Today's Message Index:
----------------------
1. 01:15 AM - Re: B&C alternator for M14 (Yak Pilot)
2. 02:16 AM - Gone 14-31st of Jan (Doug Sapp)
3. 02:57 AM - Re: how do i unsubscibe (Frank Stelwagon)
4. 04:39 AM - Re: Gone 14-31st of Jan (A. Dennis Savarese)
5. 06:44 AM - Re: Gone 14-31st of Jan (cjpilot710@aol.com)
6. 11:02 AM - Re: B&C alternator for M14 (Brian Lloyd)
7. 12:13 PM - Re: Gone 14-31st of Jan (Don Milbourn)
8. 01:24 PM - Re: B&C alternator for M14 (Jan Mevis)
9. 02:20 PM - Re: B&C alternator for M14 (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
10. 03:33 PM - Re: B&C alternator for M14 (Brian Lloyd)
11. 03:44 PM - Looking to buy a snot valve (david stroud)
12. 03:55 PM - Re: Looking to buy a snot valve (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
13. 04:30 PM - Re: Looking to buy a snot valve (david stroud)
14. 04:35 PM - Re: Looking to buy a snot valve (A. Dennis Savarese)
15. 04:44 PM - Re: Looking to buy a snot valve (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
16. 04:52 PM - Re: B&C alternator for M14 (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
17. 05:01 PM - Air system health (CJcanuck)
18. 06:39 PM - Re: B&C alternator for M14 (Brian Lloyd)
19. 10:10 PM - Re: Gone 14-31st of Jan (David Sproule)
20. 11:37 PM - Re: B&C alternator for M14 (Jan Mevis)
21. 11:53 PM - Re: B&C alternator for M14 (Jan Mevis)
Message 1
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| Subject: | Re: B&C alternator for M14 |
Brian, Jan is telling me that the B&C Perm Mag system will not output from the
voltage regulator without a battery present. Can you figure that out? It is
news to me.
Mark
----- Original Message ----
From: Brian Lloyd <brian-1927@lloyd.com>
Sent: Tuesday, January 8, 2008 12:08:48 PM
Subject: Re: Yak-List: B&C alternator for M14
On Jan 8, 2008, at 6:11 AM, Cliff Coy wrote:
> I know this discussion is for the B&C, but I've received a lot of
> wiring questions for the Skytronics as well.
>
> Attached is the wiring digram for Skytronics showing the warning
> light installation.
>
> This is not shown in the original Skytronics wiring diagrams, but is
> found in the literature.
There is something wrong with this diagram. If that is indeed the
voltage regulator, there is no way for the regulator to properly sense
the bus voltage as there is no direct connection from the bus to the
regulator, only the warning light circuit. If they are sensing the bus
voltage through the warning light then regulation is going to suffer.
OTOH, if the device labled "voltage regulator" is just some sort of OV
protection and the real VR is inside the alternator (internally
regulated) then the internal VR could sense the bus through the 'B'
lead (output).
Regardless, the diagram does not appear correct as labeled.
Brian Lloyd 3191 Western Drive
brianl AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 2
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| Subject: | Gone 14-31st of Jan |
Hey all,
My wife gave me a fishing trip to Belize for my 60th birthday!! So I'm
saying good-bye to 20 degrees and 24 inches of snow and hello to 85
degrees, beach, Bone fish, Tarpon, Permit, scuba diving, and cold
Belikin Beer (not necessarily in that order). I will be out of the
office Jan 14 through Jan 31st. Kathleen will do her best to fill
orders while I'm away. If you need something special give me a call in
the next few days.
Always Yakin....except when I'm fishin,
Doug
Message 3
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| Subject: | Re: how do i unsubscibe |
Read the directions!
----- Original Message -----
From: Steve Wieland
To: yak-list
Sent: Tuesday, January 08, 2008 2:41 PM
Subject: Yak-List: how do i unsubscibe
Steve/Wheels
Message 4
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| Subject: | Re: Gone 14-31st of Jan |
Definitely enjoy your trip Doug.
