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1. 12:31 PM - Re: Plane Power alternator (WILLIAM KELLY)
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| Subject: | Re: Plane Power alternator |
Gary,
Don't know if you were able to see my post today on the GG responding to
Les Staples minimizing the PP alternator noise issue. They appear to be
in denial about this. The noise really bothers Allisen when she flys
with me. One reason, beyond my own personal preferences, that I try to
keep the plane so nice is so that Allisen has confidence in the
machinery and is comfortable on our trips. It irks me when something
like this noise deal intrudes on that objective. My GG post stated that
there is no way you could have a problem with an alernator installation
unless the unit istelf had issues. Incidentally, we still want to fly
up to Auburn. The weather just hasn't settled down yet from winter
leftovers.
Bill
Remember a few months ago when I asked what other's experience was
with PP alternators? At the time, I had installed a new PP alternator
that was very noisy. A couple of other PP owners also wrote to say
theirs was noisy also. My customer sent his alternator to PP to have
them check it. It came back saying it was in specs. It was still very
noisy. He installed an overhauled Kelly alternator that was quiet.
PP needs to tighten up their specs.
Sent from my iPhone
On Apr 8, 2010, at 12:59 PM, teamgrumman@aol.com wrote:
We're 'negotiating' right now. He has done a lot of modified
alternators and thinks he can by-pass any testing based on his data and
the previous flight test data. Keep your fingers crossed.
-----Original Message-----
From: flyv35b <flyv35b@minetfiber.com>
To: teamgrumman-list@matronics.com
Sent: Wed, Apr 7, 2010 6:29 am
Subject: Re: TeamGrumman-List: AG5B and the Jaguar cowling
Gary, I didn't realize that was the case with your baffling. That
sounds like a welcome improvement for accessibility to the alternator.
I realize that logic does not play an important role in their
decision making many times but it sounds like it is your DER that is
making the decision as to whether another cooling test should be run or
not. Doesn't he have the authority to make such a decision based on the
facts and info available?
Cliff
----- Original Message -----
From: teamgrumman@aol.com
To: teamgrumman-list@matronics.com
Sent: Tuesday, April 06, 2010 9:42 PM
Subject: Re: TeamGrumman-List: AG5B and the Jaguar cowling
The alternator on a Jaguar is open like it was on a Traveler. I
have holes in the cabin heat duct that vent directly on the alternator.
During tests, the alternator was a little warmer, but not by enough to
make a difference.
Cliff, it's the FAA. Logic does not come into the picture.
-----Original Message-----
From: flyv35b <flyv35b@minetfiber.com>
To: teamgrumman-list@matronics.com
Sent: Tue, Apr 6, 2010 2:24 pm
Subject: Re: TeamGrumman-List: AG5B and the Jaguar cowling
What makes them think it would run hotter just because it's 24
volts? Also, It's on the cold side of the baffle and shouldn't see much
engine or exhaust heat. No real difference from an AA-5B is there?
Cliff
----- Original Message -----
From: teamgrumman@aol.com
To: teamgrumman-list@matronics.com
Sent: Tuesday, April 06, 2010 10:08 AM
Subject: Re: TeamGrumman-List: AG5B and the Jaguar cowling
So, I talked to the DER about the AG5B and my cowling. All was
going pretty well until he asked what else, besides the air box, was
changed in the AG5B. I told him, "They made it 24 volts." So, the FAA
may want a climb cooling test to see if the alternator on an AG5B runs
hotter than an AA5B.
What a pain in the ass.
-----Original Message-----
From: teamgrumman@AOL.COM
To: teamgrumman-list@matronics.com
Sent: Mon, Apr 5, 2010 12:41 pm
Subject: TeamGrumman-List: AG5B and the Jaguar cowling
Here is something I ran into last night. The bottom cowling
attach holes on the late model (Tiger LLC) Tigers do not have the same
spacing as real Tigers. For some reason, the spacing is changed by 1/8
inch on the outboard holes (the bottom corners and the holes near the
strut) and as much as 1/2 inch for the holes between them. What a waste
of engineering.
Not only that, but, that means the cowlings are not
interchangeable with AA5Bs. But, then, with the funky inlet, who'd want
to? Right?
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