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From: david mccandless <daval@iprimus.com.au>
Subject: Re: [FlyRotary] Re: cowl openings for water radiators
Date: Wed, 28 Feb 2007 17:07:17 +0900
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

Excuse me,
  I mean "ducts". Did you slit the ducts....
Dave McC
On 28, Feb , at 1:15 PM, david mccandless wrote:

> Hi Ed,
> did you slit the cowls on the mould to remove them? If not, how did=20
> you get the cured cowls off the mould?
> BR, Dave McC
>
> On 27, Feb , at 5:39 AM, Ed Anderson wrote:
>
>> John, don't know if these photos will help.=A0 But, like you I only=20=

>> have between 3 and 6" of duct distance on the radiators.=A0 You =
should=20
>> do Ok with 20 sq inch on each opening with a good diffuser/duct.=A0=20=

>> Attached are some photos of my current ducts.=A0 The openings are 18 =
sq=20
>> inches each.=A0 I have had one opening down to as little as 10 square=20=

>> inches - but that was a bit marginal - so opened it back up.=A0 I =
have=20
>> a generous exit area for the hot air including a larger 4" x 12"=20
>> bottom opening as well as louvers on each side of the cowl.=A0 So you=20=

>> mileage could vary - but Tracy has essentially the same size opening=20=

>> as well as several others.
>> =A0
>> Ed\
> --
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