REFLECTOR: Performance Exhaust

[Don Johnston]

Great minds think alike. :-)

On Tue, May 14, 2013 at 8:20 AM, Scott Derrick <scott at tnstaafl.net> wrote:

>  I thought of a few when writing that, but held a tight rein on my
> fingers! ;-)
>
> -------- Original Message --------
> Subject: Re: REFLECTOR: Performance Exhaust
> From: Don Johnston <numa at comcast.net> <numa at comcast.net>
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org><reflector at tvbf.org>
> Date: 05/14/2013 06:53 AM
>
> There's a sexual joke in there somewhere, but I can't seem to find it.
>
> :-)
>
> On Tue, May 14, 2013 at 7:48 AM, Scott Derrick <scott at tnstaafl.net> wrote:
>
>> I've been told NACA's don't don't do much of anything in regards to
>> sucking when installed backwards.
>>
>> they make a cool looking exit duct but thats all.
>>
>> Scott
>>
>>
>> -------- Original Message --------
>> Subject: REFLECTOR: Performance Exhaust
>> From: Richard J. Gentil <richard at naples-air-center.com>
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Date: 05/13/2013 10:12 PM
>>
>>  Just a thought, since we use NACA'S for our cooling plenum what about a
>>> NACA for the exhaust? I would think a NACA with a 1 to 1 width to depth
>>> ratio of ramp for the exhaust would act as an augmenter running parallel to
>>> the free stream flow to get the exhaust up to the slipstream speed.
>>>
>>> Richard
>>>
>>> Sent from my iPhone 5
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>> --
>> To those leaning on the sustaining infinite, to-day is big with blessings.
>> Mary Baker Eddy
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>
>
>
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