Today's Message Index:
----------------------
1. 03:58 AM - Re: My recent trip to TNK Homecoming 2004 (John Cooley)
2. 04:02 AM - Re: Hurricane (John Cooley)
3. 04:16 AM - Re: 2003 twinstar (John Cooley)
4. 05:45 AM - Re: Superman (PATRICK LADD)
5. 06:04 AM - Tail Post, MK III (John Hauck)
6. 06:29 AM - Re: 2003 twinstar (PATRICK LADD)
7. 06:57 AM - Twins Are Not Infallible (John Hauck)
8. 07:33 AM - Re: Throttle conversion (Richard & Martha Neilsen)
9. 08:02 AM - Re: Throttle conversion (Carl Trollope)
10. 08:46 AM - Re: Firefly: Tires and nose over tendency/mountain bike brakes (David Paule)
11. 09:03 AM - Re: Throttle conversion (Richard Pike)
12. 11:12 AM - Re: Throttle conversion (PATRICK LADD)
13. 12:42 PM - Re: Throttle conversion (John Cooley)
14. 12:49 PM - SERFI (John Hauck)
15. 01:07 PM - Re: Throttle conversion (Richard Pike)
16. 01:14 PM - TNK Homecoming 2004 Photos (John Williamson)
17. 01:29 PM - Re: Hull insurance on non flying MKIII (N27SB@aol.com)
18. 03:04 PM - Re: Vortex Generators (Silver Fern Microlights Ltd)
19. 03:04 PM - Evergreen AL (Doug Lawton)
20. 03:31 PM - Re: Kolb/Jabi (Silver Fern Microlights Ltd)
21. 04:52 PM - Re: Vortex Generators (Land Shorter)
22. 05:10 PM - Re: Airport Access (dama)
23. 05:59 PM - Re: Hull insurance on non flying MKIII (Ian Heritch)
24. 06:16 PM - Harley's and Kolbs .... (artdog1512)
25. 08:17 PM - Re: Harley's and Kolbs .... (HShack@aol.com)
26. 09:47 PM - Re: Harley's and Kolbs .... (robert bean)
27. 10:19 PM - Re: Prop Calculations (George Bass)
Message 1
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| Subject: | My recent trip to TNK Homecoming 2004 |
--> Kolb-List message posted by: "John Cooley" <johnc@datasync.com>
John H,
What happened to her tail? You were off the list for awhile after Ivan and I
must have missed your post if you posted anything about it. Did something
happen to it during the storm. I know there were a lot of tornado's from it
also. Glad to see your up and running again, on the Kolb list I mean.
Later,
John Cooley
do not archive
--> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
photos taken
| at the Homecoming.
| John Williamson
Hi John W/Gang:
Enjoyed looking at and reliving the recent Kolb Homecoming.
Thanks for posting the picture of Gantt IAP. Miss P'fer wasn't too
happy about staying at home and missing all the fun, but couldn't do
any better with no tail.
Message 2
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--> Kolb-List message posted by: "John Cooley" <johnc@datasync.com>
Richard,
Sounds like you were very fortunate and blessed. Glad to hear the damage was
minor.
John Cooley
do not archive
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]On Behalf Of Richard
Swiderwski
Subject: RE: Kolb-List: Hurricane
--> Kolb-List message posted by: "Richard Swiderwski"
<rswiderski@earthlink.net>
Kolbers,
We got electricity & phone back. George's FS & my SS survived #4!
Had some minor damage to the shop & will spend the next several weekends
picking up. County has been declared a disaster area.
Richard Swiderski
Ocala FL
Do not archive
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of H MITCHELL
Subject: Kolb-List: Hurricane
--> Kolb-List message posted by: "H MITCHELL" <mitchmnd@msn.com>
The big four have come and gone and we were lucky here in Tallahassee.
Jeanne passed through as a windy rain storm. My Mk3 sat snug in her hangar
and we didn't loose a single shingle from our house. Sure hope you boys down
south and west did as well and that the balance of this season is more
gentle to us all.
I am planning to go to my hangar on Wednesday morning for more stall testing
if the weather gets just a little better.
Duane the plane Mitchell, Tallahassee, FL
do not archive
Message 3
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--> Kolb-List message posted by: "John Cooley" <johnc@datasync.com>
Tom Yilk and Gang,
I believe there are a couple of different models of the Twinstars. I have
had two and both were the Twinstar MK II that are completely enclosed. I
believe they evolved from the original open cockpit with nose pod and
windshield Twinstar that Woody must be referring to. The Twinstar MK II is a
little difficult to get in and out of, but not hard, and would not make a
good camera plane. Other than that I agree with Woody. The tail dragger part
is a non issue. My MK II has better roll response than my Firestar II. It
doesn't sit at high of an angle as the Firestar though so it takes a little
more runway to get air born. It is a good flying airplane.
