Today's Message Index:
----------------------
1. 12:21 AM - Technical question....YAK52 propeller hub. (YAKY52)
2. 01:11 AM - Re: Recommended radio for Yak 52 (Jan Mevis)
3. 01:50 AM - Re: Recommended radio for Yak 52 (=?utf-8?Q?H=C3=A5vard_Dale?=)
4. 04:13 AM - Propeller cycle and pitch issue (Trond)
5. 04:26 AM - Re: Propeller cycle and pitch issue (Al Pickering)
6. 04:36 AM - Re: Recommended radio for Yak 52 (Jan Mevis)
7. 08:19 AM - Re: Yak 50 spares (Roger Kemp)
8. 09:17 AM - Re: Propeller cycle and pitch issue (Richard Goode)
9. 11:37 AM - Re: Propeller cycle and pitch issue (Trond)
10. 01:06 PM - Re: Technical question....YAK52 propeller hub. (cjpilot710@aol.com)
11. 03:42 PM - Re: Spins, particularly in a Yak-52 (barryhancock)
12. 05:59 PM - Parts (Frank)
Message 1
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| Subject: | Technical question....YAK52 propeller hub. |
Good morning Guys,
I need to know the steel alloy wich the propeller hub is made of,
I'm doing an ovrhaul on the Yak52 propeller, the company that is performing cadpalting
have to bake the component and decide the correct timining to eliminate
the component britle factor due to the nitrogen formation.
Any idea or suggestion regarding this subject??
Thank you
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=433804#433804
Message 2
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| Subject: | Re: Recommended radio for Yak 52 |
If you live in EASA country, then you should verify with a company that
has the EASA credentials for avionics maintenance and installation.
Look for such companies and ask if they have that radio on their list.
In EASA territory you can still install radio's and transponders on your
Annexe II aircraft, but you'll have them checked sooner or later.
Does Norway comply with EASA?
Regards,
Jan
On 16/11/14 00:14, "Hvard Dale" <havard.dale@yaknorway.com> wrote:
><havard.dale@yaknorway.com>
>
>Hi,
>
>Some time ago we discussed recomanded radios.
>
>About to park my 52 for some work and order new radio.
>
>Came over a MGL V6, does Somebody have some experience with this?
>
>http://www.mglavionics.com/html/radios.html
>
>Some say its a good radio and even consider the built in ICS to be better
>than a PM1200.
>
>Price is very nice so it would be great if anyone could give me thumbs up
>or down.
>
>BR
>Havard
>Yaknorway
>
>Sendt fra min iPhone 4S
>
>> Den 28. aug. 2014 kl. 21:50 skrev Roger Kemp <f16viperdoc@me.com>:
>>
>>
>> Copy all. Have added Filters just about everywhere. That got the
>>reception pushed out to about 10 miles in the clear but anything out
>>farther was a buzz.
>> Doc
>>
>> Sent from my iPad
>>
>>> On Aug 28, 2014, at 2:32 PM, "Bitterlich, Mark G CIV NAVAIR, WD"
>>><mark.bitterlich@navy.mil> wrote:
>>>
>>><mark.bitterlich@navy.mil>
>>>
>>> Roger that. I really should have been more definitive when I made
>>>that Becker statement.
>>>
>>> There are two ways to get rid of radio noise. Eliminate the noise at
>>>the source, or make an attempt to keep existing noise from getting into
>>>the radio.
>>>
>>> There is no question that the best way to keep ignition noise under
>>>control is to use a gross shield for every wire and sparkplug. That is
>>>what the original Russian design did. Every single wire was run inside
>>>of a metal tube, and basically there was a solid metal shield
>>>surrounding every single place ignition noise could leak out of. This
>>>is the best example of keeping noise under control at the source, but
>>>it came with a price. The Russian spark plug wire was very prone to
>>>deterioration and cross over coupling. An early attempt to address
>>>this was to replace the Russian spark plug wires with silicone wires
>>>inside of the original tube. This helped, but troubleshooting and
>>>repairing this design was problematic to put it mildly.
>>>
>>> Then Dennis came out with the idea of replacing all of that with
>>>Taylor high quality ignition wires, and automobile spark plugs. Anyone
>>>who has done this modification knows that the engine runs MUCH better
>>>than it ever had before with a good solid spark getting to the
>>>cylinders. But, there is no way open wiring is going to be as quiet as
>>>wires inside of solid metal tube. So, the noise floor was increased,
>>>and that is a price you have to pay.
