Today's Message Index:
----------------------
1. 02:22 AM - Re: Belt sander specs. (Jim Ballenger)
2. 05:58 AM - Wood props (Kirk Smith)
3. 06:36 AM - Re: Trip (GeoR38@aol.com)
4. 06:55 AM - Re: IVO Propellers Right & Left & Powerfin? (Richard & Martha Neilsen)
5. 07:03 AM - props (Bob Bean)
6. 07:18 AM - Big Day (Paul Petty)
7. 07:38 AM - Re: props (Richard Pike)
8. 08:15 AM - Re: props (ul15rhb@juno.com)
9. 08:19 AM - Re: props (Gherkins Tim-rp3420)
10. 08:21 AM - Re: Wood props (T. K. Frantz)
11. 08:23 AM - Re: Big Day (Woody)
12. 08:39 AM - Re: props (Kirk Smith)
13. 08:41 AM - Re: props (Gherkins Tim-rp3420)
14. 09:08 AM - Re: Big Day (Richard Pike)
15. 09:14 AM - WELDING & BELT SANDERS (Lawrence M. Rice)
16. 01:26 PM - Re: Wood props (Richard Swiderski)
17. 01:58 PM - Aluminum rib bracing (george murphy)
18. 04:04 PM - Blackout (Bob N.)
19. 05:34 PM - Re: Wood props (Kirk Smith)
20. 05:55 PM - Re: Blackout (herbgh@juno.com)
21. 05:59 PM - Re: UL: Wood props (Bob N.)
22. 07:00 PM - EAA Easter Coast Regional Flying (Chuck Davis - Comcast)
23. 07:07 PM - Re: Aluminum rib bracing (bryan green)
24. 07:20 PM - think (bryan green)
25. 07:38 PM - Re: think (HShack@aol.com)
26. 07:40 PM - Re: Trip (WillUribe@aol.com)
27. 07:48 PM - Re: props (WillUribe@aol.com)
28. 08:11 PM - speaking of Vortex generators..WOW (Don Gherardini)
29. 09:04 PM - Re: Trip (GeoR38@aol.com)
30. 09:21 PM - Re: Blackout (Robert Laird)
Message 1
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| Subject: | Re: Belt sander specs. |
--> Kolb-List message posted by: "Jim Ballenger" <ulpilot@cavtel.net>
Jim
I use a 3M cut and polish 6" wheel on my grinder based on advise I received
from the list last year. I highly recommend it for smoothing all your cuts
on the tubing. It works great.
Jim Ballenger
Flying a FS KXP 447
Building a MK III X
Virginia Beach, VA
DO NOT ARCHIVE
----- Original Message -----
From: "Jim Clayton" <jspc78@yahoo.com>
Subject: Kolb-List: Belt sander specs.
> --> Kolb-List message posted by: Jim Clayton <jspc78@yahoo.com>
>
> Hello all,
>
> I am looking at small, bench mounted belt sanders for
> smoothing aluminum after cutting. Any advice on the
> grade of sandpaper to use? Been looking at some
> Harbor Freight models priced around $80; any thoughts
> on whether it will last longer than a week ;-), or
> other suggested sanders?
>
> Thanks, Jim
>
> Jim Clayton
> California
> Mark-3X, waiting for Kit#1
>
>
Message 2
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--> Kolb-List message posted by: "Kirk Smith" <snuffy@usol.com>
Does anybody know who makes the wood props that Kolb uses on their fireflies? Kirk
Message 3
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--> Kolb-List message posted by: GeoR38@aol.com
In a message dated 8/21/03 4:39:02 PM Eastern Daylight Time,
WillUribe@aol.com writes:
> Greetings,
> I'm getting bored of Indianapolis, I have 4 more weeks left here.
> This weekend I'm driving to Dayton, Ohio and visit the Wright brothers
> bicycle shop.
>
> Any Kolb flyer out that way?
>
> Regards,
> Will Uribe
> El Paso, TX
> FireStar II N4GU
> C-172 N2506U
> http://home.elp.rr.com/airplane/
>
Will, it would have been great to meet you but we are in the process of
moving to Swiderski and Merle Hargis land in Florida and don't have a house
anymore...