Later,
John Cooley
do not archive
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]On Behalf Of woody
Subject: Re: Kolb-List: 2003 twinstar
--> Kolb-List message posted by: "woody" <duesouth@govital.net>
I enjoy my twinstar. It is powered by the 55 h p Hirth. Expect a cruise of
60-65. I would not take a Challenger. I flew 2 of them last winter and they
scared me to death. The Kolb is gentle and a high performer a very unusual
combination. The Challenger is aptly named and you will constantly be
chasing the wandering front nose all the time. Ignore the comments pointing
out that Kolb is a tail dragger. That is only true for the first 50 feet
while the tail is down. After that it is a non issue. Kolbs are the most
forgiving tail draggers out there. Buy the Twinstar and have a great time.
Lets not forget the quick folding of the Kolb. I can do my Twinstar in under
15 minutes. One more unmentioned point about the Twinstar is it's easy
entry. Just walk into the frame and sit down. No crawling around and pulling
you feet in or any of the other contortions getting into any other aircraft.
It is also the best camera plane out there.
----- Original Message -----
From: "Tom Yilk" <bmwon@charter.net>
Subject: Kolb-List: 2003 twinstar
> --> Kolb-List message posted by: "Tom Yilk" <bmwon@charter.net>
>
> Hi out there I'm new to the list,
> I would like to get a fat ultra lite or a plane that will qualify as a
sport
> plane
> Is a good twinstar with a 503 single carb a good choice for a starter
> plane.
> What kind of cruse speed can I expect, I will usually be flying by myself.
> I have followed klob over the years and have looked at many others. I'm
also
> looking at a challanger but the twinstar looks better to me.
> Please educate me on the pros and cons of the Klob twinstar.
> Thanks
> Tom Yilk
> Hasting NE
>
>
Message 4
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--> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
Outrageous ride! -also check out the guy hanggliding over mt everest
in the current kitplanes mag. ->>
Hi all,
towed up there by a microlight no less.
The microlight pilot was one of our (UK) leading fliers with all sorts of
records under his belt.
The idea was to tow a hang glider over Everest but unfortunately the tow
rope broke. The microlight continued his climb and flew over and around the
summit.
Great stuff.
Pat
Message 5
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| Subject: | Tail Post, MK III |
--> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
Hi John C/Ralph B/All:
I changed the subject line.
Discovered a broken lower tailpost a couple hours flight time after
return from Alaska. Between oral surgery, Ivan, and cleanup, was not
able to get it removed, repaired, recovered, and refinished, prior to
the Kolb Homecoming 2004. Attribute the failure to a lot of hours,
lot of weight, and a lot of rough fields. Plan to have her flying in
time to fly to Lucedale for Ronnie Smith's Annual October Flyin about
15 Oct. This will be the third year in a row I have had to pull the
tail section, a major job. Hoping to get it reinforced and beefed up
to prevent failure in the future. Primary problem is side loading of
the tailpost, which is .035 wall 4130 and no lateral bracing to speak
of. Haven't decided, for sure, how we will go about repair, but have
been thinking about 4130 strip welded up each side of the lower
tailpost to provide lateral strength. We already had two large
gussets at the upper rear. The post failed at the bottom of the
gussets about 4 or 5 inches above the intersection of the lower
vertical stabilizer bottom tube. Fabric did a good job of holding
things in place, but would not try to intentionally fly it in its
present condition, by any means.
Take care,
john h
PS: Heading down to Evergreen, AL, and SERFI this afternoon, if I get
all my stuff done. If not, I will drive down in the morning or maybe
late tonight.
Message 6
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| Subject: | Re: 2003 twinstar |
--> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
Tom Yilk,
I can`t let the Challenger take such a pounding without a word in its
defence. It is not perfect. It is difficult to get in and out. Mind you it
was not as difficult 10 years ago.
I built mine without doors so it can be a little fresh in winter.
Nevertheless the windscreen protects you well in the front seat. A bit
draughty around the shoulders in the rear seat. Use the door option for more
comfort.
It is fairly nippy compared to other 503 driven a/c. I cruise between 60 and
75 KNOTS. It is thirsty, about 16 litres an hour, but so are most 2 strokes.
The kit is pre assembled at works and drilled. It is then knocked to pieces
and all you have to do is bolt it back together.
Needs no jigs. The main keel/ fuselage is welded up in one piece so you
cannot build a skewed machine. Rivetting is fairly limited.
My brother and I built it in 700 hours having never built one before.In the
Staes I believe that bigger lumps arrive already prefabricated than in the
UK. Covering the wings was done professionally because we chickened out
looking at that great expanse of framework but the fuselage and tail we
covered with no problems.
The trim is by flaperons which means that when you lower the flaps to land
it trims very nose heavy. I dont mind this particularly because I figure
that if a moments inattention puts the speed up during the approach that is
better than slowing up and stalling.
The stall is a non event, merely a mush and easy recovery. Airobatics are
forbidden here but my inspector has thrown mine into vertical wing overs
and would I think loop it if the occasion required. He always lands grinning
form ear to ear.
The passenger has nowhere to put their feet but in the duplicate rudder
pedals. If you have short legs (like my wife) it is a long and uncomfortable
reach.
The tail fin needed an extension forward, rather like a B-17 to improve
arrow stability, but that is probably standard now.
