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Defroster-system?

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alfolavf(at)online.no
Guest

Posted: Sun Feb 19, 2006 11:43 am Post subject: Defroster-system?

Hi all!



Thanks for the inputs on the new wing tip landing lights! I'll go for the LE landing lights then.



I've another one for you:

In addition to the cabin heat, I also need a way to send warm air to the windshield, in other words a defrost system.



I was thinking that maybe I could mount an "Y" coupling on the hose supplying cabin heat and route warm air from the "Y" intersection to the windshield, if I cut out some long slots in the area just below the windshield. (almost like a car)



How has other builders living in cold areas solved this?

While I'm at it: 



I saw that there's some "hatches" for extra fresh air that can be installed in the forward portion of the fuselage which can be used on warm days.

Anyone have any experience with this?

Is the fresh air intakes which comes with the kit inadequate?



Here I'm asking RV-operaters who's flying in weather conditions like Norway: summer temps mostly around 20-25 degrees celcius (approx 65-75 fahrenheit)



Best regards Alf Olav Frog / Norway

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N67BT(at)aol.com
Guest

Posted: Sun Feb 19, 2006 5:05 pm Post subject: Defroster-system?

 	  Quote: 	
		  I used a    small computer type fan mounted to the louvered cabin heat panel.  Not    flying yet so I don't know how well it will work.  I used round aluminum    flanges at both ends of the SCAT duct.   See:   http://users.aol.com/n67bt/defrostfan.htm

    

   Bob Trumpfheller

   <<I've another one for you:

In addition to the cabin heat, I    also need a way to send warm air to the windshield, in other words a defrost    system.



I was thinking that maybe I could mount an "Y" coupling on the    hose supplying cabin heat and route warm air from the "Y" intersection to the    windshield, if I cut out some long slots in the area just below the    windshield. (almost like a car)



How has other builders living in cold    areas solved this?>>

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shaun-s(at)sbcglobal.net
Guest

Posted: Sun Feb 19, 2006 5:54 pm Post subject: Defroster-system?

i wish to opt out



N67BT(at)aol.com wrote:   	  Quote: 	
		         	  Quote: 	
		  I used a small computer type fan mounted to the louvered cabin heat panel.  Not flying yet so I don't know how well it will work.  I used round aluminum flanges at both ends of the SCAT duct.  See:   http://users.aol.com/n67bt/defrostfan.htm

   

  Bob Trumpfheller

  <<I've another one for you:

In addition to the cabin heat, I also need a way to send warm air to the windshield, in other words a defrost system.



I was thinking that maybe I could mount an "Y" coupling on the hose supplying cabin heat and route warm air from the "Y" intersection to the windshield, if I cut out some long slots in the area just below the windshield. (almost like a car)



How has other builders living in cold areas solved this?>>

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rv6capt(at)pacificcoast.n
Guest

Posted: Mon Feb 20, 2006 7:36 am Post subject: Defroster-system?

I live in Canada and have no problems with heat or need for a defroster. 

The coldest that I  have flown in has only been -23c.



Cheers

Norman

Shaun Smith wrote:



 	  Quote: 	
		   i wish to opt out



 */N67BT(at)aol.com/* wrote:



         I used a small computer type fan mounted to the louvered cabin

         heat panel.  Not flying yet so I don't know how well it will

         work.  I used round aluminum flanges at both ends of the SCAT

         duct.



         See:   http://users.aol.com/n67bt/defrostfan.htm

          

         Bob Trumpfheller



         <<I've another one for you:

         In addition to the cabin heat, I also need a way to send warm

         air to the windshield, in other words a defrost system.



         I was thinking that maybe I could mount an "Y" coupling on the

         hose supplying cabin heat and route warm air from the "Y"

         intersection to the windshield, if I cut out some long slots

         in the area just below the windshield. (almost like a car)



         How has other builders living in cold areas solved this?>>

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rv-9a-online(at)telus.net
Guest

Posted: Mon Feb 20, 2006 9:28 am Post subject: Defroster-system?

Norman Younie wrote:

 	  Quote: 	
		   

 

 I live in Canada and have no problems with heat or need for a defroster. 

 The coldest that I  have flown in has only been -23c.

 

 Cheers

 Norman

 


	


Geez, Norman, Victoria doesn't really count as a cold climate!  Your 

lucky if you get frost for a week a year.



I assume, though that you make trips to the interior where it's colder.



By the way, are your daffodils blooming yet ?



Vern Little

9A (White Rock)



do not archive

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rv6capt(at)pacificcoast.n
Guest

Posted: Mon Feb 20, 2006 10:00 am Post subject: Defroster-system?

My daffodils are all done for the year, although there are still lots of 

them around. The trees in town are all in full bloom. I saw a bunch of 

roses in full bloom yesterday and the tulips are blooming. Yes I fly 

across to Alberta and as you know it gets cold there.

Cheers

Vern Little wrote:

 	  Quote: 	

 Norman Younie wrote:

> 

>

> I live in Canada and have no problems with heat or need for a 

> defroster. The coldest that I  have flown in has only been -23c.

>

> Cheers

> Norman

>

 Geez, Norman, Victoria doesn't really count as a cold climate!  Your 

 lucky if you get frost for a week a year.

 I assume, though that you make trips to the interior where it's colder.

 By the way, are your daffodils blooming yet ?

 Vern Little

 9A (White Rock)

 do not archive

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cgreimer(at)mts.net
Guest

Posted: Sun Feb 26, 2006 12:39 pm Post subject: Defroster-system?

 	  Quote: 	
		   I've another one for you:

 In addition to the cabin heat, I also need a way to send warm air to the 

 windshield, in other words a defrost system.



 I was thinking that maybe I could mount an "Y" coupling on the hose 

 supplying cabin heat and route warm air from the "Y" intersection to the 

 windshield, if I cut out some long slots in the area just below the 

 windshield. (almost like a car)



 How has other builders living in cold areas solved this?


	


I regularly fly in cold temps with my RV-6. I have the dual muffin fan 

defroster setup with no hot air feed. I run the fans at anything below 10C



0C and above - canopy and windshield stay relativly clear at all times.



0C to -10C    - canopy will fog up during startup and taxi but fans keep the 

windshield clear. Once in the air the rest of the canopy will quickly clear 

and stay that way until on the ground



-10 to -20C   - canopy and windshield will fog up during startup but usually 

the fans will keep a small viewing area clear. I need to rub the frost off 

the side windows to see adequately during taxi and takeoff. Once in the air 

the canopy gradually clears.



-30C and below - the heating/defrost system has a hard time coping but with 

cruise power the windshield will become mostly clear. The side windows 

require constant manual clearing.



This is all with one person on board as I don't carry a lot of passengers in 

winter.



One critical thing is not to overheat yourself and start sweating before 

entering the cockpit. If I need to clear snow from the hangar or anything 

physical, I'll cool down for awhile before getting in. I usually keep the 

canopy cracked until the engine is running, then I open the air vents to 

keep the air flowing until I'm ready for takeoff. You dont get any engine 

heat at idle anyway.



Curt

RV-6 C-GACR

375 hours

Winnipeg, Canada

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