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jan.mevis(at)informavia.b
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 Posted: Thu Oct 13, 2011 10:10 am Post subject: mag coils |
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Dear all,
Attached you'll see a picture of our first prototype of a newly made mag coil. It is not an old rewound coil but a completely new product.
This took quite some time, and the prototype IS expensive. On the other hand, only the best state-of-the-art new materials were used.
The design data were reverse engineered from three Russian coils (one of them as good as new, used only for measuring; the other two were much older but still working; the oldest coil has been sacrificed).
Testing (on the ground, since we must not fly anymore with our RA registered Yaks) will start soon.
We're working on a bench test system to simulate the real engine environment so that we can collect test data for longer periods.
I don't know yet if it'll be economically feasible to make them on a larger scale. So absolutely now idea yet about prices, if we decide to produce them.
But it definitely was fun to do all the reverse engineering.
BR,
Jan Mevis
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dougsappllc(at)gmail.com
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| Posted: Thu Oct 13, 2011 10:29 am Post subject: mag coils |
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Jan,I well understand the price of prototypes, most times it is retrievable only after the sale of many, many production units. Do you have a idea as to what the actual production coils will cost?
Doug
On Thu, Oct 13, 2011 at 11:07 AM, Jan Mevis <jan.mevis(at)informavia.be (jan.mevis(at)informavia.be)> wrote:
[quote] Dear all,
Attached you'll see a picture of our first prototype of a newly made mag coil. It is not an old rewound coil but a completely new product.
This took quite some time, and the prototype IS expensive. On the other hand, only the best state-of-the-art new materials were used.
The design data were reverse engineered from three Russian coils (one of them as good as new, used only for measuring; the other two were much older but still working; the oldest coil has been sacrificed).
Testing (on the ground, since we must not fly anymore with our RA registered Yaks) will start soon.
We're working on a bench test system to simulate the real engine environment so that we can collect test data for longer periods.
I don't know yet if it'll be economically feasible to make them on a larger scale. So absolutely now idea yet about prices, if we decide to produce them.
But it definitely was fun to do all the reverse engineering.
BR,
Jan Mevis
[b]
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GeorgeCoy
Joined: 02 Dec 2010
Posts: 310
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| Posted: Thu Oct 13, 2011 10:39 am Post subject: mag coils |
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I think Carl and Jill Had some new coils made some time ago.
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of doug sapp
Sent: Thursday, October 13, 2011 2:26 PM
To: yak-list(at)matronics.com
Subject: Re: mag coils
Jan,
I well understand the price of prototypes, most times it is retrievable only after the sale of many, many production units. Do you have a idea as to what the actual production coils will cost?
Doug
On Thu, Oct 13, 2011 at 11:07 AM, Jan Mevis <jan.mevis(at)informavia.be (jan.mevis(at)informavia.be)> wrote:
Dear all,
Attached you'll see a picture of our first prototype of a newly made mag coil. It is not an old rewound coil but a completely new product.
This took quite some time, and the prototype IS expensive. On the other hand, only the best state-of-the-art new materials were used.
The design data were reverse engineered from three Russian coils (one of them as good as new, used only for measuring; the other two were much older but still working; the oldest coil has been sacrificed).
Testing (on the ground, since we must not fly anymore with our RA registered Yaks) will start soon.
We're working on a bench test system to simulate the real engine environment so that we can collect test data for longer periods.
I don't know yet if it'll be economically feasible to make them on a larger scale. So absolutely now idea yet about prices, if we decide to produce them.
But it definitely was fun to do all the reverse engineering.
BR,
Jan Mevis
| Quote: | | http://www.matronics.com/Navigator?Yak-List |
01234567
[quote][b]
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jan.mevis(at)informavia.b
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| Posted: Thu Oct 13, 2011 10:46 am Post subject: mag coils |
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Not yet really, I will first do some serious testing to make certain that it ’s a good product.
The prototype has been made by a specialized company, and they had to subcontract a part of it (the wire used for the secondary is very thin, so problems for machine-winding and for impregnating the insulation).
When we presented the project to this company (they are friends) they thought it to be an easy job … although we warned them …
We’ll reveal the technical details as soon as we’re confident that this coil is really up to the required standards.
We’ll also communicate the results if it’s NOT good ….
BR,
Jan
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of doug sapp
Sent: donderdag 13 oktober 2011 20:26
To: yak-list(at)matronics.com
Subject: Re: mag coils
Jan,
I well understand the price of prototypes, most times it is retrievable only after the sale of many, many production units. Do you have a idea as to what the actual production coils will cost?
