Today's Message Index:
----------------------
1. 02:28 AM - PARTS CLEAROUT (rongreen)
2. 05:51 AM - Re: PARTS CLEAROUT (Michael Laub)
3. 06:54 AM - Re: PARTS CLEAROUT (fernando marinho pereira)
4. 07:10 AM - Re: Yak 50 Parts (Bitterlich, Mark G CIV NAVAIR, WD)
5. 07:17 AM - Re: Yak 50 Parts (Bitterlich, Mark G CIV NAVAIR, WD)
6. 07:31 AM - Re: Yak 50 Parts (Richard Goode)
7. 07:31 AM - Re: Yak 50 Parts (A. Dennis Savarese)
8. 08:23 AM - Re: Yak 50 Parts (Kregg Victory)
9. 09:04 AM - Re: Yak 50 Parts (Bitterlich, Mark G CIV NAVAIR, WD)
10. 09:30 AM - Re: Yak 50 Parts (Todd McCutchan)
11. 09:33 AM - Re: Yak 50 Parts (Kregg Victory)
12. 10:12 AM - Re: Yak 50 Parts (Bitterlich, Mark G CIV NAVAIR, WD)
13. 10:13 AM - Re: Yak 50 Parts (Bitterlich, Mark G CIV NAVAIR, WD)
14. 10:21 AM - Re: Yak 50 Parts (Todd McCutchan)
15. 11:13 AM - Re: Yak 50 Parts (Shaun Dawson)
16. 12:29 PM - Re: Yak 50 Parts (flier)
17. 01:19 PM - (Pappy)
18. 01:24 PM - Re: Yak 50 Parts (Bitterlich, Mark G CIV NAVAIR, WD)
19. 01:35 PM - Re: Yak 50 Parts (Roger Kemp)
20. 01:39 PM - Re: Yak 50 Parts (Roger Kemp)
21. 02:49 PM - Re: (Bitterlich, Mark G CIV NAVAIR, WD)
22. 03:09 PM - Re: CJ ailerons (Kelley Monroe)
23. 06:49 PM - Re: CJ ailerons (Walter Lannon)
24. 07:37 PM - Yak 50 "parking brake" (Todd McCutchan)
25. 08:11 PM - Yak 50 "parking brake" (Todd McCutchan)
Message 1
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Here at White Waltham Airfield, England our Russian Aircraft Parts Business are
have a rationalization of parts. We have a list of stock items for sale, mainly
YAK 18T, YAK 52, SU26, 29 & 31 aircraft parts. If you wish to receive a copy
of either the YAK or Sukhoi (or both) lists then please send an e-mail to:-
parts@wlacrussianeng.co.uk
Thanks
Ron Green
Russian Engineering Stores Manager.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=431830#431830
Message 2
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| Subject: | Re: PARTS CLEAROUT |
Hi Ron,
I am interested in yak 52 part list.
Best regards,
Michael
Von meinem iPhone gesendet
> Am 14.10.2014 um 11:27 schrieb "rongreen" <parts@wlacrussianeng.co.uk>:
>
>
> Here at White Waltham Airfield, England our Russian Aircraft Parts Business are
have a rationalization of parts. We have a list of stock items for sale, mainly
YAK 18T, YAK 52, SU26, 29 & 31 aircraft parts. If you wish to receive a copy
of either the YAK or Sukhoi (or both) lists then please send an e-mail to:-
parts@wlacrussianeng.co.uk
>
> Thanks
>
> Ron Green
> Russian Engineering Stores Manager.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=431830#431830
>
>
>
>
>
>
>
>
>
>
Message 3
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| Subject: | Re: PARTS CLEAROUT |
I am also interested in the Yak 52 part list.
Best regards
Fernando Marinho Pereira
Sent from my iPhone
No dia 14/10/2014, s 10:27, "rongreen" <parts@wlacrussianeng.co.uk> escreveu:
>
> Here at White Waltham Airfield, England our Russian Aircraft Parts Business are
have a rationalization of parts. We have a list of stock items for sale, mainly
YAK 18T, YAK 52, SU26, 29 & 31 aircraft parts. If you wish to receive a copy
of either the YAK or Sukhoi (or both) lists then please send an e-mail to:-
parts@wlacrussianeng.co.uk
>
> Thanks
>
> Ron Green
> Russian Engineering Stores Manager.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=431830#431830
>
>
>
>
>
>
>
>
>
>
Message 4
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They did not put them into Yak-50's, you will need one off a 52, and then add it.
My next question: Why in the world would you want it?
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Todd McCutchan
Sent: Saturday, October 11, 2014 9:59 PM
Subject: Yak-List: Yak 50 Parts
Looking for the following for Yak 50
"Parking brake" - arm that flips up below handbrake that holds it in position.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
Message 5
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A guy once went out and purchased a YAK-50 that used to belong to the President
of Lithuania. It was a very early model and included that parking brake lock
(1974).
He locked the brakes down using this device.
He came out some time later and went to start the airplane, but the air valve did
not open to start the engine, or so he thought.
So he set the throttle, got out, chocked the airplane, and started to hand prop
it.
It started, than then rolled over the chocks. It just missed him as it accelerated
across the ramp, tail came up, and then it smashed right into the side of
a hanger and ripped one wing right off the airplane.
You can guess...... but I am sure most (if not all) have already figured out what
happened. The brake lock depleted all the air, which is why it did not start.
The pilot, assuming the "parking brake" was set, did not realize that without
air pressure, there is no "parking brake". Result? One more Yak-50 struck
from the records.
With respect to all that might disagree, I think that this so called "parking
brake lock" would be the first thing I would remove from every Yak on the planet.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Saturday, October 11, 2014 11:34 PM
Subject: Re: Yak-List: Yak 50 Parts
Have to get that from the 52 community.
Doc
Sent from my iPad
On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote:
Looking for the following for Yak 50
"Parking brake" - arm that flips up below handbrake that holds it in position.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
Message 6
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I would humbly suggest that it is very useful, but only for starting. Otherwise,
how do you hold the stick back; press the starter button; have one hand on the
throttle; and be ready to switch on the magnetos. When doing a lot of 50 flying,
I used elastic bands to hold the brakes on while starting, but never as
a "parking-brake".
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
Sent: 14 October 2014 15:17
Subject: RE: Yak-List: Yak 50 Parts
--> <mark.bitterlich@navy.mil>
A guy once went out and purchased a YAK-50 that used to belong to the President
of Lithuania. It was a very early model and included that parking brake lock
(1974).
He locked the brakes down using this device.
He came out some time later and went to start the airplane, but the air valve did
not open to start the engine, or so he thought.
So he set the throttle, got out, chocked the airplane, and started to hand prop
it.
