Today's Message Index:
----------------------
1. 10:58 AM - Re: Weight and Balance? (Dave Bigelow)
2. 01:16 PM - Re: Re: Just a rare good day in Ohio (gary aman)
3. 03:38 PM - Re: Generac test data..IE: Jimmys temps (Jimmy Young)
4. 05:04 PM - Need Flight Instruction (Sara Grassel)
5. 06:18 PM - Re: 2008 Father's Day Gathering at the Kolb Farm (WhiskeyVictor36@aol.com)
6. 06:39 PM - Re: Just a rare good day in Ohio (N111KX (Kip))
7. 07:43 PM - Re: Generac test data..IE: Jimmys temps (Don G)
Message 1
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| Subject: | Re: Weight and Balance? |
The 25% to 35% range for CG is pretty standard for conventional aircraft with tailfeathers
rather than a flying wing or canard. If your CG falls within that
range and you have a pitch trim problem, the solution is not to to change CG.
You should add a trim tab to the elevator, a bungee or spring to the stick,
or a more radical solution - change the angle of incidence of the tail.
A CG aft of the recommended rear llimit is dangerous. The aircraft may feel and
handle just great, but in certain situations like a deep stall or spin, may
not be recoverable. There's nothing wrong with flying at or near the rear limit.
Sailplane pilots do it all the time to optimize handling and reduce drag.
If you do a good weight and balance with the aircraft in the proper pitch attitude
with good accurate scales, and the CG is aft of the limit, you should add
ballast to keep it within the llimit. This stuff is basic and is applicable to
all conventional aircraft.
Homer didn't design aircraft that beat the rules. If his planes don't exhibit
dangerous flight charactoristics with the CG slightly behind the limit, that means
he probably was being conservative when he published the limits. Somewhere
back of his published limit is "never never" land, and you don't want to be
the person who finds out exactly where that is unless you are conducting a flight
test program with a drag chute, etc to be able to recover from a deep stall
or flat spin.
If Dennis Souder (did most of the flight testing at Old Kolb) is reading this thread,
it would be good to get his input.
--------
Dave Bigelow
Kamuela, Hawaii
FS2, HKS 700E
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=194919#194919
Message 2
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| Subject: | Re: Just a rare good day in Ohio |
The week end will be garbage here ,so we took friday off and went to breakfast
and then stopped for a cone on the way home.What follows two days of rain in
Ohio? Monday.
----- Original Message ----
From: Dave Bigelow <up_country@hotmail.com>
Sent: Friday, July 25, 2008 1:56:09 PM
Subject: Kolb-List: Re: Weight and Balance?
The 25% to 35% range for CG is pretty standard for conventional aircraft with tailfeathers
rather than a flying wing or canard. If your CG falls within that
range and you have a pitch trim problem, the solution is not to to change CG.
You should add a trim tab to the elevator, a bungee or spring to the stick,
or a more radical solution - change the angle of incidence of the tail.
A CG aft of the recommended rear llimit is dangerous. The aircraft may feel and
handle just great, but in certain situations like a deep stall or spin, may
not be recoverable. There's nothing wrong with flying at or near the rear limit.
Sailplane pilots do it all the time to optimize handling and reduce drag.
If you do a good weight and balance with the aircraft in the proper pitch attitude
with good accurate scales, and the CG is aft of the limit, you should add
ballast to keep it within the llimit. This stuff is basic and is applicable to
all conventional aircraft.
Homer didn't design aircraft that beat the rules. If his planes don't exhibit
dangerous flight charactoristics with the CG slightly behind the limit, that means
he probably was being conservative when he published the limits. Somewhere
back of his published limit is "never never" land, and you don't want to be
the person who finds out exactly where that is unless you are conducting a flight
test program with a drag chute, etc to be able to recover from a deep stall
or flat spin.
If Dennis Souder (did most of the flight testing at Old Kolb) is reading this thread,
it would be good to get his input.
--------
Dave Bigelow
Kamuela, Hawaii
FS2, HKS 700E
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=194919#194919
Message 3
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| Subject: | Re: Generac test data..IE: Jimmys temps |
Don,
Thanks for the tip, makes sense.
I put some foil tape over the oil cooler and now have the oil hitting
215-220 at full throttle.
Jimmy Y
FS II Generac
Houston TX
Message 4
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| Subject: | Need Flight Instruction |
Wanted: Instruction in flying a Kolb in Southern California.
Please call at Martin Grassel at (818) 249-5573 or email at
sgrassel@earthlink.net
Message 5
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| Subject: | Re: 2008 Father's Day Gathering at the Kolb Farm |
In a message dated 7/20/2008 10:26:17 A.M. Eastern Daylight Time,
gtalexander@att.net writes:
....At the 2004 gathering at the Kolb farm, Bill told the group that when he
was buying his kit from Kolb, someone said that he didn't look like a flyer.
A builder maybe, but not a flyer. Looks can be deceiving. How many PIC
hours do you have now, Bill?
Hi George,
That someone was Dave Starbuck when he was working at old Kolb. I had
stopped in one day to look over the FireStar and he was the one that convinced
me
it was easy to build.
I don't recall how much time passed, but on June 30, 1989 I stopped in
again and purchased a kit from Homer.
My pilot flight log shows 535 hours of total time. Of that, 492 hrs were in
my Kolb and 43 hrs were in various other craft, mostly in a PA18 90hp Super
Cub, which is what I trained and soloed in, but also flew a Taylorcraft
BC12D, Cessna 140, J3 Cub, Cessna 150 and an Aeronca Champ. Started flying April
5, 1958 through Feb 1, 1967. Then a big gap of almost 27 years of no flying
until I got the Kolb going. First flight in my Kolb was June 18, 1994.
Never got a PVT license, but do have the USUA UL pilot license. Now aren't you
sorry you asked?
Bill Varnes
Original Kolb FireStar
Audubon NJ
Do Not Archive
**************Get fantasy football with free live scoring. Sign up for
FanHouse Fantasy Football today.
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Message 6
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| Subject: | Re: Just a rare good day in Ohio |
Looks like fun. Can you just pull up to the diner there...?
--------
Kip
Firestar II, N111KX
Waiex, N111YX
Quickie 1, N111QX
Atlanta
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=194994#194994
Message 7
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| Subject: | Re: Generac test data..IE: Jimmys temps |
Perfect!.....
--------
Don G.
Central Illinois
Kitfox IV Speedster
Luscombe 8A
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=195007#195007
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