Doug
On Thu, Oct 13, 2011 at 11:07 AM, Jan Mevis <jan.mevis(at)informavia.be (jan.mevis(at)informavia.be)> wrote:
Dear all,
Attached you'll see a picture of our first prototype of a newly made mag coil. It is not an old rewound coil but a completely new product.
This took quite some time, and the prototype IS expensive. On the other hand, only the best state-of-the-art new materials were used.
The design data were reverse engineered from three Russian coils (one of them as good as new, used only for measuring; the other two were much older but still working; the oldest coil has been sacrificed).
Testing (on the ground, since we must not fly anymore with our RA registered Yaks) will start soon.
We're working on a bench test system to simulate the real engine environment so that we can collect test data for longer periods.
I don't know yet if it'll be economically feasible to make them on a larger scale. So absolutely now idea yet about prices, if we decide to produce them.
But it definitely was fun to do all the reverse engineering.
BR,
Jan Mevis
| Quote: | | http://www.matronics.com/Navigator?Yak-List |
01234567
[quote][b]
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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GeorgeCoy
Joined: 02 Dec 2010
Posts: 310
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| Posted: Thu Oct 13, 2011 10:55 am Post subject: mag coils |
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The following are the specifications per the Russian Documentation:
Here are the data of the coil of the M9 magnetos:
- the primary winding has 162 spires and the diameter of the wire is 1 millimeter;
- the secondary winding has 13500 spires and the diameter of the wire is 0.071 millimeters;
- the capacitor is between 0.16 and 0.25 microfarads.
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Jan Mevis
Sent: Thursday, October 13, 2011 2:43 PM
To: yak-list(at)matronics.com
Subject: RE: mag coils
Not yet really, I will first do some serious testing to make certain that it ’s a good product.
The prototype has been made by a specialized company, and they had to subcontract a part of it (the wire used for the secondary is very thin, so problems for machine-winding and for impregnating the insulation).
When we presented the project to this company (they are friends) they thought it to be an easy job … although we warned them …
We’ll reveal the technical details as soon as we’re confident that this coil is really up to the required standards.
We’ll also communicate the results if it’s NOT good ….
BR,
Jan
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of doug sapp
Sent: donderdag 13 oktober 2011 20:26
To: yak-list(at)matronics.com
Subject: Re: mag coils
Jan,
I well understand the price of prototypes, most times it is retrievable only after the sale of many, many production units. Do you have a idea as to what the actual production coils will cost?
Doug
On Thu, Oct 13, 2011 at 11:07 AM, Jan Mevis <jan.mevis(at)informavia.be (jan.mevis(at)informavia.be)> wrote:
Dear all,
Attached you'll see a picture of our first prototype of a newly made mag coil. It is not an old rewound coil but a completely new product.
This took quite some time, and the prototype IS expensive. On the other hand, only the best state-of-the-art new materials were used.
The design data were reverse engineered from three Russian coils (one of them as good as new, used only for measuring; the other two were much older but still working; the oldest coil has been sacrificed).
Testing (on the ground, since we must not fly anymore with our RA registered Yaks) will start soon.
We're working on a bench test system to simulate the real engine environment so that we can collect test data for longer periods.
I don't know yet if it'll be economically feasible to make them on a larger scale. So absolutely now idea yet about prices, if we decide to produce them.
But it definitely was fun to do all the reverse engineering.
BR,
Jan Mevis
| Quote: | | http://www.matronics.com/Navigator?Yak-List http://forums.matronics.com http://www.matronics.com/contribution |
012345678901234567
[quote][b]
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jan.mevis(at)informavia.b
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| Posted: Thu Oct 13, 2011 11:25 am Post subject: mag coils |
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Indeed. We found the same data, but a higher capacitance (consistently 0.45).
The Russians (and the Chinese, I suppose ) make them manually, applying an insulation layer after each wound layer on the secondary. I was told that they were made by prisoners …may be not true.
We wanted it done the modern way, first evacuating all the air in between the windings and then impregnating the modern insulation under high temperature. This is the difficult part because this wire is so thin.
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of George Coy
Sent: donderdag 13 oktober 2011 20:53
To: yak-list(at)matronics.com
Subject: RE: mag coils
The following are the specifications per the Russian Documentation:
Here are the data of the coil of the M9 magnetos:
- the primary winding has 162 spires and the diameter of the wire is 1 millimeter;
- the secondary winding has 13500 spires and the diameter of the wire is 0.071 millimeters;
- the capacitor is between 0.16 and 0.25 microfarads.
