Today's Message Index:
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1. 08:06 AM - Cowling Design (OHIOFLYBOY@AOL.COM)
2. 05:38 PM - Re: Instrument Panel on N28840 (923te)
3. 11:12 PM - Re: Instrument Panel on N28840 (TeamGrumman@AOL.COM)
4. 11:12 PM - Re: Re: TeamGrumman-List Digest: 1 Msgs - 01/28/05 (TeamGrumman@AOL.COM)
Message 1
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--> TeamGrumman-List message posted by: OHIOFLYBOY@aol.com
Gary,
Reducing the parasite drag by a reduction in the inlet makes sense. As you
say, reducing the spillage drag some more will also help the airspeed increase.
If I remember correctly, I believe the spillage drag is probably a larger
percentage of the total cooling drag than the parasite drag from the inlet
surface area. There is a very fine balance between optimizing the spillage,
parasite drag and the delta P you need to achieve for proper cooling.
I applaud your efforts and am looking forward to the results. I have been
debating about upgrading from a Cheetah to a Tiger to get more speed, but now I
see some promising options for increasing the speed on the Cheetah.
Have you looked into some of the low speed aero codes available from NASA.
They maybe of benefit, but you may be at the point where experimentation is
what is needed to "tweak" it in there.
Richard Mutzman
AA5A N9682U
Phillipsburg, OH 3I7
Message 2
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| Subject: | Re: Instrument Panel on N28840 |
--> TeamGrumman-List message posted by: "923te" <923te@cox.net>
Hi Gary,
I have a '76 Cheetah that I'm thinkng about restoring. I was wondering what
was involved in replacing the instrument panel in Travis's Tiger. You did a
beautiful job on it.
Did you completly remove the old panel?
Did you utilize any AG5B stuff like the air vent tube?
Did you happen to make any pattterns for making another similar panel or
have a CAD file for the panel cutout?
Your Fellow Grumman Enthusiast,
Ned
Message 3
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| Subject: | Re: Instrument Panel on N28840 |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
Well, I started with a stock AG5B panel, made so many changes that I decided
to make a completley new panel. It's made of 090 6061 T3 Alum.
The vents are custom made using 4 eyeball vents ($400 total) and custom
mounting from the NACA vent. I used 4 separate 2 inch hoses.
No patterns. It was a one-off replacement. The original panel had been
cut up so much that it looked like swiss cheese. I tried a number of patches
before trying the one and only OEM AG5B panel I had. Then, decided to make my
own. The holes were hand fitted. There is less than .008 difference
between the height and or spacing of any hole for mounting or instruments. I
really spent way too much time on it.
==============
In a message dated 1/30/05 5:39:42 PM, 923te@cox.net writes:
> Hi Gary,
>
> I have a '76 Cheetah that I'm thinkng about restoring. I was wondering what
> was involved in replacing the instrument panel in Travis's Tiger. You did a
> beautiful job on it.
>
> Did you completly remove the old panel?
>
> Did you utilize any AG5B stuff like the air vent tube?
>
> Did you happen to make any pattterns for making another similar panel or
> have a CAD file for the panel cutout?
>
> Your Fellow Grumman Enthusiast,
> Ned
>
Message 4
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| Subject: | Re: TeamGrumman-List Digest: 1 Msgs - 01/28/05 |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 1/29/05 8:41:10 PM, jfarra@iapc.net writes:
> Go Gary, Go!
>
wanna drag?
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