No ground handling problems. Tricycle u/c. Push right to go right. It sits
on its rear wheel at rest. If it doesn`t tip forward onto the main u/c
wheels when you sit in the front cockpit (always fly from the front) then
you have a weight and balance problem.
and you are outside C G limits.
You can fit floats and ski`s.
The view from the cockpit is almost as good as a Kolb, particularly with no
doors.
Anything specific, come back
Cheers
Pat
Do not archive
pj.ladd@btinternet.com
The Challenger needs a bootfull of rudder in the turn. If you are a glider
pilot you will do this automatically. If you have only flown power, you are
going to have to learn how to fly properly.
Message 7
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| Subject: | Twins Are Not Infallible |
--> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
Morning All:
Catching up on a little reading and discovered this one in the FAA
Preliminary Accident Reports, 23 Sep:
PILOT ON TAKE-OFF TURNED ON THE ELECTRIC FUEL PUMP BUT DID NOT TURN ON
THE
MANUAL FUEL PUMP. AFTER ACFT WAS AIRBORNE THE PILOT CUT OFF THE
ELECTRIC
FUEL PUMP AND DID NOT REALIZE THE MANUAL PUMP WAS NOT ENGAGED. ACFT
LANDED
IN A TREE TOP. 9 MI E OF ASHLAND, MS
This aircraft, by the way, was a EXP- LEZA-LOCKWOOD AIRCAM.
Even though it has two good engines, they do not produce power without
fuel. Another scenario would be contaminated fuel being supplied from
the same tank to two engines.
Normally, and very infrequently, our engines do not fail
catastrophically. Usually something simple, like fuel lines, wiring,
throttle cables, etc.
Take care,
john h
DO NOT ARCHIVE
Message 8
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| Subject: | Re: Throttle conversion |
--> Kolb-List message posted by: "Richard & Martha Neilsen" <NeilsenRM@comcast.net>
Carl
Try this, move your approach speed up to 60MPH and keep some power on till
you touch down. You will find that the MKIII will slow down very fast when
you cut the power so don't worry about a long roll out. General aviation
pilots are trained to pull power when they have the field on final. This
doesn't work well in a MKIII till you get real good at it. In fact most of
us mere mortals always land with power on unless there is no power and then
I retract the flaps for landing.
Rick Neilsen
Redrive VW powered MKIIIc
----- Original Message -----
From: "Carl Trollope" <flash_too@yahoo.co.uk>
Subject: RE: Kolb-List: Throttle conversion
> --> Kolb-List message posted by: "Carl Trollope" <flash_too@yahoo.co.uk>
>
> Hi,
>
> from another Brit on the list....
>
> I have just acquired a Mk111 after having thoroughly looked at all other
> options...in the price category...
>
> I chose the Kolb because of its' tremendous view..... short field
> capacity..... and because it is supposed to be the easiest tail dragger
> out
> there
>
> I am in the process of converting to 3 axis from flexwing and only have a
> few hours at the moment but am already impressed with its flying
>
> Mine has a second throttle fitted to the centre tube which means the right
> seat occupant has to fly left hand on stick and reach across with the
> right
> to use the throttle.... not to good an idea.... oh and mine is a
> microlight
> with a 582...
>
> The only other comment concerns the landing which seems to elude its
> previous owner as it appears to blow through the flare every
> time...approaching at 55mph half flap glide approach....??
>
> Carl
>
> -----Original Message-----
> From: owner-kolb-list-server@matronics.com
> [mailto:owner-kolb-list-server@matronics.com]On Behalf Of PATRICK LADD
> To: kolb-list@matronics.com
> Subject: Re: Kolb-List: Throttle conversion
>
>
> --> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
>
> I have recently joined this group, being one of a syndicate of three which
> has bought a flying Kolb Mk.III. This aircraft has the short wings and is
> classed as a Group A aircraft in the UK (ie. not a microlight)>>
>
> Hi Martin,
> Welcome to the list from one of the few Limeys here. I live near Bath and
> I
> am waiting for the delivery of 111 Extra Kit. What made you go for the
> `A`
> cat? I am hoping to install a Jabi on mine which will be a microlight cat.
> I
> have been flying a Eurostar with the 912 for the last year and liked it
> but
> the 912 takes the Extra into Class`A`. Being unwilling to give up the
> foustroke advantages the Jabiru it has to be.
> Have you had much experience with the 111. What sort of performance?
>
> Contact me off line if you like
>
> Pat Ladd
> pj.ladd@btinternet.com
>
> Do not Archive
>
>
>
Message 9
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| Subject: | Throttle conversion |
--> Kolb-List message posted by: "Carl Trollope" <flash_too@yahoo.co.uk>
in my book the flap limiting speed is 55mph.....??
Carl
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]On Behalf Of Richard &
Martha Neilsen
Subject: Re: Kolb-List: Throttle conversion
--> Kolb-List message posted by: "Richard & Martha Neilsen"
<NeilsenRM@comcast.net>
Carl
Try this, move your approach speed up to 60MPH and keep some power on till
you touch down. You will find that the MKIII will slow down very fast when
you cut the power so don't worry about a long roll out. General aviation
pilots are trained to pull power when they have the field on final. This
doesn't work well in a MKIII till you get real good at it. In fact most of
us mere mortals always land with power on unless there is no power and then
I retract the flaps for landing.
