---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sat 02/03/24: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:37 AM - Re: Yak-List Digest: 1 Msgs - 02/02/24 (Craig Payne) 2. 03:44 AM - Re: Mag Timing CD5 (Richard Goode) 3. 12:55 PM - Parachutes (Bill) 4. 10:22 PM - Re: Mag Timing CD5 (Justin Drafts) ________________________________ Message 1 _____________________________________ Time: 03:37:31 AM PST US From: Craig Payne Subject: Yak-List: Re: Yak-List Digest: 1 Msgs - 02/02/24 Reading through my old document from 2014 and CJ Maint. Vol I, Appendix VII, the CD-5 mag setting resulted in total advance applicable to the octane rating of the fuel the Chinese had at the time. The M-14P total advance is a lower value, using the fixed magneto that limits advance to 22-24 degrees by piston. ADJUSTING the setting of the CD-5 to achieve the 24 degrees resulted in about a two degree retarded value from what the Chinese used on a slower turning engine, using lower octane. These are conservative numbers, given the wide range of altitudes and air density encountered during flight. Using manual leaning, the Huosai engine can be adjusted to conditions by the pilot. On the M-14P, the carb settings do the adjustments... how accurately was the carb was set?? Leaning for max efficiency on flat engines differs from radials because radials distribute the mixture more evenly to each cylinder. Pays your money, takes your chances. Craig Payne Virus-free.www.avg.com <#m_-6217763269057398783_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Sat, Feb 3, 2024 at 2:33=AFAM Yak-List Digest Server < yak-list@matronics.com> wrote: > * > > ======================== > Online Versions of Today's List Digest Archive > ======================== > > 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=html& Chapter 24-02-02&Archive=Yak > > Text Version: > > > http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&C hapter 24-02-02&Archive=Yak > > > ======================== ======================= > EMail Version of Today's List Digest Archive > ======================== ======================= > > > ---------------------------------------------------------- > Yak-List Digest Archive > --- > Total Messages Posted Fri 02/02/24: 1 > ---------------------------------------------------------- > > > Today's Message Index: > ---------------------- > > 1. 09:52 AM - Mag Timing CD5 (glipaz) > > > ________________________________ Message 1 > _____________________________________ > > > Time: 09:52:47 AM PST US > Subject: Yak-List: Mag Timing CD5 > From: "glipaz" > > > Brain trust: > > I know that on an M-14p with a Russian M9F magneto, timing on the prop is > set at > 14-16* BTDC. This translates to around 22-24* BTDC on the crank. > > Assuming an M-14p motor with CD-5 (Chinese)magnetos stamped 25*, what is > the proper > angle on the prop BTDC? > > According to Craig Paynes chart for this configuration it suggests 8.8* > BTDC on > the crank and 5.8* BTDC on the prop. I dont understand this figure. > > Gil > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=513186#513186 > > =========== =========== =========== =========== =========== > > ________________________________ Message 2 _____________________________________ Time: 03:44:24 AM PST US From: "Richard Goode" Subject: RE: Yak-List: Mag Timing CD5 It is not quite so simple =93 but the attached paper might help! 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 SOVIET & CHINESE RADIAL AIRCRAFT ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com On Behalf Of glipaz Sent: 02 February 2024 17:52 Subject: Yak-List: Mag Timing CD5 glipaz@yahoo.com> Brain trust: I know that on an M-14p with a Russian M9F magneto, timing on the prop is set at 14-16* BTDC. This translates to around 22-24* BTDC on the crank. Assuming an M-14p motor with CD-5 (Chinese)magnetos stamped 25*, what is the proper angle on the prop BTDC? According to Craig Payne=C3=A2=82=AC=84=A2s chart for this configuration it suggests 8.8* BTDC on the crank and 5.8* BTDC on the prop. I don=C3=A2=82=AC=84=A2t understand this figure. Gil Read this topic online here: http://forums.matronics.com/viewtopic.php?p=513186#513186 http://www.matronics.com/Navigator?Yak-List https://matronics.com/contribution ________________________________ Message 3 _____________________________________ Time: 12:55:20 PM PST US From: Bill Subject: Yak-List: Parachutes How much are used seat- pack chutes? Older but good condition. ________________________________ Message 4 _____________________________________ Time: 10:22:33 PM PST US From: Justin Drafts Subject: Re: Yak-List: Mag Timing CD5 Very good document Richard, thanks! Do you have such a document for the Chinese Housai? Thanks, Justin Drafts N280NC On Sat, Feb 3, 2024 at 3:50=AFAM Richard Goode wrote: > It is not quite so simple =93 but the attached paper might help! > > > 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 > > *W**ORLD LEADERS IN SOVIET & CHINESE RADIAL AIRCRAFT ENGINES* > > *In partnership with Aerometal Kft, Hungary.* > > > -----Original Message----- > From: owner-yak-list-server@matronics.com < > owner-yak-list-server@matronics.com> On Behalf Of glipaz > Sent: 02 February 2024 17:52 > To: yak-list@matronics.com > Subject: Yak-List: Mag Timing CD5 > > > > > Brain trust: > > > I know that on an M-14p with a Russian M9F magneto, timing on the prop is > set at 14-16* BTDC. This translates to around 22-24* BTDC on the crank. > > > Assuming an M-14p motor with CD-5 (Chinese)magnetos stamped 25*, what is > the proper angle on the prop BTDC? > > > According to Craig Payne=C3=A2=82=AC=84=A2s chart for this configur ation it suggests 8.8* > BTDC on the crank and 5.8* BTDC on the prop. I don=C3=A2=82=AC=84 =A2t understand this > figure. > > > Gil > > > Read this topic online here: > > > http://forums.matronics.com/viewtopic.php?p=513186#513186 > > > - The Yak-List Email Forum - > > --> http://www.matronics.com/Navigator?Yak-List > > - MATRONICS WEB FORUMS available via the Web Forums! > > --> http://forums.matronics.com > > - NEW MATRONICS LIST WIKI Matronics Email List Wiki! > > --> http://wiki.matronics.com > > - List Contribution Web Site style='mso-spacerun:yes'> Th ank > you for your generous > style='mso-spacerun:yes'> -Matt Dralle, > style='mso-spacerun:yes'> --> https://matronics.com/contribution > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse Digests http://www.matronics.com/digest/yak-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.