It started, than then rolled over the chocks. It just missed him as it accelerated
across the ramp, tail came up, and then it smashed right into the side of
a hanger and ripped one wing right off the airplane.
You can guess...... but I am sure most (if not all) have already figured out what
happened. The brake lock depleted all the air, which is why it did not start.
The pilot, assuming the "parking brake" was set, did not realize that without
air pressure, there is no "parking brake". Result? One more Yak-50 struck
from the records.
With respect to all that might disagree, I think that this so called "parking
brake lock" would be the first thing I would remove from every Yak on the planet.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Saturday, October 11, 2014 11:34 PM
Subject: Re: Yak-List: Yak 50 Parts
Have to get that from the 52 community.
Doc
Sent from my iPad
On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote:
Looking for the following for Yak 50
"Parking brake" - arm that flips up below handbrake that holds it in position.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
--
This message has been scanned for viruses and dangerous content by MailScanner,
and is believed to be clean.
Message 7
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| Subject: | Re: Yak 50 Parts |
Or, put in the post flight check list "Unlock Parking Brake Lever
Before Exiting Airplane". Then on the preflight checklist, something
like "DO NOT SET AND/OR LOCK PARKING BRAKE BEFORE TURNING MAIN AIR ON
AND VERIFYING ADEQUATE AIR PRESSURE"
The moral of the story is, one should not attempt to start, taxi or fly
an airplane they are unfamiliar with without proper instruction.
Dennis
A. Dennis Savarese
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 10/14/2014 9:17 AM, Bitterlich, Mark G CIV NAVAIR, WD wrote:
>
> A guy once went out and purchased a YAK-50 that used to belong to the President
of Lithuania. It was a very early model and included that parking brake lock
(1974).
>
> He locked the brakes down using this device.
>
> He came out some time later and went to start the airplane, but the air valve
did not open to start the engine, or so he thought.
>
> So he set the throttle, got out, chocked the airplane, and started to hand prop
it.
>
> It started, than then rolled over the chocks. It just missed him as it accelerated
across the ramp, tail came up, and then it smashed right into the side
of a hanger and ripped one wing right off the airplane.
>
> You can guess...... but I am sure most (if not all) have already figured out
what happened. The brake lock depleted all the air, which is why it did not
start. The pilot, assuming the "parking brake" was set, did not realize that
without air pressure, there is no "parking brake". Result? One more Yak-50
struck from the records.
>
> With respect to all that might disagree, I think that this so called "parking
brake lock" would be the first thing I would remove from every Yak on the planet.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: Saturday, October 11, 2014 11:34 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Yak 50 Parts
>
> Have to get that from the 52 community.
> Doc
>
> Sent from my iPad
>
> On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote:
>
>
> Looking for the following for Yak 50
>
> "Parking brake" - arm that flips up below handbrake that holds it in
position.
>
>
> Todd McCutchan
> T-34A & Yak-50
> Cell: (260) 402-1740
> E-mail: todd@fastaircraft.com
> www.fastaircraft.com
>
>
Message 8
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I believe turning on the main air valve is a check list item before starting the
engine in any configuration. Which means the parking brake system would be
active. Removing the parking braking safety lever is a dumb idea and any case.
Perhaps we need to educate the pilots on how to use the aircraft.
Just saying,
Kregg
Victory Aero
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.victoryhangar.com
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
Sent: Tuesday, October 14, 2014 7:17 AM
Subject: RE: Yak-List: Yak 50 Parts
--> <mark.bitterlich@navy.mil>
A guy once went out and purchased a YAK-50 that used to belong to the President
of Lithuania. It was a very early model and included that parking brake lock
(1974).
He locked the brakes down using this device.
He came out some time later and went to start the airplane, but the air valve did
not open to start the engine, or so he thought.
So he set the throttle, got out, chocked the airplane, and started to hand prop
it.
It started, than then rolled over the chocks. It just missed him as it accelerated
across the ramp, tail came up, and then it smashed right into the side of
a hanger and ripped one wing right off the airplane.
You can guess...... but I am sure most (if not all) have already figured out what
happened. The brake lock depleted all the air, which is why it did not start.
The pilot, assuming the "parking brake" was set, did not realize that without
air pressure, there is no "parking brake". Result? One more Yak-50 struck
from the records.
With respect to all that might disagree, I think that this so called "parking
brake lock" would be the first thing I would remove from every Yak on the planet.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Saturday, October 11, 2014 11:34 PM
Subject: Re: Yak-List: Yak 50 Parts
Have to get that from the 52 community.
Doc
Sent from my iPad
On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote:
Looking for the following for Yak 50
"Parking brake" - arm that flips up below handbrake that holds it in position.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
Message 9
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Just for discussion purposes only:
The main air was turned on. The parking brake was "active". That is why it
bled the whole bottle to zero Kregg.
As far as removing the parking brake mechanism, in your opinion it is a "bad idea",
but tell that to the Russians please. They usually had a good reason for
everything they do. They removed them on the YAK-50, or better said, did not
install them.... sometime after around 1978 or so. I've flown three Yak-50's
and own the wreck of a 4th which happens to be the one that I was telling
you about in the story. None of them have that parking brake system. Todd was
asking for the parts to put them BACK on a YAK-50, when the Russians specifically
took them OUT of that airplane.
It is my personal opinion that they probably left them IN the YAK-52, as that aircraft
was used as a PRIMARY TRAINER. The Yak-50 was typically not flown by
student pilots, but instead by their Aerobatic Team Members. That information
comes from Sergei Boriak, and Vladimir Yastremski.
You are welcome to your opinion, but I honestly do not believe it was a "dumb idea".
You said: "Perhaps we need to educate the pilots on how to use the aircraft."
That is absolutely true, and any YAK-52 pilot would need to be educated on how
to start a YAK-50 without a parking brake, as they do not have them installed.
Just saying ...... too.
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Kregg Victory
Sent: Tuesday, October 14, 2014 11:23 AM
Subject: RE: Yak-List: Yak 50 Parts
--> <kregg@balancemyprop.com>
I believe turning on the main air valve is a check list item before starting the
engine in any configuration. Which means the parking brake system would be
active. Removing the parking braking safety lever is a dumb idea and any case.
Perhaps we need to educate the pilots on how to use the aircraft.
Just saying,
Kregg
Victory Aero
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.victoryhangar.com
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
Sent: Tuesday, October 14, 2014 7:17 AM
Subject: RE: Yak-List: Yak 50 Parts
--> <mark.bitterlich@navy.mil>
A guy once went out and purchased a YAK-50 that used to belong to the President
of Lithuania. It was a very early model and included that parking brake lock
(1974).
He locked the brakes down using this device.
He came out some time later and went to start the airplane, but the air valve did
not open to start the engine, or so he thought.
So he set the throttle, got out, chocked the airplane, and started to hand prop
it.
