KR> antennae tuning

[Wolfgang Decker]

Dene,

you should be able to use your CB radio SWR meter for VHF as well. These
things work by coupling a conductor parallel to the RF cable (they are not
connected) and through a diode setup you switch the measurement between
forward power and reflected power. The total amount of power that couples
into the meter depends on frequency, but the coupling factor is the same for
forward and reflected power, and since you only want to measure the ratio
between the two it does not matter. It might be, though, that you are not
able to tune to a full 100% in the forward setting, in which case you need
to adjust the reading for the reflected power.

If you want to measure the actual power going to the antenna, then you need
to have a tuned meter, such as the Bird Wattmeter with a respective insert.

Greetings from the still cold Western Pennsylvania,

Wolfgang
N1YM

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of AVLEC
Sent: Monday, February 26, 2007 4:35 PM
To: KRnet
Subject: KR> antennae tuning


Hi KR radio heads
This one is for the radio literate. I have just installed an antennae into
an aircraft made from coax only. I left the radiator and counterpoise too
long on purpose so that I could tune it to length in the aircraft using a
SWR meter and a handheld radio. Here is where my confusion starts.
I have in the past built a number of antennae for CB radio and have tuned
them with one of two SWR meters that I have and they worked fine.
Today I spoke to a guy that has built a few airband antennae and he says
that the SWR meters suitable for CB radio freq are not suitablr for
airband?? As far as I know all a SWR meter is is a voltmeter so why should
the freq make any difference? He also told me that a handheld radio does not
put out enough power to be able to get reliable readings??? Sounds really
obsurd to me.
Comments from those in the know would be very much appreciated.

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net


___
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
Post photos, introductions, and For Sale items to
http://www.kr2forum.com/phpBB2/index.php
please see other KRnet info at http://www.krnet.org/info.html

__ NOD32 2083 (20070227) Information __

This message was checked by NOD32 antivirus system.
http://www.eset.com

KR> antennae tuning

[Wolfgang Decker]

"1 piece of alum foil around the mount area and I have a 150-200 mile range.
Do not
over think this thing, build it install it and fly it."

Tuning an antenna is not only about increasing range or receiving
sensitivity, it actually increases the lifetime of your radio, or at least
of the RF transistors in the amp stage. Keep in mind that all the power that
is reflected from a mismatched antenna goes right back into the transistors,
where it just heats the electronic circuits. Radios have been silenced very
quickly that way.
Dene is doing it the right way - after all all of us put enormous efforts
into tuning the aircraft engines to exactly where they need to be. So why
stop at the radios? After all, a simple SWR meter sets you back about $25.

Wolfgang Decker
Beaver Falls, PA
Basement almost ready to get started

KR> KR Gathering Photos / KR's in Western PA

[Wolfgang Decker]

Hello KR-Netters,

I have been quiet over the last many months, mostly due to job and location
change. I recently moved from Rhode Island to Western Pennsylvania, Beaver
Falls to be precise. I now saw on the worldmap Glenda took a photograph off,
that there is a pin right smack in the middle of Pittsburgh. I'd be
interested to learn who is in the area, to get some more ideas what to look
for before I finally get started on mine.

Nice to hear that everybody had a lot of fun at the gathering; now that I
moved half way there I hope that I can make it next year.

Greetings,

Wolfgang Decker

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of glenda mcelwee
Sent: Friday, September 09, 2005 11:21 PM
To: KRnet
Subject: Re: KR> KR Gathering Photos



Friday photos of the KR Gathering are on my website www.awesometrvl.com



Glenda McElwee



-
 Click here to donate to the Hurricane Katrina relief effort.
___
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR>fuel tank

[Wolfgang Decker]

Ron was right, its High Density Polyehtylene, not heavey duty. The HD
relates to the length of the Ethylene polymer chains, as well as the
resulting molecular weight of the polymer. Typical applications for HDPE are
e.g. those shopping bags you get at the grocery store. LDPE, or low density
polyethylene, is mostly used in polyethylene films for cheap packaging, such
as around diapers or the magazines that are mailed.

