X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from poplet2.per.eftel.com ([203.24.100.45] verified) by logan.com (CommuniGate Pro SMTP 5.3.2) with ESMTP id 4142394 for flyrotary@lancaironline.net; Mon, 01 Mar 2010 16:19:28 -0500 Received-SPF: none receiver=logan.com; client-ip=203.24.100.45; envelope-from=lendich@aanet.com.au Received: from sv1-1.aanet.com.au (mail.aanet.com.au [203.24.100.34]) by poplet2.per.eftel.com (Postfix) with ESMTP id DC59E173915 for ; Tue, 2 Mar 2010 05:18:48 +0800 (WST) Received: from ownerf1fc517b8 (203.171.92.134.static.rev.aanet.com.au [203.171.92.134]) by sv1-1.aanet.com.au (Postfix) with SMTP id 7EB16BEC026 for ; Tue, 2 Mar 2010 05:18:46 +0800 (WST) Message-ID: From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Ridge vent material Date: Tue, 2 Mar 2010 07:18:48 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01CAB9D8.9A2FAA50" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-Antivirus: avast! (VPS 100301-0, 03/01/2010), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_000B_01CAB9D8.9A2FAA50 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Ben, It papers to me it's not so much what Tracy used buy why he used it He = has stated a couple of times, it was to tighten the back edge, to = restrict flow/ create more pressure, in the back of the duct to allow = air to flow more evenly through the rest of the Radiator. Although the = material is porous, I doubt very much if the air there( behind) is doing = anything other than creating pressure with perhaps some measure of = evening out the overall pressure. Although Tracy used the bell shaped calculations and shape majorly = flattened out, it more resembles a wedge shaped duct to me, especially = with that later modification. Or we might call it a heavily flattened = bell shaped/ wedge back, hybrid duct. George ( down under) I should have googled it first to provide a link. Soory guys. = http://www.tamko.com/ProductDisplayPage/tabid/53/ControlType/productDispl= ay/itemid/172/Default.aspx Ben Haas www.haaspowerair.com =20 -------------------------------------------------------------------------= ----- To: flyrotary@lancaironline.net From: stol83001@live.com Date: Mon, 1 Mar 2010 13:04:31 -0700 Subject: [FlyRotary] Re: Ridge vent material The product Tracy is talking about is used in venting ridges.. it is = called Roll venting and comes in 40 foot rolls. =20 Ben Haas www.haaspowerair.com =20 -------------------------------------------------------------------------= ----- To: flyrotary@lancaironline.net Date: Mon, 1 Mar 2010 06:33:11 -0800 From: tracy@rotaryaviation.com Subject: [FlyRotary] Re: Ridge vent material Hi Scott, I replied to Kevin's comment on the ridge vent material. It is = very different from what you or Kevin are talking about. See comments = on reply to Kevin. Tracy On Sun, Feb 28, 2010 at 7:43 PM, wrote: Just quiet I guess. For filler, I can offer that I've been in the shop working on my oil = cooler diffuser, sanding, smoothing in microlight, sanding, painting. = You all know the drill. It's hard to spread filler smoothly on the = inside of the duct where there isn't really any room for my hand, let = alone a spreader, or later a sanding block! I've had good test runs since I bit the bullet and committed my time = to making quality scoop and diffuser assemblies. I just hope they work = as well when I continue to test @ higher power setting, and eventually = fly it! Tracy; when you refered to 'roof ridge material' as applied to the = inside of the cooler diffuser? did you mean the aluminum sheet with = small louvers? When I blow sanding dust out thru the cooler and duct in = assembly, using compressed air, most of the dust seems to pass out the = aft end of the cooler. I know microlite filler dust is heavier than air, = but I think it would be a fair representation of airflow when propelled = with the air nozzle. So I'm taking what I understand you to have said, = and may try to slow down the air at the back so the air flow will be = more evenly distributed thru the oil cooler. I made a more pronounced ramp in the radiator duct after reading = about it in this forum, but I had already made the oil cooler diffuser. = I might yet carve out the back and build in that ramp!! but for now I = would like to know what that material is??? Scott E -----Original Message----- From: Thomas Mann To: Rotary motors in aircraft Sent: Sun, Feb 21, 2010 4:03 pm Subject: [FlyRotary] Re: Test; no connectivity for two days One word: Olympics From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of DLOMHEIM@aol.com Sent: Sunday, February 21, 2010 5:52 PM To: Rotary motors in aircraft Subject: [FlyRotary] Test; no connectivity for two days When I go to the newsgroup list it hasn't updated in two days now; = so don't know if the server died or if the list is just really quiet... Doug Lomheim 9A; OK City, OK -------------------------------------------------------------------------= ----- Hotmail: Free, trusted and rich email service. Get it now.=20 -------------------------------------------------------------------------= ----- Hotmail: Trusted email with Microsoft=92s powerful SPAM protection. = Sign up now. ------=_NextPart_000_000B_01CAB9D8.9A2FAA50 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Ben,
It papers to me it's not so much what = Tracy used buy=20 why he used it He has stated a couple of times, it was to tighten the = back edge,=20 to restrict flow/ create more pressure, in the back of the duct to allow = air to=20 flow more evenly through the rest of the Radiator. Although the material = is=20 porous, I doubt very much if the air there( behind) is doing anything = other than=20 creating pressure with perhaps some measure of evening out the overall=20 pressure.
Although Tracy used the bell shaped calculations = and shape=20 majorly flattened out, it more resembles a wedge shaped duct to me, = especially=20 with that later modification. Or we might call it a heavily = flattened=20 bell shaped/ wedge back, hybrid duct.
George ( down under)
I=20 should have googled it first to provide a link.  Soory = guys.
http://www.tamko.com/ProductDisplayPa= ge/tabid/53/ControlType/productDisplay/itemid/172/Default.aspx
Ben Haas
www.haaspowerair.com
<= BR>