It started, than then rolled over the chocks. It just missed him as it accelerated
across the ramp, tail came up, and then it smashed right into the side of
a hanger and ripped one wing right off the airplane.
You can guess...... but I am sure most (if not all) have already figured out what
happened. The brake lock depleted all the air, which is why it did not start.
The pilot, assuming the "parking brake" was set, did not realize that without
air pressure, there is no "parking brake". Result? One more Yak-50 struck
from the records.
With respect to all that might disagree, I think that this so called "parking
brake lock" would be the first thing I would remove from every Yak on the planet.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Saturday, October 11, 2014 11:34 PM
Subject: Re: Yak-List: Yak 50 Parts
Have to get that from the 52 community.
Doc
Sent from my iPad
On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote:
Looking for the following for Yak 50
"Parking brake" - arm that flips up below handbrake that holds it in position.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
Message 10
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| Subject: | Re: Yak 50 Parts |
Funny enough learning that the parking brake was not standard on the Yak 50 i
s a surprise to me!
Thought they were standard as our Termikas restored one had it and my '85 I a
m restoring doesn't.
I must say that I am very fond of having it for fueling (I stand on the tire
), run up and long waits for takeoff.
With air off there are no brakes regardless and most of the 50's I looked at
had some damage resulting from loss of braking due to no air.
Perhaps lack of hydraulic brakes or western training are more to blame than t
he "parking" brake.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
> On Oct 14, 2014, at 8:23 AM, Kregg Victory <kregg@balancemyprop.com> wrote
:
>
>
> I believe turning on the main air valve is a check list item before starti
ng the engine in any configuration. Which means the parking brake system wo
uld be active. Removing the parking braking safety lever is a dumb idea and
any case.
> Perhaps we need to educate the pilots on how to use the aircraft.
>
> Just saying,
>
> Kregg
>
> Victory Aero
> 2502 John Montgomery Dr.
> San Jose, CA 95148
> 408-836-5122
> www.victoryhangar.com
> www.balancemyprop.com
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@ma
tronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
> Sent: Tuesday, October 14, 2014 7:17 AM
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Yak 50 Parts
>
> --> <mark.bitterlich@navy.mil>
>
> A guy once went out and purchased a YAK-50 that used to belong to the Pres
ident of Lithuania. It was a very early model and included that parking br
ake lock (1974).
>
> He locked the brakes down using this device.
>
> He came out some time later and went to start the airplane, but the air va
lve did not open to start the engine, or so he thought.
>
> So he set the throttle, got out, chocked the airplane, and started to hand
prop it.
>
> It started, than then rolled over the chocks. It just missed him as it ac
celerated across the ramp, tail came up, and then it smashed right into the s
ide of a hanger and ripped one wing right off the airplane.
>
> You can guess...... but I am sure most (if not all) have already figured o
ut what happened. The brake lock depleted all the air, which is why it did
not start. The pilot, assuming the "parking brake" was set, did not realiz
e that without air pressure, there is no "parking brake". Result? One mor
e Yak-50 struck from the records.
>
> With respect to all that might disagree, I think that this so called "par
king brake lock" would be the first thing I would remove from every Yak on t
he planet.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@ma
tronics.com] On Behalf Of Roger Kemp
> Sent: Saturday, October 11, 2014 11:34 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Yak 50 Parts
>
> Have to get that from the 52 community.
> Doc
>
> Sent from my iPad
>
> On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote:
>
>
>
> Looking for the following for Yak 50
>
> "Parking brake" - arm that flips up below handbrake that holds it i
n position.
>
>
> Todd McCutchan
> T-34A & Yak-50
> Cell: (260) 402-1740
> E-mail: todd@fastaircraft.com
> www.fastaircraft.com
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
>
>
Message 11
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Mark, Very Good points mostly. Although, again checking the "air" in the system
in a check list item prior to starting for someone checked out in the aircraft.
We both agree pilots need more education on the aircraft.
I have a 1984 Yak 50 with came with the parking brake installed......................
Just a FYI
And on the good side "The Russians" also took out the pilots..................
:)
Have a good day!
Kregg
Victory Aero
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.victoryhangar.com
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
Sent: Tuesday, October 14, 2014 9:03 AM
Subject: RE: Yak-List: Yak 50 Parts
--> <mark.bitterlich@navy.mil>
Just for discussion purposes only:
The main air was turned on. The parking brake was "active". That is why it
bled the whole bottle to zero Kregg.
As far as removing the parking brake mechanism, in your opinion it is a "bad idea",
but tell that to the Russians please. They usually had a good reason for
everything they do. They removed them on the YAK-50, or better said, did not
install them.... sometime after around 1978 or so. I've flown three Yak-50's
and own the wreck of a 4th which happens to be the one that I was telling
you about in the story. None of them have that parking brake system. Todd was
asking for the parts to put them BACK on a YAK-50, when the Russians specifically
took them OUT of that airplane.
It is my personal opinion that they probably left them IN the YAK-52, as that aircraft
was used as a PRIMARY TRAINER. The Yak-50 was typically not flown by
student pilots, but instead by their Aerobatic Team Members. That information
comes from Sergei Boriak, and Vladimir Yastremski.
You are welcome to your opinion, but I honestly do not believe it was a "dumb idea".
You said: "Perhaps we need to educate the pilots on how to use the aircraft."
That is absolutely true, and any YAK-52 pilot would need to be educated on how
to start a YAK-50 without a parking brake, as they do not have them installed.
Just saying ...... too.
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Kregg Victory
Sent: Tuesday, October 14, 2014 11:23 AM
Subject: RE: Yak-List: Yak 50 Parts
--> <kregg@balancemyprop.com>
I believe turning on the main air valve is a check list item before starting the
engine in any configuration. Which means the parking brake system would be
active. Removing the parking braking safety lever is a dumb idea and any case.
Perhaps we need to educate the pilots on how to use the aircraft.
Just saying,
Kregg
Victory Aero
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.victoryhangar.com
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
Sent: Tuesday, October 14, 2014 7:17 AM
Subject: RE: Yak-List: Yak 50 Parts
--> <mark.bitterlich@navy.mil>
A guy once went out and purchased a YAK-50 that used to belong to the President
of Lithuania. It was a very early model and included that parking brake lock
(1974).
He locked the brakes down using this device.
He came out some time later and went to start the airplane, but the air valve did
not open to start the engine, or so he thought.
So he set the throttle, got out, chocked the airplane, and started to hand prop
it.
It started, than then rolled over the chocks. It just missed him as it accelerated
across the ramp, tail came up, and then it smashed right into the side of
a hanger and ripped one wing right off the airplane.
You can guess...... but I am sure most (if not all) have already figured out what
happened. The brake lock depleted all the air, which is why it did not start.
