Today's Message Index:
----------------------
1. 04:31 AM - Re: Cruise with 377 (Thom Riddle)
2. 05:05 AM - Re: Windmilling Prop (kfackler)
3. 05:23 AM - thrust numbers (robert bean)
4. 06:03 AM - Re: Windmilling Prop (Richard Pike)
5. 06:03 AM - Key west regulator (Dan Charter)
6. 07:03 AM - wings wanted (Dan Charter)
7. 07:26 AM - Re: wings wanted (Ken korenek)
8. 09:05 AM - Re: wings wanted (jerb)
9. 10:32 AM - Re: wings wanted (Richard Pike)
10. 02:51 PM - Re: Key west regulator (Bruce McElhoe)
11. 04:24 PM - Picture test (Mike Pierzina)
12. 04:56 PM - Re: Picture test (Bob N.)
13. 05:14 PM - Re: Picture test (George Bass)
14. 05:52 PM - Re: Picture test (John Hauck)
15. 08:12 PM - Re: wings wanted (DAquaNut@aol.com)
Message 1
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| Subject: | Re: Cruise with 377 |
--> Kolb-List message posted by: "Thom Riddle" <jtriddle@adelphia.net>
Bryan,
My 60" IVO is set at about 40" pitch (12 degrees at tip). It probably does not
climb as well as yours but it cruises quietly and cheaply. It weighs 337lb. empty
and my usual take-off weight with me and 10 gallons of fuel is close to 600lb.
Thom
Message 2
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| Subject: | Re: Windmilling Prop |
--> Kolb-List message posted by: "kfackler" <kfackler@ameritech.net>
I had occasion to trailer my fuselage to a repair facility last spring. I
was following the trailer and able to witness the windmilling, such as it
was. We weren't traveling that fast because of the road conditions, probably
no more than 30-35mph max. When we got to around 30, the prop would start to
"quiver" and would eventually work it's way over the "hump" of the
compression and move to the next cycle. This would repeat slowly. However,
at no time did the prop spin freely, nor can I imagine it would, even at
higher speeds. This was a 503 engine by the way.
-Ken Fackler
Kolb Mark II / A722KWF
Rochester MI
----- Original Message -----
From: "David L. Bigelow" <dlbigelow@verizon.net>
Subject: Kolb-List: Windmilling Prop
> --> Kolb-List message posted by: "David L. Bigelow"
<dlbigelow@verizon.net>
>
> I believe if you have enough airspeed, a gearbox equipped Rotax will
probably windmill.
>
> I have a number of hours in a DG-400 sailplane. It's equipped with a
retractable Rotax 503 engine with a 2:1 reduction belt drive. Normal speed
range is from about 45 to 110. When you shut the engine down (55 mph or
so), the prop continues to windmill, and you must use a brake to stop the
prop in a vertical position so the engine can be retracted. When you extend
the engine, the prop will start windmilling again above 60 mph or so.
>
> Most of us are flying with 2.58:1 reduction (or greater) gear boxes, so
would probably have to be near red line to get the prop to windmill. I'm
pretty sure a manual pull start of the engine at 50 mph is considerably
easier than static on the ground. I'll check it out when I get my FS 2 in
the air.
>
> Dave Bigelow
> Kamuela, Hawaii
>
> Do not archive
>
>
Message 3
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--> Kolb-List message posted by: robert bean <slyck@frontiernet.net>
G'mornin all, Here's some numbers from the prop selector calc.
It was a big help in setting up for initial flight. I have it set on
the
fine side and will most likely coarsen it up later.
Currently at 2035 prop rpm (throttled back considerable)
I can maintain level flight at 1200 msl @ 60mph with only
143 lbs thrust which calcs out to 31 hp !!!
I was concerned that this plane might need near 200 lbs
to accomplish the same thing. Happily, there's a big cushion.
The calculator shows I can add one more degree pitch without
much change in climb thrust but I'll try half a degree first.
-BB, low time/old Kolb do not archive
Message 4
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| Subject: | Re: Windmilling Prop |
--> Kolb-List message posted by: Richard Pike <richard@bcchapel.org>
Interesting that you bring this up because I tried it about two weeks ago.
MKIII, 582, 2.58:1 B box, 2 blade 68" Ivoprop.
At 60 mph in a descent, went to idle, shut off the engine and adjusted
descent angle to maintain 60 mph. The prop took about four or five seconds
to slow down and stop but it definitely did stop.
