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Europa- Fresh air vents

 
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Bob.Fairall(at)fairalls.c
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PostPosted: Thu Dec 17, 2009 9:31 am    Post subject: Europa- Fresh air vents Reply with quote

I’m progressing well on my second Europa (kit 494) and exploring the options for cockpit fresh air.

My existing Europa has the plastic adjustable NACA duct type air inlets by pilot and passenger’s knees, but these are not particularly effective.

I have heard of and seen a number of roof entry fresh air systems which I gather are very effective, but I recall reading somewhere that cutting the roof can compromise the strength of the cockpit module.

All (UK) LAA approvable suggestions gratefully received.

Thanks

Bob Fairall (G-BXLK, mono classic, 400 hours and for sale, & G-CBXW)

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jimpuglise(at)comcast.net
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PostPosted: Thu Dec 17, 2009 10:21 am    Post subject: Europa- Fresh air vents Reply with quote

Bob-

I have been working with Flight Crafters and have installed the system as I have progressed. They recommend an NACA duct mounted on the rudder. Attach a 2 inch stainless mesh to it to keep critters out and FLOX it in. I used the mesh from a stainles steel tea strainer. Run 2 inch SCAT tubing to a channel along the inside of the fuselage top. The channel is made from 2 X BID over a foam mold. The channel feeds the overhead panel where you can install eye vents. I used a single very large eye vent from Stein Air in the back and another in the front. How does it work? Can't say, I am not flying yet, but Bob has installed a number and says they work just fine. He uses the smaller eyeball vents. Also, AS sells an "ultimate vent" that you install directly under the rear corners of the windshield that supposedly works very well. The price of all the vents is bout $ 100 each.

Jim Puglise A-283

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Ivor Phillips



Joined: 16 Jan 2006
Posts: 253
Location: London UK

PostPosted: Thu Dec 17, 2009 12:01 pm    Post subject: Europa- Fresh air vents Reply with quote

Hi Bob
I have fitted a Pair of ultimate vent to my aircraft, They work very well, much better that the Europa NACA vents, The only problem is a small amount of weepage if flying in rain, In Spain this year with temperatures approaching 40C it was bearable, so I would recomend them.
Ivor
---- Bob Fairall <Bob.Fairall(at)fairalls.co.uk> wrote:
Quote:
I'm progressing well on my second Europa (kit 494) and exploring the options for cockpit fresh air.

My existing Europa has the plastic adjustable NACA duct type air inlets by pilot and passenger's knees, but these are not particularly effective.

I have heard of and seen a number of roof entry fresh air systems which I gather are very effective, but I recall reading somewhere that cutting the roof can compromise the strength of the cockpit module.

All (UK) LAA approvable suggestions gratefully received.

Thanks

Bob Fairall (G-BXLK, mono classic, 400 hours and for sale, & G-CBXW)

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ami(at)mcfadyean.freeserv
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PostPosted: Thu Dec 17, 2009 12:55 pm    Post subject: Europa- Fresh air vents Reply with quote

Bob,
Try putting a small VGs infront of each of the entry-ramps to the "knee level" vents; these should then create an inflow that is more than adequate.

Duncan McF.
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milneab(at)btinternet.com
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PostPosted: Thu Dec 17, 2009 1:06 pm    Post subject: Europa- Fresh air vents Reply with quote

For my second Europa I used the Aircraft Spruce supplied circular type in the same location as the NACA type in the kit.

These operate in butterfly valve fashion, seal well and are controllable from a dribble of cold air that is enough to clear misting in the winter to a good blast from the lap upwards on hot days. If required a handy map can divert the airflow anywhere within reason.

Alasdair Milne G-CEYK
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rampil



Joined: 04 May 2007
Posts: 870

PostPosted: Thu Dec 17, 2009 4:20 pm    Post subject: Re: Europa- Fresh air vents Reply with quote

Hi All,

I have been flying my bird for more than five years with Bob and Russell's
design for a rudder to canopy overhead vents.

I have to say its a great idea, that the fronto-lateral surface of the
rudder should be a nice high pressure area to feed the duct, but in
practice, in cruise, the air flow from these vents is barely perceptible.

Far more ventilation occurs from the open armrest/fuel filter tunnel,
probably from the flap slots (which should be negative pressure at
first look!)