The pilot, assuming the "parking brake" was set, did not realize that without
air pressure, there is no "parking brake". Result? One more Yak-50 struck
from the records.
With respect to all that might disagree, I think that this so called "parking
brake lock" would be the first thing I would remove from every Yak on the planet.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Saturday, October 11, 2014 11:34 PM
Subject: Re: Yak-List: Yak 50 Parts
Have to get that from the 52 community.
Doc
Sent from my iPad
On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote:
Looking for the following for Yak 50
"Parking brake" - arm that flips up below handbrake that holds it in position.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
Message 12
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I too own a 1984 Yak-50. Without a parking brake.
I believe (but am not sure) that the incident pilot might have seen the air at
zero. It is hard for me to believe that he actually missed that, although that
is the story. The fact that he might not have realized that with one needle
showing zero, and the other needle showing 50 atmos, that he would have NO BRAKES,
is something I think COULD have happened. But that is just a guess.
At issue is how a new Yak owner goes about LEARNING ANYTHING about his or her
new aircraft. Especially if no one tells them about this list. And even then....
not every comment on the Yak List offers 100% perfectly reliable information.
Some is based on personal opinion only (Marvel Mystery Oil & Flight Suits
comes to mind), some on hear-say from other owners (plugging up the Accelerator
jet in the carb) etc., etc. Some really great debates (mine included)
have come from others that offer what they believe is good info. But in a lot
of cases, a new owner has NO resources. As an example, how many new Yak of CJ
pilots would know that it can be extremely dangerous to use the Emergency Gear
Air Valve with the aircraft on jacks? How many would know how to RESET the
system after applying Emergency Air to the gear? The list is endless! How
many new pilots would know that the starter air valve usually has a manual lever
that can be used if the electrical solenoid fails, or that "left and right"
on the MAG switch is backwards on the 50 versus the 52, or that early 50's had
a Veritherm in the oil cooler? How many people have copies of the Russian
list of mods that were done on the airframes by the Russians? How many know that
the emergency gear bottle is filled by the engine compressor on the 50 and
NOT on the 52? I could go on, as this is actually a good topic all by itself.....
meaning as far as being "educated" on flying the Yak-50, I have over 800
hours in 50's and have owned mine for 14 years, and am STILL learning.
Honestly not sure what you meant by: "Just a FYI And on the good side "The Russians"
also took out the pilots".
The general point I am making here is that I believe a lot of us might have flown
these aircraft for the first time without a thorough knowledge of the installed
systems. A really REALLY good example is the oil dilution switch and how
to use it. Once I realized how this system operated, I REMOVED it... post haste
and replaced it with electrical oil heating! However, some folks might
say they LOVE that system and use it all the time! Whatever floats your boat.
Opinions differ, and that is what this issue is about really, just different
opinions.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Kregg Victory
Sent: Tuesday, October 14, 2014 12:33 PM
Subject: RE: Yak-List: Yak 50 Parts
--> <kregg@balancemyprop.com>
Mark, Very Good points mostly. Although, again checking the "air" in the system
in a check list item prior to starting for someone checked out in the aircraft.
We both agree pilots need more education on the aircraft.
I have a 1984 Yak 50 with came with the parking brake installed......................
Just a FYI And on the good side "The Russians" also took out the pilots..................
:)
Have a good day!
Kregg
Victory Aero
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.victoryhangar.com
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
Sent: Tuesday, October 14, 2014 9:03 AM
Subject: RE: Yak-List: Yak 50 Parts
--> <mark.bitterlich@navy.mil>
Just for discussion purposes only:
The main air was turned on. The parking brake was "active". That is why it
bled the whole bottle to zero Kregg.
As far as removing the parking brake mechanism, in your opinion it is a "bad idea",
but tell that to the Russians please. They usually had a good reason for
everything they do. They removed them on the YAK-50, or better said, did not
install them.... sometime after around 1978 or so. I've flown three Yak-50's
and own the wreck of a 4th which happens to be the one that I was telling
you about in the story. None of them have that parking brake system. Todd was
asking for the parts to put them BACK on a YAK-50, when the Russians specifically
took them OUT of that airplane.
It is my personal opinion that they probably left them IN the YAK-52, as that aircraft
was used as a PRIMARY TRAINER. The Yak-50 was typically not flown by
student pilots, but instead by their Aerobatic Team Members. That information
comes from Sergei Boriak, and Vladimir Yastremski.
You are welcome to your opinion, but I honestly do not believe it was a "dumb idea".
You said: "Perhaps we need to educate the pilots on how to use the aircraft."
That is absolutely true, and any YAK-52 pilot would need to be educated on how
to start a YAK-50 without a parking brake, as they do not have them installed.
Just saying ...... too.
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Kregg Victory
Sent: Tuesday, October 14, 2014 11:23 AM
Subject: RE: Yak-List: Yak 50 Parts
--> <kregg@balancemyprop.com>
I believe turning on the main air valve is a check list item before starting the
engine in any configuration. Which means the parking brake system would be
active. Removing the parking braking safety lever is a dumb idea and any case.
Perhaps we need to educate the pilots on how to use the aircraft.
Just saying,
Kregg
Victory Aero
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.victoryhangar.com
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
Sent: Tuesday, October 14, 2014 7:17 AM
Subject: RE: Yak-List: Yak 50 Parts
--> <mark.bitterlich@navy.mil>
A guy once went out and purchased a YAK-50 that used to belong to the President
of Lithuania. It was a very early model and included that parking brake lock
(1974).
He locked the brakes down using this device.
He came out some time later and went to start the airplane, but the air valve did
not open to start the engine, or so he thought.
So he set the throttle, got out, chocked the airplane, and started to hand prop
it.
It started, than then rolled over the chocks. It just missed him as it accelerated
across the ramp, tail came up, and then it smashed right into the side of
a hanger and ripped one wing right off the airplane.
You can guess...... but I am sure most (if not all) have already figured out what
happened. The brake lock depleted all the air, which is why it did not start.
The pilot, assuming the "parking brake" was set, did not realize that without
air pressure, there is no "parking brake". Result? One more Yak-50 struck
from the records.
With respect to all that might disagree, I think that this so called "parking
brake lock" would be the first thing I would remove from every Yak on the planet.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Saturday, October 11, 2014 11:34 PM
Subject: Re: Yak-List: Yak 50 Parts
Have to get that from the 52 community.
Doc
Sent from my iPad
On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote:
Looking for the following for Yak 50
"Parking brake" - arm that flips up below handbrake that holds it in position.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
Message 13
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|
Termikas will not hesitate to install Yak-52 parts into 50's. And I am not saying
that is wrong, just thinking that was what might have happened in your case.
The air was NOT OFF in the incident aircraft. Apparently I somehow confused the
issue, sorry. The incident pilot set the parking brakes on the 50 with the
main air on. He then went about his business on the airport for some hours.