>>>
>>> Another well-known source of noise is the P Leaks coming out of each
>>>Mag. These must be perfectly shielded, by-passed, filtered (etc.) or
>>>once again you raise the noise floor.
>>>
>>> Enter the P1000 digital tach from Horizon Instruments. This is a
>>>really cool tach and works exceptionally well. However, the design
>>>requires the installer to tap into P Leads from BOTH of the mags, and
>>>run that new wiring up to the Tach. It is VERY easy when doing this to
>>>create a situation where even more P lead noise "leaks out".
>>>
>>> The Becker radio is a good radio but there is no question that it is
>>>more susceptible to noise than just about any other model radio I have
>>>ever had experience with. Originally designed for gliders where weight
>>>was the most important issue, and shielding against engine noise was
>>>not, this makes perfect sense.
>>>
>>> Some folks have had very good luck with Becker radios in YAK and CJ
>>>aircraft. However, if you start adding new things to the airplane that
>>>increase the noise floor, it will start "hearing" that noise before
>>>most other models would. If you work hard enough, you can sometimes
>>>keep the noise under control enough to keep using them. And sometimes
>>>you can't.
>>>
>>> Mark
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: owner-yak-list-server@matronics.com
>>>[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
>>> Sent: Thursday, August 28, 2014 1:13 PM
>>> To: yak-list@matronics.com
>>> Subject: Re: Yak-List: Recomanded radio for Yak 52
>>>
>>>
>>> Copy Mark. Got some glider types trying to populate our airport! Will
>>>make them a deal. Sadly I have two!
>>> Doc
>>>
>>> Sent from my iPad
>>>
>>>> On Aug 28, 2014, at 10:13 AM, "Bitterlich, Mark G CIV NAVAIR, WD"
>>>><mark.bitterlich@navy.mil> wrote:
>>>>
>>>> --> <mark.bitterlich@navy.mil>
>>>>
>>>> Almost next to impossible to fix this problem a Becker Doc. Sell it
>>>>to a glider pilot. He'll love it.
>>>>
>>>> Mark
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: owner-yak-list-server@matronics.com
>>>> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
>>>> Sent: Wednesday, August 27, 2014 3:18 PM
>>>> To: yak-list@matronics.com
>>>> Subject: Re: Yak-List: Recomanded radio for Yak 52
>>>>
>>>>
>>>> No kidding! My Becker has gotten to the point that can hardly hear
>>>>what I receive. Have tried shielding all of the incoming wiring and
>>>>even thought about shielding the case.
>>>> Doc
>>>>
>>>> Sent from my iPad
>>>>
>>>>> On Aug 27, 2014, at 1:44 PM, Hvard Dale <havard.dale@yaknorway.com>
>>>>>wrote:
>>>>>
>>>>> --> <havard.dale@yaknorway.com>
>>>>>
>>>>> Hi Jan,
>>>>>
>>>>> Yes I to go for the 8,33 spacing now. Looking on the Garmin 225a or
>>>>>b. Problem is the dimension on depth.
>>>>>
>>>>> Are you satisfied with the Funkwerk? Problem now with the Becker is
>>>>>that it pick up to mutch noise from the Aircraft when reciving.
>>>>>
>>>>> BR
>>>>> Havard
>>>>>
>>>>>
>>>>>
>>>>> Sendt fra min iPhone 4S
>>>>>
>>>>>> Den 27. aug. 2014 kl. 20:13 skrev Jan Mevis
>>>>>><jan.mevis@informavia.be>:
>>>>>>
>>>>>>
>>>>>> I'd go for an 8.33 kHz separation.
>>>>>> Just a matter of time before it will be imposed in Europe.
>>>>>> I have a German Filser Funkwerk.
>>>>>>
>>>>>> BR,
>>>>>>
>>>>>> Jan
>>>>>>
>>>>>>> On 27/08/14 19:57, "Hvard Dale" <havard.dale@yaknorway.com> wrote:
>>>>>>>
>>>>>>> <havard.dale@yaknorway.com>
>>>>>>>
>>>>>>> Hi all,
>>>>>>>
>>>>>>> Would like to get some recomandations on which radio to instal in
>>>>>>>my 52.
>>>>>>> Now have an becker but it will be replaced.
>>>>>>>
>>>>>>> Have a new in box PM1200 I/C I would use with a new radio.