Especially a buddly from ol El Paso....geez.
George Randolph
Firestar driver from Akron O...no longer in Akron though
Message 4
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| Subject: | Re: IVO Propellers Right & Left & Powerfin? |
--> Kolb-List message posted by: "Richard & Martha Neilsen" <NeilsenRM@comcast.net>
I have a three bladed 72" F Model Power Fin on my Redrive VW. I purchased it
primarily because of its low inertia. I'm happy with it but I haven't tried
a identical other prop so?? I got to look at a Power Fin prop off a CGS Hawk
that had a takeoff problem a Oshkosh. They parked the damaged plane next to
me in the camping area. The blades were broken off the hub with about one
inch sticking out of the three blade hub. The blades were broken in many
pieces and separated front from the back at the leading/ trailing edge
joint. They appeared to be foam filled or hollow. I have no feelings good or
bad about what I saw. They fixed the broken plane and mounted a new prop and
flew it. In general aviation engines you need to check the engine crank when
you have a prop strike like that. I hope the combination of broken prop and
Rotax gear box dampener saved the engine? It seemed to fly ok the next few
days.
Rick Neilsen
Redrive VW powered MKIIIc
----- Original Message -----
From: "Jack & Louise Hart" <jbhart@ldd.net>
Subject: Kolb-List: IVO Propellers Right & Left & Powerfin?
Does anyone have any experience with Powerfin on a Kolb product? If so,
how has it performed?
>
> Jack B. Hart FF004
> Jackson, MO
>
>
> Jack & Louise Hart
> jbhart@ldd.net
>
Message 5
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--> Kolb-List message posted by: Bob Bean <slyck@frontiernet.net>
all....especially MkIII drivers, I'll be experimenting with the 2 blade
warp drive
hub. How many out there are using a 2 blader and satisfied with it? I've
read all the negatives, just wonder about success stories. -BB
Message 6
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--> Kolb-List message posted by: "Paul Petty" <ppetty@c-gate.net>
Kolbers,
Well today is the big day. I mailed a check to TNK for kit 1 for a King Kolbra.
Plan on working in the shop this weekend getting ready to start. I bought two
real heavy built 4 x 8 tables that I plan to put end to end and true up. They
have Formica surfaces with a back splash. This sound like a suitable work surface?
I'm very excited to finally get going on this project. Thanks to all for
the good advice.
Let the madness begin!
pp
Message 7
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--> Kolb-List message posted by: Richard Pike <rwpike@charter.net>
Have used two blade and three blade props and am satisfied that a two blade
gives a broader performance range while a three blade can be smoother.
I think there's a bunch of stuff on props in the archives.
Richard Pike
MKIII N420P (420ldPoops)
do not archive
At 10:11 AM 8/22/03 -0400, you wrote:
>--> Kolb-List message posted by: Bob Bean <slyck@frontiernet.net>
>
>all....especially MkIII drivers, I'll be experimenting with the 2 blade
>warp drive
>hub. How many out there are using a 2 blader and satisfied with it? I've
>read all the negatives, just wonder about success stories. -BB
>
>
Message 8
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--> Kolb-List message posted by: ul15rhb@juno.com
How about Firestar drivers? I've tried both a two and three blade prop. The three
blade has more moment of inertia, is tougher on the gear box, and has a buzzing
sound that I didn't like.
The two blade is quieter, and performs well.
Ralph
Original Firestar
16 years flying it
--- Bob Bean <slyck@frontiernet.net> wrote:
--> Kolb-List message posted by: Bob Bean <slyck@frontiernet.net>
all....especially MkIII drivers, I'll be experimenting with the 2 blade
warp drive
hub. How many out there are using a 2 blader and satisfied with it? I've
read all the negatives, just wonder about success stories. -BB
The best thing to hit the internet in years - Juno SpeedBand!
Surf the web up to FIVE TIMES FASTER!
Message 9
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--> Kolb-List message posted by: Gherkins Tim-rp3420 <rp3420@motorola.com>
Gang,
I just purchased a 3 blade 60" Powerfin for my Firestar II 503dcdi. After spending
some time talking to Stewart G.( the owner of Powerfin) over the past 18
months, I am very impressed with his professionalism and the time he took for
the one on one conversations we had. Really a knowledgeable man who cares a lot
about his product.
