Today's Message Index:
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1. 07:03 AM - Re: Jaguar cowling with the stock muffler STC (Dj Merrill)
2. 10:14 AM - Re: Jaguar cowling with the stock muffler STC (grumpyparts)
3. 11:13 AM - Garner, thanks for the decal (Gary Vogt)
4. 11:13 AM - Brain fart (Gary Vogt)
5. 11:26 AM - Re: Re: Jaguar cowling with the stock muffler STC POWERFLO CERTIFICATION (RESTR 1)
6. 12:19 PM - Re: Brain fart (grumpyparts)
Message 1
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| Subject: | Re: Jaguar cowling with the stock muffler STC |
On 10/04/2010 11:32 PM, Gary Vogt wrote:
> It seems like it would be easy to certify the cowling with the stock
> muffler, doesn't it. I mean, hey, the stock Tiger has one. What many
> of you fail to grasp is just what changing a small thing like the
> muffler would entail. There is absolutely nothing 'logical' about
> getting an STC. It's all about examining every possible affect a change
> makes and then investigating that possibility and how it MIGHT affect
> the safety of the airplane.
Which is precisely why a lot of us are turning to experimental
aviation. We've over-regulated ourselves right out of the certified
market, making the price so high that us mere mortals can't afford to
play there anymore. If you just want to fly and not play, certifieds
are great for that.
With my budget I can't even contemplate paying multiple thousands of
dollors for an exhaust system or a cowling. Just no way I could afford
to do it. But I can fabricate my own exhaust or cowling for an
experimental for the cost of materials and my labor, and when I am
working for myself, my labor is cheap! :-)
I really applaud you guys pursuing the STC options for our aircraft. I
wish there were a way we could make the process a lot easier and cheaper
so more of us could afford to enjoy the fruits of your efforts.
-Dj
--
Dj Merrill - N1JOV
Glastar Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/
Please use Netiquette Guidelines http://tools.ietf.org/html/rfc1855
Kindly TRIM your email replies and post AFTER the relevant text
Message 2
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| Subject: | Re: Jaguar cowling with the stock muffler STC |
> What many of you fail to grasp is just what changing a small thing like the muffler
would entail.
So it would be interesting to know whether Power Flow had all the same hoops to
jump through when getting the STC for the Standard cowling and again when they
changed it from external to internal.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=314808#314808
Message 3
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| Subject: | Garner, thanks for the decal |
I found the perfect spot for it.
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Did I send before and after pics of the oil flow tests on my cowling? I thought
I did but I can't find the email.
Message 5
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| Subject: | Re: Jaguar cowling with the stock muffler STC POWERFLO |
CERTIFICATION
Certification Process back to top
<http://powerflowsystems.com/exhaust_process.php#top>
The main goal of the certification process is to be issued a
Supplemental Type Certificate (STC) and a Parts Manufacturing Approval
(PMA) by the FAA. These allow us to sell and install our Tuned Exhaust
Systems.
While there aren't that many steps involved, the whole process may take
up to a year before an STC is issued!
The first step involves submitting an application for an STC/PMA to the
local FAA office. This application includes which product we seek to
certify, and on which aircraft the product will be installed. The
application also includes a schedule of when the different phases of the
project are to be completed, as well as some administrative data.
Next, after all of the assembly drawings (headers, collectors, etc.) are
made, they are submitted for review. We are then required to wait for a
Statement of Conformity which, when signed by the FAA states that we are
permitted to move on to the approved test proposal. Getting past this
hurdle is 75% of the battle. After everything has been approved, we move
on to the inspection and testing of the completed assembly. Here, an FAA
representative witnesses an install, and flight test. If everything is
with in compliance, the FAA representative submits a recommendation for
STC. This recommendation is then reviewed, and if there are no problems,
we are submitted an STC!
Sound pretty easy? Well, it would be, but keep in mind that if something
is found that doesn't meet the strict tolerances of the FAA, it may take
weeks to correct. This could range from a simple re-weld of a header, to
putting an aircraft into an experimental category for three months.
We make an effort to work with the FAA as efficiently as possible, but
sometimes, the only answer is patience.
On 10/5/2010 10:12 AM, grumpyparts wrote:
> --> TeamGrumman-List message posted by: "grumpyparts"<i.r.m@btinternet.com>
>
>
>> What many of you fail to grasp is just what changing a small thing like the
muffler would entail.
>
> So it would be interesting to know whether Power Flow had all the same hoops
to jump through when getting the STC for the Standard cowling and again when they
changed it from external to internal.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=314808#314808
>
>
Message 6
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Is this what you were looking for Gary.
http://forums.matronics.com/viewtopic.php?t=74383
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=314832#314832
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