When he got back, the air was ZERO and the engine would not start. He then
hand propped and started the engine, with the parking brake set. He had only
owned the aircraft a short amount of time and was a "member of the Yak list".
:-) It is pretty much obvious that he did not equate the loss of main air
to "no brakes at all".
An accomplished Yak pilot would never have done this. But then how many new YAK
pilots ask questions about their own aircraft LONG AFTER they started flying
them? Other than this list, and other than being able to ask an expert how
certain systems actually work new owners are pretty much on their own.
20/20 hindsight is always .... 20/20.
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Todd McCutchan
Sent: Tuesday, October 14, 2014 12:28 PM
Subject: Re: Yak-List: Yak 50 Parts
Funny enough learning that the parking brake was not standard on the Yak 50 is
a surprise to me!
Thought they were standard as our Termikas restored one had it and my '85 I am
restoring doesn't.
I must say that I am very fond of having it for fueling (I stand on the tire),
run up and long waits for takeoff.
With air off there are no brakes regardless and most of the 50's I looked at had
some damage resulting from loss of braking due to no air.
Perhaps lack of hydraulic brakes or western training are more to blame than the
"parking" brake.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
On Oct 14, 2014, at 8:23 AM, Kregg Victory <kregg@balancemyprop.com> wrote:
I believe turning on the main air valve is a check list item before starting
the engine in any configuration. Which means the parking brake system would
be active. Removing the parking braking safety lever is a dumb idea and
any case.
Perhaps we need to educate the pilots on how to use the aircraft.
Just saying,
Kregg
Victory Aero
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.victoryhangar.com
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
Sent: Tuesday, October 14, 2014 7:17 AM
To: yak-list@matronics.com
Subject: RE: Yak-List: Yak 50 Parts
--> <mark.bitterlich@navy.mil>
A guy once went out and purchased a YAK-50 that used to belong to the President
of Lithuania. It was a very early model and included that parking brake
lock (1974).
He locked the brakes down using this device.
He came out some time later and went to start the airplane, but the air
valve did not open to start the engine, or so he thought.
So he set the throttle, got out, chocked the airplane, and started to hand
prop it.
It started, than then rolled over the chocks. It just missed him as it
accelerated across the ramp, tail came up, and then it smashed right into the
side of a hanger and ripped one wing right off the airplane.
You can guess...... but I am sure most (if not all) have already figured
out what happened. The brake lock depleted all the air, which is why it did
not start. The pilot, assuming the "parking brake" was set, did not realize
that without air pressure, there is no "parking brake". Result? One more Yak-50
struck from the records.
With respect to all that might disagree, I think that this so called "parking
brake lock" would be the first thing I would remove from every Yak on
the planet.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Saturday, October 11, 2014 11:34 PM
To: yak-list@matronics.com
Subject: Re: Yak-List: Yak 50 Parts
Have to get that from the 52 community.
Doc
Sent from my iPad
On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote:
Looking for the following for Yak 50
"Parking brake" - arm that flips up below handbrake that holds it
in position.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
==========================bsp; - The Yak-List Email Fors.com/Navigator?Yak-List">http://www.matronics.com/Navigator?Yak-List
http://www.matro================================================
<http://www.matronics.com/contribution>
Message 14
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| Subject: | Re: Yak 50 Parts |
Interesting Mark.
That would indicate a fairly substantial leak in the brake system correct? W
ould it not be able to be heard?
I never noticed ours bleeding down though I never left it for hours either.
I did see that checking for brake air leak (listening) is part of the before
start check on the 50 checklist I have.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
> On Oct 14, 2014, at 10:12 AM, Bitterlich, Mark G CIV NAVAIR, WD <mark.bitt
erlich@navy.mil> wrote:
>
bitterlich@navy.mil>
>
> Termikas will not hesitate to install Yak-52 parts into 50's. And I am n
ot saying that is wrong, just thinking that was what might have happened in y
our case.
>
> The air was NOT OFF in the incident aircraft. Apparently I somehow confu
sed the issue, sorry. The incident pilot set the parking brakes on the 50 w
ith the main air on. He then went about his business on the airport for so
me hours. When he got back, the air was ZERO and the engine would not star
t. He then hand propped and started the engine, with the parking brake set
. He had only owned the aircraft a short amount of time and was a "member o
f the Yak list". :-) It is pretty much obvious that he did not equate the
loss of main air to "no brakes at all".
>
> An accomplished Yak pilot would never have done this. But then how many n
ew YAK pilots ask questions about their own aircraft LONG AFTER they started
flying them? Other than this list, and other than being able to ask an exp
ert how certain systems actually work new owners are pretty much on their ow
n.
>
> 20/20 hindsight is always .... 20/20.
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@ma
tronics.com] On Behalf Of Todd McCutchan
> Sent: Tuesday, October 14, 2014 12:28 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Yak 50 Parts
>
> Funny enough learning that the parking brake was not standard on the Yak 5
0 is a surprise to me!
>
> Thought they were standard as our Termikas restored one had it and my '85 I
am restoring doesn't.
>
> I must say that I am very fond of having it for fueling (I stand on the ti
re), run up and long waits for takeoff.
>
> With air off there are no brakes regardless and most of the 50's I looked a
t had some damage resulting from loss of braking due to no air.
>
> Perhaps lack of hydraulic brakes or western training are more to blame tha
n the "parking" brake.
>
> Todd McCutchan
> T-34A & Yak-50
> Cell: (260) 402-1740
> E-mail: todd@fastaircraft.com
> www.fastaircraft.com
>
>
>
> On Oct 14, 2014, at 8:23 AM, Kregg Victory <kregg@balancemyprop.com> wrote
:
>
>
>
p.com>
>
> I believe turning on the main air valve is a check list item before
starting the engine in any configuration. Which means the parking brake sy
stem would be active. Removing the parking braking safety lever is a dumb i
dea and any case.
> Perhaps we need to educate the pilots on how to use the aircraft.
>
> Just saying,
>
> Kregg
>
> Victory Aero
> 2502 John Montgomery Dr.
> San Jose, CA 95148
> 408-836-5122
> www.victoryhangar.com
> www.balancemyprop.com
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-se
rver@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
> Sent: Tuesday, October 14, 2014 7:17 AM
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Yak 50 Parts
>
> --> <mark.bitterlich@navy.mil>
>
> A guy once went out and purchased a YAK-50 that used to belong to t
he President of Lithuania. It was a very early model and included that par
king brake lock (1974).
>
> He locked the brakes down using this device.
>
> He came out some time later and went to start the airplane, but the
air valve did not open to start the engine, or so he thought.
>
> So he set the throttle, got out, chocked the airplane, and started t
o hand prop it.