Lowered the nose and increased airspeed to 80 and the prop would slowly
turn from one compression point to another but it would not windmill and
never got anywhere close to anything that would restart the engine.
Would have tried it at 90, but there was enough turbulence to make that unwise.
A three blade prop or a different reduction ratio could possibly change the
results.
One way to get a prop to windmill would be to go from dual to single
ignition and put a dirt bike compression release in one of the spark plug
holes of each cylinder. Pulling the release would allow the engine to
windmill and it could be restarted that way. That's probably not a way I
would choose, but it would work.
Richard Pike
MKIII N420P (420ldPoops)
At 05:11 PM 9/3/2004 -1000, you wrote:
>--> Kolb-List message posted by: "David L. Bigelow" <dlbigelow@verizon.net>
>
>I believe if you have enough airspeed, a gearbox equipped Rotax will
>probably windmill.
>
> I have a number of hours in a DG-400 sailplane. It's equipped with a
> retractable Rotax 503 engine with a 2:1 reduction belt drive. Normal
> speed range is from about 45 to 110. When you shut the engine down (55
> mph or so), the prop continues to windmill, and you must use a brake to
> stop the prop in a vertical position so the engine can be
> retracted. When you extend the engine, the prop will start windmilling
> again above 60 mph or so.
>
>Most of us are flying with 2.58:1 reduction (or greater) gear boxes, so
>would probably have to be near red line to get the prop to windmill. I'm
>pretty sure a manual pull start of the engine at 50 mph is considerably
>easier than static on the ground. I'll check it out when I get my FS 2 in
>the air.
>
>Dave Bigelow
>Kamuela, Hawaii
>
>
Message 5
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| Subject: | Key west regulator |
--> Kolb-List message posted by: "Dan Charter" <lndc@fnbcnet.com>
I bought my FS 1 with a Key west regulator already installed. I'm wanting to put
a Rotax tach in and dump the tiny tach. I noticed all of the output wires from
the engine are going to the input side of the reg. I have a single strobe,
Hobbs meter and a Icom radio running off the planes electrical sys. Is all the
output wires necessary? That's seems to be allot of power going to the regulator
that couldn't be used. Can this setup damage the regulator? Do not archive.
Dan Charter
original FS 1
Message 6
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--> Kolb-List message posted by: "Dan Charter" <lndc@fnbcnet.com>
Anybody out there have a set of wings off a FS ll or mark ll, lll for sale. I have
a friend that wants to put a set of Kolb wings on his Preceptor pup. He's
looking for more climb. He's at about 250' per min. with a half VW and won't change
the engine to a more powerful 2 stroke. Do not archive.
Dan Charter
FS 1
Message 7
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| Subject: | Re: wings wanted |
--> Kolb-List message posted by: Ken korenek <kkorenek@comcast.net>
I have a really nice set of 5 rib wings. Only 30 hrs on 'em.
Need to get rif of 'em.
They're in the way.
Ken Korenek
Arlington, Texas
Former FSII
Building a Titan Tornado S
Dan Charter wrote:
>--> Kolb-List message posted by: "Dan Charter" <lndc@fnbcnet.com>
>
>Anybody out there have a set of wings off a FS ll or mark ll, lll for sale. I
have a friend that wants to put a set of Kolb wings on his Preceptor pup. He's
looking for more climb. He's at about 250' per min. with a half VW and won't
change the engine to a more powerful 2 stroke. Do not archive.
>Dan Charter
>FS 1
>
>
>
>
Message 8
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| Subject: | Re: wings wanted |
--> Kolb-List message posted by: jerb <ulflyer@verizon.net>
Dan,
Let me know what the results are. I just have a feeling he's not going to
gain much. Having had flown our shorter wing FireFly and have flown my
hangar partners N3-Pup with the 2 cylinder Global (1/2-VW like), I just
don't think he's going to get the performance he thinks he will. He must
be a shinny guy, if we got 150 ft/m climb we were getting into nose bleed
territory. Now if your were to put on say a 377 or 447, or even better a
503, then you should see some worth while performance increase. The
engine I thought that would have been just perfect for the N3 was the
Thunderchief that Larry Israel was developing that involved conversion of a
Citroen 4-stroke 2-cylinder engine to reduction drive unit with electric
start & alternator. To bad he and his partner could not agree with each
other to finish the project.
jerb
At 09:08 AM 9/4/04 -0500, you wrote:
>--> Kolb-List message posted by: "Dan Charter" <lndc@fnbcnet.com>
>
>Anybody out there have a set of wings off a FS ll or mark ll, lll for
>sale. I have a friend that wants to put a set of Kolb wings on his
>Preceptor pup. He's looking for more climb. He's at about 250' per min.
