Today's Message Index:
----------------------
1. 02:13 PM - Kolb Mark III Xtra with 81 HP Rotax (John Darke)
2. 03:25 PM - Re: Kolb Mark III Xtra with 81 HP Rotax (John Darke)
3. 04:26 PM - Re: Kolb Mark III Xtra with 81 HP Rotax (Larry Cottrell)
4. 06:35 PM - Re: Kolb Mark III Xtra with 81 HP Rotax (John Darke)
5. 08:31 PM - Re: Kolb Mark III Xtra with 81 HP Rotax (Rick Neilsen)
Message 1
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| Subject: | Kolb Mark III Xtra with 81 HP Rotax |
Just purchased a Kolb Mark III Xtra with 81 HP Rotax and BRS Chute. The
weight and balance indicates a total weight of 748 pounds (seems high).
Can someone comment on the gross weight of this aircraft. The original
Gross Weight I saw was 1000 pounds with an empty weight of 490 pounds.
I also saw 1150 as gross weight. Comments will be welcome.
--
*John Darke, 72 Sabal Drive - Punta Gorda, FL 33950 - 941-676-0429*
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| Subject: | Re: Kolb Mark III Xtra with 81 HP Rotax |
Looking at the web site, it says 1000 pound gross and later says 1100
pounds.
http://www.kolbaircraft.com/markiiixtra.htm
Somewhere, I have seen 1150 pounds. "Do I hear 1200 pounds?"
John
Punta Gorda, FL
On Thu, Feb 8, 2018 at 5:12 PM, John Darke <jbdarke@gmail.com> wrote:
> Just purchased a Kolb Mark III Xtra with 81 HP Rotax and BRS Chute. The
> weight and balance indicates a total weight of 748 pounds (seems high).
>
> Can someone comment on the gross weight of this aircraft. The original
> Gross Weight I saw was 1000 pounds with an empty weight of 490 pounds.
>
> I also saw 1150 as gross weight. Comments will be welcome.
>
>
> --
> *John Darke, 72 Sabal Drive - Punta Gorda, FL 33950
> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+33950+-%C2%A0941&entry=gmail&source=g>-
941-676-0429
> <(941)%20676-0429>*
>
--
*John Darke, 72 Sabal Drive - Punta Gorda, FL 33950 - 941-676-0429*
Message 3
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| Subject: | Re: Kolb Mark III Xtra with 81 HP Rotax |
John, perhaps every one is sleeping or something. I am not an expert on
much of anything but, I might be able to give you a little guidance.
Keep in mind that I fly a firestar2.
If it is for your information and peace of mind- it is probably somewhere
around 1100 to 1150. Don't quote me but I think JH's Pfer is rated at 1250,
but he also beefed it up beyond plans. If it is for paper work purposes
then you might fudge a bit for the paper, and keep it lower for your own
peace of mind. John has decided how much weight he can carry safely, so he
set the passenger seat belt to a length that regulates how fat a passenger
he can carry. You can't snap the belt, you don't go flying. I can't fly
with him!
I believe that you said that it weighed about 760 empty. 600's would be a
bit more normal for weight. Just keep in mind that the heavier it is, the
more like a low end GA plane it flies, and the less fun it is to fly.
I was selling a Mark III once to a pretty chunky guy. He had crashed his
brothers ultra light and was going to buy mine to replace it. I weighed 240
and I asked him how much he weighed and he said 235. Yah! I bet he was
tipping close to 300. I was on the Alvord Desert which was 11 miles long at
that point, so I figured that worst come to worst we could drive it around.
I got it up to 60 MPH, and it wouldn't go any faster and didn't lift off
where it normally did, so I looked over at him and asked- "How much did you
say you weighed?" He stuck with 235, so I sucked in my own gut, gave it a
yank up into ground effects and we went flying- very carefully! I can say
that landing was as smooth as I had ever done since we had enough inertia
to not get slowed into a stall.
Almost all planes, especially those by Kolb have a pretty Conservative
limit built in. However abuse can be accumulative.
Hang in there some one is bound to look at their computer soon and give you
a definitive answer.
Larry
On Thu, Feb 8, 2018 at 4:24 PM, John Darke <jbdarke@gmail.com> wrote:
> Looking at the web site, it says 1000 pound gross and later says 1100
> pounds.