I swayed to Powerfin due to Will Uribe and Dave Rains New Mexico to Oregon trip
last year in their two firestar II's. Basically both have the same airplane
and engine. Will U. had a three blade Ivo and Dave had a three blade Powerfin.
Dave outran Will by a few miles per hour.
After personally talking to Will U. on one of his trips here to the GM Mesa proving
grounds, Will admitted that he liked the Powerfin prop better and if he had
to do it over again he would buy the Powerfin.
Powerfin sure has a pretty blade and new fully CNC'd black anodized aluminum hub.
I was also impressed with Hot Prop with brass inlaid leading edge and simitar shape,
but hesitant due to the prop being made over seas and leery of the continued
customer support.
Good luck,
Tim Gherkins
-----Original Message-----
From: Richard Pike [mailto:rwpike@charter.net]
Subject: Re: Kolb-List: props
--> Kolb-List message posted by: Richard Pike <rwpike@charter.net>
Have used two blade and three blade props and am satisfied that a two blade
gives a broader performance range while a three blade can be smoother.
I think there's a bunch of stuff on props in the archives.
Richard Pike
MKIII N420P (420ldPoops)
do not archive
At 10:11 AM 8/22/03 -0400, you wrote:
>--> Kolb-List message posted by: Bob Bean <slyck@frontiernet.net>
>
>all....especially MkIII drivers, I'll be experimenting with the 2 blade
>warp drive
>hub. How many out there are using a 2 blader and satisfied with it? I've
>read all the negatives, just wonder about success stories. -BB
>
>
Message 10
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--> Kolb-List message posted by: "T. K. Frantz" <tkrolfe@usadatanet.net>
Kirk Smith wrote:
> --> Kolb-List message posted by: "Kirk Smith" <snuffy@usol.com>
>
> Does anybody know who makes the wood props that Kolb uses on their fireflies?
Kirk
>
Kirk,
Tennessee Propellors makes the wood prop, at least they did a year ago. If your
looking to get a better price by dealing with them direct, think again. I tried
and
found that I was able to get a better price from TNK. Go figure?!!!
Found out they will do a urethane leading edge if you ask for it.
Terry - FireFly # 95
Message 11
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--> Kolb-List message posted by: "Woody" <duesouth@govital.net>
This has been hashed and rehashed before but you may want to also setup a
couple good sawhorses. By building 6 Kolbs I have found that this is the
easiest way to work on the wings. Other opinions may vary.
----- Original Message -----
From: "Paul Petty" <ppetty@c-gate.net>
Subject: Kolb-List: Big Day
> --> Kolb-List message posted by: "Paul Petty" <ppetty@c-gate.net>
>
> Kolbers,
> Well today is the big day. I mailed a check to TNK for kit 1 for a King
Kolbra. Plan on working in the shop this weekend getting ready to start. I
bought two real heavy built 4 x 8 tables that I plan to put end to end and
true up. They have Formica surfaces with a back splash. This sound like a
suitable work surface? I'm very excited to finally get going on this
project. Thanks to all for the good advice.
>
> Let the madness begin!
>
> pp
>
>
Message 12
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--> Kolb-List message posted by: "Kirk Smith" <snuffy@usol.com>
Got a two blade warp on mine and like it. Has a better recovery time on my
slower craft. Doesn't collect as much mosquito goop as a 3 finner either.
Maybe can fly today. Watched the squall lines go through yesterday. Nice
cool northern air back today. Ahhhhhhhhhh.....Kirk
Do not archive
Message 13
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--> Kolb-List message posted by: Gherkins Tim-rp3420 <rp3420@motorola.com>
Folks,
I just posted some thoughts and here are some more------ If my engine gearbox could
throw a three bladed Warp that is what I would have purchased. If I go to
a two blade prop and I am sure I will in the future, to give it a try, what
I would select hands down is a two blade Warp.
Tim G.