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Mark Jones
Sent: Friday, December 17, 2004 12:35 PM
To: 'KRnet'
Subject: RE: KR>fuel tank


you're right, I typed that wrong (heavy duty polyethylene)

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Ron Freiberger
Sent: Friday, December 17, 2004 11:29 AM
To: 'KRnet'
Subject: RE: KR>fuel tank


Close, but no prize

Ron Freiberger
mail to rfreiberger at swfla.rr.com  <- substitute an @ sign ;o)

-Original Message-On Behalf Of Mark Jones

HDPE (heavy duty polypropylene)





___
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net

please see other KRnet info at http://www.krnet.org/info.html
___
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net

please see other KRnet info at http://www.krnet.org/info.html

KR> KR2 Parts For Sale

[Wolfgang Decker]

When do you guys learn that this mail could be sent directly without
stuffing the inbox of 600 members on the net that do not need to get this
message??/

Check the header of the e-mails and you have the direct e-mail address. Save
us all this spam.

Thanks

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of mshu...@aol.com
Sent: Thursday, November 11, 2004 4:11 AM
To: KRnet
Subject: Re: KR> KR2 Parts For Sale


ok that would be great if you could find out an ETA on the parts so I can
try to be thier when they show up at my hanger
Thanks Matt

___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> G limit

[Wolfgang Decker]

John,

how and who came up with this rule? Is there any science behind it?

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Martindale Family
Sent: Friday, September 24, 2004 6:51 PM
To: KRnet
Subject: Re: KR> G limit


Joe

The KR2 is rated at +7/-7 G at a gross of 900lbs. A loose rule of thumb is
to lose 1G per 100 lb thus at 1300lb your're looking at only +3/-3. Not
sufficient margin in my opinion. Further your stall speed and thus approach
speed is likely to be way up. I don't know just what the G limit relates to.
It may be the wing attach fittings or it may be the engine/firewall
brackets. No one I know has tested their aircraft to destruction to find out
:-)). If you want a bigger useful load you would be better going to another
design and probably paying more.

John

The Martindale Family
29 Jane Circuit
TOORMINA NSW 2452
AUSTRALIA

phone: 61 2 66584767
email: johnj...@chc.net.au

At do you know, preferably first hand, about flying the KR2 at gross
weights
approaching 1300 pounds?


___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> FYI from EAA

[Wolfgang Decker]

Unfortunately it seems to be true. Go to EAA's webpage and check out the
news from last week. EAA sent a newscast by e-mail last week announcing that
this highly insane and populistic proposal was announced on the Senate's
floor. I guess it is up to us to take as much action as possible to work
against it.

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Ray Fuenzalida
Sent: Sunday, September 12, 2004 11:20 PM
To: KRnet
Subject: Re: KR> FYI from EAA


This can't be true.  No one is that insane.  This is
probably one of those internet hoaxes.  I would check
it out very thoroughly before I would get upset.  If
true, I would send money to his opponent.
Ray

--- Timothy Bellville 
wrote:

> Do you have a web site or number for this Bastard,I
> hope he is up for
> reelection and gets his ass kicked.
> Tim
> - Original Message -
> From: "Ron Eason" 
> To: "KR Net" 
> Sent: Sunday, September 12, 2004 2:48 PM
> Subject: KR> FYI from EAA
>
>
> > Senator,
> >
> > Please strongly oppose a newly introduced bill by
> Rep. Anthony Weiner
> > (D-N.Y.)  Bill (H.R. 5035) would require the
> Department of Homeland
> Security
> > to create a method of screening all passengers and
> property on each flight
> > of all passenger aircraft in the U.S., including
> general aviation aircraft
> > of all types. It would also prohibit any
> non-airline aircraft from flying
> > within 1,500 feet of any structure or building,
> and prohibit non-airline
> > aircraft from flying over any U.S. city with a
> population of 1 million or
> > more. It would further require that pilots of all
> aircraft in U.S.
> airspace
> > remain in contact with the Federal Aviation
> Administration, presumably by
> > radio, regardless of altitude or location.
> >
> > I am a GA pilot and believe this is un-nesessary,
> over-reactive  and be
> very
> > expensive, in the name of Home Land Security.  We
> GA pilots are reponsible
> > and follow the FAR's. We can do our own policing,
> and we do.
> >
> > Sincerely,
> >
> > Ron Eason
> > 714KZ
> >
> >
> >
> > ___
> > to UNsubscribe from KRnet, send a message to
> krnet-le...@mylist.net
> > please see other KRnet info at
> http://www.krnet.org/info.html
>
>
>
> ___
> to UNsubscribe from KRnet, send a message to
> krnet-le...@mylist.net
> please see other KRnet info at
> http://www.krnet.org/info.html
>


__
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around
http://mail.yahoo.com

___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> DAR visit

[Wolfgang Decker]

Congratulations, Mark,

I am at least five years away from this, but still hopeful to get started
this winter.