If I felt like an improvement in this department, I would cover the
external naca vent and just put a rotating vent in the door window.

Just my opinion!

Ira


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rparigoris



Joined: 24 Nov 2009
Posts: 804

PostPosted: Thu Dec 17, 2009 7:03 pm    Post subject: Europa- Fresh air vents Reply with quote

We chose on our XS Mono to go the route of the Ultimate ventilators as sold by Aircraft Spruce. Although Vans sells units that are similar, they are smaller (and less expensive).Richards XS with conventional gear has Ultimate vebntilators and they work well.Here is our install with some pics at end with location others have chosen: http://www.europaowners.org/forums/gallery2.php?g2_itemId=36201Ron Parigoris [quote][b]

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rlborger(at)mac.com
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PostPosted: Thu Dec 17, 2009 7:48 pm    Post subject: Europa- Fresh air vents Reply with quote

Bob,

I have elected to go with the ACS Ultimate Ventilators. In my 20 hours so far, they seem to do a reasonable job of providing airflow into the cockpit when you want it and cut it off effectively when you don't.
You can see pics of the ventilators:
http://www.europaowners.org/forums/gallery2.php?g2_itemId=63921
and my installation:
http://www.europaowners.org/forums/gallery2.php?g2_itemId=66265&g2_page=2
on my build web site.
Check six,
Bob Borger
Europa Kit #A221 N914XL, XS Mono, Intercooled 914, Airmaster C/S
http://www.europaowners.org/N914XL
Aircraft Flying!
3705 Lynchburg Dr.
Corinth, TX 76208
Home: 940-497-2123
Cel: 817-992-1117




On Dec 17, 2009, at 11:25, Bob Fairall wrote:
Quote:
I’m progressing well on my second Europa (kit 494) and exploring the options for cockpit fresh air.

My existing Europa has the plastic adjustable NACA duct type air inlets by pilot and passenger’s knees, but these are not particularly effective.

I have heard of and seen a number of roof entry fresh air systems which I gather are very effective, but I recall reading somewhere that cutting the roof can compromise the strength of the cockpit module.

All (UK) LAA approvable suggestions gratefully received.

Thanks

Bob Fairall (G-BXLK, mono classic, 400 hours and for sale, & G-CBXW)
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frans(at)paardnatuurlijk.
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PostPosted: Fri Dec 18, 2009 12:14 am    Post subject: Europa- Fresh air vents Reply with quote

Bob Fairall wrote:
Quote:
I have heard of and seen a number of roof entry fresh air systems
which I gather are very effective, but I recall reading somewhere
that cutting the roof can compromise the strength of the cockpit
module.

Well, I guess we all know how to compensate for the loss of strength
caused by cutting a small hole in 3mm foam with about one layer of bid
on each side. Wink The middle of the "bar" isn't anything more than that,
so if it is structural at all, it is easy to compensate.

I made a roof vent, besides ultimate ventilators on the fuselage sides,
and I can tell you that on the ground at idle these roof vents already
really blow. With anything more than idle I had to close them, as they
produced so much air that it wasn't comfortable anymore.

The advantage over a tail solution is that it is lighter in weight, the
"duct" is considerably shorter so there is less friction hence more air,
and, last but not least, it is not likely that anything from the exhaust
makes it to the roof top (while I wouldn't guarantee that the tail won't
receive some of the exhaust fumes).

My roof vent consists of a small retractable scoop, just 5 cm wide, and
opens up about 1,5 cm. It feeds two eyeball vents in the roof panel.
I followed the procedure explained in the manual for various other
openings: Make a splash mold of the intended roof area, cut the opening,
take away some of the skin on the inside, take out some of the foam
core, and connect the inner skin to the outer skin with flox and bid,
creating a flange at the same time. I made the flange somewhat lower, so
that there was room to make a waterproof seal.

The construction by itself is stronger than the piece taken away.