Dennis
----- Original Message -----
From: "Doug Sapp" <rvfltd@televar.com>
Sent: Tuesday, January 08, 2008 1:18 PM
Subject: Yak-List: Gone 14-31st of Jan
>
> Hey all,
> My wife gave me a fishing trip to Belize for my 60th birthday!! So I'm
> saying good-bye to 20 degrees and 24 inches of snow and hello to 85
> degrees, beach, Bone fish, Tarpon, Permit, scuba diving, and cold
> Belikin Beer (not necessarily in that order). I will be out of the
> office Jan 14 through Jan 31st. Kathleen will do her best to fill
> orders while I'm away. If you need something special give me a call in
> the next few days.
>
> Always Yakin....except when I'm fishin,
> Doug
>
>
>
>
>
Message 5
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| Subject: | Re: Gone 14-31st of Jan |
In a message dated 1/9/2008 5:17:10 A.M. Eastern Standard Time,
rvfltd@televar.com writes:
WHAT!!!!!!!!!!!! YOU'RE LEAVING YOUR #10 WIFE AT HOME????????????
WHAT KIND OF HUSBAND ARE YOU?????????
Heheheheheheh.
Pappy
--> Yak-List message posted by: Doug Sapp <rvfltd@televar.com>
Hey all,
My wife gave me a fishing trip to Belize for my 60th birthday!! So I'm
saying good-bye to 20 degrees and 24 inches of snow and hello to 85
degrees, beach, Bone fish, Tarpon, Permit, scuba diving, and cold
Belikin Beer (not necessarily in that order). I will be out of the
office Jan 14 through Jan 31st. Kathleen will do her best to fill
orders while I'm away. If you need something special give me a call in
the next few days.
Always Yakin....except when I'm fishin,
Doug
**************Start the year off right. Easy ways to stay in shape.
http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489
Message 6
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| Subject: | Re: B&C alternator for M14 |
On Jan 9, 2008, at 12:07 AM, Yak Pilot wrote:
> Brian, Jan is telling me that the B&C Perm Mag system will not
> output from the voltage regulator without a battery present. Can
> you figure that out? It is news to me.
It is possible that it will not work without a battery present but
that would surprise me. Certainly the PM alternator (dynamo) will
produce output without any excitation as the magnet provides the
excitation. But I do not claim to be the final authority. B&C can do a
better job of representing their product than I can. I would just call
Bill Bainbridge at B&C and ask him.
Brian Lloyd 3191 Western Drive
brianl AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 7
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| Subject: | Re: Gone 14-31st of Jan |
wow you are 60
----- Original Message -----
From: "Doug Sapp" <rvfltd@televar.com>
Sent: Tuesday, January 08, 2008 12:18 PM
Subject: Yak-List: Gone 14-31st of Jan
>
> Hey all,
> My wife gave me a fishing trip to Belize for my 60th birthday!! So I'm
> saying good-bye to 20 degrees and 24 inches of snow and hello to 85
> degrees, beach, Bone fish, Tarpon, Permit, scuba diving, and cold
> Belikin Beer (not necessarily in that order). I will be out of the
> office Jan 14 through Jan 31st. Kathleen will do her best to fill
> orders while I'm away. If you need something special give me a call in
> the next few days.
>
> Always Yakin....except when I'm fishin,
> Doug
>
>
>
>
>
>
Message 8
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| Subject: | B&C alternator for M14 |
I'm not entirely certain, but the bridge rectifier has two silicon
controlled rectifiers instead of ordinary diodes. These SCR's need a current
on their gate to function. I suppose that this is the reason why this
PMR1-28 regulator needs a battery voltage on the blac and red wires. (IMHO
!!!!)
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Brian Lloyd
Sent: woensdag 9 januari 2008 18:57
Subject: Re: Yak-List: B&C alternator for M14
On Jan 9, 2008, at 12:07 AM, Yak Pilot wrote:
> Brian, Jan is telling me that the B&C Perm Mag system will not
> output from the voltage regulator without a battery present. Can
> you figure that out? It is news to me.