>
> http://www.kolbaircraft.com/markiiixtra.htm
>
> Somewhere, I have seen 1150 pounds. "Do I hear 1200 pounds?"
>
> John
> Punta Gorda, FL
>
> On Thu, Feb 8, 2018 at 5:12 PM, John Darke <jbdarke@gmail.com> wrote:
>
>> Just purchased a Kolb Mark III Xtra with 81 HP Rotax and BRS Chute. The
>> weight and balance indicates a total weight of 748 pounds (seems high).
>>
>> Can someone comment on the gross weight of this aircraft. The original
>> Gross Weight I saw was 1000 pounds with an empty weight of 490 pounds.
>>
>> I also saw 1150 as gross weight. Comments will be welcome.
>>
>>
>>
>> --
>> *John Darke, 72 Sabal Drive - Punta Gorda, FL 33950
>> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+33950+-%C2%A0941&entry=gmail&source=g>-
>> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+33950+-%C2%A0941&entry=gmail&source=g>941-676-0429
>> <(941)%20676-0429>*
>>
>
>
> --
> *John Darke, 72 Sabal Drive - Punta Gorda, FL 33950
> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+33950+-%C2%A0941&entry=gmail&source=g>-
941-676-0429
> <(941)%20676-0429>*
>
--
*The older I get, the less tolerant I am of those who are intolerant of
others.*
*If you forward this email, or any part of it, please remove my email
address before sending.*
Message 4
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| Subject: | Re: Kolb Mark III Xtra with 81 HP Rotax |
Thanks for your comprehensive reply, Larry. We are going to do a weight
and balance this week end.
John
On Thu, Feb 8, 2018 at 7:24 PM, Larry Cottrell <lcottrell1020@gmail.com>
wrote:
> John, perhaps every one is sleeping or something. I am not an expert on
> much of anything but, I might be able to give you a little guidance.
> Keep in mind that I fly a firestar2.
>
> If it is for your information and peace of mind- it is probably somewhere
> around 1100 to 1150. Don't quote me but I think JH's Pfer is rated at
> 1250, but he also beefed it up beyond plans. If it is for paper work
> purposes then you might fudge a bit for the paper, and keep it lower for
> your own peace of mind. John has decided how much weight he can carry
> safely, so he set the passenger seat belt to a length that regulates how
> fat a passenger he can carry. You can't snap the belt, you don't go flyin
g.
> I can't fly with him!
>
> I believe that you said that it weighed about 760 empty. 600's would be a
> bit more normal for weight. Just keep in mind that the heavier it is, the
> more like a low end GA plane it flies, and the less fun it is to fly.
>
> I was selling a Mark III once to a pretty chunky guy. He had crashed his
> brothers ultra light and was going to buy mine to replace it. I weighed 2
40
> and I asked him how much he weighed and he said 235. Yah! I bet he was
> tipping close to 300. I was on the Alvord Desert which was 11 miles long
> at that point, so I figured that worst come to worst we could drive it
> around. I got it up to 60 MPH, and it wouldn't go any faster and didn't
> lift off where it normally did, so I looked over at him and asked- "How
> much did you say you weighed?" He stuck with 235, so I sucked in my own
> gut, gave it a yank up into ground effects and we went flying- very
> carefully! I can say that landing was as smooth as I had ever done since
we
> had enough inertia to not get slowed into a stall.
>
> Almost all planes, especially those by Kolb have a pretty Conservative
> limit built in. However abuse can be accumulative.
>
> Hang in there some one is bound to look at their computer soon and give
> you a definitive answer.
> Larry
>
>
> On Thu, Feb 8, 2018 at 4:24 PM, John Darke <jbdarke@gmail.com> wrote:
>
>> Looking at the web site, it says 1000 pound gross and later says 1100
>> pounds.
>>
>> http://www.kolbaircraft.com/markiiixtra.htm
>>
>> Somewhere, I have seen 1150 pounds. "Do I hear 1200 pounds?"
>>
>> John
>> Punta Gorda, FL
>>
>> On Thu, Feb 8, 2018 at 5:12 PM, John Darke <jbdarke@gmail.com> wrote:
>>
>>> Just purchased a Kolb Mark III Xtra with 81 HP Rotax and BRS Chute. Th
e
>>> weight and balance indicates a total weight of 748 pounds (seems high).
>>>
>>> Can someone comment on the gross weight of this aircraft. The original
>>> Gross Weight I saw was 1000 pounds with an empty weight of 490 pounds.
