Today's Message Index:
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1. 05:36 AM - Re: cowl heat protection (bill.peyton)
2. 05:46 AM - Re: cowl heat protection (nukeflyboy)
3. 05:59 AM - Re: cowl heat protection (Sean Stephens)
Message 1
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| Subject: | Re: cowl heat protection |
I used the adhesive reflective stuff you can purchase from ACS. 600 hours and
no issues. Photo below
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Bill
WA0SYV
Aviation Partners, LLC
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=469577#469577
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http://forums.matronics.com//files/img_3034_172.jpg
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| Subject: | Re: cowl heat protection |
I did the same as Patrick and it works well after 550 hours. The coverage needs
to be fairly extensive. I also have a bolt-on heat shield where the exhaust
pipe passes close to the cowl.
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Dave Moore
RV-6 built and sold
RV-10 built and flying
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=469578#469578
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| Subject: | Re: cowl heat protection |
In addition to the reflective foil I painted the inside of the cowl with
a few coats of white high-temp grill paint available at your local home
store. I don't have a 1000 hours of testing, but so far no issues.
-Sean #40303
> dlm <mailto:dlm34077@gmail.com>
> May 23, 2017 at 9:13 AM
> I used a silicon backed layer of fiberglass mat; after 1000 hr. it was
> OK; no apparent delamination. From last June to April 2017, I found
> three areas of delamination and had to replace multi layers both sides
> of the Nomex core. Unfortunately last June, I let an FBO do some work
> and unknown to me, the baffling was not correctly reinstalled and
> sealed; it is unknown whether this contributed to the delamination.
> The cowl has been fixed except for the new heat protection. What are
> other builders using? what are your results? My plan now is to use the
> reflective aluminum adhesive back material for the areas near (less
> than 3") the exhaust system. Selected areas will also have Fiberfrax
> beneath the reflective foil. Per the heat document from Vans, I will
> not be wrapping selected exhaust system areas, although an IA friend
> says that turbine exhaust systems are routinely wrapped. Any
> suggestions other than NEVER LET ANYONE ELSE TOUCH.
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