X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=F8MVTepN c=1 sm=1 tr=0 a=lXR3dTetu2/ryWmrkMO6vQ==:117 a=4733+plBWa/etU3uKb+Cbw==:17 a=KeKAF7QvOSUA:10 a=DAwyPP_o2Byb1YXLmDAA:9 a=Ia-xEzejAAAA:8 a=xBPpGeURAAAA:8 a=D8BjzX3rAAAA:20 a=iUR4pCalAAAA:8 a=7g1VtSJxAAAA:8 a=_6GpL_ENAAAA:8 a=Z5965YE-uPnzS5pT-tgA:9 a=isPsAAZpn0aOuoEP:21 a=mV-l8KGAoZintcFo:21 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=EuzDKR5DqH4A:10 a=gvSQh4r-fQ0A:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=3LGWCoKEIj7ciTa9YGYA:9 a=oR79APNZwzonLN5o:21 a=RbVIDidIuLF0Bw68:21 a=N-T2AcGj023mcL3z:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 a=Urk15JJjZg1Xo0ryW_k8:22 a=FF-9Yk7WBuRFA8Y4pulG:22 a=65PDPy_C76mfQZSlR0NJ:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Patrick" Received: from mout.perfora.net ([74.208.4.197] verified) by logan.com (CommuniGate Pro SMTP 6.2c3) with ESMTPS id 10003522 for flyrotary@lancaironline.net; Fri, 11 Aug 2017 11:33:04 -0400 Received-SPF: none receiver=logan.com; client-ip=74.208.4.197; envelope-from=patrick@hoffmann1.net Received: from LXUSMCH999999B ([173.161.59.81]) by mrelay.perfora.net (mreueus001 [74.208.5.2]) with ESMTPSA (Nemesis) id 0MHF2L-1dtiSU2z9X-00E30v for ; Fri, 11 Aug 2017 17:32:46 +0200 To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: Cheap strobe Date: Fri, 11 Aug 2017 10:32:44 -0500 Message-ID: <003401d312b7$149e7340$3ddb59c0$@hoffmann1.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0035_01D3128D.2BD2F290" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQIVSw0RroBwS9u9EKYMTEpz/XTZ4qH61vGQ Content-Language: en-us X-Provags-ID: V03:K0:8G/lAy+FInrgFaHYGuFoyz3N7oNbuiIMEttCuf6iOAs+L9VwGGz iOZybAGrr4Roco99ukM/SIPd7rOi/eO9guoyWgyFbiwiRH1MUBmPglRzL5kiVW2VpQJJlv+ 4d7BoHtNITNRbQza3r+5ZE2+GzXRHkettkCNutlSdkb5zcF40Y3pk8GU3ovBodg9Ow0AzM8 GMAl/ZgemNpRRj1Q2fqWQ== X-UI-Out-Filterresults: notjunk:1;V01:K0:K49tJjHTWYs=:c/WYqI6h/CejdVYLnPsiot cvT6cdoet2AhqB6yHlaVMia6pgrRJyAQdPRh5sxatJUT17DdOzPFbB4uniKQMOqaM+IhCIIlf I2up+bdWihq0N4sqcBQNKAQtiIjtZU2DH4lE/jVW9hy1swBh54aj/CYI4sU2tAg39WrBve/lq IxCANMu4UxO5/rjrbxTy19dXBbvnoPZIGI36ktqq0GogaMN/xcNpHZUGJUkK871Gqc1E+gAx2 B6tDY3m89yKvAK0jIMO5gwrLmfHk9iWI3nd59jhqZNu826MNQQeF86Y0/Ac9F+al4whDbfiTu cGbq70mpRSEkGGGrFg4NG09AJVtQXsExQWMvpPuF3SBcwFerzioO0XIb0QU2pwLEImTmjwrN7 iCCBVFccdo0gXwszj1LEQIJ/GwbpJyqG/UV5NLJ4/WcD96SyL6gZ4MJACc8oQoFknfyL9+5cv 25kHElZJ8dvmiwdx4jV02sjKwVW4WUZkceCuiCmcsJXvs56VuwW43mdhtxO8JrH8zSdUOxQUW HOIrXQqG9aarhEnvp9i/dSMSLZR/YdEGSX5pXI/akOGihyXr5KRxcrv0sjI5BlYat3LlnJKNF j2bHd9ViUlgvN7MXMBR+k3aYD6+1kW8G3l9B4rBNZY7bJJ+5UaMcrW5Sdr7p1UIPZzvHI4rgH nKPLWpC8cqVtHAHTT7kwqw/2nyD5DepOmqdwBoaVqSxZZI7mCry30hurxUBoeG3FkxoGTlr/E 6mTpfc2Qxh3AQgyAFSDM8xQ818vYxTqLhzBg6SsGHBWBSZpMSZmQoEGwKjA= This is a multipart message in MIME format. ------=_NextPart_000_0035_01D3128D.2BD2F290 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable You might want to look into a pulse width modulator. Running a = high-wattage LED at low wattage output will extend its life, but some = PWMs may introduce high frequency noise. Trade-offs=E2=80=A6 =20 Patrick =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20 Sent: Thursday, August 10, 2017 5:29 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Cheap strobe =20 Or, use less powerful LEDs, with no need to block or dim them... ;-) On 8/10/2017 4:15 PM, Ernest Christley wrote: Oops! You're right. No 5W. They were available a few years ago. =20 I see where you're going with the brightness. I was looking at the = regs, which don't point out a maximum brightness. I don't guess = regulators would have suspected that this much light would become so = easy to install. Reading the regs, it feels like they say, "This is = what you have to do, because this is what we're doing." But, now we're = to the point where we have a constant glowing marker light that is as = bright as the flash!! =20 You could be an aluminum shield in front of the markers to block some of = the light, or paint the inside of some of the housing? =20 =20 On Thursday, August 10, 2017 2:07 PM, Finn Lassen = = wrote: =20 Well, if 10W LEDs are bright enough as strobes, then I would assume that = you'd want less intensity for marker lights. I would think that strobes normally are more then three times as bright = as marker lights. Where did you see 5W LEDs? Perhaps 1W LEDs would be sufficient for marker lights, but only saw = surface mount for the 1W red LED. Finn On 8/10/2017 9:48 AM, Ernest Christley wrote: Finn, why would you dim marker lights? Is there an upper limit on how = bright the markers can be? =20 There ARE limits on what area each can cover. I handled this by = designing the mount to block light from where it isn't supposed to be. You could also use the 5W LEDs for markers. That's what I have, because = the 10W