X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from misav07.sasknet.sk.ca ([142.165.20.171] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2191461 for flyrotary@lancaironline.net; Sat, 21 Jul 2007 13:28:45 -0400 Received-SPF: none receiver=logan.com; client-ip=142.165.20.171; envelope-from=hjjohnson@sasktel.net Received: from bgmpomr1.sasknet.sk.ca ([142.165.72.22]) by misav07 with InterScan Messaging Security Suite; Sat, 21 Jul 2007 11:28:06 -0600 Received: from sasktel.net ([192.168.234.97]) by bgmpomr1.sasknet.sk.ca (SaskTel eMessaging Service) with ESMTP id <0JLJ008VRHUUT310@bgmpomr1.sasknet.sk.ca> for flyrotary@lancaironline.net; Sat, 21 Jul 2007 11:28:06 -0600 (CST) Received: from [192.168.234.25] (Forwarded-For: [71.17.120.171]) by cgmail1.sasknet.sk.ca (mshttpd); Sat, 21 Jul 2007 11:28:06 -0600 Date: Sat, 21 Jul 2007 11:28:06 -0600 From: H & J Johnson Subject: Re: [FlyRotary] Re: Oil cooler inlet To: Rotary motors in aircraft Message-id: MIME-version: 1.0 X-Mailer: Sun Java(tm) System Messenger Express 6.1 HotFix 0.20 (built Feb 27 2006) Content-type: text/html; charset=iso-8859-1 Content-language: en Content-transfer-encoding: quoted-printable Content-disposition: inline X-Accept-Language: en Priority: normal =3CBODY=3E=3CP=3E=3C/P=3E =3CP=3E=3C/P=3E =3CP=3E=3C/P=3E =3CP=3E=26gt=3B Thanks=2C TJ=2E=26nbsp=3B Back to Black =96 below=3A =3C= BR=3E=26gt=3B =3CBR=3E=26gt=3B In deciding where to put the VGs=2C I loo= ked at things with the gear =3CBR=3E=26gt=3B up (Photo =3CBR=3E=26gt=3B = 1)=2E=26nbsp=3B The gear door has a bump=2C and there is some gap around= the =3CBR=3E=26gt=3B door=2E=26nbsp=3B Don=27t =3CBR=3E=26gt=3B know wh= at all this does to BL=2E=26nbsp=3B Ended up putting VG toward the =3CBR= =3E=26gt=3B left side =3CBR=3E=26gt=3B about 26=22 in font of scoop=2C a= nd toward the right side right on the =3CBR=3E=26gt=3B gear door =3CBR=3E= =26gt=3B bump=2E =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CB= R=3E=26gt=3B Seeing your gear leg/wheel fairing I am afraid that your BL= will =3CBR=3E=26gt=3B be rather =3CBR=3E=26gt=3B though to =22repair=22= =2E =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B If the impression is not wrong=2C = the wheelfairing alone shadows =3CBR=3E=26gt=3B about 1/2 of =3CBR=3E=26= gt=3B the inlet=2E=2E=2E=2E =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26= gt=3B =3CBR=3E=26gt=3B With the wheel fairing in the way (and as it is=2C= it will produce =3CBR=3E=26gt=3B some vortex =3CBR=3E=26gt=3B at the ed= ge where the tire is visible =2E=2E=2E=2E) I predict that you =3CBR=3E=26= gt=3B have some =3CBR=3E =26gt=3B rather serious vortex causing trouble at least for half the =3C= BR=3E=26gt=3B intake=2E=2E=2E =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E= =26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26g= t=3B =3CBR=3E=26gt=3B Recommend to to bend=26nbsp=3B like in rev-01=2E A= ll the way closed you will =3CBR=3E=26gt=3B give away=2E =3CBR=3E=26gt=3B= I would start to keep at least 1/4=22 off the core in the corner=2E=2E=2E= =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B Oh=2C= the price of innovation =3A-)=2E =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B You = are going to miss this once you dialed in! =3CBR=3E=26gt=3B =3CBR=3E=26g= t=3B Not a chance!=26nbsp=3B The innovation was putting the cooler in th= e wing =3CBR=3E=26gt=3B root =96 the =3CBR=3E=26gt=3B price is having to= do all this back-fitting=2E =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26= gt=3B =3CBR=3E=26gt=3B I think the photo exaggerates the effect of the g= ear door cover=2E=26nbsp=3B =3CBR=3E=26gt=3B The bump =3CBR=3E=26gt=3B o= nly extends less than 1 =BD=94 below the surface=2C and is nice and =3CB= R=3E=26gt=3B smooth and =3CBR=3E=26gt=3B round=2E=26nbsp=3B The reflecti= ons on its surface make it look different=2C and =3CBR=3E=26gt=3B the ge= ar =3CBR=3E =26gt=3B door is silver (matches the bottom when the gear is down=2C and= the =3CBR=3E=26gt=3B undersurface is white=2E=26nbsp=3B And it is about= a 18=94 in front of the =3CBR=3E=26gt=3B scoop=2E I expect the =3CBR=3E= =26gt=3B flow bends a bit going around and over=2C but likely stays atta= ched=2E =3CBR=3E=26gt=3B Don=92t =3CBR=3E=26gt=3B know what happens at t= he end where the wheel is exposed=2C but that =3CBR=3E=26gt=3B fallsouts= ide the outer end of the scoop=2C though some turbulence =3CBR=3E=26gt=3B= may affect the =3CBR=3E=26gt=3B outer end of the scoop=2E =3CBR=3E=26gt= =3B =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B =3CBR=3E=26gt=3B Al =3CBR=3E=3C/P=3E= =3CP=3E=26nbsp=3B=3C/P=3E =3CP=3EAl=2C two more questions jump to mind when I looked at this pictu= re and the sketch again=2E=3C/P=3E =3CP=3E1-The two scoop=27s seem to almost overlap in the inside corner=2C= is it possible there is=3C/P=3E =3CP=3Esome turbulant flow coming off the lower scoop to cause problems = w/ the =3C/P=3E =3CP=3Ewing scoop=2E=3C/P=3E =3CP=3E2- B was measured w/ Foam on the pipe while C was measured w/out=2E= =2E is it=3C/P=3E =3CP=3Epossible that the foam is your problem here=2C is it causing it t= o not read the=3C/P=3E =3CP=3E=27proper=27 pressure=3F=3C/P=3E =3CP=3EJarrett=3C/P=3E=3C/BODY=3E