Today's Message Index:
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1. 11:05 AM - Re: Re:cowling update (Michael Karatsonyi)
2. 11:25 AM - Re: Re:cowling update (Hosler, John)
Message 1
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| Subject: | re:cowling update |
hello all=2C
i have a 1978 grumman aa1-c with the original 0235 L2C i am located in sout
hern ca. my question is i recently flew with a passenger with only using 36
5lbs of my 489 useful load minus 6-8 gal of gas. i departed van nuys and sl
owly climbed to 2300' after about maybe 10 min of flight i noticed oil temp
was 290 or so ..close to yellow/red on gauge so i leveled out full rich an
d pull rpm back to 2100rpm it slowly cooled but what i noticed and what my
question is ...is that cabin heat was off and vents full open(oh by the way
i had canopy open) it was 70 degrees outside nice and cool but vents were
blowing out hot air i verified and cycled cabin heat it got hotter shut it
off but still warm....does anyone anything about this...thanks michael
updateDate: Tue=2C 16 Sep 2008 23:57:39 -0400From: robsherwin@aol.comThe s
ame is true of the AA5 (and AA5A) POH's. The Tiger POH is much more realis
tic. The high=2C and especially the high and hot=2C for the Cheetah's take
distance get increasingly ridiculous. Compare the take off distance over
50' at standard temp at 8=2C000. For the Cheetah=2C it's 2=2C700 but for t
he Tiger it's about 3=2C450. How can that be? The Cheetah takes longer at
sea level to take off and has a significantly lower service ceiling. Ther
e is no way that it is magically that much better than the Tiger just when
it's high (and/or hot). We all know that's when those of us that have 150
bhp wish for 160 (or more).By the way=2C Gary=2C I now own Kevin Loftus 985
3U (since '04). She flies like a champ still (except for that density alti
tude thing).Rob-----Original Message-----From: flyv35b <flyv35b@minetfiber.
com>To: teamgrumman-list@matronics.comSent: Wed=2C 3 Sep 2008 6:49 amSubjec
t: Re: TeamGrumman-List: re:cowling update
I can tell you one thing: If you believe the takeoff distance (ground roll
and over a 50 ft obstacle) performance numbers in an AA-1XX POH for higher
density altitude takeoffs you are in for a rude awakening unless you leave
LOTS of reserve. Cliff
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Message 2
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| Subject: | re:cowling update |
With that kind of oil temp I would remove oil filter and check for
metal.
John
________________________________
From: owner-teamgrumman-list-server@matronics.com
[mailto:owner-teamgrumman-list-server@matronics.com] On Behalf Of
Michael Karatsonyi
Sent: Wednesday, September 17, 2008 2:05 PM
Subject: RE: TeamGrumman-List: re:cowling update
hello all,
i have a 1978 grumman aa1-c with the original 0235 L2C i am located in
southern ca. my question is i recently flew with a passenger with only
using 365lbs of my 489 useful load minus 6-8 gal of gas. i departed van
nuys and slowly climbed to 2300' after about maybe 10 min of flight i
noticed oil temp was 290 or so ..close to yellow/red on gauge so i
leveled out full rich and pull rpm back to 2100rpm it slowly cooled but
what i noticed and what my question is ...is that cabin heat was off and
vents full open(oh by the way i had canopy open) it was 70 degrees
outside nice and cool but vents were blowing out hot air i verified and
cycled cabin heat it got hotter shut it off but still warm....does
anyone anything about this...thanks michael
________________________________
Subject: Re: TeamGrumman-List: re:cowling update
From: robsherwin@aol.com
The same is true of the AA5 (and AA5A) POH's. The Tiger POH is much
more realistic. The high, and especially the high and hot, for the
Cheetah's take distance get increasingly ridiculous. Compare the take
off distance over 50' at standard temp at 8,000. For the Cheetah, it's
2,700 but for the Tiger it's about 3,450. How can that be? The Cheetah
takes longer at sea level to take off and has a significantly lower
service ceiling. There is no way that it is magically that much better
than the Tiger just when it's high (and/or hot). We all know that's
when those of us that have 150 bhp wish for 160 (or more).
By the way, Gary, I now own Kevin Loftus 9853U (since '04). She flies
like a champ still (except for that density altitude thing).
Rob
-----Original Message-----
From: flyv35b <flyv35b@minetfiber.com>
Sent: Wed, 3 Sep 2008 6:49 am
Subject: Re: TeamGrumman-List: re:cowling update
<flyv35b@minetfiber.com>
I can tell you one thing: If you believe the takeoff distance (ground
roll and over a 50 ft obstacle) performance numbers in an AA-1XX POH for
higher density altitude takeoffs you are in for a rude awakening unless
you leave LOTS of reserve.
Cliff
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