X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122] verified) by logan.com (CommuniGate Pro SMTP 5.3.9) with ESMTP id 4465385 for flyrotary@lancaironline.net; Mon, 13 Sep 2010 15:34:26 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.122; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=1.1 cv=88hQlV/VnhrPhhPadeRuWHBNMc0qRjlK2a7+9yZesI4= c=1 sm=0 a=Hsi8JR_PQt0A:10 a=rPkcCx1H5rrOSfN0dPC7kw==:17 a=arxwEM4EAAAA:8 a=r1ClD_H3AAAA:8 a=pedpZTtsAAAA:8 a=N8B9JuSIAAAA:8 a=7g1VtSJxAAAA:8 a=Ia-xEzejAAAA:8 a=R_9hhzZie3ya7KnZNSAA:9 a=fJtz6k3bEXr7gwSoKIMA:7 a=KlqRIuyIXWLBJFYXWQO5RnPkKjEA:4 a=wPNLvfGTeEIA:10 a=Qa1je4BO31QA:10 a=eJojReuL3h0A:10 a=vFod1_t4lG6kos5i:21 a=qSlhRE2WdKkL1bCx:21 a=pGLkceISAAAA:8 a=6HH8whXj0N_QDrDaFqUA:9 a=9B8L_hzzQMlSUNCF_EAA:7 a=BNOowH7FmJ04tC5O8mrooxuVBR4A:4 a=MSl-tDqOz04A:10 a=EzXvWhQp4_cA:10 a=rPkcCx1H5rrOSfN0dPC7kw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.167.5 Received: from [174.110.167.5] ([174.110.167.5:49331] helo=EdPC) by cdptpa-oedge01.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 01/ED-29299-F9C7E8C4; Mon, 13 Sep 2010 19:33:51 +0000 Message-ID: <2A4E7EA9467F4B0BA17837CA7BA090FA@EdPC> From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Scheduled hose replacement Date: Mon, 13 Sep 2010 15:33:45 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002D_01CB5359.0D9BA510" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_002D_01CB5359.0D9BA510 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 'Frad not Dave, My SS radiator hoses (AN-16) have over 10 years on them - no = replacement, no leaks (so far). However, were I to do it again, I would = probably not go SS due to cost and weight - but reliability has been = absolutely great. Ed Edward L. Anderson Anderson Electronic Enterprises LLC 305 Reefton Road Weddington, NC 28104 http://www.andersonee.com http://www.eicommander.com From: David Leonard=20 Sent: Monday, September 13, 2010 3:19 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: Scheduled hose replacement On Mon, Sep 13, 2010 at 11:53 AM, Charlie England = wrote: On 9/13/2010 1:02 PM, David Leonard wrote: *The radiator manufacturer will have a maximum number based on = how=20 stiff the flat sided tubes are. Too much pressure rounds those tubes and then pulls them loose from the fins when pressure is removed. Also the rounded tubes slow airflow through the = radiator. * *Racing radiators tend to have higher pressure ratings than auto radiators. * *Most racers run 16 to 22 pound caps. Higher pressure means = higher boiling temp for the coolant. Also more stress on the connections. With a 2" hose and 22 pounds you have just about 70 pounds trying to pull the hose off of the fitting. With silicone hose and safety wired clamps it would not be a factor. That does not include Chinese replica clamps. Just real American made name brand clamps. You can also use real aircraft quality clamps already drilled for safety wire. * *Many modern cars use no pressure cap. Just a sealing filler cap on a make up bottle.* *An air space above the coolant level provides a volume of air to compress to control the pressure. If the moron at the gas station fills that bottle all the way up while reading the message on the bottle not to fill above this line,* *the end tank will blow off of the radiator just like on my = wife's car. * ** *The 22 pound cap is middle ground, a bit more insurance, not likely to hurt the radiator. * ** *I use 22 pounds. Distilled water with 10% glycol and either Redline Water Wetter or 1/2 teaspoon full of dish washing detergent. It is gentle on the hands. Never a problem since = 1980.* *Lynn E. Hanover* Hey Lynn and the rest of you smart guys, What is your opinion on = scheduled hose replacement? My plane has been flying for 6 years now = and I just finished the annual. I decided that 6 years was long enough = on some of my radiator hose and decided to replace it. In particular, I = ordered up the AN-16 steel braided hose (Earls Perform-o-flex) for my = coolant out line but I just couldn't bear the thought of cutting and = fitting that stuff and hoping I don't get leaks or damage the AN hose = fittings or cut my fingers to shreds. So I decided the current hoses = were good for another year. Maybe a justification... Opinions on scheduled replacement of SS hose? --=20 David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net I would copy the guy with the most trouble free hours on his coolant = hoses. :-) Charlie -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html Nice Charlie, For braided SS in aircraft use, that might be me.. Guess I just keep = going until I land on another highway... ;-) --=20 David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net ------=_NextPart_000_002D_01CB5359.0D9BA510 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
'Frad not Dave,
 
