Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

HID Lights

Matronics Email Lists Forum Index -> RV10-List

View previous topic :: View next topic

Author Message

rv10builder(at)verizon.ne
Guest

Posted: Thu Sep 02, 2010 11:41 am Post subject: HID Lights

There was a Tom who did this. Hopefully the pictures will come through.

 He had his light right inside the inlet on the cowls.

--------------------------------------------------

From: "Sean Stephens" <sean(at)stephensville.com>

Sent: Wednesday, September 01, 2010 1:22 PM

To: "RV 10 list" <rv10-list(at)matronics.com>

Subject: Taxi Light



 	  Quote: 	
		   

 

  Has anyone put a taxi light in their cowl, or are most just aiming one 

 of two landing lights for taxi?

 

 Sean #40303 fuse side skins

new_light.jpg

Description:

Filesize:

52.08 KB

Viewed:

12568 Time(s)

Old_Light.jpg

Description:

Filesize:

59.45 KB

Viewed:

12568 Time(s)

jdriggs49(at)msn.com
Guest

Posted: Thu Sep 02, 2010 12:22 pm Post subject: HID Lights

Not too many are putting the light in the cowl because with the engine running you get a LOT of reflection off the back of the prop. At any kind of engine revolutions the prop disc becomes rather solid and reflects back most of the light trying to shine through it.

[quote] From: rv10builder(at)verizon.net

 To: rv10-list(at)matronics.com

 Subject: RV10-List: Fw: HID Lights

 Date: Thu, 2 Sep 2010 12:35:25 -0700

 There was a Tom who did this. Hopefully the pictures will come through.

  He had his light right inside the inlet on the cowls.

 --------------------------------------------------

 From: "Sean Stephens" <sean(at)stephensville.com>

 Sent: Wednesday, September 01, 2010 1:22 PM

 To: "RV 10 list" <rv10-list(at)matronics.com>

 Subject: RV10-List: Taxi Light

 > --> RV10-List message posted by: Sean Stephens <sean(at)stephensville.com>

 > 

 >  Has anyone put a taxi light in their cowl, or are most just aiming one 

 > of two landing lights for taxi?

 > 

 > Sean #40303 fuse side skins

 		 	   		     	  Quote: 	
		  [b]

sean(at)stephensville.com
Guest

Posted: Thu Sep 02, 2010 12:40 pm Post subject: HID Lights

That's kind of what I was worried about.  So, one of the two leading 

edge duckworks aimed for landing and the other aimed for taxi.  During 

landing, both on, during taxi, only taxi aimed one on.  That will be 

easy to setup in the VP-200 menus. 

-Sean #40303

On 9/2/10 3:20 PM, Danny Riggs wrote:

 	  Quote: 	
		   Not too many are putting the light in the cowl because with the engine 

 running you get a LOT of reflection off the back of the prop. At any 

 kind of engine revolutions the prop disc becomes rather solid and 

 reflects back most of the light trying to shine through it.

 > From: rv10builder(at)verizon.net

 > To: rv10-list(at)matronics.com

 > Subject: Fw: HID Lights

 > Date: Thu, 2 Sep 2010 12:35:25 -0700

 >

 > There was a Tom who did this. Hopefully the pictures will come through.

 > He had his light right inside the inlet on the cowls.

 >

 >

 > --------------------------------------------------

 > From: "Sean Stephens" <sean(at)stephensville.com>

 > Sent: Wednesday, September 01, 2010 1:22 PM

 > To: "RV 10 list" <rv10-list(at)matronics.com>

 > Subject: Taxi Light

 >

 > > 

 <sean(at)stephensville.com>

 > >

 > > Has anyone put a taxi light in their cowl, or are most just aiming 

 one

 > > of two landing lights for taxi?

 > >

 > > Sean #40303 fuse side skins

 >

 *

 *

wwc4(at)njit.edu
Guest

Posted: Thu Sep 02, 2010 12:54 pm Post subject: HID Lights

Cirrus use to mount their lights in the cowl inlets but since they were unable to cushion them effectively, the failed prematurely.  Cirrus has subsequently moved the single main landing light to the forward base of the cowl.  I'll be mounting my lights in the cowl just like they are on my Cardinal RG.  One oriented for landing, the other oriented for taxi.

   

 On Van's Airforce forum, there was a picture of an RV-10 fro Brazil with dual cowl mounted lights.  