PS- Take my opinion for what it is worth, I have not flown either prop yet! But
I have read and followed prop subject for the last four years, and these are
my conclusions. tg
-----Original Message-----
From: ul15rhb@juno.com [mailto:ul15rhb@juno.com]
Subject: Re: Kolb-List: props
--> Kolb-List message posted by: ul15rhb@juno.com
How about Firestar drivers? I've tried both a two and three blade prop. The three
blade has more moment of inertia, is tougher on the gear box, and has a buzzing
sound that I didn't like.
The two blade is quieter, and performs well.
Ralph
Original Firestar
16 years flying it
--- Bob Bean <slyck@frontiernet.net> wrote:
--> Kolb-List message posted by: Bob Bean <slyck@frontiernet.net>
all....especially MkIII drivers, I'll be experimenting with the 2 blade
warp drive
hub. How many out there are using a 2 blader and satisfied with it? I've
read all the negatives, just wonder about success stories. -BB
The best thing to hit the internet in years - Juno SpeedBand!
Surf the web up to FIVE TIMES FASTER!
Message 14
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--> Kolb-List message posted by: Richard Pike <rwpike@charter.net>
That would probably work OK. I used two hollow core interior doors end to
end which were nice because they were wide enough, but not so wide that you
couldn't work just as well from either side. Made a 14' long table which
was a good length. Also, you could use the screw gun to use screws to hold
jigging blocks where ever you wanted by just screwing them into the surface
of the plywood, which was real handy.
Richard Pike
MKIII N420P (420ldpoops)
do not archive
At 09:22 AM 8/22/03 -0500, you wrote:
>--> Kolb-List message posted by: "Paul Petty" <ppetty@c-gate.net>
>
> Kolbers,
>Well today is the big day. I mailed a check to TNK for kit 1 for a King
>Kolbra. Plan on working in the shop this weekend getting ready to start. I
>bought two real heavy built 4 x 8 tables that I plan to put end to end and
>true up. They have Formica surfaces with a back splash. This sound like a
>suitable work surface? I'm very excited to finally get going on this
>project. Thanks to all for the good advice.
>
>Let the madness begin!
>
>pp
>
>
Message 15
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| Subject: | WELDING & BELT SANDERS |
--> Kolb-List message posted by: "Lawrence M. Rice" <tailwind5@juno.com>
The Henrob torch is really nice. If it weren't so pricy and if I didn't
already have a good torch.......
A belt or disc sander is nice for smoothing the edges of thin aluminum
parts. I made my own disc sander with an old electric motor I got from a
friend and a disc I bought from a woodworking tool place, made the table
from wood. However, if you need to smooth the edge of heavier aluminum
parts (say 1/4" thick or more), forget the sander & use a Vixen file. It
does the job faster & better & you won't go through enough sanpaper to
pay Guatemala's national debt!
Larry the MicroMong guy
Message 16
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--> Kolb-List message posted by: "Richard Swiderski" <swiderski@rocketjet.net>
Kirk,
I'm going to have to go with Ivo as I will need n inflight adjsutable to
use my lower end torque with the turbo, so I'll be looking for a 72" left
hand or quick adjust that I can convert. Regarding your search for a
quality wooden prop, I'd put my money in a Precision Propellor. they are
ground adjustable, 2 or 3 blade & even had a semi constant speed version.
I've used them for years & would recommend one to my mother.
Richard Swiderski
----- Original Message -----
From: "Kirk Smith" <snuffy@usol.com>
Subject: Kolb-List: Wood props
> --> Kolb-List message posted by: "Kirk Smith" <snuffy@usol.com>
>
> Does anybody know who makes the wood props that Kolb uses on their
fireflies? Kirk
>
>
Message 17
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| Subject: | Aluminum rib bracing |
<!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAAIiv/KqM6kE+7zyAZCAWAm8KAAAAQAAAA4p2RgLQ6EEKL2skA4IyHtwEAAAAA@direcway.com>
--> Kolb-List message posted by: george murphy <geomurphy@direcway.com>
Help ---I am reconstructing wings for my ole Firestar and understand that
the 5 rib design needs a little bracing using aluminum angle. My question
is, what is the material made of ? Is a certain type of aluminum required
or can I just use a hardware store type? And if I were to replace the
leading edge tube what would the recommended thickness be.
Any help would be appreciated, George Murphy / 85 Firestar / Alabama
Message 18
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--> Kolb-List message posted by: "Bob N." <ronoy@shentel.net>
What's wrong with this picture? http://www.angelfire.com/rpg/ronoy/Blackout.jpg
Bob N.
