Today's Message Index:
----------------------
1. 12:08 AM - Official TeamGrumman-List Usage Guidelines (Matt Dralle)
2. 09:25 AM - Engine ground runs (Dennis Cheever)
3. 12:26 PM - Re: Engine ground runs (Gary L Vogt)
4. 12:49 PM - Re: Engine ground runs (Linn Walters)
5. 01:58 PM - Re: Engine ground runs (Gary L Vogt)
Message 1
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| Subject: | Official TeamGrumman-List Usage Guidelines |
Dear Listers,
Please read over the TeamGrumman-List Usage Guidelines below. The complete
TeamGrumman-List FAQ including these Usage Guidelines can be found at the
following URL:
http://www.matronics.com/FAQs/TeamGrumman-List.FAQ.html
Thank you,
Matt Dralle
Matronics Email List Administrator
******************************************************************************
TeamGrumman-List Usage Guidelines
******************************************************************************
The following details the official Usage Guidelines for the TeamGrumman-List.
You are encouraged to read it carefully, and to abide by the rules therein.
Failure to use the TeamGrumman-List in the manner described below may result
in the removal of the subscribers from the List.
TeamGrumman-List Policy Statement
The purpose of the TeamGrumman-List is to provide a forum of discussion for
things related to this particular discussion group. The List's goals
are to serve as an information resource to its members; to deliver
high-quality content; to provide moral support; to foster camaraderie
among its members; and to support safe operation. Reaching these goals
requires the participation and cooperation of each and every member of
the List. To this end, the following guidelines have been established:
- Please keep all posts related to the List at some level. Do not submit
posts concerning computer viruses, urban legends, random humor, long
lost buddies' phone numbers, etc. etc.
- THINK carefully before you write. Ask yourself if your post will be
relevant to everyone. If you have to wonder about that, DON'T send it.
- Remember that your post will be included for posterity in an archive
that is growing in size at an extraordinary rate. Try to be concise and
terse in your posts. Avoid overly wordy and lengthy posts and
responses.
- Keep your signature brief. Please include your name, email address,
aircraft type/tail number, and geographic location. A short line
about where you are in the building process is also nice. Avoid
bulky signatures with character graphics; they consume unnecessary
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easy to find threads in the archive.
- When responding, NEVER quote the *entire* original post in your
response. DO use lines from the original post to help "tune in" the
reader to the topic at hand, but be selective. The impact that
quoting the entire original post has on the size of the archive
can not be overstated!
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then go ahead and reply to the List. Be aware that clicking the
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is about sharing information and knowledge. This applies to
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-------
[This is an automated posting.]
do not archive
Message 2
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| Subject: | Engine ground runs |
Hi all,
I posted over on GG about dynamic propeller balancing and got overwhelming
positive comments, particularly from Jim Shafer at Power Flow. Obviously
all of us with Jaguar cowlings do have the Power Flow exhaust. There is a
YouTube video of a Tiger getting balanced and I noticed that with the
original cowling they are running it with the top removed but the bottom
still in place. My question to other Jaguar cowl owners (and more
specifically to Gary) is, would it be safe to do this with the Jag cowl? I
would think completely removing it prior to an engine run would be better,
but thought I would ask.
Dennis Cheever
N3752W @ L45
Message 3
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| Subject: | Re: Engine ground runs |
You can=99t get any engine cooling with the cowling off.
I really don=99t know why the cowling needs to come off. Unless
it=99s for an accelerometer. I had a prop balance and they
didn=99t take the cowling off.
Keep in mind that any post balancing nicks, or filing of the nicks in
your prop, negates the prop balance.
Gary
> On Jun 2, 2016, at 9:13 AM, Dennis Cheever <dcheever@bak.rr.com>
wrote:
>
> Hi all,
>
> I posted over on GG about dynamic propeller balancing and got
overwhelming positive comments, particularly from Jim Shafer at Power
Flow. Obviously all of us with Jaguar cowlings do have the Power Flow
exhaust. There is a YouTube video of a Tiger getting balanced and I
noticed that with the original cowling they are running it with the top
removed but the bottom still in place. My question to other Jaguar cowl
owners (and more specifically to Gary) is, would it be safe to do this
with the Jag cowl? I would think completely removing it prior to an
engine run would be better, but thought I would ask.
