Today's Message Index:
----------------------
1. 11:30 AM - Re: Nanchang Company, M14P approval (Walter Lannon)
2. 11:30 AM - Re: Nanchang Company, M14P approval (Walter Lannon)
3. 10:01 PM - Yak elevator counterweight modification (Richard Goode)
4. 11:49 PM - Re: Yak elevator counterweight modification (Etienne Verhellen)
Message 1
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| Subject: | Re: Nanchang Company, M14P approval |
Jill, Pappy & Group;
I guess I too am a stickler for facts but in this case Jill=99s fact
is the real one, the PZL number (US 122000) is the propellor type. My apol
ogy Jill! It is not in compliance with Hamilton Standard practice but then
it is not an HS prop. Can I claim my screw up as an =9Calternate fa
ct=9D? Seems that now has official sanction in certain places.
Back to the original question: Is the Type 530 hub used only on the M14P
engines? The answer is still no. Some photos attached of a number of CJ
and Wilga prop. hubs showing the Type/Part numbers.
Photos 1 =93 3 are CJ6 hubs: #1 is a very early (in CJ production) R
ussian manufactured unit. #2 is early Chinese manufacture - note the Chine
se characters preceding the number. #3 is the final Chinese production.
Photos 4 =93 6 are PZL Wilga hubs (presumably all of Polish origin).
All of these hubs are physically interchangeable (though not legally for th
e certificated version of the Wilga).
Of course none of the above hubs can be installed on the M14P. The Type 5
30 probably originated in the 1950=99s with the production of the Ivc
henko engine but possibly even earlier for other prop. shaft type engines.
The M14P did not exist until approx. 20 years later. The flange mount arra
ngement was a major change that probably should have warranted a new type n
umber but given that the majority of internal components were the same they
may have concluded it was not necessary. In any case it is impossible to
interchange.
Due to large size of first 3 photos only those are attached here. Others t
o follow in separate email.
Walt
From: Jill Gernetzke
Sent: Saturday, January 21, 2017 6:58 AM
Subject: Re: Yak-List: Nanchang Company, M14P approval
Walt and Group,
Good morning. I am a stickler for facts and a thank you to Walt for prompt
ing me to back up my statements with facts. (I am a much worse grammar cop
and that is how I ended up writing for the Red Alert.)
So, I went digging through the library and the shop before my first cup of
coffee, this morning. Here is what I have to add to the discussion:
1. The PZL US1220000 is the correct name for the Wilga prop, not just the
blades. It is listed on the FAA Type Certificate data sheet in this manner
=2E Nowhere on the 2 Wilga hubs in the shop is there a stamping "V-530".
2. The Yaks/M-14P use the Vpered V-530 T/A Propeller.
3. The CJ uses a J9-GI Propeller type. The stamping on this CJ hub we are
overhauling is stamped with 2 Chinese characters, a dash and then 530. I
do not think the factory in Russia manufactured these hubs. Again, the CJ
hub is for a splined prop shaft. We do install V-530 blade collars in the
hub to be able to use our V-530J, W-530 or stock V-530 blades in the Chines
e hub - no problem.
My question is how people fill out their Airworthiness Application in the P
ropeller blocks for Manufacturer and Make/Model?
If you are really curious, I have posted documentation and pictures about t
his topic on our M-14P, Inc. Facebook page because I don't know how to do i
t here. After 20+ years in this business, there is still a lot I do not kn
ow! : )
Going to get my coffee, now. Have a great weekend!
Jill
M-14P, Inc.
Time: 06:49:07 PM PST US
From: "Walter Lannon" <wlannon@shaw.ca>
Subject: Re: Yak-List: Nanchang Company, M14P approval
Jill:
The number you are quoting for the PZL Wilga prop. hub is actually the
design number of the blade, not the hub.
If you could take the time and actually look at one you will see the hub
design number is V530 - T35. The M14P uses the same BASIC design number
but
with a very different dash number.
Walt
Jill Gernetzke
M-14P, Inc.
4905 Flightline Drive
Kingman, AZ 86401
928-681-4400
www.m-14p.com
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Message 2
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| Subject: | Re: Nanchang Company, M14P approval |
Post # 2 Remaining photos attached.
Last 2 photos are two overhauled CJ props and one in process. Anyone inter
ested in these please contact off list.
Walt
From: Jill Gernetzke
Sent: Saturday, January 21, 2017 6:58 AM
Subject: Re: Yak-List: Nanchang Company, M14P approval
Walt and Group,
Good morning. I am a stickler for facts and a thank you to Walt for prompt
ing me to back up my statements with facts. (I am a much worse grammar cop
and that is how I ended up writing for the Red Alert.)
So, I went digging through the library and the shop before my first cup of
coffee, this morning. Here is what I have to add to the discussion:
1. The PZL US1220000 is the correct name for the Wilga prop, not just the
blades. It is listed on the FAA Type Certificate data sheet in this manner
=2E Nowhere on the 2 Wilga hubs in the shop is there a stamping "V-530".
2. The Yaks/M-14P use the Vpered V-530 T/A Propeller.
3. The CJ uses a J9-GI Propeller type. The stamping on this CJ hub we are
overhauling is stamped with 2 Chinese characters, a dash and then 530. I
do not think the factory in Russia manufactured these hubs. Again, the CJ
hub is for a splined prop shaft. We do install V-530 blade collars in the
hub to be able to use our V-530J, W-530 or stock V-530 blades in the Chines
e hub - no problem.
My question is how people fill out their Airworthiness Application in the P
ropeller blocks for Manufacturer and Make/Model?
If you are really curious, I have posted documentation and pictures about t
his topic on our M-14P, Inc. Facebook page because I don't know how to do i
t here. After 20+ years in this business, there is still a lot I do not kn
ow! : )
Going to get my coffee, now. Have a great weekend!
Jill
M-14P, Inc.
Time: 06:49:07 PM PST US
From: "Walter Lannon" <wlannon@shaw.ca>
Subject: Re: Yak-List: Nanchang Company, M14P approval
Jill:
The number you are quoting for the PZL Wilga prop. hub is actually the
design number of the blade, not the hub.
If you could take the time and actually look at one you will see the hub
design number is V530 - T35. The M14P uses the same BASIC design number
but
with a very different dash number.
Walt
Jill Gernetzke
M-14P, Inc.
4905 Flightline Drive
Kingman, AZ 86401
928-681-4400
www.m-14p.com
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| Subject: | Yak elevator counterweight modification |
Several people have recently asked me about this. But in essence:
It is only applicable to the 52, and not to the 50.
However, it genuinely is a critical modification for the 52, and they have
been several fatal accidents in Russia to unmodified aircraft where the
elevator jams.
Modification kits are available from Lithuania.
Richard Goode
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +94 (0) 81 241 5137 (Sri Lanka)
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
<http://www.russianaeros.com> www.russianaeros.com
I'm currently in Sri Lanka but this Mail is working,and my local phone is
+94 779 132 160.
Message 4
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| Subject: | Re: Yak elevator counterweight modification |
Watch this video from my friend John :
http://ysair.weebly.com/yak-52-elevator-bellcrank-ad.html
And more importantly inspect your Yak-52 elevator bellcrank.
Cheers from snow covered Belgium but still flying Yakovlevs
--------
Yak-52 training anywhere - FI(A) Aerobatic Instructor - Specialised Yak-52.
http://www.afors.com/index.php?page=adview&adid=25551&imid=4
To Fly To Serve ...
https://c2.staticflickr.com/4/3677/18982461460_03d628ac44_b.jpg
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