 
To: flyrotary@lancaironline.net
From:=20 stol83001@live.com
Date: = Mon, 1 Mar=20 2010 13:04:31 -0700
Subject: [FlyRotary] Re: Ridge vent = material

The product Tracy is talking about is used in venting ridges.. it is = called=20 Roll venting and comes in 40 foot rolls. 


Ben=20 Haas
www.haaspowerair.com



 
To: flyrotary@lancaironline.net
Date: Mon, 1 Mar 2010 06:33:11=20 -0800
From: tracy@rotaryaviation.com
Subject: [FlyRotary] Re: = Ridge vent=20 material

Hi Scott,
   I replied to Kevin's comment on the ridge vent=20 material.  It is very different from what you or Kevin are = talking=20 about.   See comments on reply to Kevin.
 
Tracy

On Sun, Feb 28, 2010 at 7:43 PM, <shipchief@aol.com> = wrote:
Just quiet I guess.
For filler, I can offer that I've been in the shop working on = my oil=20 cooler diffuser, sanding, smoothing in microlight, = sanding,=20 painting. You all know the drill. It's hard to spread filler = smoothly on the=20 inside of the duct where there isn't really any room for my hand, = let alone=20 a spreader, or later a sanding block!
I've had good test runs since I bit the bullet and committed my = time to=20 making quality scoop and diffuser assemblies. I just hope they work = as well=20 when I continue to test @ higher power setting, and eventually fly = it!
Tracy; when you refered to 'roof ridge material' as applied to = the=20 inside of the cooler diffuser? did you mean the aluminum sheet with=20 small louvers? When I blow sanding dust out thru the cooler and = duct in=20 assembly, using compressed air, most of the dust seems to pass out = the aft=20 end of the cooler. I know microlite filler dust is heavier than air, = but I=20 think it would be a fair representation  of airflow when = propelled with=20 the air nozzle. So I'm taking what I understand you to have = said, and=20 may try to slow down the air at the back so the air flow will be = more evenly=20 distributed thru the oil cooler.
I made a more pronounced ramp in the radiator duct after = reading about=20 it in this forum, but I had already made the oil cooler diffuser. I = might=20 yet carve out the back and build in that ramp!! but for now I would = like to=20 know what that material is???
Scott E


-----Original=20 Message-----
From: Thomas Mann <tmann@n200lz.com>
To: = Rotary motors=20 in aircraft <flyrotary@lancaironline.net>
Sent:=20 Sun, Feb 21, 2010 4:03 pm
Subject: [FlyRotary] Re: Test; no = connectivity=20 for two days

One=20 word: Olympics
 
From:=20 Rotary motors in aircraft [mailto:flyrotary@lancaironli= ne.net]=20 On Behalf Of DLOMHEIM@aol.com
Sent: = Sunday,=20 February 21, 2010 5:52 PM
To: Rotary motors in=20 aircraft
Subject: [FlyRotary] Test; no connectivity for = two=20 days
 
When=20 I go to the newsgroup list it hasn't updated in two days now; so = don't know=20 if the server died or if the list is just really = quiet...
 
Doug=20 Lomheim
9A;=20 OK City,=20 = OK


=
Hotmail: Free, trusted and rich email service. Get it = now.
Hotmail: Trusted email with Microsoft=92s powerful SPAM protection. Sign up=20 now. ------=_NextPart_000_000B_01CAB9D8.9A2FAA50--