>with a half VW and won't change the engine to a more powerful 2 stroke. Do
>not archive.
>Dan Charter
>FS 1
>
>
Message 9
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| Subject: | Re: wings wanted |
--> Kolb-List message posted by: Richard Pike <richard@bcchapel.org>
If he's determined to keep the 1/2 VW, he would be better off to forget the
Kolb wings and try nitrous oxide, that's about the only way he'll get any
more climb performance out of a 1/2 VW...
Richard Pike
MKIII N420P (420ldPoops)
(Now in the final painting for the FSII)
do not archive
At 09:08 AM 9/4/2004 -0500, you wrote:
>--> Kolb-List message posted by: "Dan Charter" <lndc@fnbcnet.com>
>
>Anybody out there have a set of wings off a FS ll or mark ll, lll for
>sale. I have a friend that wants to put a set of Kolb wings on his
>Preceptor pup. He's looking for more climb. He's at about 250' per min.
>with a half VW and won't change the engine to a more powerful 2 stroke. Do
>not archive.
>Dan Charter
>FS 1
>
>
Message 10
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| Subject: | Re: Key west regulator |
--> Kolb-List message posted by: Bruce McElhoe <mcelhoe@cvip.net>
Dan,
I had very little load on my Key West regulator, which caused it to burn
out, and it burned out my lighting coil in the Rotax 277 as well.
This is a shunt-type regulator that draws a lot of current in order to pull
down the voltage. It does not do well with a light load. I suggest you add
a dummy load, or use a different type of regulator.
Regards,
Bruce McElhoe FireFly #88
Reedley, California
----- Original Message -----
> --> Kolb-List message posted by: "Dan Charter" <lndc@fnbcnet.com>
>
> I bought my FS 1 with a Key west regulator already installed. I'm wanting
to put a Rotax tach in and dump the tiny tach. I noticed all of the output
wires from the engine are going to the input side of the reg. I have a
single strobe, Hobbs meter and a Icom radio running off the planes
electrical sys. Is all the output wires necessary? That's seems to be allot
of power going to the regulator that couldn't be used. Can this setup damage
the regulator? Do not archive.
> Dan Charter
> original FS 1
>
Message 11
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--> Kolb-List message posted by: "Mike Pierzina" <planecrazzzy@lycos.com>
Hey Guys,
Just running a test to see if this picture ends up a good size...
Then I've gotta figure out how I did it...
http://www.geocities.com/planecrazzzy/dsc00143.jpg
Gotta Fly...
Mike in MN
do not archive
My Web Site:
http://www.geocities.com/planecrazzzy/Planecrazzzy.html
Sometimes you just have to take the leap
and build your wings on the way down...
Gotta Fly...
--
Message 12
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| Subject: | Re: Picture test |
--> Kolb-List message posted by: "Bob N." <ronoy@shentel.net>
It's 11" by 7.5"...a right good size.
Bob N.
do not archive
Message 13
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| Subject: | Re: Picture test |
--> Kolb-List message posted by: "George Bass" <gtb@commspeed.net>
Mike;
Agreed. A very nice picture.
In case the dimensions given before
were not what you expected, it is
also 640 x 480 pixels. YMMV.
That's what I got when I opened it.
George Bass
P. O. Box 770
Camp Verde, AZ
86322
USUA #30899
---
Message 14
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| Subject: | Re: Picture test |
--> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
size...
|
| Mike in MN
Hi Mike/All:
Right click on the picture and click on properties. I think it is a
640 X 480, 61kb.
I usually do mine 800 X600, and they come out about 100 to 150kb.
That one came out good though. Looks tough!!!
john h
DO NOT ARCHIVE
Message 15
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| Subject: | Re: wings wanted |
--> Kolb-List message posted by: DAquaNut@aol.com
In a message dated 9/4/04 8:27:21 AM Central Standard Time,
kkorenek@comcast.net writes:
<<
I have a really nice set of 5 rib wings. Only 30 hrs on 'em.
Need to get rif of 'em.
>>
Ken,
I wonder if they would fit a firefly. Just thinking out loud. They probably
weigh just enough to make the total weight over 254, then I would have to
worry about the sport pilot thingy.
Ed (In Houston)
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