Rick Neilsen
Redrive VW powered MKIIIc
----- Original Message -----
From: "Carl Trollope" <flash_too@yahoo.co.uk>
Subject: RE: Kolb-List: Throttle conversion
> --> Kolb-List message posted by: "Carl Trollope" <flash_too@yahoo.co.uk>
>
> Hi,
>
> from another Brit on the list....
>
> I have just acquired a Mk111 after having thoroughly looked at all other
> options...in the price category...
>
> I chose the Kolb because of its' tremendous view..... short field
> capacity..... and because it is supposed to be the easiest tail dragger
> out
> there
>
> I am in the process of converting to 3 axis from flexwing and only have a
> few hours at the moment but am already impressed with its flying
>
> Mine has a second throttle fitted to the centre tube which means the right
> seat occupant has to fly left hand on stick and reach across with the
> right
> to use the throttle.... not to good an idea.... oh and mine is a
> microlight
> with a 582...
>
> The only other comment concerns the landing which seems to elude its
> previous owner as it appears to blow through the flare every
> time...approaching at 55mph half flap glide approach....??
>
> Carl
>
> -----Original Message-----
> From: owner-kolb-list-server@matronics.com
> [mailto:owner-kolb-list-server@matronics.com]On Behalf Of PATRICK LADD
> To: kolb-list@matronics.com
> Subject: Re: Kolb-List: Throttle conversion
>
>
> --> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
>
> I have recently joined this group, being one of a syndicate of three which
> has bought a flying Kolb Mk.III. This aircraft has the short wings and is
> classed as a Group A aircraft in the UK (ie. not a microlight)>>
>
> Hi Martin,
> Welcome to the list from one of the few Limeys here. I live near Bath and
> I
> am waiting for the delivery of 111 Extra Kit. What made you go for the
> `A`
> cat? I am hoping to install a Jabi on mine which will be a microlight cat.
> I
> have been flying a Eurostar with the 912 for the last year and liked it
> but
> the 912 takes the Extra into Class`A`. Being unwilling to give up the
> foustroke advantages the Jabiru it has to be.
> Have you had much experience with the 111. What sort of performance?
>
> Contact me off line if you like
>
> Pat Ladd
> pj.ladd@btinternet.com
>
> Do not Archive
>
>
Message 10
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| Subject: | Re: Firefly: Tires and nose over tendency/mountain bike brakes |
--> Kolb-List message posted by: "David Paule" <dpaule@frii.com>
Gregg Waligroski uses them (hydraulic disk brakes for mountain bikes) on
his FS II. After seeing his I've got a set for mine but haven't installed
them yet.
Dave Paule
Boulder, CO
FS II (No, still haven't flown it....)
> Noticed some deals on Mountain bike brakes on Ebay. Anybody tried them on
> our kolbs? I keep trying!!:-) Herb
Message 11
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| Subject: | Throttle conversion |
--> Kolb-List message posted by: Richard Pike <richard@bcchapel.org>
Unless you have arms like Popeye, getting the flaps down at speeds over 55
is probably not going to happen. When I had the original flaps on my MKIII,
I would do a "dipsy-doodle," lower the flaps while the airspeed was down,
and then go ahead and shoot the approach at 60.
55 is about the minimum speed for approach solo, 60 if you are carrying a
passenger, and 65 actually gives a better round out and touchdown. With
vortex generators, 55 works very nicely two up, and I can fly the approach
at 45 solo.
Don't remember what the book says, but I know what works...
Richard Pike
MKIII N420P (420ldPoops)
do not archive
At 03:57 PM 9/30/2004 +0100, you wrote:
>--> Kolb-List message posted by: "Carl Trollope" <flash_too@yahoo.co.uk>
>
>in my book the flap limiting speed is 55mph.....??
>
>Carl
>
>-----Original Message-----
>From: owner-kolb-list-server@matronics.com
>[mailto:owner-kolb-list-server@matronics.com]On Behalf Of Richard &
>Martha Neilsen
>To: kolb-list@matronics.com
>Subject: Re: Kolb-List: Throttle conversion
>
>
>--> Kolb-List message posted by: "Richard & Martha Neilsen"
><NeilsenRM@comcast.net>
>
>Carl
>
>Try this, move your approach speed up to 60MPH and keep some power on till
>you touch down. You will find that the MKIII will slow down very fast when
>you cut the power so don't worry about a long roll out. General aviation
>pilots are trained to pull power when they have the field on final. This
>doesn't work well in a MKIII till you get real good at it. In fact most of
>us mere mortals always land with power on unless there is no power and then
>I retract the flaps for landing.
>
>Rick Neilsen
>Redrive VW powered MKIIIc
>
>----- Original Message -----
>From: "Carl Trollope" <flash_too@yahoo.co.uk>
>To: <kolb-list@matronics.com>
>Subject: RE: Kolb-List: Throttle conversion
>
>
> > --> Kolb-List message posted by: "Carl Trollope" <flash_too@yahoo.co.uk>
> >
> > Hi,
> >
> > from another Brit on the list....
