Today's Message Index:
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1. 08:01 AM - Re: First time buyer of a Yak 52 or Nanchang CJ-6 (skyjockey)
2. 08:16 AM - Re: First time buyer of a Yak 52 or Nanchang CJ-6 (HawkerPilot2015)
3. 11:15 AM - Re: Nose ear hard retract/fail to retract (av8ter)
4. 12:23 PM - Re: Nose ear hard retract/fail to retract (altman51)
5. 04:15 PM - Re: Re: First time buyer of a Yak 52 or Nanchang CJ-6 (Roger Kemp)
6. 08:44 PM - Re: Nose ear hard retract/fail to retract (Walter Lannon)
Message 1
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| Subject: | Re: First time buyer of a Yak 52 or Nanchang CJ-6 |
Well I don't consider Yak to be a cross country plane so you really need two planes
one to travel in and another for acrobatics and airshows. For 100K, one can
have both.
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warbird and lover of all things that go fast and upside down!
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http://forums.matronics.com/viewtopic.php?p=451377#451377
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| Subject: | Re: First time buyer of a Yak 52 or Nanchang CJ-6 |
Get whatever puts the smile on YOUR face..not someone elses.
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http://forums.matronics.com/viewtopic.php?p=451379#451379
Message 3
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| Subject: | Re: Nose ear hard retract/fail to retract |
For what it's worth. These restrictor plates are about the size and shape as a
contact lens and have a very small hole in the center. It is real easy to undo
a gear line and have it fall out and never notice it. Many times they stay tucked
inside the b-nut so you have to tap it to get it loose or take a look in
to see if it's there (and maybe gunked up.)
I know the parts book references it a shock absorber or something similar , but
I don't believe there is a picture. Doug sells blank plates and will provide
you with a nominal hole size to drill. The hole size can be changed to increase
or decrease speed of retraction/extention
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http://forums.matronics.com/viewtopic.php?p=451380#451380
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| Subject: | Re: Nose ear hard retract/fail to retract |
I have some restrictors from Doug...will look to see if II need a new one there...thanks
for the reply!
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Message 5
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| Subject: | Re: First time buyer of a Yak 52 or Nanchang CJ-6 |
Shack
Doc
Sent from my iPad
> On Dec 23, 2015, at 10:13 AM, HawkerPilot2015 <timsmiscaz@gmail.com> wrote:
>
>
> Get whatever puts the smile on YOUR face..not someone elses.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=451379#451379
>
>
>
>
>
>
>
>
>
>
Message 6
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| Subject: | Re: Nose ear hard retract/fail to retract |
Wayne;
Meant to respond earlier. Did you get it on jacks as Dennis suggested?
It appears you are experiencing two different problems, likely from the same
source. First: "nose gear would not retract". Second: "nose gear retracted
hard".
The first (gear wont retract) is usually due to internal failure of the
(firewall) check valve allowing main air pressure to leak into the emergency
side pressurizing the down side of the actuators. But since your problem
is nose gear only this likely does not apply.
The second (nose gear retracted hard) is totally opposite and indicates zero
back pressure in the actuator.
All I can think of that could possibly malfunction to both situations is the
nose gear emergency valves. Both should be tested and probably disassembled
for corrosion inspection. If you find something nasty here you should
consider the rest of the gear system. The air line restrictors are not the
problem.
Walt
-----Original Message-----
From: altman51
Sent: Sunday, December 13, 2015 1:08 PM
Subject: Yak-List: Nose ear hard retract/fail to retract
The last couple of flights in my CJ the nose gear has "hard retracted -
slaming into the gear well. Yesterday when I took off it would not retract.
Air pressure was 40ATM. Post was up lights indicated it was down. Both mains
retracted normally. Recycled gear down, then up the mains went down normally
and when retracted the nose retracted "hard". re-extended, all gear extended
and landed with no problems. Any experience/suggestions?
Wayne Altman
Savannah, GA
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http://forums.matronics.com/viewtopic.php?p=450927#450927
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