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Mark Langford
Sent: Wednesday, September 01, 2004 5:02 PM
To: KRnet
Subject: Re: KR> DAR visit


Mark Jones wrote:

> Good luck with your DAR. You never knowgive him a few Amberbocks and
he
> may just let you have it. Literally Please give us a report later as
to
> how it goes.

You are just not gonna believe this, but I am now the very happy owner of a
pink "Special Airworthiness Certifcate for N56ML!!!  It didn't even involve
Amber Bock, but I DID buy him lunch at Arby's.

I have a fairly short list of stuff that he reminded me to do, but still a
fairly long list of stuff that I really need to do before it can fly.  But
all the sudden I feel a whole lot closer to flying this thing.

What's it gonna take to wipe this grin off my face?

 yeeEEE HAAaaa...

Mark Langford, Huntsville, AL
N56ML "at"  hiwaay.net
see KR2S project at http://home.hiwaay.net/~langford



___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> Carbon Seat

[Wolfgang Decker]

Hi Netters,

one thing you guys should be aware off is that in case of a crash a carbon
fiber seat is the last thing I want to be sitting on! While carbon fiber is
pretty strong, it has the nasty habit in case of failuer of crumbling and
shattering into small, sharp pieces that can embedd themselves nicely in the
flesh of you bottoms. It will take a surgeon forever to take these pieces
out, if he/she is able to find them all!!!

Many of the carbon fiber aircraft built today are actually made from
glass/kevlar around the cockpit. Glass fiber as well as kevlar fiber keep
their integrity to a much larger degree when the structure fails. The resin
may break apart, but the fibers stay together much better than compared to
carbon fiber. The reason for this behaviour is that carbon fiber cannot take
any load perpendicular to the fiber. You only need to take a strand (or
roving) of carbon fiber and make a knot into it and then pull on the ends.
It will break without any effort, because it is loaded perpendicular to the
fiber direction.

As nice as these seats look, do yourself a favour and think about it twice.

Just my famous two c's.

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Dan Heath
Sent: Sunday, August 29, 2004 6:07 AM
To: kr...@mylist.net
Subject: Re: KR> Carbon Seat


Dean,



We made passenger and pilot seats separate. One of ours weighs only slightly
less than your whole seat. Using the "Hat Trick" was a good idea. Ours is
made using wooden ribs, foam, and one layer of carbon on each side. Our seat
back weighs almost as much as your seat and it is made with 1/4" Last-O-Foam
and one layer of carbon on each side.

If you plan to put your radio antenna in the back fuselage area, think again
about making the back out of carbon. You may also have to put an ELT antenna
back there. You need to plan for your push tube that may be going under the
seat as well as the center seat belt attachments that may have to exit
through the seat. Also, depending on the canopy that you will or do have,
will you be able to get the seat in and out of the plane?

Our seat back is carbon, so I had to mount the antenna outside and had to
make more cuts and repairs than I can remember when it came time to put in
the seat belts.

That is a really nice looking seat.



"There is a time for building and a time for GOING TO THE GATHERING, and the
time for building has long since expired."

See you in Mt. Vernon - 2004 - KR Gathering http://KRGathering.org

See N64KR at http://KR-Builder.org - Then click on the pics

Daniel R. Heath - Columbia, SC




___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> Oshkosh Attendance - Disappointing

[Wolfgang Decker]

Folks,

I just got back from Oshkosh, it's 12:30 in the morning. I was extremely
disappointed to miss the only KR-2 that was there. I was really hoping to
get some input before I finally start on my project.