Message 19
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--> Kolb-List message posted by: "Kirk Smith" <snuffy@usol.com>
> Kirk,
>
> I'm going to have to go with Ivo as I will need n inflight adjsutable
to
> use my lower end torque with the turbo, so I'll be looking for a 72" left
> hand or quick adjust that I can convert. Regarding your search for a
> quality wooden prop, I'd put my money in a Precision Propellor. they are
> ground adjustable, 2 or 3 blade & even had a semi constant speed version.
> I've used them for years & would recommend one to my mother.
>
> Richard Swiderski
I think it's more sentimental than anything. I just like the look of wood.
Remember my Pa's old Chief and the wood prop on it. Was so small when I
rode in that I couldn't see out the windshield, only the side window. Seat
seemed huge back then. Precious memories.............Kirk
Do not archive
Message 20
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--> Kolb-List message posted by: herbgh@juno.com
Bob
There are too many lights on across the country save the middle north
east!!:-) Herb in KY
On Fri, 22 Aug 2003 19:02:39 -0400 "Bob N." <ronoy@shentel.net> writes:
> --> Kolb-List message posted by: "Bob N." <ronoy@shentel.net>
>
> What's wrong with this picture?
> http://www.angelfire.com/rpg/ronoy/Blackout.jpg
>
>
> Bob N.
>
>
>
>
>
>
>
>
>
>
Message 21
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| Subject: | Re: UL: Wood props |
--> Kolb-List message posted by: "Bob N." <ronoy@shentel.net>
Scott Perkins asks: what are its (article in Air&Space on wood props)
best points?
Here's what I clipped out:
from Air&Space art. on wood props
On the majority of aircraft, metal and
composite props have replaced wood, but
wooden propellers still own 10 percent of
the aviation market. The demand derives
from attributes including performance ("It's
much easier to design the optimum wood
propeller for custom aircraft," says Rowell;
"Wood propellers inherently have less
vibration"), price, and, in the case of vintage
aircraft, authenticityright down to the
1940s-vintage Sensenich decals that the
company applies to the finished product.
"Wood makes sense," says Steve Boser,
the design engineer at Sensenich. "Metal
props are much more sensitive to engine
vibrations. All props flex in flight, due to
harmonics, the high-frequency oscillations
excited by engine vibrations. Wood props
damp out engine-induced vibrations by
several magnitudes better than metal. But
countless flexion cycles don't affect wood
significantly, while metal props accumulate
invisible flaws from vibrations and flexing.
"A wood prop is as good as it looks. We've
had 30-year-old wood props come in that
only needed refurbishing, cosmetics. And
we've had wood props come back in two
years that were unairworthy. It all depends
on proper maintenance."
Metal props initially had a performance advantage
over woodbecause metal is so strong,
metal props can be made thinner than wood
and are therefore more efficient. But the
benefits were obviated in the early 1950s by
the design of a new airfoil for wooden
propellers. Wood props traditionally had a
flat backside, which worked well, but the
thickness that was required to keep them
from flexing cost some efficiency, measured
by the percentage of shaft horsepower
converted to thrust horsepower. Sensenich
engineer Henry Rose designed a wooden-
blade airfoil that was curved on both
sidesnow called the Rose "E"which
brought wood prop performance within a
few percentage points of the performance
of metal props.
John Monnet, an experimental
aircraft designer in Oshkosh,
Wisconsin, who has sold more than
2,000 kit planes and 500 Sonex aircraft,
uses wood props exclusively. "We've
designed aircraft that use engines that
run from 2,750 to 6,000 rpms," he says.
"You can't safely cover that range with
metal props. Wood is durable,
experiences far less torsional
vibrations, and we can experiment with
different tuning of the prop. It costs a
few hundred dollars for Sensenich
people to change a computer program and
carve a new pitch and diameter. It costs
thousands for recasting, grinding, and
polishing a forged metal prop.