> >
> > I have just acquired a Mk111 after having thoroughly looked at all other
> > options...in the price category...
> >
> > I chose the Kolb because of its' tremendous view..... short field
> > capacity..... and because it is supposed to be the easiest tail dragger
> > out
> > there
> >
> > I am in the process of converting to 3 axis from flexwing and only have a
> > few hours at the moment but am already impressed with its flying
> >
> > Mine has a second throttle fitted to the centre tube which means the right
> > seat occupant has to fly left hand on stick and reach across with the
> > right
> > to use the throttle.... not to good an idea.... oh and mine is a
> > microlight
> > with a 582...
> >
> > The only other comment concerns the landing which seems to elude its
> > previous owner as it appears to blow through the flare every
> > time...approaching at 55mph half flap glide approach....??
> >
> > Carl
Message 12
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| Subject: | Re: Throttle conversion |
--> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
. With
vortex generators, 55 works very nicely two up, and I can fly the approach
at 45 solo.>>
Richard,
that is really interesting. What sort of vortex generators? How many? Where
and how fitted?
Pat
pj.ladd@btinterntet.com
Do not archive
Message 13
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| Subject: | Throttle conversion |
--> Kolb-List message posted by: "John Cooley" <johnc@datasync.com>
Pat,
You can read all about Richard's VG's and other mods to his MK III at his
very nice web site. It is http://www.bcchapel.org/pages/0003/kolb.htm Hope
this helps some.
P.S. I tried sending this directly to you but it bounced for some reason.
Later,
John Cooley
do not archive
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]On Behalf Of PATRICK LADD
Subject: Re: Kolb-List: Throttle conversion
--> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
. With
vortex generators, 55 works very nicely two up, and I can fly the approach
at 45 solo.>>
Richard,
that is really interesting. What sort of vortex generators? How many? Where
and how fitted?
Pat
pj.ladd@btinterntet.com
Do not archive
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--> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
Hi All:
Time to crank the old Cummins and head south. I got back from Ky and
Tn last night after dark, and spent the day today unloading, washing,
and reloading stuff. I'll be in Evergreen, Al, at the SE EAA Regional
Fly In, or something like that until Sun. Then return to hauck's
holler and take it easy a couple a days before I get back to my chores
and repair of Miss P'fer's tailpost. I sure miss flying her,
especially to flyins.
I volunteered, after some serious arm twisting, to help judge heavy
experimental homebuilts. Will be a first for me and something new to
learn. Pay back time. I have had a lot of volunteers judging my
airplanes over the years.
See ya'll at Evergreen.
john h
DO NOT ARCHIVE
Message 15
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| Subject: | Re: Throttle conversion |
--> Kolb-List message posted by: Richard Pike <richard@bcchapel.org>
There are several pages of mods, click on "vortex generators."
http://www.bcchapel.org/pages/0003/kolb.htm
At 07:12 PM 9/30/2004 +0100, you wrote:
>--> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
>
>. With
>vortex generators, 55 works very nicely two up, and I can fly the approach
>at 45 solo.>>
>
>Richard,
>that is really interesting. What sort of vortex generators? How many? Where
>and how fitted?
>
>Pat
>
>pj.ladd@btinterntet.com
>
>Do not archive
>
>
Message 16
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| Subject: | TNK Homecoming 2004 Photos |
--> Kolb-List message posted by: "John Williamson" <kolbrapilot@comcast.net>
Fellow Kolbers,
As you can see from my webpages, I had one perspective of the Fly-In. I
would like to put together another page with photos from the rest of you
that attended which will show some other perspectives.
If you don't mind your photos being posted on the web, please send me your
photos in a medium to high resolution (1000 to 2000 dpi) wide.
Please send them to the following email address and include the word Kolb in
the subject line:
kolbrapilot@comcast.net
I will try and use as many as I can.
Thanks,
John Williamson
Arlington, TX
Kolb Kolbra, Rotax 912ULS, 682 hours
http://home.comcast.net/~kolbrapilot
Zenith CH701 Project
http://home.comcast.net/~stol_airplane
http://www.zenithair.com/bldrlist/profiles/stol_airplane
do not archive
Message 17
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| Subject: | Re: Hull insurance on non flying MKIII |
--> Kolb-List message posted by: N27SB@aol.com
Sorry to bring this question up again but,
Bryan Melborn sold a used MKIII to someone that is not acurrent pilot but
wants to insure it while it is under repair in a hanger and not being flown.
Any ideas?
Steve B
do not archive
Message 18
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| Subject: | Re: Vortex Generators |
--> Kolb-List message posted by: "Silver Fern Microlights Ltd" <kiwimick@sfmicro.fsnet.co.uk>
Hi Guys,
I have just purchased and fitted some VGs from Harrison designs, little
lexan type, they are fitted to our Xtra demonstrator in the UK.
I did the first flight of the test schedule today for gaining approval of
these and were very impressed.
I decided to choose these over the origional idea of aluminium leading edge
cap to get a reduction of stall speed.