weren't there when I put the markers together. But, I'd really like to know why you want to dim them. I'm wondering if = I'm missing something. =20 =20 On Thursday, August 10, 2017 8:02 AM, Finn Lassen = = wrote: =20 Great, but the while point is cheap! Three strobes (wings and tail) plus position lights and possibly = landing/taxi lights for less than $100. If I could just figure out how to dim these LEDs for position lights. =09 [ ]=20 1 Update=20 31516 OP=20 600 Lumen 10 Watt Super Bright, Green LED=20 $3.95 =20 $3.95 =20 [ ]=20 1 Update=20 31515 OP=20 350 Lumen 10 Watt Super Bright, Red LED=20 $3.95 =20 $3.95 =20 [ ]=20 4 Update=20 31539 PS=20 LED Driver, 30W DC Output, 110-260VAC Input=20 $8.95 =20 $35.80 =20 [ ]=20 8 Update=20 31325 OP=20 1000 Lumen 10 Watt Super Bright, Cool White LED Module=20 $2.95 =20 $23.60 =20 [ ]=20 1 Update=20 31557 PS=20 LED Driver, 10W Output, 12-24VAC/DC Input=20 $3.95 =20 $3.95 =20 Finn On 8/9/2017 6:21 PM, Rogers, Bob J. wrote: I use these in my plane. They work great. Spruce part number is = 11-14934 ... = http://www.aircraftspruce.com/catalog/elpages/navstrobesextant40.php=20 =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20 Sent: Wednesday, August 09, 2017 3:36 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Cheap strobe =20 Not to burst your bubble Ernest but for those less likely to put = something like that together ... when at Oshkosh this year, I went to = Aircraft Spruce booth and a guy there was selling his own design of = Nav/Srobe bulbs: a set includes one Red, Green White. All you do is = remove the existing Grimes bulbs and replace the coloured Red/Green = lenses with clear ones and insert his custom LED bulbs. No power supply = required; no extra wiring required =E2=80=93 use the existing circuit at = much less current ~1.2A Vs 6-8A for a standard set. They aren=E2=80=99t = cheap: $318 normal price but I was very impressed and bought them at the = show special of $286. When you first turn them ON they are normal NAV = lights; turn them OFF for 1-2 seconds then back ON and they begin to = strobe. Spruce part number is 11-14934 ... = http://www.aircraftspruce.com/catalog/elpages/navstrobesextant40.php =20 Jeff Whaley Chubby Cubby, C-FJWW, 13B =20 From: Ernest Christley [mailto:flyrotary@lancaironline.net]=20 Sent: August-06-17 5:54 PM Subject: Re: [FlyRotary] Re: Cheap strobe =20 Too much typing. Try the youtube video I made. Linked below. = Everything is put together with A3 pulled rivets. =20 LED Beacon Light = =20 =20 =20 =09 =09 =20 =09 LED Beacon Light =09 =20 =20 On Saturday, August 5, 2017 7:06 PM, Finn Lassen = > = wrote: =20 31325 OP and 31559 PS? Pictures please. Having a hard time visualizing three LEDs creating a = 180 degree dome mounting them in a triangle. Is it possible to dim them to use for landing lights? Finn On 8/4/2017 11:04 PM, Ernest Christley wrote: For nearly 15 years, this list has been invaluable to me, and it has = been very seldom that I've been able to give anything back. But, I hope = this helps. =20 mpja.com has 10W LEDs for $2.95 each. Each strobe takes three of them. = You also need the 30W power supply for each strobe. Another $8.95. = I've put a scope on the input and output. It doesn't generate much in = the way of noise. Just a constant current. =20 There is a seller on Ebay selling "Grimes wingtip light". You can get = two for $16 or one for $6. =20 In America, any of the chain auto parts stores carries the EP36 flasher = from Novita. Takes one for more strobes than you'll want to run. =20 Battery -> Strobe switch -> EP36 -> Input to each of the power supplies = -> three LEDs in series -> back to power supply -> back to EP36 -> = ground =20 Once set up, connect to a battery, but do not look directly at this = beast. =20 For my first pass, I cut a strip of aluminum, 1"x3.5". Folded into a = triangle with 1" sides. Rivet an LED to each side. =20 To fit it in the wingtip light, I'm cutting a piece of aluminum sheet to = replace the bulb and rivet to the housing. Where the light was, I'm = cutting the aluminum and letting it fold up from the center to form = three mounting faces where I'll rivet the LEDs. =20 =20 This message, and the documents attached hereto, is intended only for = the addressee and may contain privileged or confidential information. = Any unauthorized disclosure is strictly prohibited. If you have received = this message in error, please notify us immediately so that we may = correct our internal records. Please then delete the original message. = Thank you.=20 =20 =20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html =20 =20 =20 =20 = =20 Virus-free. = = www.avast.com=20 =20 ------=_NextPart_000_0035_01D3128D.2BD2F290 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

