Today's Message Index:
----------------------
1. 05:19 AM - Re: Com antenna ground plane (expanded) (Robert L. Nuckolls, III)
2. 05:21 AM - Re: Alternator system design goals . . . (Robert L. Nuckolls, III)
3. 06:00 AM - Re: Re: Apology (John Schroeder)
4. 06:28 AM - Vacuum switch (Gary Casey)
5. 06:50 AM - Re: Vacuum switch (Stewart, Michael (ISS Atlanta))
6. 07:29 AM - Re: Alternator system design goals . . . (Hinde, Frank George (Corvallis))
7. 07:46 AM - Re: Alternator system design goals . . . (Hinde, Frank George (Corvallis))
8. 07:55 AM - Re: Vacuum switch (Paul Schattauer)
9. 08:36 AM - trim relay deck trim speed control (Lui Esc)
10. 10:06 AM - Re: Alternator system design goals . . . (Robert L. Nuckolls, III)
11. 10:21 AM - Re: Alternator system design goals . . . (Hinde, Frank George (Corvallis))
12. 11:21 AM - Re: Re: Apology (Mark R Steitle)
13. 11:32 AM - Re: Alternator system design goals . . . (Rob Housman)
14. 01:07 PM - Re: Alternator system design goals . . . (Robert L. Nuckolls, III)
15. 01:07 PM - Re: Alternator system design goals . . . (Robert L. Nuckolls, III)
16. 01:08 PM - Re: Alternator system design goals . . . (Robert L. Nuckolls, III)
17. 01:14 PM - turbine lightoff current (alan_products)
18. 01:41 PM - Re: Alternator system design goals . . . (Rob Housman)
19. 02:59 PM - Re: turbine lightoff current (Robert L. Nuckolls, III)
20. 03:01 PM - Re: turbine lightoff current (Robert L. Nuckolls, III)
21. 04:13 PM - Electronic Circuit Breakers ? (GMC)
22. 05:08 PM - Re: Electronic Circuit Breakers ? (Robert L. Nuckolls, III)
23. 05:25 PM - Re: Re: Apology (Fiveonepw@aol.com)
24. 08:18 PM - Off to Plymouth, MA (Robert L. Nuckolls, III)
25. 08:18 PM - Re: trim relay deck trim speed control (Robert L. Nuckolls, III)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Com antenna ground plane (expanded) |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
I wrote this rather quickly late last night and I see there
are some murky points that need filtered:
> >I need some advice on my communication radio antenna installation. It
> >is a Comant antenna, and comes with a gasket that effectively insulates
> >the base of the antenna from the airplane skin. So the only
> >metal-to-metal contact between the antenna and the airplane's aluminum
> >skin will be via the four mounting machine screws. The airplane skin,
> >and the doubler where the antenna will mount, have both been epoxy
> >primed inside and out. I'm not sure that the rivets joining the doubler
> >to the underside of the skin will ensure electrical continuity between
> >them. Should I drill them out again before riveting to get rid of paint
> >in the rivet holes? I believe I need to scrape the paint off the
> >doubler where the washers on the mounting screws contact it, but is it
> >necessary to have more bare-metal-to-bare metal contact between the
> >doubler and the skin than what the rivets provide? Thanks.
>
> If it were my airplane, I'd clean the area under the screw
> heads in the antenna base casting and around the holes on the
> underside
> of the skin where the nuts will bear.
>
> Rivets swell in holes to the extent that ordinary finishes
> like paint and primer are extruded out of the contact area.
> I wouldn't worry about ground quality (due to rivets). Don't
> clean any paint or other finishes from either the underside
> of the antenna or on the surface of the fuselage. The 4 mounting
> bolts are
> sufficient.