Bob N.
http:www.angelfire.com/rpg/ronoy/
Message 22
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"Kolb-List Digest List" <kolb-list-digest@matronics.com>
| Subject: | EAA Easter Coast Regional Flying |
--> Kolb-List message posted by: "Chuck Davis - Comcast" <davis207@comcast.net>
Well, we can't all make it to Oshkosh. However, the East Coast Regional
fly-in is at New Garden (N57) in South East PA Sept 13-14. I plan on flying
down from Princeton in the Firefly. Any other Kolb drivers planning to make
it?
http://www.n57.com/
Chuck Davis
FF 028
Message 23
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| Subject: | Re: Aluminum rib bracing |
--> Kolb-List message posted by: "bryan green" <lgreen1@sc.rr.com>
Hey George let me know what you find out. I flew mine Wed. with the 377 for
1.5 and it was great.
Bryan Green (Elgin SC)
----- Original Message -----
From: "george murphy" <geomurphy@direcway.com>
<!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAAIiv/KqM6kE+7zyAZCAWAm8KAAAAQ
AAAA4p2RgLQ6EEKL2skA4IyHtwEAAAAA@direcway.com>
Subject: Kolb-List: Aluminum rib bracing
> --> Kolb-List message posted by: george murphy <geomurphy@direcway.com>
>
> Help ---I am reconstructing wings for my ole Firestar and understand that
> the 5 rib design needs a little bracing using aluminum angle. My question
> is, what is the material made of ? Is a certain type of aluminum required
> or can I just use a hardware store type? And if I were to replace the
> leading edge tube what would the recommended thickness be.
>
> Any help would be appreciated, George Murphy / 85 Firestar / Alabama
>
>
Message 24
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--> Kolb-List message posted by: "bryan green" <lgreen1@sc.rr.com>
Here's a question from a new Kolb driver to get you all going. If you could do
one thing to an older Firestar I with 377 to improve safety, performance and reliability
what would it be? ( without letting you fly it instead of me )
Bryan Green (Elgin SC)
Message 25
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--> Kolb-List message posted by: HShack@aol.com
In a message dated 8/22/03 10:20:49 PM Eastern Daylight Time,
lgreen1@sc.rr.com writes:
> Here's a question from a new Kolb driver to get you all going. If you could
> do one thing to an older Firestar I with 377 to improve safety, performance
> and reliability what would it be? ( without letting you fly it instead of me
> )
> Bryan Green (Elgin SC)
>
>
>
I would install my Vortex Generators on the wings -one on each main rib for a
total of 10. The cost to make them is under $20.
They should lower your stall speed by 4-5 mph, give better gas mileage,
increase your cruise speed for same rpm's, etc..
Put some on your vertical fin for power steering.
If you want the plan, let me know.
Howard Shackleford
FS II
Lexington, SC
Message 26
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--> Kolb-List message posted by: WillUribe@aol.com
----- Original Message ----- From: <GeoR38@aol.com>
Subject: Re: Kolb-List: Trip
> >
>
>Will, it would have been great to meet you but we are in the process of
> moving to Swiderski=A0 and Merle Hargis land in Florida and don't have a
house
> anymore...
> Especially a buddly from ol El Paso....geez.
>
> George Randolph
> Firestar driver=A0 from Akron O...no longer in Akron though
George,
We may meet up sometime this year. I believe I will be working in Florida in
the near future. I think the schedule calls for me to be in Miami, Orlando,
Fort Lauderdale and Atlanta. But I don't have the exact date with me.
I would like to drive down to Cincinnati, OH and check out Spory's in
Batavia. Does anyone know if it's open on weekends?
When I'm on the road I check out Kips database on Kolb owner but sometimes I
have no idea if I'm close to the small towns listed in the database. Where=20is
Swiderski?
http://www.springeraviation.net/database.html
Will Uribe
El Paso, TX
FireStar II N4GU
C-172 N2506U
http://home.elp.rr.com/airplane/
do not archive
Message 27
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--> Kolb-List message posted by: WillUribe@aol.com
----- Original Message ----- From: "Gherkins Tim-rp3420" <rp3420@motorola.com>
Subject: RE: Kolb-List: props
<snip>
> After personally talking to Will U. on one of his trips here to the GM Mesa
proving grounds, Will admitted that he liked the Powerfin prop better and if
he had to do it over again he would buy the Powerfin.=A0
>
<snip>
Dave Rains flew his FireStar with the IVO and the Powerfin. He said the IVO
was smoother and quitter but the Powerfin gave him more thrust on take off,
was more efficient then the IVO. Ever time we flew together he would fly away
from me. At times he had to make a 360 so I could keep up to him.
