Today's Message Index:
----------------------
0. 12:36 AM - Coming Soon - The List of Contributors - Please Make A Contribution Today! (Matt Dralle)
1. 04:29 AM - Re: Metal Prop (LinJun)
2. 04:55 AM - Re: Metal Prop (A. Dennis Savarese)
3. 05:04 AM - Re: Metal Prop (Richard Hess)
4. 05:17 AM - Re: Metal Prop (A. Dennis Savarese)
5. 05:37 AM - Re: Metal Prop (Richard Goode)
6. 05:41 AM - Re: Metal Prop (George S. Coy)
7. 05:56 AM - Re: Metal Prop (A. Dennis Savarese)
8. 07:02 AM - Re: Metal Prop (A. Dennis Savarese)
9. 09:34 AM - Re: Metal Prop (Walter Lannon)
10. 10:02 AM - Re: Metal Prop (A. Dennis Savarese)
11. 12:31 PM - Re: Metal Prop (Egon)
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| Subject: | Coming Soon - The List of Contributors - Please Make A Contribution |
Today!
Each year at the end of the List Fund Raiser, I post a message acknowledging everyone
that so generously made a Contribution to support the Lists. Its my way
of publicly thanking everyone that took a minute to show their appreciation
for the Lists.
Please take a moment and assure that your name is on that List of Contributors
(LOC)! As a number of members have pointed out over the years, the List seems
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Credit card or Paypal on the Secure Web Site:
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or by dropping a personal check in the mail to:
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I would like to thank everyone that has so generously made a Contribution thus
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Matt Dralle
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Message 1
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There is a Chinese propeller named JL-2B can fit M-14P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=432952#432952
Message 2
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Although the Russian and Chinese prop hubs appear very similar, the threads on
the blade shanks of the Chinese blades are very coarse compared to the threads
on the Russian blades. Thus it would require replacement of the castellated
nut assemblies. If I remember correctly, the large, flat bearings are the same
size. So maybe the assemblies are the same size too. I wonder if it is possible
to remove the castellated nut assembly on the sides of the Chinese hub
and install them in a blank Russian hub? If that were possible, I guess one could
use a set of Chinese metal blades. But I don't know if the castellated nut
assemblies will interchange or not.
Dennis
________________________________
From: Roger Kemp <f16viperdoc@me.com>
Sent: Tuesday, November 4, 2014 7:19 PM
Subject: Re: Yak-List: Metal Prop
Copy Cory. I can understand your agist.
Doc
Sent from my iPad
On Nov 4, 2014, at 5:04 PM, Robin Hou <rmhou@yahoo.com> wrote:
Call M14P. They installed Chinese blades in Russian hub. But it was for ground
tested only, I think. It never flew; not sure why.
>
>
>On Tuesday, November 4, 2014 2:39 PM, Cory Robin <crobin@skyvantage.com> wrote:
>
>
>
>My M-14P is on a Wilga. I fly from backcountry/unimproved strips all the time..
Taking rocks through my all composite Whirlwind propeller is really proving
to be bad news. So I'm open to options appropriate for my application.
>
>
>Cory Robin
>Chief Executive Officer
>
>SkyVantage Corporation
>5526 West 13400 South, Suite 207
>Herriman, UT 84096
>United States of America
>US Ph. +1-801-649-2925 ext. 301
>Skype: skyvantage (calls only) ext. 301
>Email: crobin@skyvantage.com
>Website: http://www.skyvantage.com
>Join us on Facebook! www.facebook.com/skyvantage
>
>On Tue, Nov 4, 2014 at 1:46 PM, Roger Kemp <f16viperdoc@me.com> wrote:
>
>Why? That composite wood prop is protective in its self. That small supercharger
shaft is going take a beating with a prop strike with a metal prop. Not to
say it won't with the wood but not as much damage will be transmitted to the other
pinion gears as will be with a metal prop.
>>Doc
>>
>>Sent from my iPad
>>On Nov 4, 2014, at 11:15 AM, Richard Goode <richard.goode@russianaeros.com> wrote:
>>
>>
>>I believe there is also a three blade metal prop from Avia in the Czech Republic.