-- 

William

N40237 - http://wcurtis.nerv10.com/



   

 On Thu, Sep 2, 2010 at 3:35 PM, Pascal <rv10builder(at)verizon.net (rv10builder(at)verizon.net)> wrote:

 [quote]There was a Tom who did this. Hopefully the pictures will come through.

He had his light right inside the inlet on the cowls.

 



--------------------------------------------------

From: "Sean Stephens" <sean(at)stephensville.com (sean(at)stephensville.com)>

Sent: Wednesday, September 01, 2010 1:22 PM

 To: "RV 10 list" <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>

Subject: Taxi Light



  	  Quote: 	
		  --> RV10-List message posted by: Sean Stephens <sean(at)stephensville.com (sean(at)stephensville.com)>

 

 Has anyone put a taxi light in their cowl, or are most just aiming one of two landing lights for taxi?



Sean #40303 fuse side skins

	
[b]

wwc4(at)njit.edu
Guest

Posted: Thu Sep 02, 2010 1:03 pm Post subject: HID Lights

Are you stating this from experience or ... truthiness?

 This is definately not my experience with the dual cowl mounted lights on my Cardinal RG.  As mentioned in my other post, Cirrus also mounts a single HID light in the cowl.

William

N40237 - http://wcurtis.nerv10.com/

 On Thu, Sep 2, 2010 at 4:20 PM, Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)> wrote:

 [quote] Not too many are putting the light in the cowl because with the engine running you get a LOT of reflection off the back of the prop. At any kind of engine revolutions the prop disc becomes rather solid and reflects back most of the light trying to shine through it.

 	  Quote: 	
		   From: rv10builder(at)verizon.net (rv10builder(at)verizon.net)

 To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)

 Subject: RV10-List: Fw: HID Lights

 > Date: Thu, 2 Sep 2010 12:35:25 -0700   

 	  Quote: 	

 There was a Tom who did this. Hopefully the pictures will come through.

 He had his light right inside the inlet on the cowls.

 --------------------------------------------------

 > From: "Sean Stephens" <sean(at)stephensville.com (sean(at)stephensville.com)>

 	  Quote: 	
		   Sent: Wednesday, September 01, 2010 1:22 PM

 To: "RV 10 list" <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>

 > Subject: Taxi Light

 	  Quote: 	

 > --> RV10-List message posted by: Sean Stephens <sean(at)stephensville.com (sean(at)stephensville.com)>

 > 

 > Has anyone put a taxi light in their cowl, or are most just aiming one 

 > > of two landing lights for taxi?

 	  Quote: 	
		   > 

 > Sean #40303 fuse side skins

[b]

Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Thu Sep 02, 2010 1:12 pm Post subject: HID Lights

Why put anything in the way of cooling air?



Tim Olson - RV-10 N104CD

do not archive

On 9/2/2010 2:35 PM, Pascal wrote:

 	  Quote: 	
		   There was a Tom who did this. Hopefully the pictures will come through.

 He had his light right inside the inlet on the cowls.

 --------------------------------------------------

 From: "Sean Stephens" <sean(at)stephensville.com>

 Sent: Wednesday, September 01, 2010 1:22 PM

 To: "RV 10 list" <rv10-list(at)matronics.com>

 Subject: Taxi Light



> 

>

> Has anyone put a taxi light in their cowl, or are most just aiming one

> of two landing lights for taxi?

>

> Sean #40303 fuse side skins

jdriggs49(at)msn.com
Guest

Posted: Thu Sep 02, 2010 1:46 pm Post subject: HID Lights

Experience.

Date: Thu, 2 Sep 2010 17:03:07 -0400

Subject: Re: Fw: HID Lights

From: wwc4(at)njit.edu

To: rv10-list(at)matronics.com

Are you stating this from experience or ... truthiness?

 This is definately not my experience with the dual cowl mounted lights on my Cardinal RG.  As mentioned in my other post, Cirrus also mounts a single HID light in the cowl.

William

N40237 - http://wcurtis.nerv10.com/

 On Thu, Sep 2, 2010 at 4:20 PM, Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)> wrote:

 [quote] Not too many are putting the light in the cowl because with the engine running you get a LOT of reflection off the back of the prop. At any kind of engine revolutions the prop disc becomes rather solid and reflects back most of the light trying to shine through it.