>>>
>>> I also saw 1150 as gross weight. Comments will be welcome.
>>>
>>>
>>>
>>> --
>>> *John Darke, 72 Sabal Drive - Punta Gorda, FL 33950
>>> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+339
50+-%C2%A0941&entry=gmail&source=g>-
>>> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+339
50+-%C2%A0941&entry=gmail&source=g>941-676-0429
>>> <(941)%20676-0429>*
>>>
>>
>>
>>
>> --
>> *John Darke, 72 Sabal Drive - Punta Gorda, FL 33950
>> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+3395
0+-%C2%A0941&entry=gmail&source=g>-
>> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+3395
0+-%C2%A0+%3Chttps://maps.google.com/?q%3D72%2BSabal%2BDrive%25C2%25A0-%2BP
unta%2BGorda,%2BFL%2B33950%2B-%25C2%25A0941%26entry%3Dgmail%26source%3Dg%3E
941&entry=gmail&source=g>941-676-0429
>> <(941)%20676-0429>*
>>
>
>
> --
> *The older I get, the less tolerant I am of those who are intolerant of
> others.*
>
> *If you forward this email, or any part of it, please remove my email
> address before sending.*
>
--
*John Darke, 72 Sabal Drive - Punta Gorda, FL 33950 - 941-676-0429*
Message 5
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| Subject: | Re: Kolb Mark III Xtra with 81 HP Rotax |
John
748 pounds seems a bit high. My VW powered MKIIIC weighs 588 pounds. My
plane is fully enclosed, it has a VW it has a bunch of things that make it
heavier but I worked very hard to make it as light as possible. Most of
these things you can do now to make your plane lighter. My hard and fast
rule was if it didn't NEED to be on my plane it got removed. There are
thousands of things. Like, there is a recoil start guide ring and starter
rope pulley mount, cut them off. Never use washers to fix a bolt that is
too long. never have bolt showing more than 1 1/2 threads. I also changed
to a lithium FE starting battery that weighs about one pound. Again there
are thousand of things that will make your plane lighter and fly better but
never ever make it weaker or less safe.
As for the gross weight it was and still is 1000 lbs. Yes there is
considerable margen for being slammed around in rough air for thousands of
hours. I added a few things to the wings to strengthen the outer ribs and
added jury struts. I have increased my gross weight to 1050 pounds and some
have gone to as much as 1200 pounds but is that safe? As the builder I'm
comfortable with 1050 lbs and have flown in smooth air and being gentle on
the controls with close to 1200 lbs but on a regular basis no way. How well
was yours built? Do you know? It really isn't worth gambling a love one's
life.
Rick Neilsen
Redrive VW Powered MKIIIC
South Venice, FL
On Thu, Feb 8, 2018 at 6:24 PM, John Darke <jbdarke@gmail.com> wrote:
> Looking at the web site, it says 1000 pound gross and later says 1100
> pounds.
>
> http://www.kolbaircraft.com/markiiixtra.htm
>
> Somewhere, I have seen 1150 pounds. "Do I hear 1200 pounds?"
>
> John
> Punta Gorda, FL
>
> On Thu, Feb 8, 2018 at 5:12 PM, John Darke <jbdarke@gmail.com> wrote:
>
>> Just purchased a Kolb Mark III Xtra with 81 HP Rotax and BRS Chute. The
>> weight and balance indicates a total weight of 748 pounds (seems high).
>>
>> Can someone comment on the gross weight of this aircraft. The original
>> Gross Weight I saw was 1000 pounds with an empty weight of 490 pounds.
>>
>> I also saw 1150 as gross weight. Comments will be welcome.
>>
>>
>>
>> --
>> *John Darke, 72 Sabal Drive - Punta Gorda, FL 33950
>> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+33950+-%C2%A0941&entry=gmail&source=g>-
>> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+33950+-%C2%A0941&entry=gmail&source=g>941-676-0429
>> <(941)%20676-0429>*
>>
>
>
> --
> *John Darke, 72 Sabal Drive - Punta Gorda, FL 33950
> <https://maps.google.com/?q=72+Sabal+Drive%C2%A0-+Punta+Gorda,+FL+33950+-%C2%A0941&entry=gmail&source=g>-
941-676-0429
> <(941)%20676-0429>*
>
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