Prior to fitting, the indicated stall speed was 30kt no flap,
27kt 1 flap, and 25kt full flap.
today's test with VG's fitted, at the same weight and height the following
was recorded 26kt no flap, 24kt 1 flap, 20kt full flap.
The aircraft lifted off at, and flared to a lower speed than without the
VG's.
So far so good.
Mike
----- Original Message -----
From: "PATRICK LADD" <pj.ladd@btinternet.com>
Subject: Re: Kolb-List: Throttle conversion
> --> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
>
> With
> vortex generators, 55 works very nicely two up, and I can fly the approach
> at 45 solo.>>
>
> Richard,
> that is really interesting. What sort of vortex generators? How many?
Where
> and how fitted?
>
> Pat
>
> pj.ladd@btinterntet.com
>
> Do not archive
>
>
Message 19
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3.60 ALT_MED Misspelled medication name
--> Kolb-List message posted by: "Doug Lawton" <skyrider2@earthlink.net>
Hey John H,
Mapquest shows two Evergreens. Conecuh & Autauga. Which one is correct?
We've got a GTA contest going on this weekend at our place, but maybe I can
slip away........
Fly Safely,
Doug Lawton
Matthews Field & Gliderport
Whitwell TN
Message 20
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--> Kolb-List message posted by: "Silver Fern Microlights Ltd" <kiwimick@sfmicro.fsnet.co.uk>
Gidday guys,
I am also fitting a Jab 2200 to a Mk3 Xtra.
I have done a bit of research on it and agree too, that like any other
aircooled pusher, prolonged stationary running will cause the engine to heat
up.
I do not know what serial # john's engine was but the latest engines produce
more power and cool better than the earlier ones. Also the Warp Drive prop
is not the best option for a jabiru engine. I believe that Dallas Sheppard
was very happy with his Classic/Jabiru with a Prince Prop, we are trying a
GT prop on ours. There are plenty of Titan Tornado's with Jab 2200 and 3300
engines happily operating in the USA.
Medway also successfully fit the 2200 to flexwing trikes here in the UK and
they only cruise at 55-60kt. They did however have heating problems when
they moved the fuel tank which blocked the airflow to the engine.
As John said BIG air intakes are useful.
Mike
----- Original Message -----
From: "Jerry Curtin" <jcurtin@cableone.net>
Subject: Re: Kolb-List: Kolb/Jabi
> --> Kolb-List message posted by: "Jerry Curtin" <jcurtin@cableone.net>
>
> John, Thanks for the insight on the Jabiru engines. It's info like this
that
> I was hoping to really get into at the fly in but this is just as good.
You
> say that the 100hp is a little overkill. Will the 80hp do as well with a
cs
> prop? Craig Nelson has designed a beautiful cowl for the 912 and it sure
> cleans up the plane a bunch. Hope to talk to you again soon. Would it be
ok
> to call? Thanks again, Jerry
> ----- Original Message -----
> From: "John Williamson" <kolbrapilot@comcast.net>
> To: <kolb-list@matronics.com>
> Subject: RE: Kolb-List: Kolb/Jabi
>
>
> > --> Kolb-List message posted by: "John Williamson"
> <kolbrapilot@comcast.net>
> >
> > Hi Pat and all prospective Jabiru fliers,
> >
> > You have about 5 minutes of ground run time before the CHT's hit their
> > limits.
> >
> > In the air, you have to use the company furnished air cowlings for
proper
> > cooling. At speeds below 90 knots you can only run at 2800 rpm or higher
> for
> > short lengths of time before the CHT's again exceed their limits.
> >
> > You will most likely not be satisfied with the climb and cruise
> performance
> > you get from the Jabiru when installed on a Kolb MarkIII Xtra, Classic
or
> a
> > Kolbra. These airframes just can't sustain the speed needed to keep the
> > CHT's down.
> >
> > If you use a Jabiru engine and it isn't what you expected, please don't
> > blame it on the airframe you put it on.
> >
> >
> > John Williamson
> > Arlington, TX
> >
> > Kolb Kolbra, Rotax 912ULS, 682 hours
> > http://home.comcast.net/~kolbrapilot
> > Zenith CH701 Project
> > http://home.comcast.net/~stol_airplane
> > http://www.zenithair.com/bldrlist/profiles/stol_airplane
> >
> > do not archive
> >
> >
>
>
Message 21
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| Subject: | Re: Vortex Generators |
--> Kolb-List message posted by: Land Shorter <landshorter2@yahoo.com>
Glad to hear it Mike! I get reports like this all the time and it's always great
to hear from satisfied customers. Keep up that testing, VG's are just the
ticket for the UK Approval.
Joa
www.landshorter.com
Silver Fern Microlights Ltd <kiwimick@sfmicro.fsnet.co.uk> wrote:
--> Kolb-List message posted by: "Silver Fern Microlights Ltd"
Hi Guys,
I have just purchased and fitted some VGs from Harrison designs, little
lexan type, they are fitted to our Xtra demonstrator in the UK.
I did the first flight of the test schedule today for gaining approval of
these and were very impressed.
I decided to choose these over the origional idea of aluminium leading edge
cap to get a reduction of stall speed.