It is possible that it will not work without a battery present but
that would surprise me. Certainly the PM alternator (dynamo) will
produce output without any excitation as the magnet provides the
excitation. But I do not claim to be the final authority. B&C can do a
better job of representing their product than I can. I would just call
Bill Bainbridge at B&C and ask him.
Brian Lloyd 3191 Western Drive
brianl AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 9
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| Subject: | B&C alternator for M14 |
Hook the red wire to ground through a light bulb and try it again.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Wednesday, January 09, 2008 16:24
Subject: RE: Yak-List: B&C alternator for M14
I'm not entirely certain, but the bridge rectifier has two silicon
controlled rectifiers instead of ordinary diodes. These SCR's need a
current on their gate to function. I suppose that this is the reason why
this
PMR1-28 regulator needs a battery voltage on the blac and red wires.
(IMHO
!!!!)
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Brian Lloyd
Sent: woensdag 9 januari 2008 18:57
Subject: Re: Yak-List: B&C alternator for M14
On Jan 9, 2008, at 12:07 AM, Yak Pilot wrote:
> Brian, Jan is telling me that the B&C Perm Mag system will not output
> from the voltage regulator without a battery present. Can you figure
> that out? It is news to me.
It is possible that it will not work without a battery present but that
would surprise me. Certainly the PM alternator (dynamo) will produce
output without any excitation as the magnet provides the excitation. But
I do not claim to be the final authority. B&C can do a better job of
representing their product than I can. I would just call Bill Bainbridge
at B&C and ask him.
Brian Lloyd 3191 Western Drive
brianl AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 10
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| Subject: | Re: B&C alternator for M14 |
On Jan 9, 2008, at 1:23 PM, Jan Mevis wrote:
>
> I'm not entirely certain, but the bridge rectifier has two silicon
> controlled rectifiers instead of ordinary diodes. These SCR's need a
> current
> on their gate to function. I suppose that this is the reason why this
> PMR1-28 regulator needs a battery voltage on the blac and red wires.
> (IMHO
> !!!!)
It certainly could. Frankly, I would have powered the internal control
circuitry from the unregulated input from the dynamo but that's just me.
Brian Lloyd 3191 Western Drive
brianl AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 11
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| Subject: | Looking to buy a snot valve |
Anyone on the list with a snot valve for sale? If not,
can anyone recommend a reliable substitute? I'm
thinking this must be a relatively simple air/oil/water
separator that can withstand a 900 lb push. Close ?
Thanks..
David Stroud Ottawa, Canada
C-FDWS Christavia
Fairchild 51 under construction
Message 12
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| Subject: | Looking to buy a snot valve |
I am sure Doug Sapp has them.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of david stroud
Sent: Wednesday, January 09, 2008 18:45
Subject: Yak-List: Looking to buy a snot valve
Anyone on the list with a snot valve for sale? If not, can anyone
recommend a reliable substitute? I'm thinking this must be a relatively
simple air/oil/water separator that can withstand a 900 lb push. Close ?
Thanks..
David Stroud Ottawa, Canada
C-FDWS Christavia
Fairchild 51 under construction
Message 13
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| Subject: | Re: Looking to buy a snot valve |
No, he doesn't .
David Stroud Ottawa, Canada
C-FDWS Christavia
Fairchild 51 under construction
----- Original Message -----
From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" <mark.bitterlich@navy.mil>
Sent: Wednesday, January 09, 2008 6:55 PM
Subject: RE: Yak-List: Looking to buy a snot valve
>
> I am sure Doug Sapp has them.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of david stroud
> Sent: Wednesday, January 09, 2008 18:45
> To: yak-list@matronics.com
> Subject: Yak-List: Looking to buy a snot valve
>
>
> Anyone on the list with a snot valve for sale? If not, can anyone
> recommend a reliable substitute? I'm thinking this must be a relatively
> simple air/oil/water separator that can withstand a 900 lb push. Close ?
> Thanks..
