Yak-List Digest Archive

Fri 06/14/19


Total Messages Posted: 15



Today's Message Index:
----------------------
 
     1. 01:02 AM - Re: HS6A Diaphragms (Richard Goode)
     2. 02:11 AM - Re: HS6A Diaphragms (Harv)
     3. 02:50 AM - Re: Re: HS6A Diaphragms (Richard Goode)
     4. 03:43 AM - Re: HS6A Diaphragms (JL2A)
     5. 03:51 AM - Re: HS6A Diaphragms (Harv)
     6. 04:07 AM - Re: W100Plus and Camguard in the M14P (JL2A)
     7. 04:26 AM - Cannot decrease RPM at high speed (JL2A)
     8. 05:50 AM - Re: Re: HS6A Diaphragms (Richard Goode)
     9. 08:35 AM - Re: HS6A Diaphragms (doug sapp)
    10. 09:09 AM - Re: Re: HS6A Diaphragms (Walter Lannon)
    11. 09:27 AM - Re: Re: HS6A Diaphragms (Richard Goode)
    12. 10:22 AM - Re: HS6A Diaphragms (Harv)
    13. 11:13 AM - Re: Re: HS6A Diaphragms (doug sapp)
    14. 08:15 PM - Re: Cannot decrease RPM at high speed (\)
    15. 11:33 PM - Re: HS6A Diaphragms (Harv)
 
 
 


Message 1


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    Time: 01:02:18 AM PST US
    From: "Richard Goode" <richard.goode@russianaeros.com>
    Subject: HS6A Diaphragms
    Although there are many and surprising differences between the Russian AI14 and Chinese HS-6 engines, the carburettors are identical, and with Aerometal, our partner in Hungary, we have all the tooling and parts to totally overhaul these carburettors. Please contact me off-list for more information. Richard RICHARD GOODE AEROBATICS Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of JL2A Sent: 13 June 2019 22:50 Subject: Yak-List: HS6A Diaphragms --> <info@flyingwarbirds.com.au.matronics.com> Doug? Anyone!? Got a few spare carbies here that I'd like to overhaul, preserve and green tag for future use. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489648#489648


    Message 2


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    Time: 02:11:06 AM PST US
    Subject: Re: HS6A Diaphragms
    From: "Harv" <martin.harvey@kbr.com>
    If you are referring to HS6 (CJ6a) carbs then they are not the same as the m14p unit and the diaphragms are unique to both engines and not interchangeable. Doug S is always my source of membrane when we change them (we set a 6 year life for this item, better safe than sorry). Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489651#489651


    Message 3


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    Time: 02:50:28 AM PST US
    From: "Richard Goode" <richard.goode@russianaeros.com>
    Subject: Re: HS6A Diaphragms
    I was not referring to the M 14 P carburettor, but to the AI 14 carburettor, which is identical to the HS-6 carburettor, and therefore we have 40 years of experience in overhauling them! By way of background, Ivchenko in Russia developed the AI 14 engine, and the Russians gave the basic design to the Chinese, along with the Yak 18 A aircraft. As you know the Chinese changed the airframe radically, but also made a significant number of changes to the engine to reduce the HS-6. In the meantime the Russian authorities told Ivchenko that they should concentrate on small jet engines, and gave the AI 14 design to a new design bureau in Voronezh, headed up by Vedenyeev who went on to develop the M 14 P engine. Richard RICHARD GOODE AEROBATICS Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Harv Sent: 14 June 2019 10:11 Subject: Yak-List: Re: HS6A Diaphragms If you are referring to HS6 (CJ6a) carbs then they are not the same as the m14p unit and the diaphragms are unique to both engines and not interchangeable. Doug S is always my source of membrane when we change them (we set a 6 year life for this item, better safe than sorry). Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489651#489651


    Message 4


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    Time: 03:43:46 AM PST US
    Subject: Re: HS6A Diaphragms
    From: "JL2A" <info@flyingwarbirds.com.au.matronics.com>
    excellent news! emailed. cheers Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489654#489654


    Message 5


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    Time: 03:51:56 AM PST US
    Subject: Re: HS6A Diaphragms
    From: "Harv" <martin.harvey@kbr.com>
    Thanks Richard thats also good to know as we only tend to keep one membrane here at a time. Do they have a shelf life, being rubber (or some kind of neoprene) they must go off even on the shelf. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489655#489655