>
> It started, than then rolled over the chocks. It just missed him a
s it accelerated across the ramp, tail came up, and then it smashed right in
to the side of a hanger and ripped one wing right off the airplane.
>
> You can guess...... but I am sure most (if not all) have already fi
gured out what happened. The brake lock depleted all the air, which is why
it did not start. The pilot, assuming the "parking brake" was set, did not
realize that without air pressure, there is no "parking brake". Result? O
ne more Yak-50 struck from the records.
>
> With respect to all that might disagree, I think that this so call
ed "parking brake lock" would be the first thing I would remove from every Y
ak on the planet.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-se
rver@matronics.com] On Behalf Of Roger Kemp
> Sent: Saturday, October 11, 2014 11:34 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Yak 50 Parts
>
> Have to get that from the 52 community.
> Doc
>
> Sent from my iPad
>
> On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com>
wrote:
>
>
>
> Looking for the following for Yak 50
>
> "Parking brake" - arm that flips up below handbrake that hol
ds it in position.
>
>
> Todd McCutchan
> T-34A & Yak-50
> Cell: (260) 402-1740
> E-mail: todd@fastaircraft.com
> www.fastaircraft.com
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> =======================
===bsp; - The Yak-List Email Fors.com/Navigator?Yak-List">http:
//www.matronics.com/Navigator?Yak-List
>
> http://www.matro=================
==========================
=====
>
>
>
> <http://www.matronics.com/contribution>
>
>
>
>
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
>
>
Message 15
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| Subject: | Re: Yak 50 Parts |
Our will definitely bleed to zero if the parking break is left on because
of the wind blowing the rudder back and forth. I suspect that's less
likely in a hangar, though.
Shaun
On Tue, Oct 14, 2014 at 10:19 AM, Todd McCutchan <todd@fastaircraft.com>
wrote:
> Interesting Mark.
>
> That would indicate a fairly substantial leak in the brake system correct?
> Would it not be able to be heard?
>
> I never noticed ours bleeding down though I never left it for hours either.
>
> I did see that checking for brake air leak (listening) is part of the
> before start check on the 50 checklist I have.
>
> Todd McCutchan
> T-34A & Yak-50
> Cell: (260) 402-1740
> E-mail: todd@fastaircraft.com
> www.fastaircraft.com
>
>
> On Oct 14, 2014, at 10:12 AM, Bitterlich, Mark G CIV NAVAIR, WD <
> mark.bitterlich@navy.mil> wrote:
>
> mark.bitterlich@navy.mil>
>
> Termikas will not hesitate to install Yak-52 parts into 50's. And I am
> not saying that is wrong, just thinking that was what might have happened
> in your case.
>
> The air was NOT OFF in the incident aircraft. Apparently I somehow
> confused the issue, sorry. The incident pilot set the parking brakes on
> the 50 with the main air on. He then went about his business on the
> airport for some hours. When he got back, the air was ZERO and the engine
> would not start. He then hand propped and started the engine, with the
> parking brake set. He had only owned the aircraft a short amount of time
> and was a "member of the Yak list". :-) It is pretty much obvious that
> he did not equate the loss of main air to "no brakes at all".
>
> An accomplished Yak pilot would never have done this. But then how many
> new YAK pilots ask questions about their own aircraft LONG AFTER they
> started flying them? Other than this list, and other than being able to
> ask an expert how certain systems actually work new owners are pretty much
> on their own.
>
> 20/20 hindsight is always .... 20/20.
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [
> mailto:owner-yak-list-server@matronics.com
> <owner-yak-list-server@matronics.com>] On Behalf Of Todd McCutchan
> Sent: Tuesday, October 14, 2014 12:28 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Yak 50 Parts
>
> Funny enough learning that the parking brake was not standard on the Yak
> 50 is a surprise to me!
>
> Thought they were standard as our Termikas restored one had it and my '85
> I am restoring doesn't.
>
> I must say that I am very fond of having it for fueling (I stand on the
> tire), run up and long waits for takeoff.
>
> With air off there are no brakes regardless and most of the 50's I looked
> at had some damage resulting from loss of braking due to no air.
>
> Perhaps lack of hydraulic brakes or western training are more to blame
> than the "parking" brake.
>
> Todd McCutchan
> T-34A & Yak-50
> Cell: (260) 402-1740
> E-mail: todd@fastaircraft.com
> www.fastaircraft.com
>
>
> On Oct 14, 2014, at 8:23 AM, Kregg Victory <kregg@balancemyprop.com>
> wrote:
>
>
> kregg@balancemyprop.com>
>
>
> I believe turning on the main air valve is a check list item before
> starting the engine in any configuration. Which means the parking brake
> system would be active. Removing the parking braking safety lever is a
> dumb idea and any case.
> Perhaps we need to educate the pilots on how to use the aircraft.
>
> Just saying,
>
> Kregg
>
> Victory Aero
> 2502 John Montgomery Dr.
> San Jose, CA 95148
> 408-836-5122
> www.victoryhangar.com
> www.balancemyprop.com
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [
> mailto:owner-yak-list-server@matronics.com
> <owner-yak-list-server@matronics.com>] On Behalf Of Bitterlich, Mark G
> CIV NAVAIR, WD
> Sent: Tuesday, October 14, 2014 7:17 AM
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Yak 50 Parts
>
> --> <mark.bitterlich@navy.mil>
>
> A guy once went out and purchased a YAK-50 that used to belong to
> the President of Lithuania. It was a very early model and included that
> parking brake lock (1974).
>
> He locked the brakes down using this device.
>
> He came out some time later and went to start the airplane, but the
> air valve did not open to start the engine, or so he thought.
>
> So he set the throttle, got out, chocked the airplane, and started
> to hand prop it.
>
> It started, than then rolled over the chocks. It just missed him
> as it accelerated across the ramp, tail came up, and then it smashed right
> into the side of a hanger and ripped one wing right off the airplane.
>
> You can guess...... but I am sure most (if not all) have already
> figured out what happened. The brake lock depleted all the air, which is
> why it did not start. The pilot, assuming the "parking brake" was set, did
> not realize that without air pressure, there is no "parking brake".
> Result? One more Yak-50 struck from the records.
>
> With respect to all that might disagree, I think that this so
> called "parking brake lock" would be the first thing I would remove from
> every Yak on the planet.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [
> mailto:owner-yak-list-server@matronics.com
> <owner-yak-list-server@matronics.com>] On Behalf Of Roger Kemp
> Sent: Saturday, October 11, 2014 11:34 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Yak 50 Parts
>
> Have to get that from the 52 community.
> Doc
>
> Sent from my iPad
>
> On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com>
> wrote:
>
>
> Looking for the following for Yak 50
>
> "Parking brake" - arm that flips up below handbrake that
> holds it in position.