>
> David Stroud Ottawa, Canada
> C-FDWS Christavia
> Fairchild 51 under construction
>
>
>
>
>
>
>
>
>
>
>
>
> --
>
>
Message 14
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| Subject: | Re: Looking to buy a snot valve |
You are correct Mark. Doug should have them. But if it's to be used on a
52, the "goes-in-ta" and "goes-out-ta" B-nut fittings on the 52 are actually
different than the B-nut fittings on the CJ. I tried adapting one to a 52
and ended up sending it back to Doug.
Dennis
----- Original Message -----
From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E"
<mark.bitterlich@navy.mil>
Sent: Wednesday, January 09, 2008 5:55 PM
Subject: RE: Yak-List: Looking to buy a snot valve
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> I am sure Doug Sapp has them.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of david stroud
> Sent: Wednesday, January 09, 2008 18:45
> To: yak-list@matronics.com
> Subject: Yak-List: Looking to buy a snot valve
>
>
> Anyone on the list with a snot valve for sale? If not, can anyone
> recommend a reliable substitute? I'm thinking this must be a relatively
> simple air/oil/water separator that can withstand a 900 lb push. Close ?
> Thanks..
>
> David Stroud Ottawa, Canada
> C-FDWS Christavia
> Fairchild 51 under construction
>
>
>
Message 15
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| Subject: | Looking to buy a snot valve |
Good to know! Thanks Dennis... I was not aware of that!
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis
Savarese
Sent: Wednesday, January 09, 2008 19:35
Subject: Re: Yak-List: Looking to buy a snot valve
--> <dsavarese@elmore.rr.com>
You are correct Mark. Doug should have them. But if it's to be used on
a 52, the "goes-in-ta" and "goes-out-ta" B-nut fittings on the 52 are
actually different than the B-nut fittings on the CJ. I tried adapting
one to a 52 and ended up sending it back to Doug.
Dennis
----- Original Message -----
From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E"
<mark.bitterlich@navy.mil>
Sent: Wednesday, January 09, 2008 5:55 PM
Subject: RE: Yak-List: Looking to buy a snot valve
Point,
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> I am sure Doug Sapp has them.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of david stroud
> Sent: Wednesday, January 09, 2008 18:45
> To: yak-list@matronics.com
> Subject: Yak-List: Looking to buy a snot valve
>
>
> Anyone on the list with a snot valve for sale? If not, can anyone
> recommend a reliable substitute? I'm thinking this must be a
relatively
> simple air/oil/water separator that can withstand a 900 lb push. Close
?
> Thanks..
>
> David Stroud Ottawa, Canada
> C-FDWS Christavia
> Fairchild 51 under construction
>
>
>
Message 16
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| Subject: | B&C alternator for M14 |
Disregard, Jan, you're right. I took the darn thing apart and checked
it myself. I also checked it using a variable AC input. It is a ...
IMHO.... A less than perfect design. If your battery goes totally
dead, and you prop the engine and get it started, you still will have no
voltage output on this darn thing. Ridiculous.
Jan, what you could do would be to build an additional circuit for this.
I know if it were my airplane, I sure as heck would. Tap off the two
blue wire, go to a double pole single throw switch. Pushbutton would be
ideal. From there run to a full wave bridge rectifier. Run that to a
medium sized cap, not huge mind you, but about 2000 uf. From there run
to a 7824 voltage regulator heatsinked for 5 amps. Connect that plus
output through about a 10 amp diode directly to the output of B&C's
voltage regulator.
If you ever lose total battery, you then pull the over-voltage breaker
thus disconnecting the B&C from the aircraft load. You prop the
aircraft, push in your new button, and that will flash start your B&C
voltage regulator as long as engine RPM is "up there". When you let go,
the really big 22,000 uf cap that they have on the output of the
regulator will act as a mini-battery and keep the thing operating until
you bring it back down to idle. Hopefully, your battery will then also
pick up some kind of charge.
More simple still.. Do the same thing, but instead of the circuit, put
in a small 24 volt nicad. Diode isolate it, and again use the same
"rest of the design and procedure" to get going again.