I know, I will get a hundred responses telling me I should come to the
gathering. I don't know about you guys, but my vacation days are rather
limited, and I have a family that appreciates it if I spend them with them.
I go to Oshkosh to get the maxiumum impression on all the planes that are
out there, and to pick up on other building techniques as well. I also go
because I usually go with friends from the area, and they are not very
interested in going to a type restricted meeting. My friends however were
asking me about the apparent absence of KR planes. The only one we saw was
the KR-1 on display in the FAA building.

Looking at the many complains that are on the net about not enough poeple
picking up the KR plans I really wonder what you are asking for. I don't
think that you can expect a larger crowd to appreciate this plane, if you
show it at "KR-only" gatherings. I don't know about the history with KR's
and the EAA, I joined in 1996, and frankly, if I had not picked up last the
last edition of Kitplanes Magazine that featured all the kit and plans build
aircraft, i wouldn't even know about the existence of the KR. The KR-2 is a
heck of a deal, and I bet a lot more enthusiasts would pick up the plans for
it. I looked at many kits out there, but there is hardly anything below $
20K to start with, and some can build 2 KR-2's with that money.

I just had to vent this out. Go ahead, flame me, I am off to my bed now
anyway.

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of robert glidden
Sent: Friday, July 30, 2004 6:45 PM
To: KRnet
Subject: Re: KR> Oshkosh Attendance


Mark
Just got home from osh today about 3:30.Was great finally meeting you and
Mark L. and Rich.Was super finally getting to set in a KR especially while
it was ruuuning.Sorry my key was "missing out." Just kidding the project
looks great looking forward to seeing everyone at the
gathering.Bob   Original Message -
From: "Mark Jones" 
To: "'KRnet'" 
Sent: Friday, July 30, 2004 9:58 AM
Subject: RE: KR> Oshkosh Attendance


> Ed,
> By golly it is only 55 days. I bet Stephen didn't know that. :-)
>
> Mark Jones
> Mueller Sales Corporation
> Ph: 262-781-5310
> Fax:262-781-4130
> E-mail: mjo...@muellersales.com
> Web: www.muellersales.com
>
>
> -Original Message-
> From: ejans...@chipsnet.com [mailto:ejans...@chipsnet.com]
> Sent: Friday, July 30, 2004 9:47 AM
> To: KRnet
> Subject: Re: KR> Oshkosh Attendance
>
> I echo what Jim says about KR attendance at OSH.  I think it's due to a
> number of factors rather than just a single one, such as Herb's accident.
> As far as the accident, I think I remember that the weather was pretty hot
> that day and there was quite a long line of airplanes and a long wait for
> guys to get in the air.  I remember seeing Herb and a couple others
standing
> outside next to their planes on the taxi way.  So, it's possible that he
was
> not feeling very well at the time.
>
> Also, it's been said that many KR builders are pretty hard working
> individuals and it may be difficult for some to take off work to attend.
> Like the Pietenpol clan and other type fly-ins, the KR group really enjoy
> their own gathering - many, even more than Oshkosh.  It's often a matter
of
> choice.
>
> Let's all hope for good weather.  This Gathering at Mt. Vernon should be a
> fun one, for sure.  Again, how many days left, Mark?  :o)
>
> Ed Janssen
> mailto:ejans...@chipsnet.com
>
> - Original Message -
> From: "Jim Faughn" 
> To: "'KRnet'" 
> Sent: Friday, July 30, 2004 7:50 AM
> Subject: RE: KR> Oshkosh Attendance
>
>
> > This is pretty much what happened although it leaves out the
> > conversations I had with the EAA months previous that set up a KR only
> > flyby. We even had conversations about a possible missing man formation
> > to honor Ken. When we arrived at Oshkosh were not on the schedule. I did
> > a lot of talking and at the last minute in place of one of the mornings
> > general flybys we were told we could fly which really did make it a last
> > minute thing. Whether this did or didn't have anything to do with Herb,
> > we will never know. However, I still carry this with me because I'm also
> > the one who set everything up and witnessed the crash. I can say that it
> > did put a bad taste in everyone's mouth and none of us went back until
> > 97 when I called a number of the pilots and said let's put it behind us
> > and go again. It was tough to fly in that year. Of course everyone knows
> > we did the same thing in 2002 and several of us went last year too.
> > Quite frankly, I have lots of fun at Oshkosh but it is just a 

KR> Oshkosh Attendance - Disappointing

[Wolfgang Decker]

Robert Glidden wrote:

>Did you get there in time for Mark Langfords forum on KR's?I got a lot of
>questions answered staying around after the forum and taking with some of
>the guys.


