Today's Message Index:
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1. 03:15 AM - Re: Procedure for Emerg gear extension YAK18T (Mark Willard)
2. 04:37 AM - Re: Procedure for Emerg gear extension YAK18T (andrewfeneley)
3. 06:38 AM - Generator and electrical parts for Yak 52 standard (Lee Haven)
4. 12:21 PM - Leaky Flap Diverter Valves????? (Ernest Martinez)
5. 02:08 PM - Gear Extender for Yak 55 (yakflyr)
6. 09:11 PM - Re: Gear Extender for Yak 55 (Richard Goode)
Message 1
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| Subject: | Re: Procedure for Emerg gear extension YAK18T |
Andrew I have used Dennis procedure for a number of years, afterEgon told me
about it, and it reduces that slamming during an emergancy extension, very e
ffectively.
Mark
Sent from my iPad
> On Aug 20, 2014, at 9:52 PM, "A. Dennis Savarese" <dsavarese0812@bellsouth
.net> wrote:
>
> I don't have a Yak 18T factory procedure, but I am pretty sure if you use t
he procedure I have on my web site for a Yak 52 and CJ6, you will find it wi
ll eliminate the gear slamming down during the emergency gear extension. Th
e only difference is you don't have to deal with operation from the rear coc
kpit. So ignor anything related to the rear cockpit. Go to http://www.yak-
52.com/maintena.htm. Read through it first and then decide if you want to u
se it or not. It is different from the procedure you are using and has work
ed extremely well for probably 15+ years.
> Dennis
> From: andrewfeneley <feneleyandrew@hotmail.com>
> To: yak-list@matronics.com
> Sent: Tuesday, August 19, 2014 10:32 PM
> Subject: Yak-List: Procedure for Emerg gear extension YAK18T
>
>
>
> Every annual we test the emerg operation of the landing gear on our Yak18T
. We test it using the following sequence; Close off the main valve with th
e gear retracted, then drain the air from the system (using brake lever), th
en open the reserve tank, then move the UC lever to neutral and the gear wil
l retract. Mostly slamming down hard leg by leg and sometimes the final leg w
ill need the lever moved all the way to 'down' position to extend it. Questi
on; Does anyone have the actual factory procedure? Is there a method to 'buf
fer' the violent slamming down. I have thought about not draining the air fr
om the system when switching from Main to Reserve and testing it with a few c
ycles from the reserve bottle but the logic is that this is not an accurate s
imulation but with no air in the system the extension can be severe. I'd li
ke to be able to properly test the system to procedure while keeping the aer
oplane on the jacks - it's not quite that severe but I'm sure you all know w
!
> hat I mean.
>
> --------
> Yak 18T Sydney VH-IBT
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> Read this topic online here:
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> http://forums.matronics.com/viewtopic.php?p=428819#428819
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> http://www.matronics.com/Navigator?Yak-List; - MATRONICS WEB FORUMS -
> http:/; - List Contribution Web Site -
> http://www.====
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Message 2
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| Subject: | Re: Procedure for Emerg gear extension YAK18T |
Thanks All. Mark, I'll pass this onto Clive to compare notes we were all discussing
it during IBT annual. Cheers.
--------
Yak 18T Sydney
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=428960#428960
Message 3
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| Subject: | Generator and electrical parts for Yak 52 standard |
Good morning all!
My standard Yak 52 has a sick reverse current relay, blown 15 Amp fuse, and possibly
needs some additional components in the generator circuit.
Does anyone know of a source for these older parts? I'm told that most people
have switched to the BnC alternator. Please email me if:
-- you know of anyone looking to part with the older Yak 52 generator components
or...
-- if you know best place to buy the BnC package or...
-- If you can help me estimate how long it will take the "average guy, like me"
to retrofit the BnC alternator (if no parts are available for my old system).
Thank you!
Message 4
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| Subject: | Leaky Flap Diverter Valves????? |
Heres one for you Air Heads out there :)
I've been aware of a leak in my flap system that I have been chalking up to
leaky actuator seals. Basically if I leave the flap handle up in flight I
can't get more than 30 on the air gauge, but if I leave it in neutral, I
get up to 40. So I assumed the actuator was leaking back through the front
flap handle.
Today I decided to actuate the rear flap handle in the hangar and got a
VERY loud leak in the front cockpit. Didn't matter what position the front
handle was in, up, down or neutral. After a quick glance at the air
schematic I have concluded that it has to be that the diverter valves are
leaking air back through to the front handle.
Any thoughts before I start taking things apart. I realize I still may have
the leaky actuator.
Ernie
Message 5
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| Subject: | Gear Extender for Yak 55 |
Hi all,
I know I have asked this before and didn't find anything. I am trying again -
I just had the MT 260cm prop installed on my Yak 55 and we are concerned about
the ground clearance. I have seen extenders that attach to the bottom of the
strut to increase clearance.
My question - does anyone have these available for purchase, or does anyone have
a pattern I can use to have them made?
Thanks,
Anthony.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=429030#429030
Message 6
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| Subject: | Gear Extender for Yak 55 |
My strong advice to people putting the MT prop onto the 55 is to only use
the 250 cm diameter, simply because of ground clearance. The issue is
exacerbated by the fact that the 55 gear tends to sag over time.
However, if you already have the 260 prop, then you really should extend the
undercarriage by some means or only operate on smooth surfaces and always
keep the tail down!
Richard Goode
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +94 (0) 81 241 5137 (Sri Lanka)
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
Im currently in Sri Lanka but this Mail is working,and my local phone is
+94 779 132 160.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of yakflyr
Sent: Friday, August 22, 2014 2:37 AM
Subject: Yak-List: Gear Extender for Yak 55
Hi all,
I know I have asked this before and didn't find anything. I am trying again
- I just had the MT 260cm prop installed on my Yak 55 and we are concerned
about the ground clearance. I have seen extenders that attach to the bottom
of the strut to increase clearance.
My question - does anyone have these available for purchase, or does anyone
have a pattern I can use to have them made?
Thanks,
Anthony.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=429030#429030
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