REFLECTOR: Re: Canard Cover and cowl attachment system

[Alex Balic]

Thanks Chuck- I will try something similar, but my right side NACA goes
to the turbo intercooler, which is only about 5" from the firewall- I
will look to see if I can cut it somewhere and fit the rubber like you
did though- but it will be tricky.......

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Chuck Harbert
Sent: Monday, July 11, 2005 6:04 PM
To: reflector at tvbf.org
Subject: REFLECTOR: Re: Canard Cover and cowl attachment system

Answer to Herb Sanders: Unfortunately, I can't make it to Oshkosh this
year, 
but plan to come next year when (hopefully) everything is done (Paint, 
Upholstery, Turbo, Air Stair Door, etc.).

Answer to Alex Balic: I used a section of a tire innertube to mate the
cowl 
naca duct to the engine plenum. I stretched it over both ends which are 
about 3/4" apart. I then bent some thin 1/2" wide aluminum strips(4 per 
side) over the rubber on the ducts, then put 1/8" pop rivits thru 
pre-drilled holes (with 1/8" aluminum pop rivit washers inside the duct
on 
the other side of the rivit).

This allows me to secure the naca duct to the firewall with small thru
bolts 
and still have a positive seal and no vibration concerns. It also makes
it 
pretty easy to remove my plenum and get to the top of my engine. I used 
silicone to seal my engine plenum, but used duct tape so it wouldn't
stick, 
then secured it with SS screws (siliconed) and safety wire.

I'll take some pictures and post them later this week.

Chuck H

----------------------------------- 

> From: "Herb Sanders" <hsanders at bellsouth.net>
> Subject: RE: REFLECTOR: Canard Cover and cowl attachment system
> To: "'Velocity Aircraft Owners and Builders list'"
> <reflector at tvbf.org>
> Message-ID: <000601c583d0$d5d576e0$1900a8c0 at herbhehbdwmte2>
> Content-Type: text/plain; charset="us-ascii"
>
>
>
> [Herb Sanders] Chuck, the cowl pictures are interesting. Are you
planning 
> to
> be at Oshkosh? Herb
>

> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 8 Jul 2005 10:26:37 -0500
> From: "Alex Balic" <alex157 at pwhome.com>
>
>
> Hey Chuck-
> Great pictures/idea with the hinges- thanks for them- will do the same
> on my cowl- one semi-related question- seems like the ducts from your
> top NACAs are mounted directly to the firewall- assume that they are
> mounted directly to the engine also- is there some sort of flex duct
in
> between? I don't have exactly that setup with my Subaru, but I am
> ducting the right side NACA to my turbo intercooler, which mounts
> directly to the engine, and needed some sort of flex connection to the
> NACA.
>
>
> Hope you enjoy Arlington!
>
> Alex
 


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