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
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| Subject: | 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
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On Sat, Feb 3, 2024 at 2:33=AFAM Yak-List Digest Server <
yak-list@matronics.com> wrote:
> *
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> ========================
> Online Versions of Today's List Digest Archive
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Chapter 24-02-02&Archive=Yak
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> Yak-List Digest Archive
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> Total Messages Posted Fri 02/02/24: 1
> ----------------------------------------------------------
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> 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" <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 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
>
>
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>
Message 2
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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: <mailto:richard.goode@russianaeros.com>
richard.goode@russianaeros.com
<http://www.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
<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://forums.matronics.com/viewtopic.php?p=513186#513186
http://www.matronics.com/Navigator?Yak-List
https://matronics.com/contribution
Message 3
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How much are used seat- pack chutes? Older but good condition.
Message 4
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| Subject: | Re: 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 <richard.goode@russian
aeros.com>
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
>
>
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