The reason for this advice is based on other conduction
technologies we've discussed where the golden condition
is gas-tight. One simply will not achieve gas tight connection
between antenna base and aircraft skin in any areas other than
those where hardware clamp up forces bring the conductors
together with sufficient pressure to craft a high-integrity
joint. Many a perfect paint job and formerly smooth antenna
base have been literally sacrificed to craft what the assembler
was told would be a high quality joint x-years from now.
Since most of the areas we're encouraged to make bright
and clean will have some degree of corrosion on them in 10
years, it's a given that gas-tight conditions do not exist
at these points under the antenna. Therefore, it seems a
wasted effort to scrape away perfectly good paint. The
conductivity of 3-4 mounting screws properly installed will
do the job nicely.
> Pitch the rubber gasket and use a non-hardening, non-reactive
> gasket around the periphery of the antenna applied so that it
> will squish out when the antenna is mounted.
This stuff will remain in the gaps where gas tightness has
not been achieved. Good, we're depending on this filler to
keep moisture out. In areas where gas-tight has been achieved,
the filler gets extruded out. By non-reactive, I mean no
solvents that attack paint (E-6000?) or attack metals (acetic
acid RTV). Outdoor vinyl calk comes to mind as a good choice.
> Torque the mounting screws to values called out in AC43-13
> for the screw material and size. Clean up the "squish" and
> you're finished.
You might even consider drilling out holes to install larger
hardware. Most antennas mount with 10-32 screws. 14-28 cap screws
might drop into the existing recesses in the antenna base.
Further, you can get capscrews in very hard materials that
will withstand mucho tightening.
> Bob . . .
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
At 08:27 PM 8/10/2005 -0400, you wrote:
>--> AeroElectric-List message posted by: Ken <klehman@albedo.net>
>
>This one has more detail and some description of what happens when the S
>or B terminal is disconnected.
>http://www.autoshop101.com/forms/h8.pdf
>
>But this is a 20 year old (1983 vintage) alternator that he is
>describing. It's a very small sample but I've looked through a few
>service manuals and at a ND, a Delco, and a Mitsubishi and so far I
>haven't found an alternator newer than 1990 that uses what appears to be
>a voltage sense wire.
The modern day regulator chip detailed at:
http://www.freescale.com/files/analog/doc/data_sheet/MC33099.pdf
shows a remote sense lead which is optional. There
are switches in the circuitry to move between remote
and local sense automatically.
THIS ladies and gentlemen, is the kind of DATA I've been
referring to that offers us insight into operation of the
device . . . customer satisfaction (beyond meeting design
goals) and "reliability" are not parts of this study.
I'll call Tim today at B&C and ask if the current incoming
batches of ND alternators have an "S" terminal.
Bob . . .
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> AeroElectric-List message posted by: "John Schroeder" <jschroeder@perigee.net>
We have bought several items from Eric Jones and find them innovative and
fine workmanship. Had a bit of trouble with one of them and he took it
back twice to make the modification tha made it work for our application.
That's service and at no extra charge. He even designed a fresh air shut
off valve for the Lancair ES (very elegant and compact design) at our
urging and sent us the prototype for testing. I would recommend his
products to anyone for their intended use.
And he's a bit of a free spirit, too. I find that refreshing, although I
don't agree with his views all the time. And he answers the phone and
emails.
Cheers,
John Schroeder
On Thu, 11 Aug 2005 01:00:52 EDT, <Speedy11@aol.com> wrote:
> --> AeroElectric-List message posted by: Speedy11@aol.com
>
> In a message dated 8/10/2005 2:57:42 AM Eastern Standard Time,
> aeroelectric-list-digest@matronics.com writes:
> If you are considering a purchase from him please don't go
> somewhere else because of a few off-the-cuff comments I made on this
> list.
> Talk to other people who have had dealings with the man and find out what
> sort of business person he is.
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> AeroElectric-List message posted by: Gary Casey <glcasey@adelphia.net>
I'm looking for a switch for a low-vacuum warning light. Any
suggestions?