>
>
> Dennis Cheever
> N3752W @ L45
Message 4
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| Subject: | Re: Engine ground runs |
Actually, the final run(s) should be done with the airplane ready for
flight. I've taken the test set on a flight when we couldn't get static
RPM close to cruise RPM. I've always attached the accelerometer to the
engine. The accelerometer is sensitive enough that it will pick up
motion of the airframe from winds making the final run(s) tough to nail
down.
I don't agree that filing knicks negates the balance ..... but it will
change it a little ...... and not enough to tell on a re-balance. Any
nick/filing large enough to negate the balance job would probably render
the prop unairworthy .... unless at the very tip.
No, I don't do dynamic balances any more. :-(
Linn
On 6/2/2016 3:26 PM, Gary L Vogt wrote:
> You cant get any engine cooling with the cowling off.
>
> I really dont know why the cowling needs to come off. Unless its
> for an accelerometer. I had a prop balance and they didnt take the
> cowling off.
>
> Keep in mind that any post balancing nicks, or filing of the nicks in
> your prop, negates the prop balance.
>
> Gary
>
>
>> On Jun 2, 2016, at 9:13 AM, Dennis Cheever <dcheever@bak.rr.com
>> <mailto:dcheever@bak.rr.com>> wrote:
>>
>> Hi all,
>> I posted over on GG about dynamic propeller balancing and got
>> overwhelming positive comments, particularly from Jim Shafer at Power
>> Flow. Obviously all of us with Jaguar cowlings do have the Power
>> Flow exhaust. There is a YouTube video of a Tiger getting balanced
>> and I noticed that with the original cowling they are running it
>> with the top removed but the bottom still in place. My question to
>> other Jaguar cowl owners (and more specifically to Gary) is, would it
>> be safe to do this with the Jag cowl? I would think completely
>> removing it prior to an engine run would be better, but thought I
>> would ask.
>> Dennis Cheever
>> N3752W @ L45
>
Message 5
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| Subject: | Re: Engine ground runs |
I stopped doing prop balancing 20 years ago.
> On Jun 2, 2016, at 12:48 PM, Linn Walters <flying-nut@cfl.rr.com>
wrote:
>
> Actually, the final run(s) should be done with the airplane ready for
flight. I've taken the test set on a flight when we couldn't get static
RPM close to cruise RPM. I've always attached the accelerometer to the
engine. The accelerometer is sensitive enough that it will pick up
motion of the airframe from winds making the final run(s) tough to nail
down.
> I don't agree that filing knicks negates the balance ..... but it will
change it a little ...... and not enough to tell on a re-balance. Any
nick/filing large enough to negate the balance job would probably render
the prop unairworthy .... unless at the very tip.
> No, I don't do dynamic balances any more. :-(
> Linn
>
> On 6/2/2016 3:26 PM, Gary L Vogt wrote:
>> You can=99t get any engine cooling with the cowling off.
>>
>> I really don=99t know why the cowling needs to come off.
Unless it=99s for an accelerometer. I had a prop balance and they
didn=99t take the cowling off.
>>
>> Keep in mind that any post balancing nicks, or filing of the nicks in
your prop, negates the prop balance.
>>
>> Gary
>>
>>
>>> On Jun 2, 2016, at 9:13 AM, Dennis Cheever <dcheever@bak.rr.com
<mailto:dcheever@bak.rr.com>> wrote:
>>>
>>> Hi all,
>>>
>>> I posted over on GG about dynamic propeller balancing and got
overwhelming positive comments, particularly from Jim Shafer at Power
Flow. Obviously all of us with Jaguar cowlings do have the Power Flow
exhaust. There is a YouTube video of a Tiger getting balanced and I
noticed that with the original cowling they are running it with the top
removed but the bottom still in place. My question to other Jaguar cowl
owners (and more specifically to Gary) is, would it be safe to do this
with the Jag cowl? I would think completely removing it prior to an
engine run would be better, but thought I would ask.
>>>
>>>
>>> Dennis Cheever
>>> N3752W @ L45
>>
>
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