 	  Quote: 	
		   From: rv10builder(at)verizon.net (rv10builder(at)verizon.net)

 To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)

 Subject: Fw: HID Lights

 > Date: Thu, 2 Sep 2010 12:35:25 -0700   

 	  Quote: 	

 There was a Tom who did this. Hopefully the pictures will come through.

 He had his light right inside the inlet on the cowls.

 --------------------------------------------------

 > From: "Sean Stephens" <sean(at)stephensville.com (sean(at)stephensville.com)>

 	  Quote: 	
		   Sent: Wednesday, September 01, 2010 1:22 PM

 To: "RV 10 list" <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>

 > Subject: Taxi Light

 	  Quote: 	

 > --> RV10-List message posted by: Sean Stephens <sean(at)stephensville.com (sean(at)stephensville.com)>

 > 

 > Has anyone put a taxi light in their cowl, or are most just aiming one 

 > > of two landing lights for taxi?

 	  Quote: 	
		   > 

 > Sean #40303 fuse side skins

http://www.mathref="http://forums.matronics.com" target="_blank">http://forums.matron=====[b]

wwc4(at)njit.edu
Guest

Posted: Thu Sep 02, 2010 2:23 pm Post subject: HID Lights

Danny,

  

  

Can you share some details on this? Type of light, etc?  Aircraft type?  Was this on an RV? 

  

Unless the cowl mounted light was cycling at the same frequency as the propeller rotation, and the back of the prop was painted white, I can’t imagine how the light would be reflected back toward the pilot.    

  

As previously stated many certified propeller aircraft have cowl mounted lights.  If your experience was borne out, I think those manufacturers would have altered that approach. 

-- 

William

N40237 - http://wcurtis.nerv10.com/



  

 On Thu, Sep 2, 2010 at 5:45 PM, Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)> wrote:

  	  Quote: 	
		   Experience.



  Date: Thu, 2 Sep 2010 17:03:07 -0400

Subject: Re: Fw: HID Lights

From: wwc4(at)njit.edu (wwc4(at)njit.edu)

To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)

 

 Are you stating this from experience or ... truthiness?

  

 This is definately not my experience with the dual cowl mounted lights on my Cardinal RG.  As mentioned in my other post, Cirrus also mounts a single HID light in the cowl.



William

N40237 - http://wcurtis.nerv10.com/

 

  

 On Thu, Sep 2, 2010 at 4:20 PM, Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)> wrote:

  	  Quote: 	
		   Not too many are putting the light in the cowl because with the engine running you get a LOT of reflection off the back of the prop. At any kind of engine revolutions the prop disc becomes rather solid and reflects back most of the light trying to shine through it.

 

	




	




  [quote][b]

dlm46007(at)cox.net
Guest

Posted: Thu Sep 02, 2010 2:29 pm Post subject: HID Lights

The halogens get very hot but HID do not.

---

Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Thu Sep 02, 2010 2:30 pm Post subject: HID Lights

I think the difference is that the lights pictured are in the cowl 

inlets at the top of the cowl, where all certified aircraft lighting in 

the cowl is near the bottom of the cowl. You only need to look at the 

projector based product that was displaying a heads up EFIS on the back 

of the prop to see how reflective it can be.

Kelly

On 9/2/2010 3:22 PM, William Curtis wrote:

 	  Quote: 	
		   Danny,



 Can you share some details on this? Type of light, etc?  Aircraft 

 type?  Was this on an RV?



 Unless the cowl mounted light was cycling at the same frequency as the 

 propeller rotation, and the back of the prop was painted white, I 

 can’t imagine how the light would be reflected back toward the pilot.



 As previously stated many certified propeller aircraft have cowl 

 mounted lights. If your experience was borne out, I think those 

 manufacturers would have altered that approach.

 -- 

 William

 N40237 - http://wcurtis.nerv10.com/

 On Thu, Sep 2, 2010 at 5:45 PM, Danny Riggs <jdriggs49(at)msn.com 

 <mailto:jdriggs49(at)msn.com>> wrote:



     Experience.



     ------------------------------------------------------------------------

     Date: Thu, 2 Sep 2010 17:03:07 -0400

     Subject: Re: Fw: HID Lights

     From: wwc4(at)njit.edu <mailto:wwc4(at)njit.edu>

     To: rv10-list(at)matronics.com <mailto:rv10-list(at)matronics.com>



     Are you stating this from experience or ... truthiness?