You might want to look into a pulse width modulator.=C2=A0 Running a = high-wattage LED at low wattage output will extend its life, but some = PWMs may introduce high frequency noise.=C2=A0 = Trade-offs=E2=80=A6

 

Patrick

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] =
Sent: Thursday, August 10, 2017 5:29 PM
To: Rotary = motors in aircraft = <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: = Cheap strobe

 

Or, use = less powerful LEDs, with no need to block or dim = them...

;-)

On 8/10/2017 4:15 PM, Ernest Christley = wrote:

Oops! = You're right.  No 5W.  They were available a few years = ago.

 =

I see = where you're going with the brightness.  I was looking at the regs, = which don't point out a maximum brightness.  I don't guess = regulators would have suspected that this much light would become so = easy to install.  Reading the regs, it feels like they say, = "This is what you have to do, because this is what we're = doing."  But, now we're to the point where we have a constant = glowing marker light that is as bright as the = flash!!

 =

You could = be an aluminum shield in front of the markers to block some of the = light, or paint the inside of some of the = housing?

 =

 =

On Thursday, = August 10, 2017 2:07 PM, Finn Lassen <flyrotary@lancaironline.n= et> wrote:

=

 

=

Well, if 10W LEDs are = bright enough as strobes, then I would assume that you'd want less = intensity for marker lights.
I would think that strobes normally are = more then three times as bright as marker lights.

Where did you = see 5W LEDs?

Perhaps 1W LEDs would be sufficient for marker = lights, but only saw surface mount for the 1W red = LED.

Finn

On 8/10/2017 9:48 AM, Ernest Christley = wrote:

Finn, why = would you dim marker lights?  Is there an upper limit on how bright = the markers can be?  

There ARE = limits on what area each can cover.  I handled this by designing = the mount to block light from where it isn't supposed to = be.

You could = also use the 5W LEDs for markers.  That's what I have, because the = 10W weren't there when I put the markers = together.

But, I'd = really like to know why you want to dim them.  I'm wondering if I'm = missing something.

 =

 =

On Thursday, = August 10, 2017 8:02 AM, Finn Lassen <flyrotary@lancaironline.net> = wrote:

=

 

=

Great, but the while point = is cheap!

Three strobes (wings and tail) plus position = lights and possibly landing/taxi lights for less than $100.

If I = could just figure out how to dim these LEDs for position = lights.