    Message 6


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    Time: 04:07:44 AM PST US
    Subject: Re: W100Plus and Camguard in the M14P
    From: "JL2A" <info@flyingwarbirds.com.au.matronics.com>
    Phillips 25W-60 since 2015. Oil specifically formulated for radials (although this could mean simply the viscosity. Who knows, marketing :/) No additives, but our aircraft fly at least once per week. No issues. Before 2015 we ran Aeroshell 100 as was recommended to me by the old hands. That engine has subsequently been pulled apart and when examined closely many of the small oil(?) holes in the conrod's small end were blocked with carbon. We are now allowed to run our engines 'on condition' rather than chuck them at 600 hours. My conclusion is that if you aren't running an ashless dispersant oil, you'd have to stick with the original overhaul period. Or risk blocked oil galleries. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489656#489656


    Message 7


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    Time: 04:26:29 AM PST US
    Subject: Cannot decrease RPM at high speed
    From: "JL2A" <info@flyingwarbirds.com.au.matronics.com>
    We have installed the Chinese 3 blade JL2B on a CJ with M14P. It has the small counterweights and spinner. Propeller behaves normally except that as airspeed increases, the RPM cannot be decreased even with prop control lever all the way aft. For example, after take off set 80% RPM for cruise climb - then level out and let airspeed increase then the RPM cannot be reduced. At slower airspeeds it will go back to 50-60% depending on airspeed (around 120 KIAS) Is this a function of the small counterweights? Or more likely a governor spring or set up issue? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489657#489657


    Message 8


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    Time: 05:50:32 AM PST US
    From: "Richard Goode" <richard.goode@russianaeros.com>
    Subject: Re: HS6A Diaphragms
    Officially the six-year "life" is after two years of storage, so if you don't install within two years, the service life reduces. But they are an important item a few months ago we had to perform a shock-load inspection on the engine of a French 52 whose pilot was flying it when the engine started running rough and then got worse and then finally stopped and so he pulled off quite a good forced landing in a small field, but hit the propeller. The shock-load disassembly inspection and reassembly didn't reveal any internal problems, but we then put the engine onto the dynamometer, and it simply wouldn't run and we realised that the original problem had been the main carburettor membrane! Richard RICHARD GOODE AEROBATICS Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Harv Sent: 14 June 2019 11:52 Subject: Yak-List: Re: HS6A Diaphragms Thanks Richard thats also good to know as we only tend to keep one membrane here at a time. Do they have a shelf life, being rubber (or some kind of neoprene) they must go off even on the shelf. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489655#489655


    Message 9


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    Time: 08:35:48 AM PST US
    From: doug sapp <dougsappllc@gmail.com>
    Subject: Re: HS6A Diaphragms
    Sorry guys I am out of stock on the carb diaphragms at this time. Doug On Fri, Jun 14, 2019 at 1:07 AM Richard Goode < richard.goode@russianaeros.com> wrote: > richard.goode@russianaeros.com> > > Although there are many and surprising differences between the Russian AI14 > and Chinese HS-6 engines, the carburettors are identical, and with > Aerometal, our partner in Hungary, we have all the tooling and parts to > totally overhaul these carburettors. Please contact me off-list for more > information. > > Richard > > > RICHARD GOODE AEROBATICS > Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK > Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 > e-mail: richard.goode@russianaeros.com > www.russianaeros.com > WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES > In partnership with Aerometal Kft, Hungary. > > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] On Behalf Of JL2A > Sent: 13 June 2019 22:50 > To: yak-list@matronics.com > Subject: Yak-List: HS6A Diaphragms > > --> <info@flyingwarbirds.com.au.matronics.com> > > Doug? Anyone!? > > Got a few spare carbies here that I'd like to overhaul, preserve and green > tag for future use. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=489648#489648 > >