     This is definately not my experience with the dual cowl mounted

     lights on my Cardinal RG.  As mentioned in my other post, Cirrus

     also mounts a single HID light in the cowl.



     William

     N40237 - http://wcurtis.nerv10.com/

     On Thu, Sep 2, 2010 at 4:20 PM, Danny Riggs <jdriggs49(at)msn.com

     <mailto:jdriggs49(at)msn.com>> wrote:



         Not too many are putting the light in the cowl because with

         the engine running you get a LOT of reflection off the back of

         the prop. At any kind of engine revolutions the prop disc

         becomes rather solid and reflects back most of the light

         trying to shine through it.



 *

 *

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Thu Sep 02, 2010 2:44 pm Post subject: HID Lights

That's not my point.  Like James cowl users found, something as simple as a deflector in front of an injector causing various air pressure and flow changes....in that case a positive one.

So why stick a big lightbulb right in the path of airflow coming into the cowl and plenum when we spend time trying to make air ramps and smooth flow transitions.  Seems pointless to me when there are plenty of superior lighting positions to choose from. Why in a cowl inlet?

Tim



On Sep 2, 2010, at 5:26 PM, "DLM" <dlm46007(at)cox.net> wrote:



[quote] 

 

 The halogens get very hot but HID do not.

 ---

Strasnuts

Joined: 10 Feb 2009
Posts: 502
Location: Salt Lake City, UT

Posted: Thu Sep 02, 2010 3:31 pm Post subject: Re: HID Lights

Geez Tim, I already fitted one light on my cowl. I bet you are REALLY going to hate it.

Cowl.JPG

Description:

Filesize:

27.42 KB

Viewed:

12548 Time(s)

_________________
40936
RV-10 SB N801VR Flying
780 Hours
SuperSTOL 60 hours

Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Thu Sep 02, 2010 4:38 pm Post subject: HID Lights

HA! Hey, but you can say you spent less than anyone else

on your lights. 



Tim Olson - RV-10 N104CD

do not archive

On 9/2/2010 6:31 PM, Strasnuts wrote:

 	  Quote: 	
		   



 Geez Tim,  I already fitted one light on my cowl.  I bet you are REALLY going to hate it.



 --------

 Cust. #40936

 RV-10 SB Fuselage

 N801VR reserved

 Attachments:



 http://forums.matronics.com//files/cowl_121.jpg

Lenny Iszak

Joined: 23 Mar 2008
Posts: 270

Posted: Thu Sep 02, 2010 5:01 pm Post subject: Re: HID Lights

Sean, mind if i steal your idea? This should fix my James cowl injector problems with those positive air pressures. 



Lenny

Strasnuts

Joined: 10 Feb 2009
Posts: 502
Location: Salt Lake City, UT

Posted: Thu Sep 02, 2010 5:05 pm Post subject: HID Lights

Maybe I'll sell a kit for it on PlaneAround.com!



Sent from my iPhone



On Sep 2, 2010, at 19:01, "Lenny Iszak" <lenard(at)rapiddecision.com> wrote:



 	  Quote: 	
		   

 

 Sean, mind if i steal your idea? This should fix my James cowl injector problems with those positive air pressures. 

 

 Lenny

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=311174#311174

_________________
40936
RV-10 SB N801VR Flying
780 Hours
SuperSTOL 60 hours

larkrv10(at)yahoo.ca
Guest

Posted: Thu Sep 02, 2010 7:19 pm Post subject: HID Lights

I think Kelly (and William) hit it bang on.  The Cessna Cardinals have the lights down low in the cowl, so there is no reflection back into the cockpit from the prop.  Certainly I have never seen any in mine.

 Thx for the opinions.  I will be ordering the Duckworth's 35W D1S HID with the Phillips bulb.

  

 Another question then begs an answer.  Why the left wing for the landing light as opposed to the right?

  

 Regards,  Rick

 #40956

 Southampton, Ont

  

 

--- On Thu, 9/2/10, Kelly McMullen <kellym(at)aviating.com> wrote:



  	  Quote: 	
		  

From: Kelly McMullen <kellym(at)aviating.com>

Subject: Re: Fw: HID Lights

To: rv10-list(at)matronics.com

Received: Thursday, September 2, 2010, 10:28 PM



 --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>



I think the difference is that the lights pictured are in the cowl inlets at the top of the cowl, where all certified aircraft lighting in the cowl is near the bottom of the cowl. You only need to look at the projector based product that was displaying a heads up EFIS on the back of the prop to see how reflective it can be.