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> AeroElectric-List message posted by: "Stewart, Michael (ISS Atlanta)" <mstewart@iss.net>
I got one from Rocky Mountain Instruments.
Mike
www.rkymtn.com
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Gary
Casey
Subject: AeroElectric-List: Vacuum switch
--> AeroElectric-List message posted by: Gary Casey
<glcasey@adelphia.net>
I'm looking for a switch for a low-vacuum warning light. Any
suggestions?
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
You haven't seen some of my landings...:)
Yes my mind went the same place on not using the lamp, If I can't find a
better answer before painting the panel I might just slap one in there
anyway (my alt did not come from Van's but it looks the same). That way
I know its working as intended.
Frank
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Robert L. Nuckolls, III
Subject: RE: AeroElectric-List: Alternator system design goals . . .
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
--> <nuckollsr@cox.net>
At 04:25 PM 8/10/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: "Hinde, Frank George
(Corvallis)"
><frank.hinde@hp.com>
>
>Just a note,
>
>Van's stock 60A alternator does not show a bulb in the IGN line..But
>shows the IGN and L (lamp?) leads tied together and fed from the master
>switch.
Hmmmm. Interesting. If L is for "lamp" I hope it's current limited
inside the regulator. Pulling down on a lead that's expected to have
a lamp in series with it could be devastating to the reguator's lamp
driver . . . but perhaps it just smokes it and nobody knows or cares.
>The S lead they leave disconnected.
It would be an interesting experiment to hook this lead to
the bus through a fuse and put a switch in it. Measure voltage
at the bus with as many loads on as practical. Measure voltage
with the switch open and then closed. If it's a sense lead, the
bus voltage switch closed will be higher than with the switch
open.
>Not sure if I want a charge light or not but if I do I think using an
>LED is a better approach than a bulb...LEDs seem to last forever.
If you have active notification of low voltage, any other
lights in the charging system are redundant. Even if it were
an incandescent lamp, it will have such a low duty cycle that
one lamp is likely to last the lifetime of the airplane.
Bob . . .
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
I guess it also depends on what you mean by current.
When I bought my alt it was for a 1987 (I think) ND unit...The 55amp
(Much favoured by homebuilders) ND is a 1987 Suzuki Samuri.
Looking at the age these are definatly from "yesteryear" but they are
still "currently" available if you see what I mean.
Frank
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Robert L. Nuckolls, III
Subject: Re: AeroElectric-List: Alternator system design goals . . .
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
--> <nuckollsr@cox.net>
At 08:27 PM 8/10/2005 -0400, you wrote:
>--> AeroElectric-List message posted by: Ken <klehman@albedo.net>
>
>This one has more detail and some description of what happens when the
>S or B terminal is disconnected.
>http://www.autoshop101.com/forms/h8.pdf
>
>But this is a 20 year old (1983 vintage) alternator that he is
>describing. It's a very small sample but I've looked through a few
>service manuals and at a ND, a Delco, and a Mitsubishi and so far I
>haven't found an alternator newer than 1990 that uses what appears to
>be a voltage sense wire.
The modern day regulator chip detailed at:
http://www.freescale.com/files/analog/doc/data_sheet/MC33099.pdf
shows a remote sense lead which is optional. There
are switches in the circuitry to move between remote
and local sense automatically.
THIS ladies and gentlemen, is the kind of DATA I've been
referring to that offers us insight into operation of the
device . . . customer satisfaction (beyond meeting design
goals) and "reliability" are not parts of this study.
I'll call Tim today at B&C and ask if the current incoming
batches of ND alternators have an "S" terminal.
Bob . . .
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> AeroElectric-List message posted by: "Paul Schattauer" <chasm711@msn.com>
Gary
Mine came with my standby vacuum system from Precise Flight. I think they
sell them separately but might be pricy as they are certified.