My SS radiator hoses (AN-16) have over 10 years = on them -=20 no replacement, no leaks (so far).  However, were I to do it again, = I would=20 probably not go SS due to cost and weight - but reliability has been = absolutely=20 great.
 
Ed
Edward L. Anderson
Anderson Electronic = Enterprises=20 LLC
305 Reefton Road
Weddington, NC 28104
http://www.andersonee.com
http://www.eicommander.com

Sent: Monday, September 13, 2010 3:19 PM
Subject: [FlyRotary] Re: Scheduled hose=20 replacement



On Mon, Sep 13, 2010 at 11:53 AM, Charlie = England <ceengland@bellsouth.net>=20 wrote:
 On 9/13/2010 1:02 PM, David Leonard wrote:


   *The radiator manufacturer = will have=20 a maximum number based on how=20

   stiff the flat sided tubes are. Too = much=20 pressure rounds those
   tubes and then pulls them = loose from=20 the fins when pressure is
   removed. Also the rounded = tubes=20 slow airflow through the radiator. *
   *Racing = radiators tend=20 to have higher pressure ratings than auto
   radiators. = *
   *Most racers run 16 to 22 pound caps. Higher = pressure=20 means higher
   boiling temp for the coolant. =  Also more=20 stress on the
   connections. With a 2" hose and 22 = pounds you=20 have just about 70
   pounds trying to pull the hose = off of the=20 fitting. With silicone
   hose and safety wired clamps = it would=20 not be a factor. That does
   not include Chinese = replica=20 clamps. Just real American made name
   brand clamps. = You can=20 also use real aircraft quality clamps
   already = drilled for=20 safety wire. *
   *Many modern cars use no pressure = cap. Just a=20 sealing filler cap
   on a make up bottle.*
  =  *An=20 air space above the coolant level provides a volume of air = to
 =20  compress to control the pressure. If the moron at the gas=20 station
   fills that bottle all the way up while = reading the=20 message on the
   bottle not to fill above this=20 line,*
   *the end tank will blow off of the radiator = just like=20 on my wife's
   car. *
   **
  =  *The=20 22 pound cap is middle ground, a bit more insurance, not
 =20  likely to hurt the radiator. *
   **
  =  *I=20 use 22 pounds. Distilled water with 10% glycol and either
 =20  Redline Water Wetter or 1/2 teaspoon full of dish = washing
 =20  detergent. It is gentle on the hands. Never a problem since=20 1980.*
   *Lynn E. Hanover*


Hey Lynn and the = rest of=20 you smart guys, What is your opinion on scheduled hose replacement? =  My=20 plane has been flying for 6 years now and I just finished the = annual.=20  I decided that 6 years was long enough on some of my radiator = hose and=20 decided to replace it.  In particular, I ordered up the AN-16 = steel=20 braided hose (Earls Perform-o-flex)  for my coolant out line = but I just=20 couldn't bear the thought of cutting and fitting that stuff and = hoping I=20 don't get leaks or damage the AN hose fittings or cut my fingers to = shreds.=20  So I decided the current hoses were good for another year. =  Maybe=20 a justification...

Opinions on scheduled replacement of SS=20 hose?

--
David Leonard

Turbo Rotary RV-6 = N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
I= would=20 copy the guy with the most trouble free hours on his coolant hoses.=20 :-)

Charlie

--
Homepage: =  http://www.flyrotary.com/
Archive and UnSub: =   http://mail.lancaironline.net:81/lists/flyrotary/List.htm= l



Nice Charlie,

For braided SS in aircraft use, that might be me..  Guess I = just keep=20 going until I land on another highway...  ;-)
--
David=20 Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.nethttp://RotaryRoster.net
------=_NextPart_000_002D_01CB5359.0D9BA510--