Kelly

On 9/2/2010 3:22 PM, William Curtis wrote:

 	  Quote: 	
		   Danny,

 

 Can you share some details on this? Type of light, etc?  Aircraft type?  Was this on an RV?

 

 Unless the cowl mounted light was cycling at the same frequency as the propeller rotation, and the back of the prop was painted white, I canâ€™t imagine how the light would be reflected back toward the  pilot.

 

 As previously stated many certified propeller aircraft have cowl mounted lights. If your experience was borne out, I think those manufacturers would have altered that approach.

 

 

 -- William

 N40237 - http://wcurtis.nerv10.com/

 On Thu, Sep 2, 2010 at 5:45 PM, Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com) <mailto:jdriggs49(at)msn.com (jdriggs49(at)msn.com)>> wrote:

 

     Experience.

 

     ------------------------------------------------------------------------

     Date: Thu, 2 Sep 2010 17:03:07 -0400

     Subject: Re:  Fw: HID Lights

     From: wwc4(at)njit.edu (wwc4(at)njit.edu) <mailto:wwc4(at)njit.edu (wwc4(at)njit.edu)>

     To: rv10-list(at)matronics.com (rv10-list(at)matronics.com) <mailto:rv10-list(at)matronics.com (rv10-list(at)matronics.com)>

 

     Are you stating this from experience or ... truthiness?

     This is definately not my experience with the dual cowl mounted

     lights on my Cardinal RG.  As mentioned in my other post,  Cirrus

     also mounts a single HID light in the cowl.

 

     William

     N40237 - http://wcurtis.nerv10.com/

     On Thu, Sep 2, 2010 at 4:20 PM, Danny Riggs <jdriggs49(at)msn.com (jdriggs49(at)msn.com)

     <mailto:jdriggs49(at)msn.com (jdriggs49(at)msn.com)>> wrote:

 

         Not too many are putting the light in the cowl because with

         the engine running you get a LOT of reflection off the back of

         the prop. At any kind of engine  revolutions the prop disc

         becomes rather solid and reflects back most of the light

         trying to shine through it.

 

 

ww.matronics.com/Navigator?RV10-List" target=_blank>http://www.matronics.========================h=                      --> 
	




	


 [quote][b]

rv10flyer

Joined: 25 Aug 2009
Posts: 364

Posted: Fri Sep 03, 2010 4:25 am Post subject: Re: HID Lights

DW HID in both wing most outboard bays look like they will work great. I had thought about lower cowl or wheelpants, but decided to cut holes in my wing. I was worried about compromising wing strength, but since it is in that bay and many have test flown before I am fine with them now. I installed them just before installing outboard leading edges. Much easier on the bench. Things that turned me away from cowl were vibration/heat. Then wheel pants was that some have already had problems with extensions breaking and I did not want to add more weight to my pants due to lights and increasing fg strength. I will have enough fiberglass when the doors/top cover come along. Emp fg already complete. Back to the flaps now.

_________________
Wayne G.

eagerlee

Joined: 28 Jan 2006
Posts: 35

Posted: Sun Sep 05, 2010 3:56 pm Post subject: Re: HID Lights

hasn't anyone come up with a drop in replacement for the GE4509 that uses LED's and costs less than a hundred bucks?

jrlark

Joined: 03 Jul 2009
Posts: 72

Posted: Sun Sep 05, 2010 7:09 pm Post subject: HID Lights

I saw a drop in replacement (someone correct me if I'm wrong) that 

aeroleds.com had at Airventure.  The lumen output was similar to HID's. 

 	  Quote: 	
		  From what I gather the length and width of the beam from the led landing 

lights are the issue (again someone correct me if I'm mistaken).  Also I 
	


believe the price was significantly more than $100



Rick

#40956

---

mouser

Joined: 02 Feb 2010
Posts: 14
Location: Los Alamos, NM

Posted: Tue Sep 07, 2010 11:00 am Post subject: Re: HID Lights

Yeah AeroLEDs has a PAR36 lamp that fits in the DW mounts, but they are $500 a pop.   Never need replacing... but you'd have to fly HIDs for a long time before you needed $500 worth of replacement bulbs.

_________________
RV-10 #40988
http://mouser.org/projects/rv-10/
KLAM

Display posts from previous:

	Matronics Email Lists Forum Index -> RV10-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum