to retract
>
>
> --> Yak-List message posted by: "Jim Selby" <jimscjs@mbay.net>
>
> You could have a sticking valve, but I have found you
> have to be sure that
> you bleed off all the air completely from both systems
> to zero, I break the
> lines loose at the firewall right side upper line that
> goes to the Check
> valve, this will do the emergency side and one will do
> the main side, then
> refill the system and try it again, if it still does
> not work then you may
> have a leaking valve someplace.
> Jim
>
> The example above is where the CJ could benefit from the
> automatic leak valve being fitted as per the YAK 52. For
> those that don't know its fitted under the front seat right
> side on the YAK 52 and instrument panel right side on the YAK 50.
>
> no need to get spanners and lock wire out once fitted and no
> more aborted flights due to legs not\retracting.
>
> Just one of those upgrades that YAK invented with the later
> a/c !!! :>))
>
>
> Best regards
> Mark Jefferies
>
> : Managing director YAK UK Ltd
> Little Gransden Airfield, Sandy, Beds SG19 3BP, England.
> ( +44 (0)1767 651156 Office + 651157 fax
> ( +44 (0)7785 538 317 Mobile
> : Conditions/ terms of business
>
>
> ============
> Matronics Forums.
> ============
> ============
> ============
>
>
Message 27
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| Subject: | Re: CJ6A: retracting the gear in-flight after using the |
emergency system
--> Yak-List message posted by: Brian Lloyd <brian@lloyd.com>
A. Dennis Savarese wrote:
> --> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net>
>
> Excellent Brian. But for the YAK 52 folks on the list, please understand,
> the systems are similar but definitely not identical. Case and point; the
> emergency air system on the YAK 52 does not serve the flap circuit/actuator
> that Brian speaks of.
That is why I mentioned the procedure is CJ6A-specific. It pays to know your aircraft
systems.
--
Brian Lloyd 6501 Red Hook Plaza, Suite 201
brian@lloyd.com St. Thomas, VI 00802
+1.340.998.9447 - voice +1.360.838.9669 - fax
GMT-4
Message 28
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--> Yak-List message posted by: "Dennis Von Ruden" <dvonruden@generalequip.com>
I need some advice in determining an appropriate torque value for the
oil flow tube assembly located in the propeller dome of a J9-G1
propeller. This is the tube assembly that threads into the engine
crankshaft and then allows oil to flow into/out of the dome. I have not
been able to locate a torque value in all my service and maintenance
materials. Thanks.
Dennis Von Ruden
General Equipment Company
dvonruden@generalequip.com
Message 29
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| Subject: | Re: Torque Value |
--> Yak-List message posted by: joe h <joeh@shaw.ca>
Dennis
Torque for the filler neck to the prop shaft is 147 - 196 N , m.
Joe
----- Original Message -----
From: "Dennis Von Ruden" <dvonruden@generalequip.com>
Subject: Yak-List: Torque Value
> --> Yak-List message posted by: "Dennis Von Ruden"
<dvonruden@generalequip.com>
>
> I need some advice in determining an appropriate torque value for the
> oil flow tube assembly located in the propeller dome of a J9-G1
> propeller. This is the tube assembly that threads into the engine
> crankshaft and then allows oil to flow into/out of the dome. I have not
> been able to locate a torque value in all my service and maintenance
> materials. Thanks.
>
>
> Dennis Von Ruden
>
> General Equipment Company
>
> dvonruden@generalequip.com
>
>
Message 30
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--> Yak-List message posted by: "Drew Blahnick" <aapilot@adelphia.net>
Folks,
The RPA treasurer submitted the latest list of Flyredstar Web Project contributors,
Merry Christmas to everyone and a special thanks to these folks for their
tax deductible help in the flyredstar web project - Drew Blahnick. RPA President
Tom Noonan
Walter Lannon
Bill Blackwell
Scott Mcmillian
James Selby
Lannon Aviation
Dave King
Mark Jefferies YAK UK!
Stephen P. Holifield
John Finley
Timothy and Judith Stevens
Byron Fox
Mike Filucci
Jennifer Lehl
Ronald Kalemba
James Plumlee
Richard Desmond
Charles Lynch
Sam Sax
Fred Schlafly
Walter Fricke
Francis Jon Butler
Doug Sapp
Janace Harlom
Robert Schroeder
Drew Blahnick
RedStar Pilots Assoc.
310.872.0754
"Communism: Lousy Politics-Excellent Airplanes"
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