Paul Schattauer
RV 8 808PS
>From: Gary Casey <glcasey@adelphia.net>
>Reply-To: aeroelectric-list@matronics.com
>To: aeroelectric-list@matronics.com
>Subject: AeroElectric-List: Vacuum switch
>Date: Thu, 11 Aug 2005 06:29:18 -0700
>
>--> AeroElectric-List message posted by: Gary Casey <glcasey@adelphia.net>
>
>I'm looking for a switch for a low-vacuum warning light. Any
>suggestions?
>
>
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | trim relay deck trim speed control |
--> AeroElectric-List message posted by: "Lui Esc" <f1rocketbuilder@hotmail.com>
I have the Infinity Aeropsace Trim Relay Deck, see at
http://www.infinityaerospace.com/Relay_Deck_Wiring_Schematic.jpg
I am trying to install a Ray Allen Speed control for the pitch trim but have
a few ?? on the wiring.
http://www.rayallencompany.com/RACmedia/instructionsSPD.pdf
Not sure where to connect the red wire from the Speed control to the
Infinity Relay Deck. The Relay Deck only has a
1. A port for Trim motor
2. B port for Trim motor
3. +12 v
4. Ground
It doesn't have a provision for "blue wire" like shown on Diagram 2 of the
Ray Allen schematic. I guess it is so simple that I don't see it.
Thank you,
Lui
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
At 07:28 AM 8/11/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: "Hinde, Frank George (Corvallis)"
><frank.hinde@hp.com>
>
>You haven't seen some of my landings...:)
>
>Yes my mind went the same place on not using the lamp, If I can't find a
>better answer before painting the panel I might just slap one in there
>anyway (my alt did not come from Van's but it looks the same). That way
>I know its working as intended.
The active notification of low voltage light being OUT
says the alternator is working. The alternator warning
light may not be all inclusive of alternator failures while
the external low volt warning light IS all inclusive
of alternator failure.
Bob . . .
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
True and I have a Dynon engine management system coming that I can set
auible alarms for any parameter I want....I was more worried about what
not having the light would do to the alternator and as a fall back I
could add the light even though it is redundant...Guess I could add a
resister instead though?
What value of resistor would make sense?..Should I simply measure the
resistance of a panel bulb to find out?
Frank
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Robert L. Nuckolls, III
Subject: RE: AeroElectric-List: Alternator system design goals . . .
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
--> <nuckollsr@cox.net>
At 07:28 AM 8/11/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: "Hinde, Frank George
(Corvallis)"
><frank.hinde@hp.com>
>
>You haven't seen some of my landings...:)
>
>Yes my mind went the same place on not using the lamp, If I can't find
>a better answer before painting the panel I might just slap one in
>there anyway (my alt did not come from Van's but it looks the same).
>That way I know its working as intended.
The active notification of low voltage light being OUT
says the alternator is working. The alternator warning
light may not be all inclusive of alternator failures while
the external low volt warning light IS all inclusive
of alternator failure.
Bob . . .
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> AeroElectric-List message posted by: "Mark R Steitle" <mark.steitle@austin.utexas.edu>
I would like to ditto John's comments. I have bought some items for my
Lancair ES from Perihelion Design and Eric was great to deal with and
very helpful. He answered my emails promptly. I wouldn't hesitate to
buy from him again in the future.
Mark Steitle
(No, Eric didn't pay me to say this)
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of John
Schroeder
Subject: Re: AeroElectric-List: Re: Apology
--> AeroElectric-List message posted by: "John Schroeder"
<jschroeder@perigee.net>
We have bought several items from Eric Jones and find them innovative
and
fine workmanship. Had a bit of trouble with one of them and he took it
back twice to make the modification tha made it work for our
application.
That's service and at no extra charge. He even designed a fresh air shut
off valve for the Lancair ES (very elegant and compact design) at our
urging and sent us the prototype for testing. I would recommend his
products to anyone for their intended use.
And he's a bit of a free spirit, too. I find that refreshing, although I
don't agree with his views all the time. And he answers the phone and
emails.