However it is quite heavy and non--aerobatic.
>>>
>>>Richard Goode Aerobatics
>>>Rhodds Farm
>>>Lyonshall
>>>Hereford
>>>HR5 3LW
>>>
>>>Tel: +44 (0) 1544 340120
>>>Fax: +44 (0) 1544 340129
>>>www.russianaeros.com
>>>
>>>From:owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of George S. Coy
>>>Sent: 04 November 2014 16:56
>>>To: yak-list@matronics.com
>>>Subject: RE: Yak-List: Metal Prop
>>>
>>>Yes, there is a 3 blade Hartzell. They are often installed on Murphy Moose.
I did the flight testing at Hartzell many years ago. I am still a dealer for
this prop.George Coy
>>>
>>>From:owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Cory Robin
>>>Sent: Tuesday, November 04, 2014 11:46 AM
>>>To: yak-list@matronics.com
>>>Subject: Yak-List: Metal Prop
>>>
>>>Anyone aware of any metal propeller options for the M14P?
>>>
>>>
>>>
>>>Cory Robin
>>>Chief Executive Officer
>>><~WRD000.jpg>
>>>SkyVantage Corporation
>>>5526 West 13400 South, Suite 207
>>>Herriman, UT 84096
>>>United States of America
>>>US Ph. +1-801-649-2925 ext. 301
>>>Skype: skyvantage (calls
only) ext. 301
>>>Email: crobin@skyvantage.com
>>>Website: http://www.skyvantage.com
>>>Join us on Facebook! www.facebook.com/skyvantage
>>>
>>>
>>>
>>>www.aeroelectric.com
>>>www.buildersbooks.com
>>>www.homebuilthelp.com
>>>www.mypilotstore.com
>>>www.mrrace.com
>>>http://www.matronics.com/contribution
>>>
>>>http://www.matronics.com/Navigator?Yak-List
>>>
>>>http://forums.matronics.com
>>>
>>>
>>>
>>>--
>>>This message has been scanned for viruses and
>>>dangerous content by MailScanner, and is
>>>believed to be clean.
>>>
>>>
>>>www.aeroelectric.comwww.buildersbooks.com
>>>www.homebuilthelp.com
>>>www.mypilotstore.com
>>>www.mrrace.com
>>>http://www.matronics.com/contribution
>>>http://www.matronics.com/Navigator?Yak-List
>>>http://forums.matronics.com
>>>
>>>
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>>_blank">www.aeroelectric.com
>>.com" target="_blank">www.buildersbooks.com ="_blank">www.homebuilthelp.com ="_blank">www.mypilotstore.com ank">www.mrrace.com _blank">http://www.matronics.com/contribution et="_blank">http://www.matronics.com/Navigator?Yak-List tp://forums.matronics.com
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>
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Message 3
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=0AI had a set of JL-2 blades on my 400 hp Husai engine.
