REFLECTOR: Velocity heater

[Ron Brown]

Another thought - which I never got around to implementing, would be to 
block off some of the NACA scoop area feeding the engine.  There would be 
more heat available if the vernatherm opened and let some hot oil into the 
nose mounted cooler.

I have gotten pretty good heat from the nose cooler by having the flapper 
door completely blocking the oil cooler exit.  But it doesn't get that cold 
here in NC like up north and out west.  If it is below 30 degrees, I ain't 
flying.

Ronnie

----- Original Message ----- 
From: "David Scharfenberg" <dave at winco.net>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Tuesday, January 08, 2008 1:46 PM
Subject: Re: REFLECTOR: Velocity heater


> Thanks Rene
>
> My plan now is to make a removable cover for the NACA scoop in front of
> the oil cooler.
>
> Attach a bilge blower onto the close-out bulkhead above the canard.
>
> Run SCAT tubing from the blower to a hole in the back of the NACA scoop.
>
> Make a cover for the above mentioned hole in the back of the NACA scoop.
>
> In the spring, summer, and fall I will cover the hole and uncover the
> NACA scoop.
>
> In the winter I will cover the NACA scoop and uncover the hole.
>
> I'll let you know how it works out.
>
> Dave
>
>
>
> On Jan 8, 2008, at 12:04 PM, Rene Dugas wrote:
>
>> Dave, just a thought that I tried and worked well was to suck air out
>> of
>> one front foot well and blow it into the other since you already have
>> the scat tubing and with the flapper valve closed the cavity behind the
>> oil cooler gets quite warm although not hot.  I placed a bilge fan
>> blower here and recirculate with minimal added work and significant
>> heat
>> if I duct tape over the oil cooler fins for winter flying.  I do not
>> need either oil cooler for winter flying with my IO 540.  I also have
>> the 12v blanket and stay quite comfortable.
>> Rene'
>
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