    Message 10


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    Time: 09:09:07 AM PST US
    From: "Walter Lannon" <wlannon@shaw.ca>
    Subject: Re: HS6A Diaphragms
    Hi Richard; The HS6 engine is history! It was a license built version of the AI14 for initial production of the Chinese designed CJ6 trainer. While there are probably a few HS6's floating around, most are HS6A engines which, other than the basic design (shared by the M14), are internally different in virtually every respect; EG: Carb. - increased venturi size, Piston and rings - improved oil control, Blower ratio & rated power, etc. Some one on this list recently made a very good case that the carb. diaphragm for the HS6A and M14P (and possibly all other models) was interchangeable. Though I have not yet had occasion to confirm or deny I suspect that is likely correct. Cheers; Walt -----Original Message----- From: Richard Goode Sent: Friday, June 14, 2019 2:36 AM Subject: RE: Yak-List: Re: HS6A Diaphragms <richard.goode@russianaeros.com> I was not referring to the M 14 P carburettor, but to the AI 14 carburettor, which is identical to the HS-6 carburettor, and therefore we have 40 years of experience in overhauling them! By way of background, Ivchenko in Russia developed the AI 14 engine, and the Russians gave the basic design to the Chinese, along with the Yak 18 A aircraft. As you know the Chinese changed the airframe radically, but also made a significant number of changes to the engine to reduce the HS-6. In the meantime the Russian authorities told Ivchenko that they should concentrate on small jet engines, and gave the AI 14 design to a new design bureau in Voronezh, headed up by Vedenyeev who went on to develop the M 14 P engine. Richard RICHARD GOODE AEROBATICS Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Harv Sent: 14 June 2019 10:11 Subject: Yak-List: Re: HS6A Diaphragms If you are referring to HS6 (CJ6a) carbs then they are not the same as the m14p unit and the diaphragms are unique to both engines and not interchangeable. Doug S is always my source of membrane when we change them (we set a 6 year life for this item, better safe than sorry). Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489651#489651 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus


    Message 11


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    Time: 09:27:35 AM PST US
    From: "Richard Goode" <richard.goode@russianaeros.com>
    Subject: Re: HS6A Diaphragms
    Yes, as I keep saying, we are not very familiar with the Chinese engines, mainly because there are so few in Europe. But we bought a couple of them to dismantle and establish our ability to overhaul them, but sadly found that they really were quite different in many ways to the AI 14. But one thing we established is that the carburettor is the same for AI 14 and HS-6A hence saying that we can overhaul the carburettors and of course supply the diaphragms. Again by way of confirmation, these diaphragms are also the same as in the carburettor of the M 14 engine. Richard RICHARD GOODE AEROBATICS Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Walter Lannon Sent: 14 June 2019 17:08 Subject: Re: Yak-List: Re: HS6A Diaphragms Hi Richard; The HS6 engine is history! It was a license built version of the AI14 for initial production of the Chinese designed CJ6 trainer. While there are probably a few HS6's floating around, most are HS6A engines which, other than the basic design (shared by the M14), are internally different in virtually every respect; EG: Carb. - increased venturi size, Piston and rings - improved oil control, Blower ratio & rated power, etc. Some one on this list recently made a very good case that the carb. diaphragm for the HS6A and M14P (and possibly all other models) was interchangeable. Though I have not yet had occasion to confirm or deny I suspect that is likely correct. Cheers; Walt -----Original Message----- From: Richard Goode Sent: Friday, June 14, 2019 2:36 AM Subject: RE: Yak-List: Re: HS6A Diaphragms <richard.goode@russianaeros.com> I was not referring to the M 14 P carburettor, but to the AI 14 carburettor, which is identical to the HS-6 carburettor, and therefore we have 40 years of experience in overhauling them! By way of background, Ivchenko in Russia developed the AI 14 engine, and the Russians gave the basic design to the Chinese, along with the Yak 18 A aircraft. As you know the Chinese changed the airframe radically, but also made a significant number of changes to the engine to reduce the HS-6. In the meantime the Russian authorities told Ivchenko that they should concentrate on small jet engines, and gave the AI 14 design to a new design bureau in Voronezh, headed up by Vedenyeev who went on to develop the M 14 P engine. Richard RICHARD GOODE AEROBATICS Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Harv Sent: 14 June 2019 10:11 Subject: Yak-List: Re: HS6A Diaphragms If you are referring to HS6 (CJ6a) carbs then they are not the same as the m14p unit and the diaphragms are unique to both engines and not interchangeable. Doug S is always my source of membrane when we change them (we set a 6 year life for this item, better safe than sorry). Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489651#489651 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus


    Message 12


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    Time: 10:22:51 AM PST US
    Subject: Re: HS6A Diaphragms
    From: "Harv" <martin.harvey@kbr.com>
    Richard Are the any of the hs6 engines you have complete minus accessories ( either assembled or in bits) and would you be looking to get rid of some or any of them if not rebuilding? Feel free to contact me off list Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489664#489664