They were making a similar set up for the M-14P. Ffrom
my experience the Chinese metal three-blade set up was VERY
smooth and powerful. Only penalty was the extra weight.=0A =0A
=0ARichard Hess=0APresident=0AInternational Jets, Inc.=0ACell 404-964-48
85=0A=0A =0A =0A-----Original Message-----=0AFrom: A. Dennis Savares
e <dsavarese0812@bellsouth.net>=0ATo: yak-list <yak-list@matronics.com>=0A
Sent: Wed, Nov 5, 2014 7:55 am=0ASubject: Re: Yak-List: Metal
Prop=0A=0A=0A=0AAlthough the Russian and Chinese prop hubs appear
very similar, the threads on the blade shanks of the Chinese
blades are very coarse compared to the threads on the Rus
sian blades. Thus it would require replacement of the caste
llated nut assemblies. If I remember correctly, the large,
flat bearings are the same size. So maybe the assemblies
are the same size too. I wonder if it is possible to
remove the castellated nut assembly on the sides of the C
hinese hub and install them in a blank Russian hub? If
that were possible, I guess one could use a set of Chinese
metal blades. But I don't know if the castellated nut
assemblies will interchange or not.=0ADennis=0A=0A=0A=0A =0A =0A
=0A =0A From: Roger Kemp <f16viperdoc@me.com>=0A To: "yak-li
st@matronics.com" <yak-list@matronics.com> =0A Sent: Tuesday, November
4, 2014 7:19 PM=0A Subject: Re: Yak-List: Metal Prop=0A
=0A =0A=0A=0A=0ACopy Cory. I can understand your agist. =0ADoc=0A
=0ASent from my iPad=0A=0AOn Nov 4, 2014, at 5:04 PM, Robin
Hou <rmhou@yahoo.com> wrote:=0A=0A=0A=0A=0ACall M14P. They installed
Chinese blades in Russian hub. But it was for ground tested
only, I think. It never flew; not sure why.=0A =0A=0A=0A=0A
=0A =0A =0A On Tuesday, November 4, 2014 2:39 PM, Cory
Robin <crobin@skyvantage.com> wrote:=0A =0A =0A=0A =0A=0AMy M-
14P is on a Wilga. I fly from backcountry/unimproved strips
all the time.. Taking rocks through my all composite Whi
rlwind propeller is really proving to be bad news. So
I'm open to options appropriate for my application.=0A=0A=0A=0A=0A
=0A=0ACory Robin=0AChief Executive Officer=0A=0ASkyVantage Corporation=0A
5526 West 13400 South, Suite 207=0AHerriman, UT 84096=0AUnited
States of America=0AUS Ph. +1-801-649-2925 ext. 301=0ASkype: skyva
ntage (calls only) ext. 301=0AEmail: crobin@skyvantage.com=0AWebsite:
http://www.skyvantage.com=0AJoin us on Facebook! www.facebook.com/
skyvantage=0A=0A=0A=0AOn Tue, Nov 4, 2014 at 1:46 PM, Roger Ke
mp <f16viperdoc@me.com> wrote:=0A=0A=0AWhy? That composite wood prop
is protective in its self. That small supercharger shaft is
going take a beating with a prop strike with a metal pr
op. Not to say it won't with the wood but not as much
damage will be transmitted to the other pinion gears as will
be with a metal prop.=0ADoc=0A=0ASent from my iPad=0A=0AOn No
v 4, 2014, at 11:15 AM, Richard Goode <richard.goode@russianaero
s.com> wrote:=0A=0A=0A=0A=0AI believe there is also a three blad
e metal prop from Avia in the Czech Republic. However it i
s quite heavy and non--aerobatic.=0A =0A=0ARichard Goode Aerobatic
s=0ARhodds Farm=0ALyonshall=0AHereford=0AHR5 3LW=0A =0ATel: +44 (0)
1544 340120=0AFax: +44 (0) 1544 340129=0Awww.russianaeros.com=0A=0A
=0A=0AFrom: owner-yak-list-server@matronics.com [mailto:owner-yak-list-se
rver@matronics.com] On Behalf Of George S. Coy=0ASent: 04 Novemb
er 2014 16:56=0ATo: yak-list@matronics.com=0ASubject: RE: Yak-List:
Metal Prop=0A=0A =0AYes, there is a 3 blade Hartzell. They a
re often installed on Murphy Moose. I did the flight test
ing at Hartzell many years ago. I am still a dealer for
this prop.=0AGeorge Coy=0A =0AFrom: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Cory Robin=0A
Sent: Tuesday, November 04, 2014 11:46 AM=0ATo: yak-list@matronics