Well, as I pointed out in my original mail, I only have limited amount of
vacation time. I tried to set up a visit with a customer in the area to gain
a day or two, but it didn't work out so I had to stick with the weekend.
Therefore I missed the forum as well.

All in all it was a great show at Oshkosh. I always love going there, it's
like going to "Daddy's Toyland". Although this being the 5th time going it
was the first time I attended several of the forum presentations, including
Mr. William Wynne's on the Corvair. Very interesting, and I learned a lot.
We had a nice group chat at his Zenith after his presentation. The Corvair
definitely is one of the engines to look at.

Well, now it's back to get the basement done so I really get started.

Wolfgang

KR> Attending Oshkosh

[Wolfgang Decker]

Sid,

I will stop by at the afternoon session. I suppose you are talking about the
Composites 101 course going from 1:00 to 2:30 p.m. I won't be able to make
the morning session, since my flight arrives in Appleton around 9:00 a.m.

Hope to see as many KR's at Osh' as I can.

Wolfgang

-Original Message-
From: krnet-bounces+wdecker=cox@mylist.net
[mailto:krnet-bounces+wdecker=cox@mylist.net]On Behalf Of Wood,
Sidney M.
Sent: Wednesday, July 14, 2004 9:24 AM
To: KRnet
Subject: RE: KR> Attending Oshkosh


Come by the Composites forum or the Home Builders Construction office on
Friday.  After the forums we can talk KR's.
Sid Wood, Tri-gear KR-2 N6242
Mechanicsville, MD USA
sidney.w...@titan.com


 -Original Message-
From:   krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]  On Behalf
Of wdec...@cox.net
Sent:   Tuesday, July 13, 2004 2:53 PM
To: KRnet
Subject:Re: RE: KR> Attending Oshkosh

How about those who cannot make it the whole week? I will be in Oshkosh from
Friday through Sunday (July 30 through August 1), and would really welcome
the opportunity to see one or two KR's as well as talk to some builders. Any
idea for on informal meeting during these days?

Wolfgang
>
> From: Mark Jones 
> Date: 2004/07/13 Tue PM 02:03:59 EDT
> To: 'KRnet' 
> Subject: RE: KR> Attending Oshkosh
>
> There is a KR forum (meeting) on Tuesday July 27 at 11:30am in tent #10.
> This will be the biggest single gathering of KR builders, pilots and
> those who want to be. This is your best chance to meet a lot of KR family
> members.
>
> Mark Jones
> N886MJ
> Wales, WI
> flyk...@wi.rr.com
>





___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> What's a speed break?

[Wolfgang Decker]

Duncan wrote:


BTW, reading the many posts which deal with KR2 pitch sensitivity in which
the comparison is frequently made to a Cessna 152 or similar aircraft, also
has me intrigued.  I've never flown a 152 or anything like it.  I've just
got my PPL in a Robin R2120.  Low wing, O-235, glides like a brick.  It
certainly doesn't fly for more than a few seconds hands-off, no matter how
carefully it is trimmed or how stable the air.  I regard this as
normal.  Anyone else flown one of these planes?  If this is all that is
meant by the KR2's pitch sensitivity, then my worries are over as far as
this is concerned.  Or is the KR2's flight characteristics more sinister
than this?


Duncan,

i have not flown a KR-2 yet, hopefully there is somebody at Oshkosh you may
give me an opportunity. I did, however, get my training on a Jodel-Robin
DR-300, which I suppose is a little heavier, but otherwise similar to the
R2130. Later on I also flew different Cessna models - 172, 182 and 206, and
none of them were comparable in sensitivity to the DR-300. Also, although a
tri-gear, the DR-300 had a tendency to float, and float and float ..., If
the engine was not pulled back to fully idle, it would go in ground effect
forever. The best way to land the aircraft was to get close to the ground
and slowly pull all speed out of it, until the stall-warning came on the
bird nicely settled down. After that i could put a Cessna on the spot,
because it did land like a brick.