[ ]

1
Update

   31516 OP

600 = Lumen 10 Watt Super Bright, Green LED

$3.95 =  

$3.95   =

[ ]

1
Update

   31515 OP

350 = Lumen 10 Watt Super Bright, Red LED

$3.95 =  

$3.95   =

[ ]

4
Update

   31539 PS

LED = Driver, 30W DC Output, 110-260VAC Input

$8.95 =  

$35.80   =

[ ]

8
Update

   31325 OP

1000 = Lumen 10 Watt Super Bright, Cool White LED Module =

$2.95 =  

$23.60   =

[ ]

1
Update

   31557 PS

LED = Driver, 10W Output, 12-24VAC/DC Input

$3.95 =  

$3.95  



Finn

On = 8/9/2017 6:21 PM, Rogers, Bob J. = wrote:

I use = these in my plane. They work great.  Spruce part number is 11-14934 = ...  http://www.aircraftspruce.com/catalog/elpages/navstrobe= sextant40.php

=

 

=

From: Rotary = motors in aircraft [mailto:flyrotary@lancaironline.net] =
Sent: Wednesday, August 09, 2017 3:36 PM
To: Rotary = motors in aircraft
Subject: [FlyRotary] Re: Cheap = strobe

=

 

=

Not to burst your bubble Ernest but for those less likely to put = something like that together ... when at Oshkosh this year, I went to = Aircraft Spruce booth and a guy there was selling his own design of = Nav/Srobe bulbs: a set includes one Red, Green White. All you do is = remove the existing Grimes bulbs and replace the coloured Red/Green = lenses with clear ones and insert his custom LED bulbs. No power supply = required; no extra wiring required =E2=80=93 use the existing circuit at = much less current ~1.2A Vs 6-8A for a standard set.  They = aren=E2=80=99t cheap: $318 normal price but I was very impressed and = bought them at the show special of $286.  When you first turn them = ON they are normal NAV lights; turn them OFF for 1-2 seconds then back = ON and they begin to strobe.  Spruce part number is 11-14934 ... =  http://www.aircraftspruce.com/catalog/elpages/navstrobe= sextant40.php

=

 

=

Jeff Whaley

=

Chubby Cubby, C-FJWW, 13B

=

 

=

From: Ernest = Christley [mailto:flyrotary@lancaironline.net] =
Sent: August-06-17 5:54 PM
Subject: Re: [FlyRotary] = Re: Cheap strobe

=

 

=

Too much = typing.  Try the youtube video I made.  Linked below.  = Everything is put together with A3 pulled rivets.

=

 

=

 

=

 

=

 

LED Beacon = Light

 

=

 

=

On = Saturday, August 5, 2017 7:06 PM, Finn Lassen <flyrotary@lancaironline.net> wrote:

=

 

=

31325 OP and 31559 = PS?

Pictures please. Having a hard time visualizing three LEDs = creating a 180 degree dome mounting them in a triangle.

Is it = possible to dim them to use for landing lights?

Finn

On = 8/4/2017 11:04 PM, Ernest Christley = wrote:

For nearly 15 years, this list has been = invaluable to me, and it has been very seldom that I've been able to = give anything back.  But, I hope this = helps.

 

mpja.com has 10W LEDs for $2.95 each.  = Each strobe takes three of them.  You also need the 30W power = supply for each strobe.  Another $8.95.  I've put a scope on = the input and output.  It doesn't generate much in the way of = noise.  Just a constant = current.

 

There is a seller on Ebay selling = "Grimes wingtip light".  You can get two for $16 or one = for $6.

 

In America, any of the chain auto parts = stores carries the EP36 flasher from Novita.  Takes one for more = strobes than you'll want to run.

 

<= div>

Battery -> Strobe switch -> EP36 -> = Input to each of the power supplies -> three LEDs in series -> = back to power supply -> back to EP36 -> = ground

 

Once set up, connect to a battery, but do not = look directly at this beast.

 

For my first pass, I cut a strip of aluminum, = 1"x3.5".  Folded into a triangle with 1" = sides.  Rivet an LED to each = side.

 

To fit it in the wingtip light, I'm cutting a = piece of aluminum sheet to replace the bulb and rivet to the = housing.  Where the light was, I'm cutting the aluminum and letting = it fold up from the center to form three mounting faces where I'll rivet = the = LEDs.

 

 

=

This message, and the = documents attached hereto, is intended only for the addressee and may = contain privileged or confidential information. Any unauthorized = disclosure is strictly prohibited. If you have received this message in = error, please notify us immediately so that we may correct our internal = records. Please then delete the original message. Thank you. =

=

 

=

 

= 



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