.com=0ASubject: Yak-List: Metal Prop=0A =0A=0AAnyone aware of any
metal propeller options for the M14P?=0A=0A=0A=0A =0A=0ACory Robin
=0AChief Executive Officer=0A<~WRD000.jpg>=0ASkyVantage Corporation=0A5526
West 13400 South, Suite 207=0AHerriman, UT 84096=0AUnited St
ates of America=0AUS Ph. +1-801-649-2925 ext. 301=0ASkype: skyvant
age (calls only) ext. 301=0AEmail: crobin@skyvantage.com=0AWebsite:
http://www.skyvantage.com=0AJoin us on Facebook! www.facebook.com/
skyvantage=0A=0A=0A =0A =0A =0A =0Awww.aeroelectric.com=0Awww.buildersbo
oks.com=0Awww.homebuilthelp.com=0Awww.mypilotstore.com=0Awww.mrrace.com=0Ahttp:/
/www.matronics.com/contribution=0A =0Ahttp://www.matronics.com/Navigator?Yak-L
ist=0A =0Ahttp://forums.matronics.com=0A =0A =0A=0A-- =0AThis message
has been scanned for viruses and =0Adangerous content by MailS
canner, and is =0Abelieved to be clean. =0A =0A =0A=0A=0A=0A=0A
=0A=0A=0Awww.aeroelectric.com=0Awww.buildersbooks.com=0Awww.homebuilthelp.com=0A
www.mypilotstore.com=0Awww.mrrace.com=0A=0Ahttp://www.matronics.com/contribution
=0A=0A=0A=0A=0A=0A=0A=0Ahttp://www.matronics.com/Navigator?Yak-List=0A=0A=0Ahttp
://forums.matronics.com=0A=0A =0A=0A-- =0AThis message has been scan
ned for viruses and =0Adangerous content by MailScanner, and i
s =0Abelieved to be clean. =0A=0A=0A=0A=0A_blank">www.aeroelectric.com
=0A=0A.com" target="_blank">www.buildersbooks.com=0A="_blank">www.homebuil
thelp.com=0A="_blank">www.mypilotstore.com=0Aank">www.mrrace.com=0A_blank">htt
p://www.matronics.com/contribution=0Aet="_blank">http://www.matronics.com/Navi
gator?Yak-List=0Atp://forums.matronics.com=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A
=0A =0A =0A =0A =0A=0A=0A<68992_10152752200891192_3706082317252171
===========================
===========================
-Matt Dralle,
===========================
===========================
===========================
=============0A=0A=0A=0A
Message 4
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Also, I don't know the max design RPM limits on the Chinese blades which
turn 2400/2450 when installed on the HS6A engine.Turning them up tothe
M14 capable RPM of 2900could possibly stress the blades more than they
were designed to be run at. If Jill at M14P did some testing on this,
she may know the answer.
Dennis
A. Dennis Savarese
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 11/5/2014 6:51 AM, A. Dennis Savarese wrote:
> Although the Russian and Chinese prop hubs appear very similar, the
> threads on the blade shanks of the Chinese blades are very coarse
> compared to the threads on the Russian blades. Thus it would require
> replacement of the castellated nut assemblies. If I remember
> correctly, the large, flat bearings are the same size. So maybe the
> assemblies are the same size too. I wonder if it is possible to
> remove the castellated nut assembly on the sides of the Chinese hub
> and install them in a blank Russian hub? If that were possible, I
> guess one could use a set of Chinese metal blades. But I don't know
> if the castellated nut assemblies will interchange or not.
> Dennis
>
> ------------------------------------------------------------------------
> *From:* Roger Kemp <f16viperdoc@me.com>
> *To:* "yak-list@matronics.com" <yak-list@matronics.com>
> *Sent:* Tuesday, November 4, 2014 7:19 PM
> *Subject:* Re: Yak-List: Metal Prop
>
> Copy Cory. I can understand your agist.
> Doc
>
> Sent from my iPad
>
> On Nov 4, 2014, at 5:04 PM, Robin Hou <rmhou@yahoo.com
> <mailto:rmhou@yahoo.com>> wrote:
>
>> Call M14P. They installed Chinese blades in Russian hub. But it was
>> for ground tested only, I think. It never flew; not sure why.