I am hoping that the KR-2 will fly as sensitive as the DR-300. Alhtough I
indeed had to keep my hand at the stick at all times, it was a pleasure to
fly. Very easy, very responsive, and I am looking forward to get something
similar once I am done.

BTW: Who is coming to Oshkosh? I know, i know, I should come to the
gathering, but I will not be able to make it then due to some family
appointments around that time. Maybe next year.

Wolfgang+


___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> BMW engines adn Diesel Engines

[Wolfgang Decker]

Net Heads,

as promised earlier I hereby forward something about the BMW R1100, that is
used in Microlights in Europe. A company in England is offering these
complete with gears and everything. The interesting part is a centrifugal
clutch, that allows the prop to freely spin when the engine is off. The
address is: http://www.microlightsport.co.uk/Catalogue/bmwengine.htm

Also, I stumbled across a German webpage from a school for A Mechanics in
Munich, that has modified a small three cylinder Diesel engine from VW.
Looking at the latest developments coming from VW and Audi, these could be
interesting in the close future. Audi just released a 1.4 liter 3 cylinder
turbo charged and direct injected diesel engine, that develops about 90 HP.
The engine block is aluminum, and to my knowledge the engine weight is way
under 100 kg. The real intersting part is, that the engine develops a torque
of about 215 Nm (about 165 ft.lb.) from 1900 to abot 3000 rpm. This would
make it ideal for a direct driven machine.

I will try to get more information fromt the German school about their work,
anybody who is interested may mail me directly.

Cheers,

Wolfgang

KR> BMW engines adn Diesel Engines

[Wolfgang Decker]

Doug,

as far as I can tell from the one that works in my Passat (1.9 liter TDI) it
is way over 100 kg. Also, the torque is "only" 149 ft.lb., although it
develops that torque at 1,900 rpm already, which would make it perfect for a
direct drive engine. The weight is somewhat comparable to a O-320 or O-360,
so if you think you can get one of those into a KR-2 than go for it. These
engines are somewhat comparable to the aero-diesels that are currently under
development in Europe.

The newer Diesel engines built by VW and Audi have highly improved injection
systems and motor management. They now inject the fuel with up to 2,000 bar,
and have a separate pump for every cylinder. The engine computer also is
improved.

I will keep an eye on the development of these new diesels, and since I will
start my KR-2 this winter I still have a little time to finally commit to an
engine.

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Doug Rupert
Sent: Saturday, July 10, 2004 10:48 PM
To: 'KRnet'
Subject: RE: KR> BMW engines adn Diesel Engines


What does a regular VW diesel weigh? Don't know the specs but they are
plentiful and rebuilding a diesel is a snap.
Doug Rupert




___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> Harleys and auto engines/BMW

[Wolfgang Decker]

Go one step further and put the R1100 in. It produces up to 90 HP, and is
actually used in Microlights in Europe. If I can find the link I will post
it in one of the next messages.

My only concern with the use of a 2 cylinder engine is the cooling however.
After all, the excess heat needs to be dissipated through a much smaller
surface area compared to the likes of a VW or a Corvair.

Any thoughts on that?

Wolfgang

-Original Message-
From: krnet-bounces+wdecker=cox@mylist.net
[mailto:krnet-bounces+wdecker=cox@mylist.net]On Behalf Of gleone
Sent: Tuesday, July 06, 2004 12:22 AM
To: kr...@mylist.net
Subject: Re: @WL KR> Harleys and auto engines


The BMW motorcycle engine is being used for light aircraft.   Actually, BMW
was making aircraft engines before they began building motorcycles.  The BMW
logo represents a spinning propeller.  Anyway, here are a couple of links
worth looking at:

http://www.ultralightnews.com/engineinfo/bmwconversion.htm
http://www.homebuiltaircraft.com/classified/AdDetail
aspx?itemid=153=+160

KR> High Alt, Larger Wing Span

[Wolfgang Decker]

Larry,

a larger wing span indeed would help, provided that the airfoil is
appropriate. It is not necessarily true, that the larger wing span produces
more drag, on the contrary.