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> Kind regards
>>>>>>> Havard Dale
>>>>>>> Norway
>>>>>>>
>>>>>>> Sendt fra min iPad
>>>>>>>
>>>>>>>> Den 27. aug. 2014 kl. 09:02 skrev Yak-List Digest Server
>>>>>>>> <yak-list@matronics.com>:
>>>>>>>>
>>>>>>>> *
>>>>>>>>
>>>>>>>> =================================================
>>>>>>>> Online Versions of Today's List Digest Archive
>>>>>>>> =================================================
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>>>>>>>> Today's complete Yak-List Digest can also be found in either of
>>>>>>>> the two Web Links listed below. The .html file includes the
>>>>>>>> Digest formatted in HTML for viewing with a web browser and
>>>>>>>> features Hyperlinked Indexes and Message Navigation. The .txt
>>>>>>>> file includes the plain ASCII version of the Yak-List Digest and
>>>>>>>> can be viewed with a generic text editor such as Notepad or with
>>>>>>>>a web browser.
>>>>>>>>
>>>>>>>> HTML Version:
>>>>>>>>
>>>>>>>>
>>>>>>>> http://www.matronics.com/digest/digestview.php?Style=82701&View=ht
>>>>>>>> m
>>>>>>>> l&Chap
>>>>>>>> ter 14-08-26&Archive=Yak
>>>>>>>>
>>>>>>>> Text Version:
>>>>>>>>
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>>>>>>>> http://www.matronics.com/digest/digestview.php?Style=82701&View=tx
>>>>>>>> t
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>>>>>>>> er 14-08-26&Archive=Yak
>>>>>>>>
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>>>>>>>> Yak-List Digest Archive
>>>>>>>> ---
>>>>>>>> Total Messages Posted Tue 08/26/14: 1
>>>>>>>> ----------------------------------------------------------
>>>>>>>>
>>>>>>>>
>>>>>>>> Today's Message Index:
>>>>>>>> ----------------------
>>>>>>>>
>>>>>>>> 1. 08:21 AM - Re: Air system Flush (Todd McCutchan)
>>
>>
>>
>>
>>
>
>
Message 3
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| Subject: | Re: Recommended radio for Yak 52 |
Hi Jan,
Norway is following EASA on Certified Aircrafts, but for all experimental/Annex
II we follow national regulations. As a Certified Part-66 technican with national
approval by N-CAA i myself Can do the instalation/ modification.
I Can check with our local avionic shop if they know about the MGL. Most likely
not since he only deal Certified parts.
Up to know we have had no issue with the CAA in Norway. We operate some 52's here
and so far so good. Pretty mutch only the first check when Aircraft is imported
they are involved. After that Licenced technicans Can do all maintenenace/
annuals.
How is for you guys?
BR
Havard
Sendt fra min iPhone 4S
> Den 16. nov. 2014 kl. 10:10 skrev Jan Mevis <jan.mevis@informavia.be>:
>
>
> If you live in EASA country, then you should verify with a company that
> has the EASA credentials for avionics maintenance and installation.
> Look for such companies and ask if they have that radio on their list.
> In EASA territory you can still install radio's and transponders on your
> Annexe II aircraft, but you'll have them checked sooner or later.
> Does Norway comply with EASA?
>
> Regards,
>
> Jan
>
>
>> On 16/11/14 00:14, "Hvard Dale" <havard.dale@yaknorway.com> wrote:
>>
>> <havard.dale@yaknorway.com>
>>
>> Hi,
>>
>> Some time ago we discussed recomanded radios.
>>
>> About to park my 52 for some work and order new radio.
>>
>> Came over a MGL V6, does Somebody have some experience with this?
>>
>> http://www.mglavionics.com/html/radios.html
>>
>> Some say its a good radio and even consider the built in ICS to be better
>> than a PM1200.
>>
>> Price is very nice so it would be great if anyone could give me thumbs up
>> or down.
>>
>> BR
>> Havard
>> Yaknorway
>>
>> Sendt fra min iPhone 4S
Message 4
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| Subject: | Propeller cycle and pitch issue |
Hello
Im new in this forum.
I am Trond from Norway.
I have a Yak-52W 2000model
I have problems with my governor/propeller or something else.
To explain.My last flight, f.eks after a low pass when climbing quickly, engine
couldnt keep set rpm .. Rpm fell ..resulted in lower speed aswell... lower than
normal at this climb angel ...and i have to rapidly put nose down not to stall...