>>
>>
>> On Tuesday, November 4, 2014 2:39 PM, Cory Robin
>> <crobin@skyvantage.com <mailto:crobin@skyvantage.com>> wrote:
>>
>>
>> My M-14P is on a Wilga. I fly from backcountry/unimproved strips all
>> the time.. Taking rocks through my all composite Whirlwind propeller
>> is really proving to be bad news. So I'm open to options
>> appropriate for my application.
>>
>>
>>
>> Cory Robin
>> Chief Executive Officer
>>
>> SkyVantage Corporation
>> 5526 West 13400 South, Suite 207
>> Herriman, UT 84096
>> United States of America
>> US Ph. +1-801-649-2925 ext. 301
>> Skype: skyvantage (calls only) ext. 301
>> Email: crobin@skyvantage.com <mailto:crobin@skyvantage.com>
>> Website: http://www.skyvantage.com <http://www.skyvantage.com/>
>> Join us on Facebook! www.facebook.com/skyvantage
>> <http://www.facebook.com/skyvantage>
>>
>> On Tue, Nov 4, 2014 at 1:46 PM, Roger Kemp <f16viperdoc@me.com
>> <mailto:f16viperdoc@me.com>> wrote:
>>
>> Why? That composite wood prop is protective in its self. That
>> small supercharger shaft is going take a beating with a prop
>> strike with a metal prop. Not to say it won't with the wood but
>> not as much damage will be transmitted to the other pinion gears
>> as will be with a metal prop.
>> Doc
>>
>> Sent from my iPad
>>
>> On Nov 4, 2014, at 11:15 AM, Richard Goode
>> <richard.goode@russianaeros.com
>> <mailto:richard.goode@russianaeros.com>> wrote:
>>
>>> I believe there is also a three blade metal prop from Avia in
>>> the Czech Republic. However it is quite heavy and non--aerobatic.
>>> Richard Goode Aerobatics
>>> Rhodds Farm
>>> Lyonshall
>>> Hereford
>>> HR5 3LW
>>> Tel: +44 (0) 1544 340120
>>> Fax: +44 (0) 1544 340129
>>> www.russianaeros.com <http://www.russianaeros.com/>
>>> *From:*owner-yak-list-server@matronics.com
>>> <mailto:owner-yak-list-server@matronics.com>
>>> [mailto:owner-yak-list-server@matronics.com] *On Behalf Of
>>> *George S. Coy
>>> *Sent:* 04 November 2014 16:56
>>> *To:* yak-list@matronics.com <mailto:yak-list@matronics.com>
>>> *Subject:* RE: Yak-List: Metal Prop
>>> Yes, there is a 3 blade Hartzell. They are often installed on
>>> Murphy Moose. I did the flight testing at Hartzell many years
>>> ago. I am still a dealer for this prop.
>>> George Coy
>>> *From:*owner-yak-list-server@matronics.com
>>> <mailto:owner-yak-list-server@matronics.com>
>>> [mailto:owner-yak-list-server@matronics.com] *On Behalf Of *Cory
>>> Robin
>>> *Sent:* Tuesday, November 04, 2014 11:46 AM
>>> *To:* yak-list@matronics.com <mailto:yak-list@matronics.com>
>>> *Subject:* Yak-List: Metal Prop
>>> Anyone aware of any metal propeller options for the M14P?
