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( [65.100.75.137]) by mx.gmail.com with ESMTP id e14sm465131qbe.2006.02.01.10.23.31; Wed, 01 Feb 2006 10:23:32 -0800 (PST) Mime-Version: 1.0 (Apple Message framework v623) In-Reply-To: References: Content-Type: multipart/alternative; boundary=Apple-Mail-1--550266272 Message-Id: <2f60476489fe9ef936647565c3f5e6fd@gmail.com> From: Hans Conser Subject: Re: [FlyRotary] Re: Cooling air inlets Date: Wed, 1 Feb 2006 11:23:26 -0700 To: "Rotary motors in aircraft" X-Mailer: Apple Mail (2.623) --Apple-Mail-1--550266272 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1; format=flowed Is that a Moroso oil accumulator Tracey? Hans On Feb 1, 2006, at 10:23 AM, Tracy Crook wrote: > Not that the purpose built cowl will not work but I felt that fitting=20= > and optimizing all the systems was more straight forward and easier=20 > with the=A0'classic' cowl.=A0 Not shown in the picture is the intake=20= > manifold which is similar to the one in my RV-4.=A0 It would stick out=20= > the side of the purpose built cowl.=A0 This is just one of many=20 > factors.=A0=A0 Also, I think Will James who makes the purpose built = cowl=20 > was still working out the rights to market it (it was originally for=20= > Powersport) when I got mine. > =A0 > Tracy >> ----- Original Message ----- >> From: Greg@itmack >> To: Rotary motors in aircraft >> Sent: Tuesday, January 31, 2006 4:59 PM >> Subject: [FlyRotary] Re: Cooling air inlets >> >> Tracy, just wondering why you went for the "classic" cowl instead of=20= >> the Sam James=A0purpose built rotary cowl? >> =A0 >> Greg >>> >>> Hi John, >>> There are no ballpark figures, only arguments about them =A0: ) >>> =A0 >>> FWIW, I am using a Sam James cowl with 5" round inlets and=A0fervently= =20 >>> hope that they will cool my 20B. >>> =A0 >>> Tracy=A0 (dangerously close to first engine start) >>>> ----- Original Message ----- >>>> From: John Downing >>>> To: Rotary motors in aircraft >>>> Sent: Sunday, January 29, 2006 8:06 PM >>>> Subject: [FlyRotary] Cooling air inlets >>>> >>>> I am modifying the cowling for the Tailwind.=A0 The air inlet holes=20= >>>> are 2 5/8"s x 7.5"s for a total of=A0 app. 21.5 sq. inches.=A0x 2 = for a=20 >>>> total of 43. =A0I am looking at a 5 inch round hole which is the = size=20 >>>> that Same James is using for the=A0O-320's, =A0which would make the=20= >>>> diffusers easier to fabricate.=A0 The round 5 " hole has=20 >>>> approximately 19.3 sq inches=A0x 2 for 38.6 sq. inches total, if my=20= >>>> math is right.=A0 Is this a ball park figure for the water coolers=20= >>>> (GM evaporators) on the Mazda 13 B engine.=A0 JohnD<20B = update.jpg>-- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ --Apple-Mail-1--550266272 Content-Transfer-Encoding: quoted-printable Content-Type: text/enriched; charset=ISO-8859-1 Is that a Moroso oil accumulator Tracey? Hans On Feb 1, 2006, at 10:23 AM, Tracy Crook wrote: VerdanaNot that the purpose built cowl will not work but I felt that fitting and optimizing all the systems was more straight forward and easier with the=A0'classic' cowl.=A0 Not shown in the picture is the intake manifold which is similar to the one in my RV-4.=A0 It would stick out the side of the purpose built cowl.=A0 This is just one of many factors.=A0=A0 = Also, I think Will James who makes the purpose built cowl was still working out the rights to market it (it was originally for Powersport) when I got mine. = Verdana=A0 = VerdanaTracy Arial----- Original Message ----- = ArialFrom:Arial = 0000,0000,EEEEGreg@itma= ck = ArialTo:Arial 0000,0000,EEEERotary motors in aircraft = = ArialSent:Arial Tuesday, January 31, 2006 4:59 PM = ArialSubject:Arial [FlyRotary] Re: Cooling air inlets ArialTracy, just wondering why you went for the "classic" cowl instead of the Sam James=A0purpose built rotary cowl? = Verdana=A0 = ArialGreg VerdanaHi = John, VerdanaThere are no ballpark figures, only arguments about them =A0: ) = Verdana=A0 VerdanaFWIW, I am using a Sam James cowl with 5" round inlets and=A0fervently hope that they will cool my 20B. = Verdana=A0 VerdanaTracy=A0 (dangerously close to first engine start) Arial----- Original Message ----- = ArialFrom:Arial 0000,0000,EEEEJohn Downing = = ArialTo:Arial 0000,0000,EEEERotary motors in aircraft = = ArialSent:Arial Sunday, January 29, 2006 8:06 PM = ArialSubject:Arial [FlyRotary] Cooling air inlets ArialI am modifying the cowling for the Tailwind.=A0 The air inlet holes are 2 5/8"s x 7.5"s for a total of=A0 app. 21.5 sq. inches.=A0x 2 for a total of 43. =A0I am looking at = a 5 inch round hole which is the size that Same James is using for the=A0O-320's, =A0which would make the diffusers easier to fabricate.=A0 = The round 5 " hole has approximately 19.3 sq inches=A0x 2 for 38.6 sq. inches total, if my math is right.=A0 Is this a ball park figure for the water coolers (GM evaporators) on the Mazda 13 B engine.=A0 JohnD<<20B update.jpg>-- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ = --Apple-Mail-1--550266272--