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mr.sun
Joined: 30 Jan 2007
Posts: 85
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 Posted: Fri May 31, 2013 5:55 am Post subject: alternate air |
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I don't have an alternate air valve in my snorkle in my IO-360 with horizontal induction. Yet. Was thinking of mounting a cable operated valve on the rear baffle near the oil cooler where there is lots of room. Then I would snake a piece of scat tubing under the engine to the snorkle under the air filter. This might give me a bit of ram air in cruise also. Thoughts? Advice?
Greg On May 31, 2013 4:11 AM, "Dale Ensing" <densing(at)carolina.rr.com (densing(at)carolina.rr.com)> wrote:[quote] --> RV-List message posted by: Dale Ensing <densing(at)carolina.rr.com (densing(at)carolina.rr.com)>
Recommend a visit to the Udvar-Hazy museum while you are in Leesburg.
Dale Ensing
On May 30, 2013, at 11:44 PM, "RV7ASask" <rv7alamb(at)sasktel.net (rv7alamb(at)sasktel.net)> wrote:
> --> RV-List message posted by: "RV7ASask" <rv7alamb(at)sasktel.net (rv7alamb(at)sasktel.net)>
>
> Fellow RVers,
>
> My wife and I are planning a 4000nm trip in the RV7A leaving mid June. We live in Saskatchewan and will be heading east across Canada then south to NYC and Washington, DC. The tentative route will take us to Winnipeg, Thunder Bay, Timmins, Quebec City, Charlottetown, Bangor, Brunswick, Danbury, Gettysburg, Leesburg, Dayton, Dubuque, Bemidji, Winnipeg and home.
>
> My wife is looking forward to the LL Bean flagship store in Freeport, Maine and the Jinny Beyer Quilt Studio in Virginia. I’m looking forward to the VFR corridor down the Hudson River past Manhattan then to Gettysburg. We are both looking forward to PEI, Gettysburg history and Washington.
>
> My questions: What is the best airport to stop at in the Gettysburg area? Are there any secrets to flying the VFR corridor by NYC that are not on the NYC Terminal chart?
>
> Any secrets in and around Leesburg other than what is in the on-line DC Special Flight Rules Area course?
>
> What is the best place to stop in the Dayton area? How about smaller airport in the Midwest: Dubuque, Madison, Rockford, Davenport areas?
>
> Any other suggestions about taking a long trip or along the route are welcome.
>
> Thanks
> David Lamb
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=401641#401641
>
>
>
>
>
>
>
>
>
>
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jfogarty(at)tds.net
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| Posted: Fri May 31, 2013 8:37 am Post subject: alternate air |
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I think the alternate air is just this, if the ram air box becomes plugged
with snow, ice or a bird you will need air from somewhere for the engine to
run, I think the cowling air would be the best air and I hope I will never
need it. Once it is opened. you will need to remove the cowling to make
sure it is closed properly, per plans. Hope this helps.
Jim
On Fri, May 31, 2013 at 8:55 AM, <mr.gsun(at)gmail.com> wrote:
[quote] I don't have an alternate air valve in my snorkle in my IO-360 with
horizontal induction. Yet. Was thinking of mounting a cable operated
valve on the rear baffle near the oil cooler where there is lots of room.
Then I would snake a piece of scat tubing under the engine to the snorkle
under the air filter. This might give me a bit of ram air in cruise also
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Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 25204
Location: Livermore CA USA
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| Posted: Fri May 31, 2013 9:45 am Post subject: alternate air |
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At 09:36 AM 5/31/2013 Friday, you wrote:
| Quote: | I think the alternate air is just this, if the ram air box becomes plugged with snow, ice or a bird you will need air from somewhere for the engine to run, I think the cowling air would be the best air and I hope I will never need it. Once it is opened. you will need to remove the cowling to make sure it is closed properly, per plans. Hope this helps.
Jim
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If you design the cable installation correctly, there's no need to remove the cowling. It will work like a normal control. Here are a few pictures of my installation.
-
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 150+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode
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tfarrell839
Joined: 10 Nov 2012
Posts: 27
Location: Watsonville, CA
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| Posted: Fri May 31, 2013 9:59 am Post subject: alternate air |
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We generally seal up the Alternate Air Door with a little bit (read thin
layer) of rtv sealant. You should test your installation to make sure
it will break away. We usually "test" it about 3 or four times before
first flight just by pulling on it and saying "hey, what's this for
again . . . oh yeah . . . woops". So label it early.
Tim
--
Tim Farrell -
Aircrafters -
Owner/Manager -
(831) 722-9141 -
www.aircraftersLLC.com
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dan.pat.b(at)gmail.com
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| Posted: Fri May 31, 2013 11:14 am Post subject: alternate air |
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David
My wife and I did a trip to Wisconsin from Northampton, MA (7B2) last
August in our RV-7A. We spent several days in DeForest, WI, just north of
Madison, visiting with our grandchildren. We used Middleton - Morey (C29)
airport in Middleton, WI, about 10 NM west of downtown Madison, under the
outer ring of the class C airspace . Middleton is clean, well maintained,
has a 4000' east/west runway, Avis rent-a-car on the field (call ahead to
be sure you have one waiting for you), decent nearby hotels and
restaurants, and friendly / helpful staff.
I've flown the Hudson corridor four times, twice in each direction - a
pleasant experience - only advice I can offer is be familiar with what's
on the NYC Terminal Area chart, take your time, stay on altitude, announce
your position at the required locations, keep your heads on a swivel and be
aware that from 1100' an engine failure will have you in the river in less
than two minutes - there are no other options.
I've been to the Udvar - Hazy National Air and Space Museum at Dulles
Airport (KIAD) - (a must see, bucket list item for any aviation enthusiast)
- you could easily spend two full days there) but have never flown into
Leesburg Exec (KJYO) which seems to be the preferred airport to use. I'm
told by folks who've done it that you should thoroughly review the material
in the on-line Special Flight Rules Area course and be careful to comply
with requirements.
My wife and have flown up to LL Bean several times. We use the former
Brunswick Naval Air Station (KBXM) - there is an FBO there with friendly
and helpful staff and great facilities. Hertz has an on-field franchise
but be sure to call ahead - they don't have many vehicles - Enterprise is
downtown but can have a car there within 20 minutes of your arrival - once
you get on the road it's about 20 minutes to Freeport and LL Bean - please
spend lots of $$ - the U.S. economy can use the help
Hope this is helpful. Have a great trip - bonne chance et bon voyage.
Dan Bergeron
RV-7A - N307TB
404 hours since first
flight on Aug 4, 2009
On Fri, May 31, 2013 at 12:36 PM, jfogarty tds.net <jfogarty(at)tds.net> wrote:
[quote] I think the alternate air is just this, if the ram air box becomes plugged
with snow, ice or a bird you will need air from somewhere for the engine to
run, I think the cowling air would be the best air and I hope I will never
need it. Once it is opened. you will need to remove the cowling to make
sure it is closed properly, per plans. Hope this helps.
Jim
On Fri, May 31, 2013 at 8:55 AM, <mr.gsun(at)gmail.com> wrote:
> I don't have an alternate air valve in my snorkle in my IO-360 with
> horizontal induction. Yet. Was thinking of mounting a cable operated
> valve on the rear baffle near the oil cooler where there is lots of room
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV-List |
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