>>>
>>> Cory Robin
>>> Chief Executive Officer
>>> <~WRD000.jpg>
>>> SkyVantage Corporation
>>> 5526 West 13400 South, Suite 207
>>> Herriman, UT 84096
>>> United States of America
>>> US Ph. +1-801-649-2925 ext. 301
>>> Skype: skyvantage (calls only) ext. 301
>>> Email: crobin@skyvantage.com <mailto:crobin@skyvantage.com>
>>> Website: http://www.skyvantage.com <http://www.skyvantage.com/>
>>> Join us on Facebook! www.facebook.com/skyvantage
>>> <http://www.facebook.com/skyvantage>
>>> * *
>>> * *
>>> * *
>>> * *
>>> *www.aeroelectric.com <http://www.aeroelectric.com/>*
>>> *www.buildersbooks.com <http://www.buildersbooks.com/>*
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>>> *http://www.matronics.com/contribution*
>>> * *
>>> *http://www.matronics.com/Navigator?Yak-List*
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>>> *http://forums.matronics.com <http://forums.matronics.com/>*
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>>
>> _blank">www.aeroelectric.com <http://www.aeroelectric.com/>
>> .com" target="_blank">www.buildersbooks.com
>> <http://www.buildersbooks.com/> ="_blank">www.homebuilthelp.com
>> <http://www.homebuilthelp.com/> ="_blank">www.mypilotstore.com
>> <http://www.mypilotstore.com/> ank">www.mrrace.com
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>> <68992_10152752200891192_3706082317252171052_n.jpg>
> *
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Message 5
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The M 14 P is, of course, a geared engine, so the propeller turns at 0.658
times the speed of the engine. So at 101%, which equates to 2950 rpm, the
propeller is turning at 1941 rpm!
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
Sent: 05 November 2014 13:17
Subject: Re: Yak-List: Metal Prop
Also, I don't know the max design RPM limits on the Chinese blades which
turn 2400/2450 when installed on the HS6A engine. Turning them up to the M14
capable RPM of 2900 could possibly stress the blades more than they were
designed to be run at. If Jill at M14P did some testing on this, she may
know the answer.
Dennis
A. Dennis Savarese
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 11/5/2014 6:51 AM, A. Dennis Savarese wrote:
Although the Russian and Chinese prop hubs appear very similar, the threads
on the blade shanks of the Chinese blades are very coarse compared to the
threads on the Russian blades. Thus it would require replacement of the
castellated nut assemblies. If I remember correctly, the large, flat
bearings are the same size. So maybe the assemblies are the same size too.
I wonder if it is possible to remove the castellated nut assembly on the
sides of the Chinese hub and install them in a blank Russian hub? If that
were possible, I guess one could use a set of Chinese metal blades. But I
don't know if the castellated nut assemblies will interchange or not.
Dennis
_____
From: Roger Kemp <mailto:f16viperdoc@me.com> <f16viperdoc@me.com>
<mailto:yak-list@matronics.com> <yak-list@matronics.com>
Sent: Tuesday, November 4, 2014 7:19 PM
Subject: Re: Yak-List: Metal Prop
Copy Cory. I can understand your agist.
Doc
Sent from my iPad
On Nov 4, 2014, at 5:04 PM, Robin Hou <rmhou@yahoo.com> wrote:
Call M14P. They installed Chinese blades in Russian hub. But it was for
ground tested only, I think. It never flew; not sure why.
On Tuesday, November 4, 2014 2:39 PM, Cory Robin <crobin@skyvantage.com>
wrote:
My M-14P is on a Wilga. I fly from backcountry/unimproved strips all the
time.. Taking rocks through my all composite Whirlwind propeller is really
proving to be bad news. So I'm open to options appropriate for my
application.
Cory Robin
Chief Executive Officer
Image removed by sender.
SkyVantage Corporation
5526 West 13400 South, Suite 207
Herriman, UT 84096
United States of America
US Ph. +1-801-649-2925 ext. 301
Skype: skyvantage (calls only) ext. 301
Email: crobin@skyvantage.com
Website: http://www.skyvantage.com <http://www.skyvantage.com/>
Join us on Facebook! www.facebook.com/skyvantage
On Tue, Nov 4, 2014 at 1:46 PM, Roger Kemp <f16viperdoc@me.com> wrote:
Why? That composite wood prop is protective in its self. That small
supercharger shaft is going take a beating with a prop strike with a metal
prop. Not to say it won't with the wood but not as much damage will be
transmitted to the other pinion gears as will be with a metal prop.
Doc
Sent from my iPad
On Nov 4, 2014, at 11:15 AM, Richard Goode <richard.goode@russianaeros.com>
wrote:
I believe there is also a three blade metal prop from Avia in the Czech
Republic. However it is quite heavy and non--aerobatic.