Lastly, and this is the best idea. TRASH that stupid circuit and build
your own.
Mark
P.s. I respect B&C for their fine products and think the world of them.
However, I personally think that any voltage regulator connected to the
output of an extremely reliable PMG alternator that REQUIRES battery
voltate in order to even operate is less than ideal. And ... Yes, I
think it is actually stupid... Even though that is much less than
polite. Their 35 and 50 amp systems are nothing like this and are much
better.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G CIV Det Cherry Point, MALS-14 64E
Sent: Wednesday, January 09, 2008 17:19
Subject: RE: Yak-List: B&C alternator for M14
--> Point, MALS-14 64E" <mark.bitterlich@navy.mil>
Hook the red wire to ground through a light bulb and try it again.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Wednesday, January 09, 2008 16:24
Subject: RE: Yak-List: B&C alternator for M14
I'm not entirely certain, but the bridge rectifier has two silicon
controlled rectifiers instead of ordinary diodes. These SCR's need a
current on their gate to function. I suppose that this is the reason why
this
PMR1-28 regulator needs a battery voltage on the blac and red wires.
(IMHO
!!!!)
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Brian Lloyd
Sent: woensdag 9 januari 2008 18:57
Subject: Re: Yak-List: B&C alternator for M14
On Jan 9, 2008, at 12:07 AM, Yak Pilot wrote:
> Brian, Jan is telling me that the B&C Perm Mag system will not output
> from the voltage regulator without a battery present. Can you figure
> that out? It is news to me.
It is possible that it will not work without a battery present but that
would surprise me. Certainly the PM alternator (dynamo) will produce
output without any excitation as the magnet provides the excitation. But
I do not claim to be the final authority. B&C can do a better job of
representing their product than I can. I would just call Bill Bainbridge
at B&C and ask him.
Brian Lloyd 3191 Western Drive
brianl AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 17
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| Subject: | Air system health |
Hi all!
I'm currently starting my first annual on my CJ. Unfortunately, the first look-see
isn't good. Upon opening my water filter I have discovered a biology experiment
at one end and oil sludge at the other (spring) end. The filter body
was heavily scored on the inside, probably from PLAAF wrench-monkey's working
on it in the past, and heavily corroded. All the felt was either oil soaked or
in poor condition and most of the screens were damaged in disassembling the
unit.
Obviously a replacement is in order, but my question to you all is; what about
the rest of the system? The oil; where should I start to look first? The compressor?
How do I clean out the rest of the system?
I'm going to remove and have the main and emergency air tanks serviced at a commercial
pneumatic repair shop (non-aviation) near here. Anything that I should
have then do or look for over the standard IRAN type check?
Any and all info would be greatly appreciated!
Mike Kirk
C-GYMK
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=157120#157120
Message 18
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| Subject: | Re: B&C alternator for M14 |
On Jan 9, 2008, at 4:52 PM, Bitterlich, Mark G CIV Det Cherry Point,
MALS-14 64E wrote:
> Lastly, and this is the best idea. TRASH that stupid circuit and
> build
> your own.
That is the right idea. As I said, use a boost/buck switching
regulator circuit.
> P.s. I respect B&C for their fine products and think the world of
> them.
> However, I personally think that any voltage regulator connected to
> the
> output of an extremely reliable PMG alternator that REQUIRES battery
> voltate in order to even operate is less than ideal. And ... Yes, I
> think it is actually stupid... Even though that is much less than
> polite. Their 35 and 50 amp systems are nothing like this and are
> much
> better.
I can actually see a possible reason for it. If your battery is off-
line, you probably want the dynamo to go off line too. OTOH, if you
have a proper regulator it should work just fine even if the battery
is off line.
--
Brian Lloyd 3191 Western Drive
brian HYPHEN 1927 AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
Antoine de Saint-Exupry
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 19
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| Subject: | Gone 14-31st of Jan |
Hi Doug,
Sorry I haven't got those part # for the aileron bolts but there are only
two that pass from the inside of the aileron, one is the actuator and the
other is the hinge on the inboard end of the aileron. They are both about
the same length. Would appreciate getting them before you leave.
