REFLECTOR: Naca Hose heater

Thu Oct 9 19:00:44 CDT 2014

Question, On my 173RG, this is also the Naca vent for the Oil cooler. Are you having any cooling issues blocking the vent off?
I know on my Old Cherokee we would adjust the oil temp by adjusting the intake on the inlet to the oil cooler. Thank you, Jeff
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     On Thursday, October 9, 2014 7:16 AM, "Stockman, Bill via Reflector" <reflector at tvbf.org> wrote:

 Several us up "north" have installed a second cooler in the nose (mine is directly on top of the first in a 173FGE) that only recirculated cabin air for heating.    Works very well. 

-----Original Message-----
From: Reflector [mailto:reflector-bounces at tvbf.org] On Behalf Of Ron N VelocityXLFG via Reflector
Sent: Wednesday, October 08, 2014 5:38 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Naca Hose heater

I had a blower on the system naca intake at first a few years ago, The 
blower motor just did not work as well as I had hoped.  Now If i had a 
separate heater core
plumbed with a  blower just recirculating the cabin air I think that Idea would work. But in an effort to keep it simple I am going to work through this idea with a smaller duct  .  I a perfect world I will be faster because of Less Drag. Cool better by allowing the air to slow down and grab more heat from the heater core. Be able to us the extra heat to heat the cabin and be very simple.
Bad part is I just painted the plane I will have to touch it up.:(

Ron
On 10/8/2014 3:17 PM, Rene Dugas wrote:
> Ron,  I was attempting the same but just don't get the temps you folks get.  I duct tape off about 80 percent of the cooler front face in about a minute if it's cold.  One can't really see it and it removes even quicker.  Not elegant.  I this the circulation of air from cabin to cooler via bilge blower fan back into cabin is a better choice.  If I plumb it I will cover the NACA and blow cabin air through the cooler and overboard in summer.
> Best.
>
> Sent from Rene's iPad. A pleasure.  Go Apple.
>
>
>> On Oct 8, 2014, at 7:25 AM, Ron N VelocityXLFG via Reflector <reflector at tvbf.org> wrote:
>>
>> Now as winter is at our door step here in Chicago.  We had snow on Saturday. I have been trying a idea that seems to be
>> working out . I am in the early stages of testing this but so far I like what I feel.  My thought is the Naca front heater scoop
>> is what many say is a ram air scoop. I think  is to large. So to keep it short I am working on blocking off much of the scoop to see if I can get
>> more heat transfer by allowing the air to slow down and expand before being used to heat the cabin. The first test I had almost
>> no air pushing through the air ducts. The second test had nice warm air  . I have to do much more testing of this but I like the early results.
>> Has any one else tried this and if so what did you find.
>>
>>
>> First scoop
>> <habaehac.jpg>
>>
>>
>>
>>
>>
>> Second scoop
>>
>>
>> <fabibieg.jpg>
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>>
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