X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta11.emeryville.ca.mail.comcast.net ([76.96.27.211] verified) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTP id 5740941 for flyrotary@lancaironline.net; Sun, 02 Sep 2012 11:18:14 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.27.211; envelope-from=hoursaway1@comcast.net Received: from omta08.emeryville.ca.mail.comcast.net ([76.96.30.12]) by qmta11.emeryville.ca.mail.comcast.net with comcast id uEut1j0050FhH24ABFHh6i; Sun, 02 Sep 2012 15:17:41 +0000 Received: from sz0081.ev.mail.comcast.net ([76.96.40.137]) by omta08.emeryville.ca.mail.comcast.net with comcast id uFHg1j00c2xZMJ48UFHgCb; Sun, 02 Sep 2012 15:17:41 +0000 Date: Sun, 2 Sep 2012 15:17:40 +0000 (UTC) From: hoursaway1@comcast.net To: Rotary motors in aircraft Message-ID: <377315043.1268247.1346599060846.JavaMail.root@sz0081a.emeryville.ca.mail.comcast.net> In-Reply-To: Subject: Re: [FlyRotary] Re: FIRST FLIGHT N655HC MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_1268246_1846983604.1346599060845" X-Originating-IP: [::ffff:71.206.108.115] X-Mailer: Zimbra 6.0.13_GA_2944 (ZimbraWebClient - IE8 (Win)/6.0.13_GA_2944) ------=_Part_1268246_1846983604.1346599060845 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On the pusher/rear eng. aircraft the air leaking=C2=A0 " OUT " from around = the spinner/cowl area sounds like it would not be an issue, one more area f= or cowl pressure to escape then just follow the spinner back away.=C2=A0 Da= vid=C2=A0=20 ----- Original Message ----- From: "Ernest Christley" =20 To: "Rotary motors in aircraft" =20 Sent: Friday, August 31, 2012 1:15:37 PM=20 Subject: [FlyRotary] Re: FIRST FLIGHT N655HC=20 The area between the cowl and spinner on my plane is used for intake air. = =C2=A0I seal the cowl to PSRU mount plate with 2" wide silicone baffling th= at is slitted every 1" to be more flexible. =C2=A0Each slit ends in a 1/8th= inch hole I punched to stop it from tearing all the way through. =C2=A0It = is riveted to the cowl.=20 Bill Bradburry wrote:=20 >I didn't see any input when I last asked this question, so I will try now= =20 >that we are again talking about cooling.=20 >=20 >=20 >=20 >How are you sealing around the PSRU outlet on the cowl? =C2=A0I am talking= about=20 >the area behind the spinner. =C2=A0This area allows air to enter behind th= e heat=20 >exchangers and it seems to me that it would adversely affect cooling. =C2= =A0This=20 >area is open on my plane because I haven't figured out how to seal it. =C2= =A0I am=20 >wondering what others have done?=20 >=20 >=20 >=20 >Bill B=20 >=20 >=20 >=20 > =C2=A0_____ =C2=A0=20 >=20 >From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On=20 >Behalf Of Ed Anderson=20 >Sent: Friday, August 31, 2012 11:56 AM=20 >To: Rotary motors in aircraft=20 >Subject: [FlyRotary] Re: FIRST FLIGHT N655HC=20 >=20 >=20 >=20 >Congratulations David,=20 >=20 >=20 >=20 >I would completely seal any leaks around the sides or anyplace else that= =20 >could leak between duct inlet and radiator. =C2=A0I read someplace that a= =20 >1/2"square hole could cost you 20% of your cooling effectiveness. =C2=A0= =20 >=20 >=20 >=20 >A gent who once sold Subaru engine installations tried just sticking the= =20 >radiator in back of the opening (no ducting) - did not cool.=20 >=20 >=20 >=20 >Yes, I find that getting the airflow up as soon as safely possible will he= lp=20 >a great deal in keeping temps down and bring them back down quickly. =C2= =A0My=20 >magic airspeed after take off is 120 MPH IAS then a 140 IAS for climbout.= =20 >=20 >=20 >=20 >Looking forward to more reports=20 >=20 >=20 >=20 >Ed=20 >=20 >=20 >=20 >=20 >=20 >=20 >=20 >From: Ernest Chrisltey =C2=A0=20 >=20 >Sent: Friday, August 31, 2012 11:01 AM=20 >=20 >To: Rotary =C2=A0motors in aircraft= =20 >=20 >Subject: [FlyRotary] Re: FIRST FLIGHT N655HC=20 >=20 >=20 >=20 >Congratulations, David. =C2=A0I hope to be following you soon.