|
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.net> 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.
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.
|
|
Update
|
31516
OP |
|
600 Lumen 10 Watt Super
Bright, Green LED |
$3.95 |
$3.95
|
|
|
|
|
Update
|
31515
OP |
|
350 Lumen 10 Watt Super
Bright, Red LED |
$3.95 |
$3.95
|
|
|
|
|
Update
|
31539
PS |
|
LED Driver, 30W DC Output,
110-260VAC Input |
$8.95 |
$35.80
|
|
|
|
|
Update
|
31325
OP |
|
1000 Lumen 10 Watt Super
Bright, Cool White LED Module |
$2.95 |
$23.60
|
|
|
|
|
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:
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 –
use the existing circuit at much less
current ~1.2A Vs 6-8A for a standard set.
They aren’t 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
Jeff Whaley
Chubby Cubby, C-FJWW, 13B
Too much typing. Try the
youtube video I made. Linked below.
Everything is put together with A3
pulled rivets.
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.
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.
--
Homepage: http://www.flyrotary.com/
Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
|
|