From: owner-yak-list-server(at)matronics.com (owner-yak-list-server(at)matronics.com) [mailto:owner-yak-list-server(at)matronics.com] ([email][mailto:owner-yak-list-server(at)matronics.com][/email]) On Behalf Of Jan Mevis
Sent: Thursday, October 13, 2011 2:43 PM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: RE: mag coils
Not yet really, I will first do some serious testing to make certain that it ’s a good product.
The prototype has been made by a specialized company, and they had to subcontract a part of it (the wire used for the secondary is very thin, so problems for machine-winding and for impregnating the insulation).
When we presented the project to this company (they are friends) they thought it to be an easy job … although we warned them …
We’ll reveal the technical details as soon as we’re confident that this coil is really up to the required standards.
We’ll also communicate the results if it’s NOT good ….
BR,
Jan
From: owner-yak-list-server(at)matronics.com (owner-yak-list-server(at)matronics.com) [mailto:owner-yak-list-server(at)matronics.com] ([email][mailto:owner-yak-list-server(at)matronics.com][/email]) On Behalf Of doug sapp
Sent: donderdag 13 oktober 2011 20:26
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: mag coils
Jan,
I well understand the price of prototypes, most times it is retrievable only after the sale of many, many production units. Do you have a idea as to what the actual production coils will cost?
Doug
On Thu, Oct 13, 2011 at 11:07 AM, Jan Mevis <jan.mevis(at)informavia.be (jan.mevis(at)informavia.be)> wrote:
Dear all,
Attached you'll see a picture of our first prototype of a newly made mag coil. It is not an old rewound coil but a completely new product.
This took quite some time, and the prototype IS expensive. On the other hand, only the best state-of-the-art new materials were used.
The design data were reverse engineered from three Russian coils (one of them as good as new, used only for measuring; the other two were much older but still working; the oldest coil has been sacrificed).
Testing (on the ground, since we must not fly anymore with our RA registered Yaks) will start soon.
We're working on a bench test system to simulate the real engine environment so that we can collect test data for longer periods.
I don't know yet if it'll be economically feasible to make them on a larger scale. So absolutely now idea yet about prices, if we decide to produce them.
But it definitely was fun to do all the reverse engineering.
BR,
Jan Mevis
0123456789012345678901234567
[quote][b]
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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mark.bitterlich(at)navy.m
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| Posted: Thu Oct 13, 2011 12:59 pm Post subject: mag coils |
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Let me point this out again, which by the way Jan already has a few
times already.
There is a very cheap alternative. Some folks over-seas HAVE to run
stock systems and thus these types of coils are required, regardless of
cost.
However, if you want to make your M-14 or Housai run MUCH better than it
ever has, both at idle and at full power, it is a no-brainer to install
the MSD ignition system in place of the original coil described here.
This also gives you a backup starting system should your stock "Boost
coil, shower of sparks (call it what you will) system fail.
I perfected this design with help from the MSD engineering department.
This system was tested with Jan's M-14R engine, which is one of the most
powerful M-14's ever produced. The installation is simple and effective
and worked flawlessly. Ask him for details of how well it ran.
I should sell kits and make money, but I'm not into that. If you want
to know how to do it, all you has to do is ask. It does require that
the aircraft be in the "Experimental" category.
Mark
--
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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brian(at)lloyd.com
Guest
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| Posted: Thu Oct 13, 2011 4:50 pm Post subject: mag coils |
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On Thu, Oct 13, 2011 at 1:56 PM, Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E <mark.bitterlich(at)navy.mil (mark.bitterlich(at)navy.mil)> wrote:
| Quote: | --> Yak-List message posted by: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" <mark.bitterlich(at)navy.mil (mark.bitterlich(at)navy.mil)>
Let me point this out again, which by the way Jan already has a few
times already.
There is a very cheap alternative. Some folks over-seas HAVE to run
stock systems and thus these types of coils are required, regardless of
cost.
However, if you want to make your M-14 or Housai run MUCH better than it
ever has, both at idle and at full power, it is a no-brainer to install
the MSD ignition system in place of the original coil described here.
This also gives you a backup starting system should your stock "Boost
coil, shower of sparks (call it what you will) system fail.
I perfected this design with help from the MSD engineering department.
This system was tested with Jan's M-14R engine, which is one of the most
powerful M-14's ever produced. The installation is simple and effective
and worked flawlessly. Ask him for details of how well it ran.
I should sell kits and make money, but I'm not into that. If you want
to know how to do it, all you has to do is ask. It does require that
the aircraft be in the "Experimental" category.
|
This just makes SO much more sense. It is a short series of steps to smarter electronics, coil-per-plug ignition, and then on to full EFI.
--
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
brian(at)lloyd.com (brian(at)lloyd.com)
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
[quote][b]
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