X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta13.emeryville.ca.mail.comcast.net ([76.96.27.243] verified) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTP id 5738486 for flyrotary@lancaironline.net; Fri, 31 Aug 2012 12:59:31 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.27.243; envelope-from=hoursaway1@comcast.net Received: from omta06.emeryville.ca.mail.comcast.net ([76.96.30.51]) by qmta13.emeryville.ca.mail.comcast.net with comcast id tPnm1j00316AWCUADUywg8; Fri, 31 Aug 2012 16:58:56 +0000 Received: from sz0081.ev.mail.comcast.net ([76.96.40.138]) by omta06.emeryville.ca.mail.comcast.net with comcast id tUyw1j0042yr1eL8SUywlW; Fri, 31 Aug 2012 16:58:56 +0000 Date: Fri, 31 Aug 2012 16:58:56 +0000 (UTC) From: hoursaway1@comcast.net To: Rotary motors in aircraft Message-ID: <1051753661.1214493.1346432336203.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_1214492_1919452522.1346432336202" X-Originating-IP: [::ffff:68.77.108.99] X-Mailer: Zimbra 6.0.13_GA_2944 (ZimbraWebClient - [unknown] (Win)/6.0.13_GA_2944) ------=_Part_1214492_1919452522.1346432336202 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable You know Bill I never even thought of that area as a air bypass but it does= look like a leak, the Lyc. guys kind of ignore it , but then again the air= would pass right down the crank case for them, outside there baffling.=C2= =A0 David.=20 ----- Original Message ----- From: "Bill Bradburry" =20 To: "Rotary motors in aircraft" =20 Sent: Friday, August 31, 2012 12:25:29 PM=20 Subject: [FlyRotary] Re: FIRST FLIGHT N655HC=20 I didn=E2=80=99t see any input when I last asked this question, so I will t= ry now that we are again talking about cooling.=20 How are you sealing around the PSRU outlet on the cowl?=C2=A0 I am talking = about the area behind the spinner.=C2=A0 This area allows air to enter behi= nd the heat exchangers and it seems to me that it would adversely affect co= oling.=C2=A0 This area is open on my plane because I haven=E2=80=99t figure= d out how to seal it.=C2=A0 I am wondering what others have done?=20 Bill B=20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Beh= alf 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 Congratulations David,=20 I would completely seal any leaks around the sides or anyplace else that co= uld leak between duct inlet and radiator.=C2=A0 I read someplace that a 1/2= "square hole could cost you 20% of your cooling effectiveness.=C2=A0=20 A gent who once sold Subaru engine installations tried just sticking the ra= diator in back of the opening (no ducting) - did not cool.=20 Yes, I find that getting the airflow up as soon as safely possible will hel= p a great deal in keeping temps down and bring them back down quickly.=C2= =A0 My magic airspeed after take off is 120 MPH IAS then a 140 IAS for clim= bout.=20 Looking forward to more reports=20 Ed=20 From: Ernest Chrisltey=20 Sent: Friday, August 31, 2012 11:01 AM=20 To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: FIRST FLIGHT N655HC=20 Congratulations, David.=C2=A0 I hope to be following you soon.=20 Are you able to cool on the ground?=C2=A0 What did you do to improve the co= oling between the two flights?=20 On 08/30/2012 10:48 PM, hoursaway1@comcast.net wrote:=20 Thanks Mark, it was kind of anti-climatic for the others on the ground beca= use they already saw that last month, but for me seeing the temps coming do= wn at about the same stage as Terry saw them still climbing was comforting.= =C2=A0 I'm setting up a video camera to record the panel so I can focus on = flying for now until I get more comfortable.=C2=A0=C2=A0We have a 100 mile = radius to work with & I asked for &=C2=A0was granted a crew member during t= he flights that=C2=A0computer tuning will be worked on.=C2=A0 Tryed to get = a stewardess also but FAA said no.=C2=A0 ????=C2=A0=C2=A0=C2=A0 Yes I read = Ed's procedure for takeoff & our sys. is very similar so will use for next = flights.=C2=A0=C2=A0Terry is a member of our EAA Chapter 55 here in Mason M= I,=C2=A0 his dad just flew his 400 th Young Eagle.=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (=C2=A0 where is that stewar= dess with my Margarita )=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 David.=20 ----- Original Message ----- From: "Mark Steitle" =20 To: "Rotary motors in aircraft" =20 Sent: Thursday, August 30, 2012 7:44:53 PM=20 Subject: [FlyRotary] Re: FIRST FLIGHT N655HC=20 David,=C2=A0=20 Congrats!!! =C2=A0Job well done. =C2=A0Terry Lutz... WOW! =C2=A0=20 What was the OAT? =C2=A0I start to get nervous when my coolant temp goes ab= ove 200 F. =C2=A0No reason to climb at WOT if not needed and OAT is high. = =C2=A0=20 Mark S. =C2=A0=C2=A0=20 On Thu, Aug 30, 2012 at 6:07 PM, < hoursaway1@comcast.net > wrote:=20 First flight for me anyhow not for the aircraft, Terry Lutz ( AKA;;=C2=A0 w= orld renowned professional test pilot, flew in from France to do the First,= First flight )=20 Temps went;;=C2=A0=C2=A0 coolant 221 F=C2=A0 max,=C2=A0 oil 210 F=C2=A0 max= ,=C2=A0 on full throttle clime out up to 2000 ft., powered back from 6300 r= pm to 5000 rpm/135 mph indicated, push the nose over to level off, pulled p= ower back to 4500 rpm=C2=A0 ( made no prop pitch changes at this time )=C2= =A0=C2=A0 temps went down to;;=C2=A0=C2=A0 coolant 195 F,=C2=A0 oil 190 F,= =C2=A0 this is without therm. & bypass blocked, also would like comments ab= out 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.=C2=A0=C2=A0 David=C2=A0 R. Cook=C2= =A0 RV6A=C2=A0 Rotary.=20 From: "Joseph Pirch" < pirch@sbcglobal.net >=20 To: hoursaway1@comcast.net , "rv man2010" < rv.man2010@hotmail.com >=20 Sent: Wednesday, August 29, 2012 8:40:58 PM=20 [image/jpeg:photo.JPG]=20 Sent from my iPad=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 ------=_Part_1214492_1919452522.1346432336202 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <= div style=3D'font-family: Arial; font-size: 12pt; color: #000000'>You know = Bill I never even thought of that area as a air bypass but it does look lik= e a leak, the Lyc. guys kind of ignore it , but then again the air would pa= ss right down the crank case for them, outside there baffling.  David.=