Best regards,
David Sproule
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Doug Sapp
Sent: January 8, 2008 11:18 AM
Subject: Yak-List: Gone 14-31st of Jan
Hey all,
My wife gave me a fishing trip to Belize for my 60th birthday!! So I'm
saying good-bye to 20 degrees and 24 inches of snow and hello to 85
degrees, beach, Bone fish, Tarpon, Permit, scuba diving, and cold
Belikin Beer (not necessarily in that order). I will be out of the
office Jan 14 through Jan 31st. Kathleen will do her best to fill
orders while I'm away. If you need something special give me a call in
the next few days.
Always Yakin....except when I'm fishin,
Doug
Message 20
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| Subject: | B&C alternator for M14 |
Thanks for the idea! I'll work out something.
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G
CIV Det Cherry Point, MALS-14 64E
Sent: donderdag 10 januari 2008 1:52
Subject: RE: Yak-List: B&C alternator for M14
MALS-14 64E" <mark.bitterlich@navy.mil>
Disregard, Jan, you're right. I took the darn thing apart and checked
it myself. I also checked it using a variable AC input. It is a ...
IMHO.... A less than perfect design. If your battery goes totally
dead, and you prop the engine and get it started, you still will have no
voltage output on this darn thing. Ridiculous.
Jan, what you could do would be to build an additional circuit for this.
I know if it were my airplane, I sure as heck would. Tap off the two
blue wire, go to a double pole single throw switch. Pushbutton would be
ideal. From there run to a full wave bridge rectifier. Run that to a
medium sized cap, not huge mind you, but about 2000 uf. From there run
to a 7824 voltage regulator heatsinked for 5 amps. Connect that plus
output through about a 10 amp diode directly to the output of B&C's
voltage regulator.
If you ever lose total battery, you then pull the over-voltage breaker
thus disconnecting the B&C from the aircraft load. You prop the
aircraft, push in your new button, and that will flash start your B&C
voltage regulator as long as engine RPM is "up there". When you let go,
the really big 22,000 uf cap that they have on the output of the
regulator will act as a mini-battery and keep the thing operating until
you bring it back down to idle. Hopefully, your battery will then also
pick up some kind of charge.
More simple still.. Do the same thing, but instead of the circuit, put
in a small 24 volt nicad. Diode isolate it, and again use the same
"rest of the design and procedure" to get going again.
Lastly, and this is the best idea. TRASH that stupid circuit and build
your own.
Mark
P.s. I respect B&C for their fine products and think the world of them.
However, I personally think that any voltage regulator connected to the
output of an extremely reliable PMG alternator that REQUIRES battery
voltate in order to even operate is less than ideal. And ... Yes, I
think it is actually stupid... Even though that is much less than
polite. Their 35 and 50 amp systems are nothing like this and are much
better.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G CIV Det Cherry Point, MALS-14 64E
Sent: Wednesday, January 09, 2008 17:19
Subject: RE: Yak-List: B&C alternator for M14
--> Point, MALS-14 64E" <mark.bitterlich@navy.mil>
Hook the red wire to ground through a light bulb and try it again.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Wednesday, January 09, 2008 16:24
Subject: RE: Yak-List: B&C alternator for M14
I'm not entirely certain, but the bridge rectifier has two silicon
controlled rectifiers instead of ordinary diodes. These SCR's need a
current on their gate to function. I suppose that this is the reason why
this
PMR1-28 regulator needs a battery voltage on the blac and red wires.
(IMHO
!!!!)
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Brian Lloyd
Sent: woensdag 9 januari 2008 18:57
Subject: Re: Yak-List: B&C alternator for M14
On Jan 9, 2008, at 12:07 AM, Yak Pilot wrote:
> Brian, Jan is telling me that the B&C Perm Mag system will not output
> from the voltage regulator without a battery present. Can you figure
> that out? It is news to me.
