REFLECTOR: Roof NACA's

Wed May 4 17:43:35 CDT 2005

Rene,

What size engine?

Are you tapping off the runners for any other cooling?  Oil cooler,
intercooler, water radiator?

Are you tapping off the runners for intake air?

Scott

> I have 300 hrs with no cooling problems with NACA's made 1 inch wider
> than recommended.  Usual Oil temps with two coolers is < 182 even with
> 10 thousand foot climbouts.
> Rene'
>
> -----Original Message-----
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
> Behalf Of Scott Derrick
> Sent: Monday, May 02, 2005 7:56 PM
> To: Velocity Aircraft Owners and Builders list
> Subject: Re: REFLECTOR: Roof NACA's
>
> Jorge,
>
> many thanks...
>
> Scott
>
> Jorge Bujanda wrote:
>
>> Scott,
>> I don't know if yours is an XL or a Std but my kit is an XL and my
>> scoops were installed at the Service Center.  They are 21 1/4" NACA
>> centerline to centerline, or 10 5/8" NACA centerline to fuse
> centerline.
>> Hope this helps.
>>
>> Jorge Bujanda
>> XL FG
>> Palmdale, CA
>>
>>
>>
>> Scott Derrick wrote:
>>
>>> Maybe I wasn't clear about this.
>>>
>>> I didn't ask how to build the NACA's, I have them, I asked how far
> apart
>>> they should be..
>>>
>>> Scott
>>>
>>>
>>>
>>>> FYI - I had similar questions about the roof NACA scoops a few weeks
>>>> back. I called Velocity about two weeks ago and they sent me the
> paper
>>>> templates & instructions on how to build them... for FREE!  Now
> that's
>>>> good support!
>>>>
>>>> Joel Carruth
>>>> Lockheed Martin
>>>> JSF - Pilot System Software
>>>> W: (817) 763-4337
>>>> Fax: (817) 777-8378
>>>> joel.l.carruth at lmco.com
>>>>
>>>> -----Original Message-----
>>>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org]
> On
>>>> Behalf Of michalk
>>>> Sent: Monday, May 02, 2005 8:34 AM
>>>> To: Velocity Aircraft Owners and Builders list
>>>> Subject: Re: REFLECTOR: Roof NACA's
>>>>
>>>> This is a spreadsheet developed by a Reflectorite:
>>>> http://www.tvbf.org/docs/nacascoop1.1.xls
>>>>
>>>> I don't remember who wrote it.  Someone pipe up for this credit.
>>>>
>>>> It will plot the layout of your NACA so that you can cut it out
>>>> yourself.  Easy to make.
>>>>
>>>> KeithHallsten wrote:
>>>>
>>>>
>>>>> Scott,
>>>>>
>>>>> My kit came with the armpit scoops, but I made the top NACA scoops
>>>>>
>>>>
>>>> using
>>>>
>>>>
>>>>> dimensions provided by Velocity.  I don't have my notes on that at
>>>>>
>>>>
>>>> home, and
>>>>
>>>>
>>>>> won't be back to the hangar until Tuesday at the earliest, but the
>>>>>
>>>>
>>>> factory
>>>>
>>>>
>>>>> guys should be able to give you the
>>>>>
>>>>
>>>> fuselage-centerline-to-scoop-centerline
>>>>
>>>>
>>>>> measurement.  You will probably need to get the molded ducts
> (runners)
>>>>>
>>>>
>>>> from
>>>>
>>>>
>>>>> the factory, anyway.
>>>>>
>>>>> Keith Hallsten
>>>>>
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Scott Derrick" <scott at tnstaafl.net>
>>>>> To: "Velocity Aircraft Owners and Builders list"
> <reflector at tvbf.org>
>>>>> Sent: Sunday, May 01, 2005 7:42 PM
>>>>> Subject: REFLECTOR: Roof NACA's
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> Sorry folks I forgot to change the Subject line.
>>>>>>
>>>>>> Roof NACA's.
>>>>>>
>>>>>> I need to cut the holes in the roof to install the NACA's. My
> plane
>>>>>>
>>>>>
>>>> was
>>>>
>>>>
>>>>>> a updraft, and the instructions say to cut out the pre-marked
> holes
>>>>>> which I don't have.
>>>>>>
>>>>>> Anybody know the spacing side to side, or center to center I
> should
>>>>>>
>>>>>
>>>> use?
>>>>
>>>>
>>>>>> Scott
>>>>>>
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>>
>>
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