Drag from the wing is created in two ways: the first is the drag that is
associated with the specific lift you create at specific speeds. That
correlation can be found for every airfoil in form of the CL/CD (Coefficient
of Lift vs. Coefficient of Drag) diagrams. This is the diagram were the
plotted graph typically looks like a crooked C.
The other part of the drag is created by the fact that the wing is limited
in span, so there is a flow of air from the bottom of the wing towards the
top of the wing going around the edge of the wing. This is what creates the
vortices at the end of the wing, and that is why some poeple put winglets on
the wing end - to prevent this cross flow of air. This darg is by the way
called the induced drag. The drag created by this flow is a multiple of the
drag created by the lift.

If you want to build a low drag aircraft, you try to build with maximum wing
span and a maximum lenght to depth ratio. This way you can minimize induced
drag. This is done with high performance gliders. A good example is the new
"eta" aircraft, information about which can be found in www.leichtbau.de/eta
. This glider has a wingspan of more than 100 feet, and it's best glide
ratio is somewhere close to 70. (Imagine this, you glide 70 miles with
loosing only 1 mile altitude). And yes, these gliders can go fast (140 mph
or faster!!).

One last thing: Gliders certified in Germany need to fulfill +7/-4 g load
requirement, if it is approved for acrobatics it is +11/-7g. Remember, as a
glider pilot you love to fly right into turbulent air, a.k.a. thermals. On a
good day it can be gut wrenching, but exhilirating. If you catch a thermal
that takes you up with about 1,500 fpm it's rough flying, but looking at the
altimeter as it turns so quickly and all that without any engine, that's
what's great about glider flying.

Anyway, bottom line is: If you can increase your wingspan with paying the
penalty of excessive more weight, and if you are sure that the the spars can
carry the additional loads it certainly will help at higher altitude.

Wolfgang

-Original Message-
From: krnet-bounces+wdecker=cox@mylist.net
[mailto:krnet-bounces+wdecker=cox@mylist.net]On Behalf Of larry
severson
Sent: Thursday, June 24, 2004 10:34 AM
To: KRnet
Subject: RE: KR> High Alt



>
>Let's see if I understand... If I want better climb on a hot day or at high
>altitudes, what is it that I need? OH, I know, longer wings. Darn, I think
I
>just flunked. OH OH, now I know, it's POWER.

Gee, I guess that those powered gliders are just a figment of my
imagination and lying marketeers.

Longer wings do increase drag, but they also increase lift, reduce stall
speed, and make possible flight with a less powerful engine.

As they said at school, with enough power one can make a brick fly, but if
power is restricted one had better give the vehicle enough wing area to
lift the brick.


Larry Severson
Fountain Valley, CA 92708
(714) 968-9852
lar...@socal.rr.com


___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> epoxy safety

[Wolfgang Decker]

As with all chemicals it is advised to read the Material Data Safety Sheets
(MSDS) that are associated with the chemicals. This is for resins, but also
for any kind of solvent. If the data sheets do not come with the product,
they can be ordered by from the manufacturer (who have to provide them, as
required by OSHA). The MSDS contains information about problems with
exposure to skin, eyes and breathing. They also give ideas what to use when
in contact with skin. Typically water and soap is the choice of cleaning
agent, when in contact with resin. Aceton disolves all fats in the skin,
dries it out and helps transport the resins into the skin, making exposure
even worse.

Be aware of Latex gloves, as they are not as tight as you may think. In
fact, Aceton goes right through it. Better are Nitril or Butylen gloves. In
my line of work I have to work a lot with acrylic monomers, some of which
are extreme skin sensitizers, others are less harmful. From there I also
know that some poeple react very quickly to some of the chemicals, while
others to not appear to have any problem whatsoever. All in all, the best
defense is to use proper protective wear such as nitril gloves.

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Brian Kraut
Sent: Tuesday, June 01, 2004 8:57 PM
To: KRnet
Subject: KR> epoxy safety


When I was at Sun and Fun I was working at the Wicks booth with their
manager that had been with them for twenty something years.  He told me that
of all of the people he knew that had serious health problems from epoxy,
that most of them were using gasoline, MEK, or Acetone to clean the epoxy
off of their hands.  Aside from the other nasty things those chemicals can
do to you, they also open up your pores and let the epoxy get in them.
Obviously, it is best to uses gloves, but if you do get epoxy on your hands
use something a little safer to get it off.

