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Return-Path: <13brv3@bellsouth.net> Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 389109 for flyrotary@lancaironline.net; Wed, 01 Sep 2004 19:26:00 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.71; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040901232530.CQAE1796.imf23aec.mail.bellsouth.net@rd> for ; Wed, 1 Sep 2004 19:25:30 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: foam-sicle (new ducts) Date: Wed, 1 Sep 2004 18:23:35 -0500 Message-ID: <000001c4907a$b43ef050$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C49050.CB68E850" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C49050.CB68E850 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Very good job Rusty. I hope you are using Rutan Bid glass cloth for the glassing. Bulent =20 =20 If that's what West Marine sells, I'm using it :-) =20 =20 I just looked up the description of "bid" on the Spruce page, and can't = say that I can see any difference between that, and normal cloth (e-glass?). = I cut the cloth on a 45, and usually have pretty good luck going around corners, but I'm sure "bid" is probably better, and certainly my = technique could stand some improvement. I'm using the lightest cloth I could = find, at 6 oz, but wish it was a little lighter for the initial layers. =20 =20 Since there are two ducts, you can surmise that I decided not to add = another scoop to the cowl. I'm going to have one as an air box on the TB, with = the air horns inside. The other goes on the bottom of the right radiator, = where the old hoses attached. By the time I'm done, there will be about a 12 = sq in opening in the radiator duct where the new inlet duct will be added. = The two new ducts will be joined by 3" ID tubing, CEET for now, perhaps something smooth walled later. 3" is just HUGE though, so it's hard to imagine there will be any restriction now. I may not get quite as much = ram air effect as I could with a dedicated scoop, but this system give me = the option of adding a scoop in a convenient location later, while still = using the air box that I'm making. =20 =20 Cheers, Rusty (Frances turn North now)=20 ------=_NextPart_000_0001_01C49050.CB68E850 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Very good job = Rusty. I=20 hope you are using Rutan Bid glass cloth for the=20 glassing.
Bulent

If that's=20 what West Marine sells, I'm using it :-) =

I just looked=20 up the description of "bid" on the Spruce page, and can't say that I can = see any=20 difference between that, and normal cloth (e-glass?). = I cut the=20 cloth on a 45, and usually have pretty good luck going around corners, = but I'm=20 sure "bid" is probably better, and certainly my technique could stand = some=20 improvement. I'm using the lightest cloth I could find, at 6 = oz, but=20 wish it was a little lighter for the initial=20 layers.

Since there=20 are two ducts, you can surmise that I decided not to add = another scoop to=20 the cowl. I'm going to have one as an air box on the TB, with = the air=20 horns inside. The other goes on the bottom of the right=20 radiator, where the old hoses attached. By the time I'm done, = there=20 will be about a 12 sq in opening in the radiator duct where = the new=20 inlet duct will be added. The two new ducts will = be joined by 3"=20 ID tubing, CEET for now, perhaps something smooth walled = later. 3"=20 is just HUGE though, so it's hard to imagine there will be any = restriction=20 now. I may not get quite as much ram air effect as I could = with a=20 dedicated scoop, but this system give me the option of adding a = scoop in a=20 convenient location later, while still using the air box that I'm=20 making.

Cheers,

Rusty=20 (Frances turn North now)

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