    Message 13


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    Time: 11:13:27 AM PST US
    From: doug sapp <dougsappllc@gmail.com>
    Subject: Re: HS6A Diaphragms
    Martin, We are having problems with your email: ----- The following addresses had permanent fatal errors ----- <martin.harvey@kbr.com> (reason: 550 Rule imposed mailbox access for martin.harvey@kbr.com refu sed: user invalid Doug On Fri, Jun 14, 2019 at 9:33 AM Richard Goode < richard.goode@russianaeros.com> wrote: > richard.goode@russianaeros.com> > > Yes, as I keep saying, we are not very familiar with the Chinese engines, > mainly because there are so few in Europe. But we bought a couple of them > to > dismantle and establish our ability to overhaul them, but sadly found tha t > they really were quite different in many ways to the AI 14. But one thing > we > established is that the carburettor is the same for AI 14 and HS-6A =93 hence > saying that we can overhaul the carburettors and of course supply the > diaphragms. Again by way of confirmation, these diaphragms are also the > same > as in the carburettor of the M 14 engine. > > Richard > > RICHARD GOODE AEROBATICS > Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK > Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 > e-mail: richard.goode@russianaeros.com > www.russianaeros.com > WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES > In partnership with Aerometal Kft, Hungary. > > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Walter Lannon > Sent: 14 June 2019 17:08 > To: yak-list@matronics.com > Subject: Re: Yak-List: Re: HS6A Diaphragms > > > Hi Richard; > > The HS6 engine is history! It was a license built version of the AI14 > for > initial production of the Chinese designed CJ6 trainer. > > While there are probably a few HS6's floating around, most are HS6A > engines > which, other than the basic design (shared by the M14), are internally > different in virtually every respect; EG: Carb. - increased venturi siz e, > Piston and rings - improved oil control, Blower ratio & rated power, etc. > > Some one on this list recently made a very good case that the carb. > diaphragm for the HS6A and M14P (and possibly all other models) was > interchangeable. > Though I have not yet had occasion to confirm or deny I suspect that is > likely correct. > > Cheers; > Walt > > -----Original Message----- > From: Richard Goode > Sent: Friday, June 14, 2019 2:36 AM > To: yak-list@matronics.com > Subject: RE: Yak-List: Re: HS6A Diaphragms > > <richard.goode@russianaeros.com> > > I was not referring to the M 14 P carburettor, but to the AI 14 > carburettor, > which is identical to the HS-6 carburettor, and therefore we have 40 year s > of experience in overhauling them! > > By way of background, Ivchenko in Russia developed the AI 14 engine, and > the > Russians gave the basic design to the Chinese, along with the Yak 18 A > aircraft. As you know the Chinese changed the airframe radically, but als o > made a significant number of changes to the engine to reduce the HS-6. In > the meantime the Russian authorities told Ivchenko that they should > concentrate on small jet engines, and gave the AI 14 design to a new desi gn > bureau in Voronezh, headed up by Vedenyeev who went on to develop the M 1 4 > P > engine. > > Richard > > > RICHARD GOODE AEROBATICS > Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK > Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 > e-mail: richard.goode@russianaeros.com > www.russianaeros.com > WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with > Aerometal Kft, Hungary. > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Harv > Sent: 14 June 2019 10:11 > To: yak-list@matronics.com > Subject: Yak-List: Re: HS6A Diaphragms > > > If you are referring to HS6 (CJ6a) carbs then they are not the same as th e > m14p unit and the diaphragms are unique to both engines and not > interchangeable. > > Doug S is always my source of membrane when we change them (we set a 6 ye ar > life for this item, better safe than sorry). > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=489651#489651 > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > =========== =========== =========== =========== =========== > >


    Message 14


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    Time: 08:15:23 PM PST US
    From: "\"" <cjpilot710@aol.com>
    Subject: Re: Cannot decrease RPM at high speed
    Check your low pitch setting.Jim "Pappy" Goolsby -----Original Message----- From: JL2A <info@flyingwarbirds.com.au.matronics.com> Sent: Fri, Jun 14, 2019 7:27 am Subject: Yak-List: Cannot decrease RPM at high speed s.com> We have installed the Chinese 3 blade JL2B on a CJ with M14P. It has the sm all counterweights and spinner. Propeller behaves normally except that as airspeed increases, the RPM canno t be decreased even with prop control lever all the way aft. For example, after take off set 80% RPM for cruise climb - then level out a nd let airspeed increase then the RPM cannot be reduced. At slower airspeed s it will go back to 50-60% depending on airspeed (around 120 KIAS) Is this a function of the small counterweights? Or more likely a governor spring or set up issue? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489657#489657 S - WIKI - - =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.


    Message 15


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    Time: 11:33:32 PM PST US
    Subject: Re: HS6A Diaphragms
    From: "Harv" <martin.harvey@kbr.com>
    Hi Doug Ive updated my contact email as the KBR is no longer in use Rgs Harv Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489670#489670




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