Frans


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air.guerner(at)orange.fr
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PostPosted: Fri Dec 18, 2009 5:10 am    Post subject: Europa- Fresh air vents Reply with quote

<<<<<<<<<the plastic adjustable NACA duct type air inlets by
pilot and passenger's knees, but these are not particularly effective.>>>>>>>>

In my opinion the supplied NACA are very effective to cool the pilot left and passenger's right knees only. After living with that inconvenience for 7 years and 600 flight hours, I decided to fix it. I made a fiberglass conduit which is glued in place and allows the fresh air from the NACA to be rerouted forward to an aluminum eyeball vent. The original Naca shutoff panel has been removed. The conduit is hidden behind the sidewall carpeting. See attached pictures. Now I can direct fresh air were I want it. The pilot side vent has been tested for one year now and the pax side was installed last october. Both are very effective.

Remi Guerner
F-PGKL


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kevann(at)gotsky.com
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PostPosted: Fri Dec 18, 2009 12:12 pm    Post subject: Europa- Fresh air vents Reply with quote

I'm happy with the ultimate vents I placed above the knee, so they are just clear of the instrument module. Seems like the lightest and easiest to install of just about any of the ideas out there.

Kevin
[quote] ---


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garrys(at)tampabay.rr.com
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PostPosted: Fri Dec 18, 2009 1:06 pm    Post subject: Europa- Fresh air vents Reply with quote

The summers don't get much hotter than here in Florida. I initially built-in the NACA ducts at knee level as per the plans........almost worthless. Much later I discovered the Aircraft Spruce "Ultimate Vents", which I placed in the lower corners of the windscreen, on each side. Fantastic!!!! They can be directed to blow on your upper torso and face, from a whisper to a tornado. They really work!!! And the best part is that they can be installed in a few minutes AFTER you've completed your build, without messing up your paint job or your interior upholstery.

Garry Stout
Tampa, Florida 914 Tri

[quote] ---


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paul.the.aviator(at)gmail
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PostPosted: Fri Dec 18, 2009 1:59 pm    Post subject: Europa- Fresh air vents Reply with quote

Hi Gary, and others that have gone before me,

I was wondering how you were able to fit up the Ultimate ventilators without damaging your paint finish.

Thanks,  Paul
On Fri, Dec 18, 2009 at 3:04 PM, Garry <garrys(at)tampabay.rr.com (garrys(at)tampabay.rr.com)> wrote:
[quote]  And the best part is that they can be installed in a few minutes AFTER you've completed your build, without messing up your paint job or your interior upholstery.
 


[b]


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garrys(at)tampabay.rr.com
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PostPosted: Fri Dec 18, 2009 2:51 pm    Post subject: Europa- Fresh air vents Reply with quote

Hi Paul,

The hole I drilled to fit the ventilators was in the Plexiglas windscreen. I think in the UK they call it "Perspex" or some such thing. I used a cheap and simple tool called a "fly cutter", chucked into my cordless drill. Make sure you have a steady hand, and turn the drill at the lowest speed possible..........like 50 RPM if possible. It made a neat, clean hole and I bonded the ventilator in with Redux. The whole job couldn't have taken more than 5 minutes. I drilled the holes in the outermost corners of the windscreen, leaving about one inch clearance from the edges of the windscreen. I hope this description helps.

Garry Stout
Tampa, Florida 914 Tri

[quote] ---


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rlborger(at)mac.com
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PostPosted: Fri Dec 18, 2009 4:33 pm    Post subject: Europa- Fresh air vents Reply with quote

Paul,

I installed my vents during construction but don't see why it couldn't be accomplished after the build. I found a hole saw that was exactly the right diameter to fit the ridge on the vent. I would recommend applying tape to the paint side prior to drilling from the paint side to protect the paint from chipping. Drill slowly and carefully. Once you have run the center drill bit through, you might even consider operating the hole saw by hand at least until it is through the outer skin.
You will have to remove the interior skin and foam in a larger circle to allow the ring to sit flush with the outer surface. Careful work with a box cutter type blade will do it.
I used Redux/Araldite to bond the ring in place.
I hope this helps,
Bob Borger
Europa Kit #A221 N914XL, XS Mono, Intercooled 914, Airmaster C/S
http://www.europaowners.org/N914XL
Aircraft Flying!
3705 Lynchburg Dr.
Corinth, TX 76208
Home: 940-497-2123
Cel: 817-992-1117




On Dec 18, 2009, at 15:58, Paul McAllister wrote:
Quote:
Hi Gary, and others that have gone before me,

I was wondering how you were able to fit up the Ultimate ventilators without damaging your paint finish.