Cheers,
John Schroeder
On Thu, 11 Aug 2005 01:00:52 EDT, <Speedy11@aol.com> wrote:
> --> AeroElectric-List message posted by: Speedy11@aol.com
>
> In a message dated 8/10/2005 2:57:42 AM Eastern Standard Time,
> aeroelectric-list-digest@matronics.com writes:
> If you are considering a purchase from him please don't go
> somewhere else because of a few off-the-cuff comments I made on this
> list.
> Talk to other people who have had dealings with the man and find out
what
> sort of business person he is.
Message 13
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Rob Housman" <robh@hyperion-ef.us>
Bob, you usually don't make such simple errors, but if the light is out it
tells you EITHER that the alternator is working or the bulb is not.
Best regards,
Rob Housman
Europa XS Tri-Gear A070
Airframe complete
Irvine, CA
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Robert L.
Nuckolls, III
Subject: RE: AeroElectric-List: Alternator system design goals . . .
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
<nuckollsr@cox.net>
At 07:28 AM 8/11/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: "Hinde, Frank George (Corvallis)"
><frank.hinde@hp.com>
>
>You haven't seen some of my landings...:)
>
>Yes my mind went the same place on not using the lamp, If I can't find a
>better answer before painting the panel I might just slap one in there
>anyway (my alt did not come from Van's but it looks the same). That way
>I know its working as intended.
The active notification of low voltage light being OUT
says the alternator is working. The alternator warning
light may not be all inclusive of alternator failures while
the external low volt warning light IS all inclusive
of alternator failure.
Bob . . .
Message 14
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
At 11:31 AM 8/11/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: "Rob Housman" <robh@hyperion-ef.us>
>
>Bob, you usually don't make such simple errors, but if the light is out it
>tells you EITHER that the alternator is working or the bulb is not.
>
>
>Best regards,
>
>Rob Housman
Oh, sure. One assumes the bulb is good because of a pre-flight
check or some Press-to-test system. For warning lights that seldom
come on, an observation that the light is on before the alternator
is brought on line is usually sufficient. Low duty cycle warning
lights will generally last the lifetime of the airplane. Of course,
LED's are more attractive yet.
Were you making a distinction as to the operational logic of
an alternator warning light vis a vis a low voltage warning light?
The only point I was making is that LOW VOLTAGE is an absolute
indicator of inoperative alternator while there may be failure
modes within the alternator that would cripple it without lighting
the alternator failure light.
Bob . . .
Message 15
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
At 10:20 AM 8/11/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: "Hinde, Frank George (Corvallis)"
><frank.hinde@hp.com>
>
>True and I have a Dynon engine management system coming that I can set
>auible alarms for any parameter I want....I was more worried about what
>not having the light would do to the alternator and as a fall back I
>could add the light even though it is redundant...Guess I could add a
>resister instead though?
>
>What value of resistor would make sense?..Should I simply measure the
>resistance of a panel bulb to find out?
Cold resistance of a lamp is a tiny fraction of the running
resistance. A 360 ohm resistor would be quite adequate.
Bob . . .
Message 16
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
Tim at B&C thinks he has some engineering data on the
ND alternators they use as raw stock for the L-40/L60/SD-20
series alternators. He said he would share it with me if he
can find it.
Bob . . .
Message 17
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | turbine lightoff current |
--> AeroElectric-List message posted by: alan_products <alan_products@blarg.net>
Hi folks! I'll be constructing a Helicycle helicopter, a turbine-powered single
seater, after my 8A is done. The question of starter motor current draw has come
up.
Does anyone have hard data on the starter motor current draw over time to light
off a small turbine engine like a Solar T-62?
Thanks for any info!
Alan Erickson
Message 18
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Alternator system design goals . . . |
--> AeroElectric-List message posted by: "Rob Housman" <robh@hyperion-ef.us>
Nope, my response was literal, taking into account the fragility of tungsten
filaments, not a comment on the advantages or disadvantages of any
particular scheme.