You could feel the lack off power. I flew to airfield and landed.
I decided to change governor. Thinking this was it according to hours run.
Termikas changed my governor.
At test runs on ground everything seemed ok. There wasnt weather for flight tests..anyway..Problem
thought to be solved.
Then next flight 3 weeks later..when doing run up for testflight. And trying to
cycle.
The propeller would not go coarse.
When i tried to cycle with rpm handle nothing happens. I tried everything for 30
minutes. Throttle upp down.. Rpm handle up and down. Different settings..Nothing.
No change in rpm.
Flight was offcourse aborted.
What could be wrong?
Governor is new.. Could this still be a faulty governor??
Or do i have a propeller issue?
Returnline blocked???
Anybody have drawing of oil system on governor and propeller ?I dont in my manuals.
Or have drawings on total oil system included in engine drawing with governor and
propeller.???
Are there return filters from propeller to oil tank??
I have a hoffman 3blade propp. If i take the propeller off my yak...and lay it
on ground in hangar, should i be able to turn pitch on blades with my hands. F.ex
tree guys one on each blade??
Best regards
Trond Sorgard
Message 5
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| Subject: | Re: Propeller cycle and pitch issue |
Have sent email with PDF mp14 engine manual. Governor schematic included.
Sent from Alspad.
> On 16 Nov 2014, at 23:16, "Trond" <trond.sorgard@gmail.com> wrote:
>
>
>
> Hello
> Im new in this forum.
> I am Trond from Norway.
> I have a Yak-52W 2000model
> I have problems with my governor/propeller or something else.
> To explain.My last flight, f.eks after a low pass when climbing quickly, engine
couldnt keep set rpm .. Rpm fell ..resulted in lower speed aswell... lower
than normal at this climb angel ...and i have to rapidly put nose down not to
stall... You could feel the lack off power. I flew to airfield and landed.
> I decided to change governor. Thinking this was it according to hours run.
> Termikas changed my governor.
> At test runs on ground everything seemed ok. There wasnt weather for flight tests..anyway..Problem
thought to be solved.
> Then next flight 3 weeks later..when doing run up for testflight. And trying
to cycle.
> The propeller would not go coarse.
> When i tried to cycle with rpm handle nothing happens. I tried everything for
30 minutes. Throttle upp down.. Rpm handle up and down. Different settings..Nothing.
> No change in rpm.
> Flight was offcourse aborted.
>
> What could be wrong?
> Governor is new.. Could this still be a faulty governor??
> Or do i have a propeller issue?
> Returnline blocked???
>
> Anybody have drawing of oil system on governor and propeller ?I dont in my manuals.
> Or have drawings on total oil system included in engine drawing with governor
and propeller.???
> Are there return filters from propeller to oil tank??
>
> I have a hoffman 3blade propp. If i take the propeller off my yak...and lay it
on ground in hangar, should i be able to turn pitch on blades with my hands.
F.ex tree guys one on each blade??
>
> Best regards
> Trond Sorgard
>
>
>
>
>
>
Message 6
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| Subject: | Re: Recommended radio for Yak 52 |
Hello Havard,
You might have a glance at TRIG avionics. In France, they're considered
being very good (by the inspectors I recently had).
In France (I'm not French, but based in France with my plane) they are
still quite cool and relaxed concerning Annexe II and even more for
accepted oldtimers (like the Yak 50, oldtimers have a special register in
France). An oldtime (= collectioner's item) is virtually like an
experimental in the USA. The owner is entirely responsible, and decides on
most issues. You just have to ask permission to change prop or engine, but
that's usually never a problem.
But with avionics, Easa imposes checks to see if the installed devices are
compliant.
So even my Yak 50 will be checked on transponder every two years, if not,
no radio-license, no flying
So we install radio's and transponders that are known by the inspectors,
to avoid lengthy discussions.
It's good to hear that you have a good working relationship with your
authorities. That is definitely not so easy in Belgium or in the
Netherlands.
BR,
Jan
On 16/11/14 10:49, "Hvard Dale" <havard.dale@yaknorway.com> wrote:
><havard.dale@yaknorway.com>
>
>Hi Jan,
>
>Norway is following EASA on Certified Aircrafts, but for all
>experimental/Annex II we follow national regulations. As a Certified
>Part-66 technican with national approval by N-CAA i myself Can do the
>instalation/ modification.