From: "Bill Bradburry" <bbradburry@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sen= t: Friday, August 31, 2012 12:25:29 PM
Subject: [FlyRotary] R= e: FIRST FLIGHT N655HC

I didn=E2=80=99t see = any input when I last asked this question, so I will try now that we are ag= ain talking about cooling.

 <= /P>

How are you sealing a= round the PSRU outlet on the cowl?  I am talking about the area behind= the spinner.  This area allows air to enter behind the heat exchanger= s and it seems to me that it would adversely affect cooling.  This are= a is open on my plane because I haven=E2=80=99t figured out how to seal it.=   I am wondering what others have done?

 <= /P>

Bill B<= /P>

 <= /P>

From:<= SPAN style=3D"FONT-FAMILY: Tahoma; COLOR: windowtext; FONT-SIZE: 10pt"> Rot= ary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Friday, August 31, 2012 11:56 AMTo: Rotary motors in airc= raft
Subject: [FlyRotary= ] Re: FIRST FLIGHT N655HC

=  

Congratulations David,

=  

I would completely seal any leaks = around the sides or anyplace else that could leak between duct inlet and ra= diator.  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 sticking the radiator in back of the opening (no = ducting) - did not cool.

=  

Yes, I find that getting the airfl= ow up as soon as safely possible will help a great deal in keeping temps do= wn and bring them back down quickly.  My magic airspeed after take off= is 120 MPH IAS then a 140 IAS for climbout.

=  

Looking forward to more reports

=  

Ed

=  

=  

 

From:<= SPAN style=3D"FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"> Ernest Chrisltey=

Sent:<= SPAN style=3D"FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"> Friday, August 31, 201= 2 11:01 AM

Subject: [FlyRotary] Re: FIR= ST FLIGHT N655HC

=  

= Congratulations, David.  I hope to be = following you soon.

Are you able to cool on the ground?  What d= id you do to improve the cooling between the two flights?


On 08/= 30/2012 10:48 PM, hoursaway1@comcast.net wrote:

Thank= s Mark, it was kind of anti-climatic for the others on the ground because t= hey already saw that last month, but for me seeing the temps coming down at= about the same stage as Terry saw them still climbing was comforting. = ; I'm setting up a video camera to record the panel so I can focus on flyin= g for now until I get more comfortable.  We have a 100 mile radiu= s to work with & I asked for & was granted a crew member durin= g the flights that computer tuning will be worked on.  Tryed to g= et a stewardess also but FAA said no.  ????    Yes I re= ad Ed's procedure for takeoff & our sys. is very similar so will use fo= r next flights.  Terry is a member of our EAA Chapter 55 here in = Mason MI,  his dad just flew his 400 th Young Eagle.   =             &nb= sp;            =             &nb= sp;          (  where is that = stewardess with my Margarita )       &nb= sp;  David.

From: = "Mark Stei= tle" <msteitle@gma= il.com>
To: "Rota= ry motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, August 30, 2012 7:44:53 PM
Subject: [FlyRotary] Re: FIRS= T FLIGHT N655HC

David, 

 

Congrats!!!  Job well done. &= nbsp;Terry Lutz... WOW!  

 

What was the OAT?  I start to= get nervous when my coolant temp goes above 200 F.  No reason to clim= b at WOT if not needed and OAT is high.  

 

Mark = S.   

On Thu, Aug 30, 2012 at 6:07 PM, &= lt;hoursaway1@com= cast.net> wrote:

First flight for me anyhow not for= the aircraft, Terry Lutz ( AKA;;  world renowned professional test pi= lot, flew in from France to do the First, First flight )
Temps went;;&nb= sp;  coolant 221 F  max,  oil 210 F  max,  on full= throttle clime out up to 2000 ft., powered back from 6300 rpm to 5000 rpm/= 135 mph indicated, push the nose over to level off, pulled power back to 45= 00 rpm  ( made no prop pitch changes at this time )   temps = went down to;;   coolant 195 F,  oil 190 F,  this is wi= thout therm. & bypass blocked, also would like comments about sealing a= round sides of both radiators, we saw the extra fins there so we allowed ai= r to pass through that area, may install a temp seal & recheck data poi= nts next flight. Then possibly install venting openings in bottom of cowl t= o let more airflow out quicker.   David  R. Cook  RV6A&= nbsp; Rotary.

From: = "Joseph Pi= rch" <pirch@sbcgl= obal.net>
To: hoursaway1@comcast.n= et, "rv man2010" <rv.man2010@hotmail.com>
Sent: Wednesday, August 29, 2012 8:40:58 PM




[image/jpeg:photo.JPG]




Sent 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: 08/31/12

------=_Part_1214492_1919452522.1346432336202--