>
>
> Todd McCutchan
> T-34A & Yak-50
> Cell: (260) 402-1740
> E-mail: todd@fastaircraft.com
> www.fastaircraft.com
>
>
> ==========================bsp; - The Yak-List Email
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Message 16
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| Subject: | Re: Yak 50 Parts |
Perhaps the lock should be called something other than a parking brake...which
it is not. We use the lock on our '52s to facilitate starting and shutdown and
release it after shutdown when the air supply is shut off.
IMHO the only true parking brake for '52 is chocks.
Regards,
Ted
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=431859#431859
Message 17
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CgoKU2VudCB2aWEgdGhlIFNhbXN1bmcgR0FMQVhZIFPCrjQsIGFuIEFUJlQgNEcgTFRFIHNtYXJ0
cGhvbmU
Message 18
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> That would indicate a fairly substantial leak in the brake system correct? Would
it not be able to be heard?
Hard to answer that. Maybe yes, maybe no. Easy to find out. Go to your 50,
open the main air valve, and use something like a bungee cord and pull the brake
handle back. Come back after 6 hours or so and check the air. You might
be very surprised.
> I never noticed ours bleeding down though I never left it for hours either.
I no longer have air brakes. Mine are now hydraulic with Cleveland wheels/tires,
etc. I left my main air valve on overnight by accident and the next day it
was zero air in the main bottle. No idea where the leak was, is.... Remember
too that with the main valve open on the 50, (and 52) you are pressurizing
your gear actuators. Those things usually leak. Not a whole lot mind you, but
those chevron seals are always going to leak a little bit.
> I did see that checking for brake air leak (listening) is part of the before
start check on the 50 checklist I have.
Good idea! However, a slow leak would be hard to hear. A bad seal in the actuator
would normally be heard I agree. In the end, the main air valve was put
in for a very good reason.... they expected the system to leak air, and thus
gave a way to isolate it from most of the obvious small leak point.
Mark
On Oct 14, 2014, at 10:12 AM, Bitterlich, Mark G CIV NAVAIR, WD <mark.bitterlich@navy.mil>
wrote:
Termikas will not hesitate to install Yak-52 parts into 50's. And I am
not saying that is wrong, just thinking that was what might have happened in
your case.
The air was NOT OFF in the incident aircraft. Apparently I somehow confused
the issue, sorry. The incident pilot set the parking brakes on the 50
with the main air on. He then went about his business on the airport for some
hours. When he got back, the air was ZERO and the engine would not start.
He then hand propped and started the engine, with the parking brake set. He
had only owned the aircraft a short amount of time and was a "member of the
Yak list". :-) It is pretty much obvious that he did not equate the loss of
main air to "no brakes at all".
An accomplished Yak pilot would never have done this. But then how many
new YAK pilots ask questions about their own aircraft LONG AFTER they started
flying them? Other than this list, and other than being able to ask an expert
how certain systems actually work new owners are pretty much on their own.
20/20 hindsight is always .... 20/20.
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Todd McCutchan
Sent: Tuesday, October 14, 2014 12:28 PM
To: yak-list@matronics.com
Subject: Re: Yak-List: Yak 50 Parts
Funny enough learning that the parking brake was not standard on the Yak
50 is a surprise to me!
Thought they were standard as our Termikas restored one had it and my '85
I am restoring doesn't.
I must say that I am very fond of having it for fueling (I stand on the
tire), run up and long waits for takeoff.
With air off there are no brakes regardless and most of the 50's I looked
at had some damage resulting from loss of braking due to no air.
Perhaps lack of hydraulic brakes or western training are more to blame
than the "parking" brake.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
On Oct 14, 2014, at 8:23 AM, Kregg Victory <kregg@balancemyprop.com> wrote:
I believe turning on the main air valve is a check list item before
starting the engine in any configuration. Which means the parking brake system
would be active. Removing the parking braking safety lever is a dumb idea
and any case.
Perhaps we need to educate the pilots on how to use the aircraft.
Just saying,
Kregg
Victory Aero
2502 John Montgomery Dr.
San Jose, CA 95148
408-836-5122
www.victoryhangar.com
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD
Sent: Tuesday, October 14, 2014 7:17 AM
To: yak-list@matronics.com
Subject: RE: Yak-List: Yak 50 Parts
--> <mark.bitterlich@navy.mil>
A guy once went out and purchased a YAK-50 that used to belong to
the President of Lithuania. It was a very early model and included that parking
brake lock (1974).
He locked the brakes down using this device.
He came out some time later and went to start the airplane, but
the air valve did not open to start the engine, or so he thought.
So he set the throttle, got out, chocked the airplane, and started
to hand prop it.
It started, than then rolled over the chocks. It just missed him
as it accelerated across the ramp, tail came up, and then it smashed right into
the side of a hanger and ripped one wing right off the airplane.
You can guess...... but I am sure most (if not all) have already
figured out what happened. The brake lock depleted all the air, which is why
it did not start. The pilot, assuming the "parking brake" was set, did not
realize that without air pressure, there is no "parking brake". Result? One
more Yak-50 struck from the records.
With respect to all that might disagree, I think that this so called
"parking brake lock" would be the first thing I would remove from every
Yak on the planet.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Saturday, October 11, 2014 11:34 PM
To: yak-list@matronics.com
Subject: Re: Yak-List: Yak 50 Parts
Have to get that from the 52 community.
Doc
Sent from my iPad
On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com>
wrote:
Looking for the following for Yak 50
"Parking brake" - arm that flips up below handbrake that
holds it in position.
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
==========================bsp; - The Yak-List Email Fors.com/Navigator?Yak-List">http://www.matronics.com/Navigator?Yak-List
http://www.matro================================================
<http://www.matronics.com/contribution>
<==========================; - The Yak-List Email Forum -
?Yak-List">http://www.matronics.com/Navigator?Yak-List
_==========================; &nbp; --> http://forums.matroni===================================================http://www.matronics.com/contr============================================ <http://forums.matronics.com>
Message 19
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| Subject: | Re: Yak 50 Parts |
So he can wave and stroke at the same time?
Doc
Sent from my iPad
> On Oct 14, 2014, at 9:08 AM, Bitterlich, Mark G CIV NAVAIR, WD <mark.bitterlich@navy.mil>
wrote:
>
>
> They did not put them into Yak-50's, you will need one off a 52, and then add
it.
>
> My next question: Why in the world would you want it?
>
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Todd McCutchan
> Sent: Saturday, October 11, 2014 9:59 PM
> To: yak-list@matronics.com
> Subject: Yak-List: Yak 50 Parts
>
> Looking for the following for Yak 50
>
> "Parking brake" - arm that flips up below handbrake that holds it in position.