It is possible that it will not work without a battery present but that
would surprise me. Certainly the PM alternator (dynamo) will produce
output without any excitation as the magnet provides the excitation. But
I do not claim to be the final authority. B&C can do a better job of
representing their product than I can. I would just call Bill Bainbridge
at B&C and ask him.
Brian Lloyd 3191 Western Drive
brianl AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Message 21
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| Subject: | B&C alternator for M14 |
Anyway, with a bad battery, I can't start my Yak 50 at all, since the air
start valve solenoid does not open (and unlike the Yak 52, I can't touch it
from the cockpit).
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G
CIV Det Cherry Point, MALS-14 64E
Sent: donderdag 10 januari 2008 1:52
Subject: RE: Yak-List: B&C alternator for M14
MALS-14 64E" <mark.bitterlich@navy.mil>
Disregard, Jan, you're right. I took the darn thing apart and checked
it myself. I also checked it using a variable AC input. It is a ...
IMHO.... A less than perfect design. If your battery goes totally
dead, and you prop the engine and get it started, you still will have no
voltage output on this darn thing. Ridiculous.
Jan, what you could do would be to build an additional circuit for this.
I know if it were my airplane, I sure as heck would. Tap off the two
blue wire, go to a double pole single throw switch. Pushbutton would be
ideal. From there run to a full wave bridge rectifier. Run that to a
medium sized cap, not huge mind you, but about 2000 uf. From there run
to a 7824 voltage regulator heatsinked for 5 amps. Connect that plus
output through about a 10 amp diode directly to the output of B&C's
voltage regulator.
If you ever lose total battery, you then pull the over-voltage breaker
thus disconnecting the B&C from the aircraft load. You prop the
aircraft, push in your new button, and that will flash start your B&C
voltage regulator as long as engine RPM is "up there". When you let go,
the really big 22,000 uf cap that they have on the output of the
regulator will act as a mini-battery and keep the thing operating until
you bring it back down to idle. Hopefully, your battery will then also
pick up some kind of charge.
More simple still.. Do the same thing, but instead of the circuit, put
in a small 24 volt nicad. Diode isolate it, and again use the same
"rest of the design and procedure" to get going again.
Lastly, and this is the best idea. TRASH that stupid circuit and build
your own.
Mark
P.s. I respect B&C for their fine products and think the world of them.
However, I personally think that any voltage regulator connected to the
output of an extremely reliable PMG alternator that REQUIRES battery
voltate in order to even operate is less than ideal. And ... Yes, I
think it is actually stupid... Even though that is much less than
polite. Their 35 and 50 amp systems are nothing like this and are much
better.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G CIV Det Cherry Point, MALS-14 64E
Sent: Wednesday, January 09, 2008 17:19
Subject: RE: Yak-List: B&C alternator for M14
--> Point, MALS-14 64E" <mark.bitterlich@navy.mil>
Hook the red wire to ground through a light bulb and try it again.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Wednesday, January 09, 2008 16:24
Subject: RE: Yak-List: B&C alternator for M14
I'm not entirely certain, but the bridge rectifier has two silicon
controlled rectifiers instead of ordinary diodes. These SCR's need a
current on their gate to function. I suppose that this is the reason why
this
PMR1-28 regulator needs a battery voltage on the blac and red wires.
(IMHO
!!!!)
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Brian Lloyd
Sent: woensdag 9 januari 2008 18:57
Subject: Re: Yak-List: B&C alternator for M14
On Jan 9, 2008, at 12:07 AM, Yak Pilot wrote:
> Brian, Jan is telling me that the B&C Perm Mag system will not output
> from the voltage regulator without a battery present. Can you figure
> that out? It is news to me.
It is possible that it will not work without a battery present but that
would surprise me. Certainly the PM alternator (dynamo) will produce
output without any excitation as the magnet provides the excitation. But
I do not claim to be the final authority. B&C can do a better job of
representing their product than I can. I would just call Bill Bainbridge
at B&C and ask him.
Brian Lloyd 3191 Western Drive
brianl AT lloyd DOT com Cameron Park, CA 95682
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
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