>
>I Can check with our local avionic shop if they know about the MGL. Most
>likely not since he only deal Certified parts.
>
>Up to know we have had no issue with the CAA in Norway. We operate some
>52's here and so far so good. Pretty mutch only the first check when
>Aircraft is imported they are involved. After that Licenced technicans
>Can do all maintenenace/ annuals.
>
>How is for you guys?
>
>BR
>Havard
>
>
>Sendt fra min iPhone 4S
>
>> Den 16. nov. 2014 kl. 10:10 skrev Jan Mevis <jan.mevis@informavia.be>:
>>
>>
>> If you live in EASA country, then you should verify with a company that
>> has the EASA credentials for avionics maintenance and installation.
>> Look for such companies and ask if they have that radio on their list.
>> In EASA territory you can still install radio's and transponders on your
>> Annexe II aircraft, but you'll have them checked sooner or later.
>> Does Norway comply with EASA?
>>
>> Regards,
>>
>> Jan
>>
>>
>>> On 16/11/14 00:14, "Hvard Dale" <havard.dale@yaknorway.com> wrote:
>>>
>>> <havard.dale@yaknorway.com>
>>>
>>> Hi,
>>>
>>> Some time ago we discussed recomanded radios.
>>>
>>> About to park my 52 for some work and order new radio.
>>>
>>> Came over a MGL V6, does Somebody have some experience with this?
>>>
>>> http://www.mglavionics.com/html/radios.html
>>>
>>> Some say its a good radio and even consider the built in ICS to be
>>>better
>>> than a PM1200.
>>>
>>> Price is very nice so it would be great if anyone could give me thumbs
>>>up
>>> or down.
>>>
>>> BR
>>> Havard
>>> Yaknorway
>>>
>>> Sendt fra min iPhone 4S
>
>
Message 7
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| Subject: | Re: Yak 50 spares |
My 74 uses the same main tank as the 52. I got a replacement tank from Gill Hayes
a couple of years ago.
For crush washers and metric O rings try McMaster Carr website.
Doc
Sent from my iPad
> On Nov 15, 2014, at 11:16 AM, yakxx21 <ken@aeroalgarve.com> wrote:
>
>
> Anybody know where I can buy.
>
> Non Return valce crush washers and O ring.. ( the Non return valve from the main
external point to the Air Tank .
>
> A new Air tank....seems impossible to obtain....maybe they make them in the States
??
>
> Thanks
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=433784#433784
>
>
>
>
>
>
>
>
>
>
Message 8
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| Subject: | Propeller cycle and pitch issue |
Have you cleaned the filter in the oil supply to the governor?
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 Trond
Sent: 16 November 2014 12:12
Subject: Yak-List: Propeller cycle and pitch issue
Hello
Im new in this forum.
I am Trond from Norway.
I have a Yak-52W 2000model
I have problems with my governor/propeller or something else.
To explain.My last flight, f.eks after a low pass when climbing quickly,
engine couldnt keep set rpm .. Rpm fell ..resulted in lower speed aswell...
lower than normal at this climb angel ...and i have to rapidly put nose down
not to stall... You could feel the lack off power. I flew to airfield and
landed.
I decided to change governor. Thinking this was it according to hours run.
Termikas changed my governor.
At test runs on ground everything seemed ok. There wasnt weather for flight
tests..anyway..Problem thought to be solved.
Then next flight 3 weeks later..when doing run up for testflight. And trying
to cycle.
The propeller would not go coarse.
When i tried to cycle with rpm handle nothing happens. I tried everything
for 30 minutes. Throttle upp down.. Rpm handle up and down. Different
settings..Nothing.
No change in rpm.
Flight was offcourse aborted.
What could be wrong?
Governor is new.. Could this still be a faulty governor??
Or do i have a propeller issue?
Returnline blocked???
Anybody have drawing of oil system on governor and propeller ?I dont in my
manuals.
Or have drawings on total oil system included in engine drawing with
governor and propeller.???
Are there return filters from propeller to oil tank??
I have a hoffman 3blade propp. If i take the propeller off my yak...and lay
it on ground in hangar, should i be able to turn pitch on blades with my
hands. F.ex tree guys one on each blade??
Best regards
Trond Sorgard
--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
Message 9
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| Subject: | Re: Propeller cycle and pitch issue |
No.
And i dont think Termikas did either.
I was not present when they did the governor change out.
Where is this filter located?