Thanks, Paul
On Fri, Dec 18, 2009 at 3:04 PM, Garry <garrys(at)tampabay.rr.com (garrys(at)tampabay.rr.com)> wrote:
Quote:
And the best part is that they can be installed in a few minutes AFTER you've completed your build, without messing up your paint job or your interior upholstery.




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duanefamly(at)aol.com
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PostPosted: Fri Dec 18, 2009 11:31 pm    Post subject: Europa- Fresh air vents Reply with quote

Gary, you wouldn't happen to have a pix of your vents?

Mike Duane
Redding, CA
XS Conventional Gear



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wdaniell(at)etb.net.co
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PostPosted: Sat Dec 19, 2009 7:54 am    Post subject: Europa- Fresh air vents Reply with quote

garry

can you send a pic please

Will

Garry wrote: [quote] 1024x768 <![endif]--> Clean DocumentEmail false false false EN-GB X-NONE X-NONE MicrosoftInternetExplorer4 <![endif]--> <![endif]--> (at)font-face { font-family: Cambria Math; } (at)font-face { font-family: Calibri; } (at)font-face { font-family: Consolas; } (at)page Section1 {size: 612.0pt 792.0pt; margin: 72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin: 35.45pt; mso-footer-margin: 35.45pt; mso-paper-source: 0; } P.MsoNormal { FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: "Times New Roman"; mso-style-unhide: no; mso-style-qformat: yes; mso-style-parent: ""; mso-pagination: widow-orphan } LI.MsoNormal { FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: "Times New Roman"; mso-style-unhide: no; mso-style-qformat: yes; mso-style-parent: ""; mso-pagination: widow-orphan } DIV.MsoNormal { FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; 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mso-hansi-font-family: Calibri; mso-ansi-font-size: 11.0pt; mso-bidi-font-size: 11.0pt; mso-style-type: personal-reply } SPAN.SpellE { mso-style-name: ""; mso-spl-e: yes } .MsoChpDefault { FONT-SIZE: 10pt; mso-ansi-font-size: 10.0pt; mso-bidi-font-size: 10.0pt; mso-style-type: export-only; mso-default-props: yes } DIV.Section1 { page: Section1 } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} <![endif]--> <![endif]--> <![endif]--> The summers don't get much hotter than here in Florida.  I initially built-in the NACA ducts at knee level as per the plans........almost worthless.  Much later I discovered the Aircraft Spruce "Ultimate Vents", which I placed in the lower corners of the windscreen, on each side.  Fantastic!!!!  They can be directed to blow on your upper torso and face, from a whisper to a tornado.  They really work!!!  And the best part is that they can be installed in a few minutes AFTER you've completed your build, without messing up your paint job or your interior upholstery.
 
Garry Stout
Tampa, Florida  914 Tri
 
Quote:
----- Original Message -----
From: Kevin Klinefelter (kevann(at)gotsky.com)
To: europa-list(at)matronics.com (europa-list(at)matronics.com)
Sent: Friday, December 18, 2009 3:07 PM
Subject: Re: Europa- Fresh air vents


I'm happy with the ultimate vents I placed above the knee, so they are just clear of the instrument module. Seems like the lightest and easiest to install of just about any of the ideas out there.
 
Kevin
Quote:
----- Original Message -----
From: Bob Fairall (Bob.Fairall(at)fairalls.co.uk)
To: europa-list(at)matronics.com (europa-list(at)matronics.com)
Sent: Thursday, December 17, 2009 9:25 AM
Subject: Europa- Fresh air vents



I’m progressing well on my second Europa (kit 494) and exploring the options for cockpit fresh air.
 
My existing Europa has the plastic adjustable NACA duct type air inlets by pilot and passenger’s knees, but these are not particularly effective.
 
I have heard of and seen a number of roof entry fresh air systems which I gather are very effective, but I recall reading somewhere that cutting the roof can compromise the strength of the cockpit module.
 
All (UK) LAA approvable suggestions gratefully received.
 
Thanks
 
Bob Fairall (G-BXLK, mono classic, 400 hours and for sale, & G-CBXW)

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