=20 >=20 >Are you able to cool on the ground? =C2=A0What did you do to improve the c= ooling=20 >between the two flights?=20 >=20 >=20 >On 08/30/2012 10:48 PM, hoursaway1@comcast.net wrote:=20 >=20 >Thanks Mark, it was kind of anti-climatic for the others on the ground=20 >because they already saw that last month, but for me seeing the temps comi= ng=20 >down at about the same stage as Terry saw them still climbing was=20 >comforting. =C2=A0I'm setting up a video camera to record the panel so I c= an=20 >focus on flying for now until I get more comfortable. =C2=A0We have a 100 = mile=20 >radius to work with & I asked for & was granted a crew member during the= =20 >flights that computer tuning will be worked on. =C2=A0Tryed to get a stewa= rdess=20 >also but FAA said no. =C2=A0???? =C2=A0 =C2=A0Yes I read Ed's procedure fo= r takeoff & our=20 >sys. is very similar so will use for next flights. =C2=A0Terry is a member= of our=20 >EAA Chapter 55 here in Mason MI, =C2=A0his dad just flew his 400 th Young = Eagle.=20 >( =C2=A0where is that stewardess with my Margarita ) =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0David.=20 >=20 >=20 > =C2=A0_____ =C2=A0=20 >=20 >=20 >From: "Mark Steitle" =C2=A0 =20 >To: "Rotary motors in aircraft" =C2=A0= =20 >=20 >Sent: Thursday, August 30, 2012 7:44:53 PM=20 >Subject: [FlyRotary] Re: FIRST FLIGHT N655HC=20 >=20 >David, =C2=A0=20 >=20 >=20 >=20 >Congrats!!! =C2=A0Job well done. =C2=A0Terry Lutz... WOW! =C2=A0=20 >=20 >=20 >=20 >What was the OAT? =C2=A0I start to get nervous when my coolant temp goes a= bove=20 >200 F. =C2=A0No reason to climb at WOT if not needed and OAT is high. =C2= =A0=20 >=20 >=20 >=20 >Mark S. =C2=A0=20 >=20 >On Thu, Aug 30, 2012 at 6:07 PM, wrote:=20 >=20 >First flight for me anyhow not for the aircraft, Terry Lutz ( AKA;; =C2=A0= world=20 >renowned professional test pilot, flew in from France to do the First, Fir= st=20 >flight )=20 >Temps went;; =C2=A0 coolant 221 F =C2=A0max, =C2=A0oil 210 F =C2=A0max, = =C2=A0on full throttle clime=20 >out up to 2000 ft., powered back from 6300 rpm to 5000 rpm/135 mph=20 >indicated, push the nose over to level off, pulled power back to 4500 rpm = =C2=A0(=20 >made no prop pitch changes at this time ) =C2=A0 temps went down to;; =C2= =A0 coolant=20 >195 F, =C2=A0oil 190 F, =C2=A0this is without therm. & bypass blocked, als= o would like=20 >comments about sealing around sides of both radiators, we saw the extra fi= ns=20 >there so we allowed air to pass through that area, may install a temp seal= &=20 >recheck data points next flight. Then possibly install venting openings in= =20 >bottom of cowl to let more airflow out quicker. =C2=A0 David =C2=A0R. Cook= =C2=A0RV6A=20 >Rotary.=20 >=20 >=20 > =C2=A0_____ =C2=A0=20 >=20 >=20 >From: "Joseph Pirch" =20 >To: hoursaway1@comcast.net, "rv man2010" =20 >Sent: Wednesday, August 29, 2012 8:40:58 PM=20 >=20 >=20 >=20 >=20 >=20 >[image/jpeg:photo.JPG]=20 >=20 >=20 >=20 >=20 >Sent from my iPad=20 >=20 >=20 >=20 >=20 >=20 >=20 >=20 >No virus found in this message.=20 >Checked by AVG - www.avg.com=20 >Version: 2012.0.2197 / Virus Database: 2437/5237 - Release Date: 08/31/12= =20 >=20 =C2=A0=20 --=20 Homepage: =C2=A0http://www.flyrotary.com/=20 Archive and UnSub: =C2=A0 http://mail.lancaironline.net:81/lists/flyrotary/= List.html=20 ------=_Part_1268246_1846983604.1346599060845 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <= div style=3D'font-family: Arial; font-size: 12pt; color: #000000'>On the pu= sher/rear eng. aircraft the air leaking  " OUT " from around the spinn= er/cowl area sounds like it would not be an issue, one more area for cowl p= ressure to escape then just follow the spinner back away.  David =

