REFLECTOR: Velocity heater
David Scharfenberg
dave at winco.net
Tue Jan 8 17:32:16 CST 2008
Yeah, it gets cold up here. Wednesday night when we flew home it was
-4. Yesterday it was 65! Go figure!
Dave
On Jan 8, 2008, at 3:39 PM, Ron Brown wrote:
> 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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>
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