Regards Trond
Sendt fra min iPhone
> Den 16. nov. 2014 kl. 18.16 skrev Richard Goode <richard.goode@russianaeros.com>:
>
>
> Have you cleaned the filter in the oil supply to the governor?
>
> 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 Trond
> Sent: 16 November 2014 12:12
> To: yak-list@matronics.com
> Subject: Yak-List: Propeller cycle and pitch issue
>
>
>
> Hello
> Im new in this forum.
> I am Trond from Norway.
> I have a Yak-52W 2000model
> I have problems with my governor/propeller or something else.
> To explain.My last flight, f.eks after a low pass when climbing quickly,
> engine couldnt keep set rpm .. Rpm fell ..resulted in lower speed aswell...
> lower than normal at this climb angel ...and i have to rapidly put nose down
> not to stall... You could feel the lack off power. I flew to airfield and
> landed.
> I decided to change governor. Thinking this was it according to hours run.
> Termikas changed my governor.
> At test runs on ground everything seemed ok. There wasnt weather for flight
> tests..anyway..Problem thought to be solved.
> Then next flight 3 weeks later..when doing run up for testflight. And trying
> to cycle.
> The propeller would not go coarse.
> When i tried to cycle with rpm handle nothing happens. I tried everything
> for 30 minutes. Throttle upp down.. Rpm handle up and down. Different
> settings..Nothing.
> No change in rpm.
> Flight was offcourse aborted.
>
> What could be wrong?
> Governor is new.. Could this still be a faulty governor??
> Or do i have a propeller issue?
> Returnline blocked???
>
> Anybody have drawing of oil system on governor and propeller ?I dont in my
> manuals.
> Or have drawings on total oil system included in engine drawing with
> governor and propeller.???
> Are there return filters from propeller to oil tank??
>
> I have a hoffman 3blade propp. If i take the propeller off my yak...and lay
> it on ground in hangar, should i be able to turn pitch on blades with my
> hands. F.ex tree guys one on each blade??
>
> Best regards
> Trond Sorgard
>
>
>
>
>
>
>
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Message 10
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| Subject: | Re: Technical question....YAK52 propeller hub. |
My father was the chief foreman at EAL platting shop at MIA for 15+ years.
He cad plated my control sticks and linkage on the Pitts S1C I built. I
can't remember the exact numbers but 345F for several hours comes to mind.
Since this was enbrittlement for thin wall tubing and parts, not really
(to me any way) a big concern with the mass of prop hub. With EPA the way it
is today, this process will most likely cost you a good penny or two.
While cad plating will definitely keep corrosion away indefinitely, a cheaper
way maybe just a good cleansing/etching and a couple coats of a 2 part high
grade epoxy paint. The interior of the hub needs to keep its dimensional
tolerances and cad plating will throw those off. Those areas would need to
be waxed coated to prevent cad build-up. A more complicated process than
masking tape.
Lets us know how that works out.
Jim "Pappy" Goolsby
In a message dated 11/16/2014 3:21:33 A.M. Eastern Standard Time,
vulavula@libero.it writes:
--> Yak-List message posted by: "YAKY52" <vulavula@libero.it>
Good morning Guys,
I need to know the steel alloy wich the propeller hub is made of,
I'm doing an ovrhaul on the Yak52 propeller, the company that is
performing cadpalting have to bake the component and decide the correct timining
to
eliminate the component britle factor due to the nitrogen formation.
Any idea or suggestion regarding this subject??
Thank you
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=433804#433804
Message 11
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| Subject: | Re: Spins, particularly in a Yak-52 |
Here's a link to a short video of a transition or "cross over" spin exercise I
recently did with Bill Finigan, who has 10,000 hrs. of Pitts time. While this
is a drill, this is exactly the kind of craziness you can encounter with an unintentional
spin entry and improper recovery techniques. Imagine for a second
you were not expecting this and had no training...
https://www.facebook.com/video.php?v=10205379349393189&comment_id=10205381775213833&offset=0&total_comments=4
--------
Barry Hancock
Worldwide Warbirds, Inc.
www.worldwidewarbirds.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=433820#433820
Message 12
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Hi, I sold my Nanchang years ago and I am cleaning the hangar of stuff I don't
need. I have an engine that broke a connecting rod. The remaining 8 cylinders
should be good. Also have engine baffling, shipping crate and mount, manuals.
Frank Surfas
530-622-4462
Sent from my iPad
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