Today's Message Index:
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1. 06:11 AM - Re: Re: Oil leaking under instrument panel (flyv35b)
2. 09:33 PM - MT Propeller Update (TeamGrumman@aol.com)
Message 1
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| Subject: | Re: Oil leaking under instrument panel |
--> TeamGrumman-List message posted by: "flyv35b" <flyv35b@juno.com>
The aluminum tubing material is 5052-O (very soft so it can be flared). The
Mitchell gauges are the only ones that are STC'd for installation as primary
replacement of the original except for the Electronics Internation OPT-1 and
VA-1A digital. Unfortunately they don't have a fuel pressure gauge approved
as primary, yet.
Cliff A&P/IA
----- Original Message -----
From: "jeff" <jskitte1@midsouth.rr.com>
Subject: Re: Re: TeamGrumman-List: Oil leaking under instrument panel
> --> TeamGrumman-List message posted by: "jeff" <jskitte1@midsouth.rr.com>
>
> thanks for the reply. Yea I can make a new line, that's not the problem.
I
> just wanted more info on what kind of line (aluminum, 2024? 6061? don't
> know).
> Also, the Mitchell electric gauges. Where can I find more info. I hate
> mechanical gauges due to the plumbing and the stock gauges are hard to
read.
> I've found them on the web but was wondering what kind of paper work is
> involved. Really like the UMA small round gauges. Looks more
"modern/jet".
> Thanks
> Jeff
> ----- Original Message -----
> From: "Charles Adams" <cradams2@adelphia.net>
> To: <teamgrumman-list@matronics.com>
> Subject: Re: Re: TeamGrumman-List: Oil leaking under instrument panel
>
>
> > --> TeamGrumman-List message posted by: Charles Adams
> <cradams2@adelphia.net>
> >
> > sorry Jeff,
> >
> > The Service bulletin is SB 188. Fletch used to keep it on the website.
> >
> > Like Cliff said get your A&P to make a new line. Also look at the fuel
> lines while you are there.
> >
> > Best thing is to replace the gages with Mitchell gages. Gets rid of hard
> lines in the cockpit.
> >
> > Charlie Adams
> > >
> > > From: "jeff" <jskitte1@midsouth.rr.com>
> > > Date: 2003/12/28 Sun AM 08:56:23 PST
> > > To: <teamgrumman-list@matronics.com>
> > > Subject: Re: TeamGrumman-List: Oil leaking under instrument panel
> > >
> > >
> >
> >
>
>
Message 2
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| Subject: | MT Propeller Update |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
I talked to an FAA guy with experience certifying an MT prop on a Cherokee.
He told me they did the certification for 2700 rpm redline.
He also suggested I look up the Type Certificate Data Sheet for the prop and
see if it spells out what the design red line is.
So I did.
But First...
I flew the MT prop a couple more times. As I might have mentioned, the
controller is set to operate at 1500-2500 rpm. After flying the plane, at
anything much above 15 to 18 inches manifold pressure, the pop won't pull down
to
1500 rpm with the controller set to 1500 rpm.
From the little experience I have flying the plane with the MT prop, it looks
like the engine operating range should be in the 1800 to 2700 rpm range.
Perhaps, to be perfectly honest, with a lot of flying time, I could see
justification for anything below 2000 rpm. As it is, even with the controller
set to
2500 rpm, flying a touch and go pattern is a piece-O-cake. I'm not clear as
to why anyone would need to set the engine to 1500 rpm.
As for the TCDS redline. the prop looks like it's designed for 210-220 hp and
2800 rpm.
It climbs well, but the benefits of constant speed are lost in the 2500 rpm
red line imposed by the STC.
Gary
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