Best regards,
Rob Housman
Europa XS Tri-Gear A070
Airframe complete
Irvine, CA
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Robert L.
Nuckolls, III
Subject: RE: AeroElectric-List: Alternator system design goals . . .
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
<nuckollsr@cox.net>
At 11:31 AM 8/11/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: "Rob Housman"
<robh@hyperion-ef.us>
>
>Bob, you usually don't make such simple errors, but if the light is out it
>tells you EITHER that the alternator is working or the bulb is not.
>
>
>Best regards,
>
>Rob Housman
Oh, sure. One assumes the bulb is good because of a pre-flight
check or some Press-to-test system. For warning lights that seldom
come on, an observation that the light is on before the alternator
is brought on line is usually sufficient. Low duty cycle warning
lights will generally last the lifetime of the airplane. Of course,
LED's are more attractive yet.
Were you making a distinction as to the operational logic of
an alternator warning light vis a vis a low voltage warning light?
The only point I was making is that LOW VOLTAGE is an absolute
indicator of inoperative alternator while there may be failure
modes within the alternator that would cripple it without lighting
the alternator failure light.
Bob . . .
Message 19
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: turbine lightoff current |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
At 01:13 PM 8/11/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: alan_products
><alan_products@blarg.net>
>
>Hi folks! I'll be constructing a Helicycle helicopter, a turbine-powered
>single seater, after my 8A is done. The question of starter motor current
>draw has come up.
>
>Does anyone have hard data on the starter motor current draw over time to
>light off a small turbine engine like a Solar T-62?
Does the supplier/manufacturer offer any engineering data
on installation of their products? This kind of info
should be a part of that package.
Bob . . .
Message 20
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: turbine lightoff current |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
At 01:13 PM 8/11/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: alan_products
><alan_products@blarg.net>
>
>Hi folks! I'll be constructing a Helicycle helicopter, a turbine-powered
>single seater, after my 8A is done. The question of starter motor current
>draw has come up.
>
>Does anyone have hard data on the starter motor current draw over time to
>light off a small turbine engine like a Solar T-62?
These folks sell a manual for the engine:
http://www.aerotecdata.com/library.html
Bob . . .
Message 21
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Electronic Circuit Breakers ? |
--> AeroElectric-List message posted by: GMC <gmcnutt@shaw.ca>
Bob & All
All this talk about the best alternator protection and nobody has
mentioned the new electronic circuit breakers with high/low voltage
cutout (16 & 10 volts) complete with warning light etc. Sounds like
crowbar over voltage protection in miniature. Maybe these pricey ($77)
items are the best way to protect my avionics stack! What say you, all I
know is what I see in the Aircraft Spruce catalog.
George in Langley BC
Message 22
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Electronic Circuit Breakers ? |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
At 03:59 PM 8/11/2005 -0700, you wrote:
>--> AeroElectric-List message posted by: GMC <gmcnutt@shaw.ca>
>
>
>Bob & All
>
>All this talk about the best alternator protection and nobody has
>mentioned the new electronic circuit breakers with high/low voltage
>cutout (16 & 10 volts) complete with warning light etc. Sounds like
>crowbar over voltage protection in miniature. Maybe these pricey ($77)
>items are the best way to protect my avionics stack! What say you, all I
>know is what I see in the Aircraft Spruce catalog.
I have a couple of these things to evaluate . . . but they're
pretty far back on the stove. I think they're a solid state
relay with some smarts for reacting to abnormal voltages.
I suspect they're a series switch that simply opens when
voltages get out of range.
The ones I have are fitted with miniature switches for
controls. If you used one of these for an alternator field
switch, they would protect the whole airplane . . . assuming
we're comfortable with their switching dynamics.
Bob . . .