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com <http://www.russianaeros.com/>
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of George S. Coy
Sent: 04 November 2014 16:56
Subject: RE: Yak-List: Metal Prop
Yes, there is a 3 blade Hartzell. They are often installed on Murphy Moose.
I did the flight testing at Hartzell many years ago. I am still a dealer for
this prop.
George Coy
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Cory Robin
Sent: Tuesday, November 04, 2014 11:46 AM
Subject: Yak-List: Metal Prop
Anyone aware of any metal propeller options for the M14P?
Cory Robin
Chief Executive Officer
<~WRD000.jpg>
SkyVantage Corporation
5526 West 13400 South, Suite 207
Herriman, UT 84096
United States of America
US Ph. +1-801-649-2925 ext. 301
Skype: skyvantage (calls only) ext. 301
Email: crobin@skyvantage.com
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I understand. that is exactly why we had Hartzell develop a metal prop
for the Moose. Particularly for the seaplane guys.
George
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Cory Robin
Sent: Tuesday, November 04, 2014 5:25 PM
Subject: Re: Yak-List: Metal Prop
My M-14P is on a Wilga. I fly from backcountry/unimproved strips all
the time.. Taking rocks through my all composite Whirlwind propeller is
really proving to be bad news. So I'm open to options appropriate for
my application.
Cory Robin
Chief Executive Officer
Image removed by sender.
SkyVantage Corporation
5526 West 13400 South, Suite 207
Herriman, UT 84096
United States of America
US Ph. +1-801-649-2925 ext. 301
Skype: skyvantage (calls only) ext. 301
Email: crobin@skyvantage.com
Website: http://www.skyvantage.com
Join us on Facebook! www.facebook.com/skyvantage
On Tue, Nov 4, 2014 at 1:46 PM, Roger Kemp <f16viperdoc@me.com> wrote:
Why? That composite wood prop is protective in its self. That small
supercharger shaft is going take a beating with a prop strike with a
metal prop. Not to say it won't with the wood but not as much damage
will be transmitted to the other pinion gears as will be with a metal
prop.
Doc
Sent from my iPad
On Nov 4, 2014, at 11:15 AM, Richard Goode
<richard.goode@russianaeros.com> wrote:
I believe there is also a three blade metal prop from Avia in the Czech
Republic. However it is quite heavy and non--aerobatic.
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of George S. Coy
Sent: 04 November 2014 16:56
Subject: RE: Yak-List: Metal Prop
Yes, there is a 3 blade Hartzell. They are often installed on Murphy
Moose. I did the flight testing at Hartzell many years ago. I am still
a dealer for this prop.
George Coy
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Cory Robin
Sent: Tuesday, November 04, 2014 11:46 AM
Subject: Yak-List: Metal Prop
Anyone aware of any metal propeller options for the M14P?
Cory Robin
Chief Executive Officer
<~WRD000.jpg>
SkyVantage Corporation
5526 West 13400 South, Suite 207
Herriman, UT 84096
United States of America
US Ph. +1-801-649-2925 ext. 301
Skype: skyvantage (calls only) ext. 301
Email: crobin@skyvantage.com
Website: http://www.skyvantage.com
Join us on Facebook! www.facebook.com/skyvantage
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As is the Chinese Huosai engine. Max. engine RPM is 2350, with a gear
ratio of 0.787 that is a Max. prop RPM of 1850.
Walt
From: Richard Goode
Sent: Wednesday, November 05, 2014 5:36 AM
Subject: RE: Yak-List: Metal Prop
The M 14 P is, of course, a geared engine, so the propeller turns at
0.658 times the speed of the engine. So at 101%, which equates to 2950
rpm, the propeller is turning at 1941 rpm!
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis
Savarese
Sent: 05 November 2014 13:17
Subject: Re: Yak-List: Metal Prop
Also, I don't know the max design RPM limits on the Chinese blades which
turn 2400/2450 when installed on the HS6A engine. Turning them up to the
M14 capable RPM of 2900 could possibly stress the blades more than they
were designed to be run at. If Jill at M14P did some testing on this,
she may know the answer.
