REFLECTOR: Mysterious bags of stuff...

Glenn Babcock via Reflector reflector at tvbf.org
Thu Jul 31 09:51:25 CDT 2014


Luis,

Cabosil is a somewhat sticky powder. Flox and milled fibers are interchangeable, but milled fibers are a bit rough and may make you itch. Flox is soft and a little clumpy. 

Regards,

Glenn


> On Jul 31, 2014, at 10:41 AM, Luciano, Luis I CIV PEOSUB, PMS404P via Reflector <reflector at tvbf.org> wrote:
> 
> It has been a while since I had to do any filling and when rummaging through my matls to pick up the effort, I found that I could no longer distinguish between my fillers.  These were ordered from the factory years ago but delivered unlabeled which I didn't notice at the time.  I should have microballoon, flocked cotton, milled fiber, cabosil - but, in reality, have three bags of VERY SIMILAR LOOKING "white stuff".
> 
> I'm pretty confident I can identify microballoon as when I opened the ziplock bag slightly, it blew out in a whisp of fine dust very easily... I had no mask/respirator at the time :(
> 
> The other two bags show a slight visual difference between them but I can't tell from looking which is flocked cotton, milled fiber, or cabosil... can the collective assist in providing visual clues to distinguish between them.  Any quick test that I could use (eg: magnifying glass, burn flame color, water absorption, acid/vinegar test on a sample, other)?
> 
> Thanks
> Luis Luciano
> Velocity XL-5 "Dulcinea"
> 
> -----Original Message-----
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> Subject: Reflector Digest, Vol 112, Issue 27
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> Today's Topics:
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>   1.  Overhead NACAs (John Dibble via Reflector)
>   2. Re:  Overhead NACAs (Jerry Teitsma via Reflector)
>   3. Re:  Overhead NACAs (Tim Rhodenbaugh via Reflector)
> 
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Wed, 30 Jul 2014 11:13:41 -0500
> From: John Dibble via Reflector <reflector at tvbf.org>
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Subject: REFLECTOR: Overhead NACAs
> Message-ID: <53D919B5.8070701 at bluefrog.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
> 
> For those with the overhead NACA vents for engine cooling, does the duct connect directly to the plenum or is there a flexible joint for vibration?
> 
> Thanks,
> 
> John
> 
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> ------------------------------
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> Message: 2
> Date: Wed, 30 Jul 2014 17:29:00 +0000 (UTC)
> From: Jerry Teitsma via Reflector <reflector at tvbf.org>
> To: John Dibble <aminetech at bluefrog.com>, Reflector
>    <reflector at tvbf.org>
> Subject: Re: REFLECTOR: Overhead NACAs
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> 
> You certainly need some ability to handle engine movement.  I used a section of rubber (cut from an inner tube) in the connection.  The gap between the rigid sections is about 2 inches. 
> 
> ----- Original Message -----
> 
> From: "Reflector" <reflector at tvbf.org>
> To: "Reflector" <reflector at tvbf.org>
> Sent: Wednesday, July 30, 2014 10:13:41 AM
> Subject: REFLECTOR: Overhead NACAs 
> 
> For those with the overhead NACA vents for engine cooling, does the duct connect directly to the plenum or is there a flexible joint for vibration? 
> 
> Thanks, 
> 
> John 
> 
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> Message: 3
> Date: Wed, 30 Jul 2014 16:17:01 -0500
> From: Tim Rhodenbaugh via Reflector <reflector at tvbf.org>
> To: John Dibble <aminetech at bluefrog.com>, Velocity Aircraft Owners and
>    Builders list <reflector at tvbf.org>
> Subject: Re: REFLECTOR: Overhead NACAs
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> I put a little silicone on the plenum end where it meets the firewall to stop leaks and I suppose it gives a little vibration suppression as we'll Tim Rhodenbaugh XLRG
> 
> Sent from my iPhone
> 
>> On Jul 30, 2014, at 11:13 AM, John Dibble via Reflector <reflector at tvbf.org> wrote:
>> 
>> For those with the overhead NACA vents for engine cooling, does the duct connect directly to the plenum or is there a flexible joint for vibration?
>> 
>> Thanks,
>> 
>> John
>> 
>> ---
>> This email is free from viruses and malware because avast! Antivirus protection is active.
>> http://www.avast.com
>> 
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>> http://www.tvbf.org/archives/velocity/maillist.html
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