Will Uribe
El Paso, TX
FireStar II N4GU
C-172 N2506U
http://home.elp.rr.com/airplane/
do not archive
Message 28
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| Subject: | speaking of Vortex generators..WOW |
--> Kolb-List message posted by: "Don Gherardini" <donghe@one-eleven.net>
Well, Im so dang suprised, I cant hardly tell youall....some of you in fact
you likely think ive fell off the deep end....but...here goes
FireFly....UL2-OII Cuyuna...3 blade 60 Inch warp....6200rpms wot...
loaded to gross , actually 2 lbs over at 502
PRIOR Stall tests
stall with 5000 rpms throttle setting.....33 mph...real easy break over...
stall at WOT..6200....hanging stall..mushing then an break...prop making all
kinds of strange sounds to warn you plenty early...still about 33 mph...due
to mush tho hard to pin down speed...
installed 12 vortex gens today...6 per side...in valley between ribs...none
in inside quadrant of wing in front of prop arc ( I was worried about that
carpet tape)
Loaded to 502....
stall at wot....never did really....nose stayed up and just wouldnt come
down.....airspeed indicator dropped off to less than 20..likely because
angle to steep for pitot...or I was tailslideing slightly....I had to lower
nose to come out of it...
2nd try WOT...determined that i oughtta be able to stall this turd...so I
just held it up there and danced the rudder to keep it straight....finally
the nose dropped after what seemed like forever....I had so little
resistance on stick i think i was standing still or sliding...it finally
fell over quick...definatly a Different bird with these on! Also never did
hear that prop noise so I guess there is some air getting to the prop that
wasnt getting there before from the inner most VG's, even tho they are not
directly in front of the prop arc..very noticable..although the cavitating
noise before was a nice warning...
Stall at 5000 rpms throttle.....27 mph!!!!!!....did it 3 or 4 times and I
think I might have seen 26 once!...loaded to GROSS folks...!
I have gained actually a solid 6 mph of slow flight envelope.....I can't
believe it....Im gonna do it again in the morning to see if i was dreaming
today!
I installed them at 13.5 inches back from the center of the leading edge
tube...they are a tad behind the high part of the wing when at flight
attitude. what i attempted to do was raise the wing to flight attitude..and
threw a line across the top of the wing at what appeared to be the highest
point...then placed the front of the vg on this line.
I made the Vgs at a 20 deg angle....\ / not because im a smart
feller...but because I studied all the patent data at US patent web
site...Studied brother Shacks archives...and brother Harts stuff too. I
could not decide after all this that I knew what was best..so I just went in
between!
I cant say if I have done it right, or the best way..but im not gonna change
em..I'm very pleased.
http://www.geocities.com/dagger369th/my_firefly.htm
Don Gherardini-
FireFly 098
Message 29
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--> Kolb-List message posted by: GeoR38@aol.com
In a message dated 8/22/03 10:40:38 PM Eastern Daylight Time,
WillUribe@aol.com writes:
> Where=20is
> Swiderski?
> http://www.springeraviation.net/database.html
>
> Will Uribe
> El Paso, TX
> FireStar II N4GU
> C-172 N2506U
> http://home.elp.rr.com/airplane/
>
He is in or near Ocala up north central Fla.
George Randolph
Message 30
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--> Kolb-List message posted by: Robert Laird <rlaird@cavediver.com>
At 07:53 PM 8/22/2003, you wrote:
>--> Kolb-List message posted by: herbgh@juno.com
>
>Bob
>
> There are too many lights on across the country save the middle north
>east!!:-) Herb in KY
YEAH! I can't help thinking that, if an alien force were to attack Earth,
they wouldn't have to do any scouting to figure out where to do the most
damage. The Anti-Alien Police (aka, John Ashcroft) should be arresting
everyone for letting the lights point out our positions! People of Earth
UNLIGHT!
DO NOT ARCHIVE ARCHIVE DO NOT
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