Prior to fitting, the indicated stall speed was 30kt no flap,
27kt 1 flap, and 25kt full flap.
today's test with VG's fitted, at the same weight and height the following
was recorded 26kt no flap, 24kt 1 flap, 20kt full flap.
The aircraft lifted off at, and flared to a lower speed than without the
VG's.
So far so good.
Mike
----- Original Message -----
From: "PATRICK LADD"
Subject: Re: Kolb-List: Throttle conversion
> --> Kolb-List message posted by: "PATRICK LADD"
>
> With
> vortex generators, 55 works very nicely two up, and I can fly the approach
> at 45 solo.>>
>
> Richard,
> that is really interesting. What sort of vortex generators? How many?
Where
> and how fitted?
>
> Pat
>
> pj.ladd@btinterntet.com
>
Message 22
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| Subject: | Re: Airport Access |
--> Kolb-List message posted by: "dama" <dama@mindspring.com>
Chuck, I have had an experience along these lines. We had 4 "ultralights" on
the field. Along comes a new City Manager who wanted more tax revenue by
having more expensive planes in the hangars. He cunningly rewrote the lease
which requires FAA registration and more importantly, liability insurance.
Now, I am the only one left because I am have all of the documents. If he
tried to run me out, I would probably have a case against him but the others
just gave up and went elsewhere. Unfortunately, I just deleted from my
"favorites" the portion of the FAA website that talks about the requirements
to receive federal funding. I'd say that if you have an "n" number, you
should not be discriminated against...
Kip
http://www.springeraviation.net/
----- Original Message -----
From: "Comcast" <davis207@comcast.net>
Subject: Kolb-List: Airport Access
> --> Kolb-List message posted by: Comcast <davis207@comcast.net>
>
> I've recently moved, and am looking for a new home for the Firefly.
> While it can stay put, I'd rather not have to drive 60 miles each way.
>
> I've started checking local airports arounf here (Phoenixville, PA).
> Perkiomen (N10) looked very promising; close, small and friendly.
> Today, I called and spoke with the manager, who was real nice untill I
> said "ultralight". The response was "we don't allow ultralights". If I
> N-numbered it, he did allow that he'd be willing to "take a look at it."
>
> I understand you attract more flies with honey then vineger, and was
> very polite with him. He said he'd had ultralights crash and people get
> killed, and he's fielded calls from an angry wife accusing him of having
> "killed my husband." Also, he says, no matter what happened, even away
> from the airport, the airport's name "gets dragged into it." I told him
> I understood, and did not press the issue. He says he just doesn't want
> any more of "those calls."
>
> While I can hardly force him to rent me a hanger, I'd like to know the
> rules regarding access. My understanding from a scan of the archives is
> that public airports (registered, not owned...this is a privately owned,
> public use airport) can not prohibit legal activity. A few questions if
> any one can direct me:
>
> 1. Is there a regulation that is explicit about this?
> 2. Is it dependent upon them ever receiving federal money?
> 3. How can I find out if they have received federal monay?
>
> Thanks,
>
> Chuck
>
>
Message 23
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| Subject: | Re: Hull insurance on non flying MKIII |
--> Kolb-List message posted by: "Ian Heritch" <iheritch@satx.rr.com>
I don't think you need to be a certificated pilot to insure an aircraft whether
in motion or not. Of course, if the aircraft is put into motion then the pilot
(does not need to be the owner) becomes an issue.
Your friend can call any aircraft insurance broker to arrange coverage. I have used Falcon Insurance, www.falconinsurance.com (the official EAA outlet) and AVEMCO www.avemco.com to insure aircraft under construction and recommend both. There are others out there.
Ian Heritch
----- Original Message -----
From: <N27SB@aol.com>
Subject: Re: Kolb-List: Hull insurance on non flying MKIII
> --> Kolb-List message posted by: N27SB@aol.com
>
> Sorry to bring this question up again but,
> Bryan Melborn sold a used MKIII to someone that is not acurrent pilot but
> wants to insure it while it is under repair in a hanger and not being flown.
> Any ideas?
>
> Steve B
> do not archive
>
>
Message 24
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| Subject: | Harley's and Kolbs .... |
--> Kolb-List message posted by: artdog1512 <nazz57@yahoo.com>
ya know,
i was just at the Hog-Air website.. i wonder if
one of those HD engines would work on a MK3? seems
like they're loaded with torque and plenty of HP.
weight wise, i figure if you can put a 912 or Jab on a
MK3 why not a HD engine? ....... tim
_______________________________
Declare Yourself - Register online to vote today!
http://vote.yahoo.com
Message 25
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| Subject: | Re: Harley's and Kolbs .... |
--> Kolb-List message posted by: HShack@aol.com
In a message dated 9/30/2004 9:17:27 PM Eastern Standard Time,
nazz57@yahoo.com writes:
i was just at the Hog-Air website.. i wonder if
one of those HD engines would work on a MK3? seems
like they're loaded with torque and plenty of HP.
weight wise, i figure if you can put a 912 or Jab on a
MK3 why not a HD engine? ....... tim
In "Ultraflight Magazine" [last issue], it said the weight was 214 lbs. I
think it's too heavy.