From: "Ernest Christley" <echristley@att.net>
To: "R= otary motors in aircraft" <flyrotary@lancaironline.net>
Sent: <= /B>Friday, August 31, 2012 1:15:37 PM
Subject: [FlyRotary] Re: FI= RST FLIGHT N655HC

The area between the cowl and spinner on my plane = is used for intake air.  I seal the cowl to PSRU mount plate with 2" w= ide silicone baffling that is slitted every 1" to be more flexible.  E= ach slit ends in a 1/8th inch hole I punched to stop it from tearing all th= e way through.  It is riveted to the cowl.



Bill Bradbur= ry <bbradburry@bellsouth.net> wrote:

>I didn't see any inpu= t when I last asked this question, so I will try now
>that we are aga= in talking about cooling.
>
>
>
>How are you seali= ng around the PSRU outlet on the cowl?  I am talking about
>the = area behind the spinner.  This area allows air to enter behind the hea= t
>exchangers and it seems to me that it would adversely affect cooli= ng.  This
>area is open on my plane because I haven't figured ou= t how to seal it.  I am
>wondering what others have done?
>= ;
>
>
>Bill B
>
>
>
>  ___= __  
>
>From: Rotary motors in aircraft [mailto:flyrotary@= lancaironline.net] On
>Behalf Of Ed Anderson
>Sent: Friday, Aug= ust 31, 2012 11:56 AM
>To: Rotary motors in aircraft
>Subject: = [FlyRotary] Re: FIRST FLIGHT N655HC
>
>
>
>Congrat= ulations David,
>
>
>
>I would completely seal any= leaks around the sides or anyplace else that
>could leak between duc= t inlet and radiator.  I read someplace that a
>1/2"square hole = could cost you 20% of your cooling effectiveness.  
>
> >
>A gent who once sold Subaru engine installations tried just s= ticking the
>radiator in back of the opening (no ducting) - did not c= ool.
>
>
>
>Yes, I find that getting the airflow u= p as soon as safely possible will help
>a great deal in keeping temps= down and bring them back down quickly.  My
>magic airspeed afte= r take off is 120 MPH IAS then a 140 IAS for climbout.
>
>
= >
>Looking forward to more reports
>
>
>
>= ;Ed
>
>
>
>
>
>
>
>From:= Ernest Chrisltey <mailto:echristley@att.net>  
>
>S= ent: Friday, August 31, 2012 11:01 AM
>
>To: Rotary <mailto:= flyrotary@lancaironline.net>  motors in aircraft
>
>Su= bject: [FlyRotary] Re: FIRST FLIGHT N655HC
>
>
>
>= Congratulations, David.  I hope to be following you soon.
>
&= gt;Are you able to cool on the ground?  What did you do to improve the= cooling
>between the two flights?
>
>
>On 08/30/20= 12 10:48 PM, hoursaway1@comcast.net wrote:
>
>Thanks Mark, it w= as kind of anti-climatic for the others on the ground
>because they a= lready saw that last month, but for me seeing the temps coming
>down = at about the same stage as Terry saw them still climbing was
>comfort= ing.  I'm setting up a video camera to record the panel so I can
&g= t;focus on flying for now until I get more comfortable.  We have a 100= mile
>radius to work with & I asked for & was granted a crew= member during the
>flights that computer tuning will be worked on. &= nbsp;Tryed to get a stewardess
>also but FAA said no.  ???? &nbs= p;  Yes I read Ed's procedure for takeoff & our
>sys. is ver= y similar so will use for next flights.  Terry is a member of our
&= gt;EAA Chapter 55 here in Mason MI,  his dad just flew his 400 th Youn= g Eagle.
>(  where is that stewardess with my Margarita )  =        David.
>
>
>  _____ &nbs= p;
>
>
>From: "Mark Steitle"  <mailto:msteitle@gm= ail.com> <msteitle@gmail.com>
>To: "Rotary motors in aircraf= t"  <mailto:flyrotary@lancaironline.net>
><flyrotary@la= ncaironline.net>
>Sent: Thursday, August 30, 2012 7:44:53 PM
&g= t;Subject: [FlyRotary] Re: FIRST FLIGHT N655HC
>
>David,  =
>
>
>
>Congrats!!!  Job well done.  Ter= ry Lutz... WOW!  
>
>
>
>What was the OAT? &n= bsp;I start to get nervous when my coolant temp goes above
>200 F. &n= bsp;No reason to climb at WOT if not needed and OAT is high.  
>=
>
>
>Mark S.  
>
>On Thu, Aug 30, 201= 2 at 6:07 PM, <hoursaway1@comcast.net> wrote:
>
>First fl= ight for me anyhow not for the aircraft, Terry Lutz ( AKA;;  world
= >renowned professional test pilot, flew in from France to do the First, = First
>flight )
>Temps went;;   coolant 221 F  max, &= nbsp;oil 210 F  max,  on full throttle clime
>out up to 200= 0 ft., powered back from 6300 rpm to 5000 rpm/135 mph
>indicated, pus= h the nose over to level off, pulled power back to 4500 rpm  (
>= made no prop pitch changes at this time )   temps went down to;;  = ; coolant
>195 F,  oil 190 F,  this is without therm. &= bypass blocked, also would like
>comments about sealing around sides= of both radiators, we saw the extra fins
>there so we allowed air to= pass through that area, may install a temp seal &
>recheck data = points next flight. Then possibly install venting openings in
>bottom= of cowl to let more airflow out quicker.   David  R. Cook  = RV6A
>Rotary.
>
>
>  _____  
>
&= gt;
>From: "Joseph Pirch" <pirch@sbcglobal.net>
>To: hour= saway1@comcast.net, "rv man2010" <rv.man2010@hotmail.com>
>Sent= : Wednesday, August 29, 2012 8:40:58 PM
>
>
>
>
= >
>[image/jpeg:photo.JPG]
>
>
>
>
>S= ent from my iPad
>
>
>
>
>
>
>>No virus found in this message.
>Checked by AVG - www.avg.com>Version: 2012.0.2197 / Virus Database: 2437/5237 - Release Date: 08/3= 1/12
>
 
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