Today's Message Index:
----------------------
1. 07:09 AM - Re: prop pitch question (flyv35b)
2. 11:35 PM - oil cooler issues (Stephen Stinis)
3. 11:42 PM - Re: Aft fuselage cracks (TeamGrumman@AOL.COM)
4. 11:52 PM - Re: prop pitch question (TeamGrumman@AOL.COM)
Message 1
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| Subject: | Re: prop pitch question |
--> TeamGrumman-List message posted by: "flyv35b" <flyv35b@ashcreekwireless.com>
With your longer x-country flights I'd go with the 64" and see how it works.
You can always repitch it later on or add the PF exhaust and then you
wouldn't want to. I doubt if a 2300 ft. strip will be a problem with a 64"
pitch prop unless there are tall obstructions right off the end. I have
flown a Tiger in an out of a 1500 ft. strip in the past with a 63" pitch.
Cliff A&P/IA
----- Original Message -----
From: <airman@appledumplings.com>
Sent: Monday, April 17, 2006 12:56 PM
Subject: TeamGrumman-List: prop pitch question
> --> TeamGrumman-List message posted by: airman@appledumplings.com
>
> Originally sent this to the grumman-gang list with an "unacceptable
> subject line" and got bounced by the gg-list nazi. figured I would
> try here.
>
>>
>> I bought a 76 tiger and am getting a new sensenich prop. The
>> problem is that the only pitch that they have is the 64" pitch prop
>> available ... i was looking at 62" or 63" pitch but they say 6-12
>> weeks. Repitching is extra So either I go with the 64 or i go
>> pick it up and do the prop later.
>> It doesnt have any performance mods like the power flow or anything
>> so I am unsure what the max pitch I should consider.
>> I have no experience in tigers so recommendations would be
>> helpful. I plan to use it for my ifr training and flights back
>> and forth to in-laws about 4-500 miles. I also will be going to a
>> sea level airport of 2300' long on and off.
>> Thanks in advance,
>> Thomas
>> N74225
>
>
>
Message 2
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| Subject: | oil cooler issues |
--> TeamGrumman-List message posted by: "Stephen Stinis" <stinis@cox.net>
Have any of you experience high oil temp on your Grumman tigers (AA5B)
during the warm months? I live in Southern CA and just the other day it was
around 85-90 degrees and by the time I took off to climbing through 3,000ft
my oil temp was almost at redline (250 degrees). I recently bought the
aircraft. Since I've had it hasn't been hot lately, so the problem has been
masked.
To stop the high oil temp, I recently put an oversized oil cooler on it, and
no change. This particular aircraft has oversized scopes located under the
cowling and also has an exhaust speed faring. Do any of you think this
would have any factor that would make it worse than a stock grumman? I also
took the sending unit out and replaced it with a new one. I also put both
sending units in boiling water along with the gauges to see if there was
something wrong...but everything seems to be accurate. We also verified the
thermostat was opening as well. The funny thing is you would assume your
cylinder temps would rise....well they were around 360 degrees. The
particualar aircraft has an EI gauge which is helpful.
Someone recommended to cross the oil lines at the oil cooler. He said
sometimes they could be switched internally...but, I've never heard of that
before. Every Grumman I've seen is rigged the same way I have it. I also
have another grumman that flies better in the heat. The hottest I've see
the oil temp is around 200 degrees and it's a stock AA5B. It doesn't haven
any of the mods I mentioned before on the other. Right now, were all
scratching our heads as to why this aircraft is at least 40-60 degrees
warmer than the other grumman.
Any thoughts/suggestions?
Thanks,
Stephen
Message 3
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| Subject: | Re: Aft fuselage cracks |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 4/17/06 5:09:04 AM, jamesgrieco@yahoo.com writes:
> or gusseting
> the corners of the stiffeners together?
>
yes
Message 4
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| Subject: | Re: prop pitch question |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
Most Tigers won't do very well with a 64" pitch. The original blank, if I'm
not mistaken, is made with a 62" pitch, so, it's already been twisted 2
inches. If you twist it back 2 inches, that's 4 inches it's been twisted already.
It can only be twisted a total of 8 inches ........ So, with that said,
Depending on how strong your engine is, I'd see if I could get a custom twist
with the twist at 64-62-60. The average is 62 which is a legal pitch for
the Tiger. But, you get back about 75 to 100 rpm and you don't give up much in
cruise. maybe 2 knots.
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