>
>
> Todd McCutchan
> T-34A & Yak-50
> Cell: (260) 402-1740
> E-mail: todd@fastaircraft.com
> www.fastaircraft.com
>
>
>
>
>
>
>
>
>
>
>
Message 20
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| Subject: | Re: Yak 50 Parts |
Dennis,
That clue bird lands shortly after you try to push the A/C into the hanger i
f the brake was left set.
Doc
Sent from my iPad
> On Oct 14, 2014, at 9:31 AM, A. Dennis Savarese <dsavarese0812@bellsouth.n
et> wrote:
>
> Or, put in the post flight check list "Unlock Parking Brake Lever Before E
xiting Airplane". Then on the preflight checklist, something like "DO NOT S
ET AND/OR LOCK PARKING BRAKE BEFORE TURNING MAIN AIR ON AND VERIFYING ADEQUA
TE AIR PRESSURE"
>
> The moral of the story is, one should not attempt to start, taxi or fly an
airplane they are unfamiliar with without proper instruction.
>
> Dennis
> A. Dennis Savarese
> 334-546-8182 (mobile)
> www.yak-52.com
> Skype - Yakguy1
> On 10/14/2014 9:17 AM, Bitterlich, Mark G CIV NAVAIR, WD wrote:
.bitterlich@navy.mil>
>>
>> A guy once went out and purchased a YAK-50 that used to belong to the Pre
sident of Lithuania. It was a very early model and included that parking b
rake lock (1974).
>>
>> He locked the brakes down using this device.
>>
>> He came out some time later and went to start the airplane, but the air v
alve did not open to start the engine, or so he thought.
>>
>> So he set the throttle, got out, chocked the airplane, and started to han
d prop it.
>>
>> It started, than then rolled over the chocks. It just missed him as it a
ccelerated across the ramp, tail came up, and then it smashed right into the
side of a hanger and ripped one wing right off the airplane.
>>
>> You can guess...... but I am sure most (if not all) have already figured o
ut what happened. The brake lock depleted all the air, which is why it did
not start. The pilot, assuming the "parking brake" was set, did not realiz
e that without air pressure, there is no "parking brake". Result? One mor
e Yak-50 struck from the records.
>>
>> With respect to all that might disagree, I think that this so called "pa
rking brake lock" would be the first thing I would remove from every Yak on t
he planet.
>>
>> Mark
>>
>>
>> -----Original Message-----
>> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@m
atronics.com] On Behalf Of Roger Kemp
>> Sent: Saturday, October 11, 2014 11:34 PM
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: Yak 50 Parts
>>
>> Have to get that from the 52 community.
>> Doc
>>
>> Sent from my iPad
>>
>> On Oct 11, 2014, at 8:59 PM, Todd McCutchan <todd@fastaircraft.com> wrote
:
>>
>>
>>
>> Looking for the following for Yak 50
>>
>> "Parking brake" - arm that flips up below handbrake that holds it
in position.
>>
>>
>> Todd McCutchan
>> T-34A & Yak-50
>> Cell: (260) 402-1740
>> E-mail: todd@fastaircraft.com
>> www.fastaircraft.com
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
Message 21
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Fancy stick Pappy.
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Pappy
Sent: Tuesday, October 14, 2014 4:17 PM
Subject:
Sent via the Samsung GALAXY S4, an AT&T 4G LTE smartphone
Message 22
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I had all the aileron push rods out from wing bell crank to wing bell
crank. I have tried to adjust the rods to get the ailerons in neutral
and the stick in neutral at the same time. Neutral on the stick is
about 1" off center to the left. If I put the stick in the center the
ailerons are in neutral but the stick will not stay there and it falls
off to the left about 1". So bottom line is I need to move the stick
neutral to the center. Any help would be appreciated. Thanks Kelley
----- Original Message -----
From: Walter Lannon
To: yak-list@matronics.com
Sent: Monday, October 13, 2014 9:57 PM
Subject: Re: Yak-List: CJ ailerons
Kelley;
Is there any history behind this? Was there work done on the ailerons
or control system? Very strange, that is a huge discrepancy.
Walt
From: Kelley Monroe
Sent: Monday, October 13, 2014 5:02 PM
To: yak-list@matronics.com
Subject: Yak-List: CJ ailerons
When my control stick is in the center, the right aileron is down 7/8"
and the left aileron is up 7/8". Does anyone know what adjustment I can
make so the ailerons are in sync with the control stick.
Thanks. Kelley
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/Navigator?Yak-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 23
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Hi Kelley;
It would appear you do not have a problem. Neutral is center.
The reason the stick falls to the left is due to the way the front and
rear brake cables are attached to torque tube. The weight of the cables
and housings is enough to cause the stick to fall slightly left.
It can be improved somewhat by careful positioning and attachment to the
torque tube but is not really a problem (unless the cables have come
loose and moved further from center).
In flight the neutral positioning of the ailerons (that is the aileron
position that will result in wings level with equal fuel, stick free and
zero yaw maintained with rudder at the normal cruise speed) is
controlled by adjustment of the aileron trim tabs.
It takes VERY small tab adjustments to accomplish that. Do the aileron
and rudder trim checks on nice smooth day. Set elev. trim for level
flight. For the aileron hold the heading with rudder, stick free and
note any roll. For the rudder hold the wings level with aileron and
note heading change. If necessary adjust both aileron tabs just a
little bit and note that to lift the wing you adjust the tab upwards.
To move the nose right adjust the tab to the left.
Chances are the tabs are already good.
Cheers;
Walt
From: Kelley Monroe
Sent: Tuesday, October 14, 2014 3:07 PM
Subject: Re: Yak-List: CJ ailerons
I had all the aileron push rods out from wing bell crank to wing bell
crank. I have tried to adjust the rods to get the ailerons in neutral
and the stick in neutral at the same time. Neutral on the stick is
about 1" off center to the left. If I put the stick in the center the
ailerons are in neutral but the stick will not stay there and it falls
off to the left about 1". So bottom line is I need to move the stick
neutral to the center. Any help would be appreciated. Thanks Kelley
----- Original Message -----
From: Walter Lannon
To: yak-list@matronics.com
Sent: Monday, October 13, 2014 9:57 PM
Subject: Re: Yak-List: CJ ailerons
Kelley;
Is there any history behind this? Was there work done on the ailerons
or control system? Very strange, that is a huge discrepancy.
Walt
From: Kelley Monroe
Sent: Monday, October 13, 2014 5:02 PM
To: yak-list@matronics.com
Subject: Yak-List: CJ ailerons
When my control stick is in the center, the right aileron is down 7/8"
and the left aileron is up 7/8". Does anyone know what adjustment I can
make so the ailerons are in sync with the control stick.
Thanks. Kelley
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhre
f="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/Navigator?Yak-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 24
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| Subject: | Yak 50 "parking brake" |
Message 25
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| Subject: | Yak 50 "parking brake" |
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