Said the cost will be $22,000 to $24,000. Too much for me.
Howard Shackleford
FS II
SC
Message 26
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| Subject: | Re: Harley's and Kolbs .... |
--> Kolb-List message posted by: robert bean <slyck@frontiernet.net>
But on the positive side they come with a chrome drip pan.
Besides, Harley's don't have do really do anything, just look good
and sound cool. -BB definitely do not archive
On 30, Sep 2004, at 11:16 PM, HShack@aol.com wrote:
> --> Kolb-List message posted by: HShack@aol.com
>
> In a message dated 9/30/2004 9:17:27 PM Eastern Standard Time,
> nazz57@yahoo.com writes:
> i was just at the Hog-Air website.. i wonder if
> one of those HD engines would work on a MK3? seems
> like they're loaded with torque and plenty of HP.
> weight wise, i figure if you can put a 912 or Jab on a
> MK3 why not a HD engine? ....... tim
>
> In "Ultraflight Magazine" [last issue], it said the weight was 214
> lbs. I
> think it's too heavy.
>
> Said the cost will be $22,000 to $24,000. Too much for me.
>
> Howard Shackleford
> FS II
> SC
>
>
> _-
> =======================================================================
> _-
> =======================================================================
> _-
> =======================================================================
> _-
> =======================================================================
> >
>
>
Message 27
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| Subject: | Re: Prop Calculations |
--> Kolb-List message posted by: "George Bass" <gtb@commspeed.net>
Since there is always some discussion, from
time-to-time, regarding propellers & their
performance & sizes, I thought I should pass
this along (copied from another e-mail list).
I hope it doesn't cloud the air anymore, but,
may actually help some of us to understand
more about some of the equipment we use.
---------------- Begin forwarded message ------------------
I "borrowed" this post, made by Robert
Metzler to the Engines-UL group. It is
very good. I am trying to determine the
absolute best prop for my MZ 202 on the
Tiger Cub right now.
BlueMax
--- In engines-ul@yahoogroups.com,
Robert Metzler <sleepy6@a...> wrote:
Generally, the larger the diameter of the prop, the more
efficient it will be. As airspeed increases, efficiency
loss becomes less, but, at UL & SP speeds it is very
important to use as large a diameter as possible. Of
course, you still need clearance at the prop tips, so we
have a physical limitation to consider.
Be very cautious if a prop supplier recommends a
smaller diameter prop.
Next, we have to consider the gearbox ratio. As prop
tip speed increases, the efficiency gets lower & the prop
gets noisier. For reasonable efficiency we want to limit
the maximum speed of the prop tips to about 750-800
feet per second, depending on which expert you listen
to. Lets be conservative & figure 750 fps X 60 seconds
= 45,000 feet per minute. For a 68" prop to turn once,
the tips will travel 68" X 3.1417 = 213.6356 inches.
213.6356 inches divided by 12 = 17.803 feet. If we
divide 45,000 by 17.803 = 2527.66 maximum prop RPM.
If the maximum engine RPM is 6,800, we can divide that
by 2527.66 to get a desired gear ratio of 2.69:1. Rotax
offers ratios of 2.62:1, 3.00:1, 3.47:1 & 4.00:1 for their
"C" box, so we'd choose 2.62:1. Change those figures
above to fit your prop diameter.
Be very cautious of a supplier that recommends a ratio
different from what you calculated.
The "C" box has a maximum allowable mass moment of
inertia of 6000 KGCM2, which may limit the size of the
prop you can use. Ask the prop supplier, what the
mass moment of inertia figure is for the prop that he is
recommending. Then, ask him if you can return the
prop if his figure is wrong. There have been cases of
that happening.
The prop has to convert the engine HP to thrust by twist-
ing the blade so that the blade forces air to the rear. The
more twist to the blade (called pitch), the more HP it takes
to turn the blade to max speed. The amount of pitch that
is required, is determined by the airspeed of the plane.
A powered parachute is really slow, so the proper pitch
on that prop would be very slight. A Titan, on the other
hand, is pretty fast, so it would use more pitch on the prop.
If both props were the same dia, the powered parachute
engine would over rev, because of the light engine load.
More blades would be required to prevent over reving at
very low air speeds, very small prop dia, or very large
engines. Generally, the fewer the blades on the prop,
the more efficient it is. Look around at other ULs.
Be very cautious if a prop supplier suggests more blades
than you see on similar plane/engine combinations.
Some other factors that will affect efficiency of a pusher
prop include the amount of the prop disk blocked by the
fuselage & the disturbed air flow into the prop from the
fuselage & wings.
UL prop manufacturers don't publish much info on their
props, so we have no way of determining &/or compar-
ing the efficiency of their props. We are somewhat at
their mercy with their recommendation.
They supposedly base their recommendations on past
experience with your plane/engine combination, but,
sometimes I wonder about that. Ask if you can return
their prop if their recommendation is wrong.
---------------- End forwarded message ------------------
I really do hope this is helpful. Sorry about length.
Any comments from persons more experienced than
I would be appreciated.
George Bass
P. O. Box 770
Camp Verde, AZ
86322
USUA #30899
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