Dennis
A. Dennis Savarese334-546-8182 (mobile)www.yak-52.comSkype - Yakguy1On
11/5/2014 6:51 AM, A. Dennis Savarese wrote:
Although the Russian and Chinese prop hubs appear very similar, the
threads on the blade shanks of the Chinese blades are very coarse
compared to the threads on the Russian blades. Thus it would require
replacement of the castellated nut assemblies. If I remember correctly,
the large, flat bearings are the same size. So maybe the assemblies are
the same size too. I wonder if it is possible to remove the
castellated nut assembly on the sides of the Chinese hub and install
them in a blank Russian hub? If that were possible, I guess one could
use a set of Chinese metal blades. But I don't know if the castellated
nut assemblies will interchange or not.
Dennis
-------------------------------------------------------------------------
-----
From: Roger Kemp mailto:f16viperdoc@me.com
To: mailto:yak-list@matronics.com mailto:yak-list@matronics.com
Sent: Tuesday, November 4, 2014 7:19 PM
Subject: Re: Yak-List: Metal Prop
Copy Cory. I can understand your agist.
Doc
Sent from my iPad
On Nov 4, 2014, at 5:04 PM, Robin Hou <rmhou@yahoo.com> wrote:
Call M14P. They installed Chinese blades in Russian hub. But it was
for ground tested only, I think. It never flew; not sure why.
On Tuesday, November 4, 2014 2:39 PM, Cory Robin
<crobin@skyvantage.com> wrote:
My M-14P is on a Wilga. I fly from backcountry/unimproved strips
all the time.. Taking rocks through my all composite Whirlwind
propeller is really proving to be bad news. So I'm open to options
appropriate for my application.
Cory Robin
Chief Executive Officer
SkyVantage Corporation
5526 West 13400 South, Suite 207
Herriman, UT 84096
United States of America
US Ph. +1-801-649-2925 ext. 301
Skype: skyvantage (calls only) ext. 301
Email: crobin@skyvantage.com
Website: http://www.skyvantage.com
Join us on Facebook! www.facebook.com/skyvantage
On Tue, Nov 4, 2014 at 1:46 PM, Roger Kemp <f16viperdoc@me.com>
wrote:
Why? That composite wood prop is protective in its self. That small
supercharger shaft is going take a beating with a prop strike with a
metal prop. Not to say it won't with the wood but not as much damage
will be transmitted to the other pinion gears as will be with a metal
prop.
Doc
Sent from my iPad
On Nov 4, 2014, at 11:15 AM, Richard Goode
<richard.goode@russianaeros.com> wrote:
I believe there is also a three blade metal prop from Avia in the
Czech Republic. However it is quite heavy and non--aerobatic.
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of George S. Coy
Sent: 04 November 2014 16:56
To: yak-list@matronics.com
Subject: RE: Yak-List: Metal Prop
Yes, there is a 3 blade Hartzell. They are often installed on
Murphy Moose. I did the flight testing at Hartzell many years ago. I am
still a dealer for this prop.
George Coy
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Cory Robin
Sent: Tuesday, November 04, 2014 11:46 AM
To: yak-list@matronics.com
Subject: Yak-List: Metal Prop
Anyone aware of any metal propeller options for the M14P?
Cory Robin
Chief Executive Officer
<~WRD000.jpg>
SkyVantage Corporation
5526 West 13400 South, Suite 207
Herriman, UT 84096
United States of America
US Ph. +1-801-649-2925 ext. 301
Skype: skyvantage (calls only) ext. 301
Email: crobin@skyvantage.com
Website: http://www.skyvantage.com
Join us on Facebook! www.facebook.com/skyvantage
www.aeroelectric.comwww.buildersbooks.comwww.homebuilthelp.comwww.mypilot
store.comwww.mrrace.comhttp://www.matronics.com/contribution
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I doubt that the Chinese two blader would handle the extra power of the M14. I
suspect it would have trouble governing the max RPM.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=432976#432976
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