Message 23
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> AeroElectric-List message posted by: Fiveonepw@aol.com
In a message dated 08/11/2005 12:22:49 PM Central Standard Time,
mark.steitle@austin.utexas.edu writes:
I would like to ditto John's comments.
>>>
I never bought anything from him, but my plane was pretty well "populated"
before I'd seen his product line (happy with choices made anyway)
He DID go out of his way to help me experiment long-distance to design useful
LED lights for Vans gauges, unfortunately without much success- (they are
tough to illuminate this way!) including making up some skinny little circuit
boards with SM LEDs on them (twice!) Still a confirmed Nuckollhead, but
Perihelion Design is linked on my website anyway...
Thanks again, Eric-
Mark Phillips - Columbia, TN do not archive
Message 24
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Off to Plymouth, MA |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
Dee and I are hopping the big iron bird for Boston, MA
at o-dark thirty in the morning. We're looking forward to
meeting 18 OBAM aircraft enthusiasts at the EAA Chapter 82
clubhouse this weekend.
http://aeroelectric.com/seminars/Plymouth_2005.html
If anyone has a chance to add this event to their weekend
activities, you don't need a reservation, just come on in.
Due to ticketing hassles, we won't be getting back until
late Monday night as opposed to our usual Sunday return.
I'm not even taking a computer this trip. They're too much
work. I've been doing some writing using the ol' ball-point
and a college ruled theme book. This $2.00, two-piece word processing
tool is pretty compact, and the batteries never run down.
My hand writing has improved over the past two trips, I can pretty
well read it now.
See you all next week!
Bob . . .
--------------------------------------------------------
< Throughout history, poverty is the normal condition >
< of man. Advances which permit this norm to be >
< exceeded -- here and there, now and then -- are the >
< work of an extremely small minority, frequently >
< despised, often condemned, and almost always opposed >
< by all right-thinking people. Whenever this tiny >
< minority is kept from creating, or (as sometimes >
< happens) is driven out of a society, the people >
< then slip back into abject poverty. >
< >
< This is known as "bad luck". >
< -Lazarus Long- >
<------------------------------------------------------>
http://www.aeroelectric.com
Message 25
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: trim relay deck trim speed control |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
Lui,
Sorry I didn't get to this before we had to leave. I've got it at
the top of my do-do list for our return unless someone else jumps
in to cover it.
Bob . . .
At 10:34 AM 8/11/2005 -0500, you wrote:
>--> AeroElectric-List message posted by: "Lui Esc"
><f1rocketbuilder@hotmail.com>
>
>
>I have the Infinity Aeropsace Trim Relay Deck, see at
>
>http://www.infinityaerospace.com/Relay_Deck_Wiring_Schematic.jpg
>
>I am trying to install a Ray Allen Speed control for the pitch trim but have
>a few ?? on the wiring.
>
>http://www.rayallencompany.com/RACmedia/instructionsSPD.pdf
>
>Not sure where to connect the red wire from the Speed control to the
>Infinity Relay Deck. The Relay Deck only has a
>
>1. A port for Trim motor
>2. B port for Trim motor
>3. +12 v
>4. Ground
>
>It doesn't have a provision for "blue wire" like shown on Diagram 2 of the
>Ray Allen schematic. I guess it is so simple that I don't see it.
>
>
>Thank you,
>
>Lui
>
>
>--
>
>
>-- incoming mail is certified Virus Free.
Bob . . .
--------------------------------------------------------
< Throughout history, poverty is the normal condition >
< of man. Advances which permit this norm to be >
< exceeded -- here and there, now and then -- are the >
< work of an extremely small minority, frequently >
< despised, often condemned, and almost always opposed >
< by all right-thinking people. Whenever this tiny >
< minority is kept from creating, or (as sometimes >
< happens) is driven out of a society, the people >
< then slip back into abject poverty. >
< >
< This is known as "bad luck". >
< -Lazarus Long- >
<------------------------------------------------------>
http://www.aeroelectric.com
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|