Brian Kraut
Engineering Alternatives, Inc.
www.engalt.com


___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> carbon fiber

[Wolfgang Decker]

The 282 has a Kevlar Tracer, so you can see after cure the direction you did
lay the cloth. If you ever have to work through that tracer, or decide to
sand the surface with the tracer exposed, prepare for hell. I would use the
cloth without the tracer, it will do the job. BTW, the Wicks cloth is 50"
wide, that Advanced Composite Trader material is only 42" wide, which also
may explain some of the price difference.

As was mentioned before, C-fiber for use in resin composites are always
surface coated, otherways they do no wet and do not stick to the resin. The
282 cloth is made from 3K strands, which means there are 3000 filaments per
strand. It is build from a 33MSI fiber, which is the most basic carbon fiber
out there. It has a tensile strength of about 500 ksi. Other grades may have
higher tensile strenght, or higher tensile modulus.

If you would like to learn a bit about different grades of carbon fibers, go
to http://www.torayusa.com/cfa/index.htm, which is the home of Toray Carbon
Fiber (America). They are, btw, one of the major suppliers to Boeing
(through Toray Composites in Seattle). You find some good information about
different grades of carbon fibers there. And if you go to www.torayusa.com
and hit the Toray Plastics (America) (TPA) link, you can see the building I
spend my weekday daytime hours in :=)

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Brian Kraut
Sent: Monday, May 24, 2004 7:09 PM
To: KRnet
Subject: RE: KR> carbon fiber


I am sure that all three sources move enough CF that expiration is not a
problem, but perhaps the commercial grade dousn't have the coating to begin
with.  I need to call Wicks tomorrow anyway so I will ask what the
difference is since they sell both.

Brian Kraut
Engineering Alternatives, Inc.
www.engalt.com

KR> Fly-In in Rhode-Island

[Wolfgang Decker]

Hi Netters,

after being drawin into a frency of project work that send me overseas 3
times in 6 weeks and rendered me useless in my free time I hope that i can
follow the net a little better now.

Our young EAA chapter here in Rhode Island is planning a little fly-in for
May 22. Information can be found at
http://members.cox.net/wdecker/Strawberry.html It would be nice if one or
two KR's from the area could make it in there.

Greetings,

Wolfgang
KR-2S, still plans only!!

KR> Balancing Ailerons

[Wolfgang Decker]

Hi Netters,

I followed the balancing discussion for some time now, and to through some
more fuel into the fire (or to just post a dumb question): Shouldn't the
Ailerons balance each other, since if the left one goes down the right one
goes up? I personally do not recall that we used balancing weights on the
gliders we build at the glider group in Germany.

There was only one reason to add counterweights to ailerons, and that was to
increase inertia of the system as to reduce Eigen-Frequency of the whole
system to a manageable frequency. Schleicher Aircraft used an interesing
method in the ASW-19, by putting lead into the top of the control stick.

You may forgive me if the self balancing of the ailerons is not possible
with the KR-2, as I am not yet fully familiar with the control mechanics. I
got my plans only a few weeks ago and still in the study phase.

Wolfgang

KR>Turbocharging a KR

[Wolfgang Decker]

  j.. Added safety in an emergency from greater glide time.  Area for
landing increases as the square of the range
  At 6,000' glide is about 7 minutes, 12.5 miles

  At 12,000' glide is about 14 minutes, 25 miles

  At 18,000' glide is about 21 minutes, 37.5 miles

If that would be this easy!! The gliding time unfortunately does not in
increase in linear fashion.

About a year or so ago there was a series of articles in Sports Aviation
dealing with the changes in flight characteristics as well as the relation
of speed and air pressure at high altitudes. 

Generally since the air density decreases with increasing altitude you need
to fly faster in order to get the required lift, thus your mininum speed or
stall speed increases as well. In extreme cases your maximum speed is just
about were your stall speed is. Thus, your speed envelope is extremely
narrow. 

For gliding, this means that you may have to glide at a higher speed than
what the best glide rate would be, thus loosing performance. 

All in all though flying at higher altitude gains a lot of advantages. While
flying at 18,000 feet at 200 mph IAS you indeed fly about 300 mph or more
TAS, all because of the lower air density. 

Wolfgang




to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html
-- next part --
A non-text attachment was scrubbed...
Name: winmail.dat
Type: application/ms-tnef
Size: 2276 bytes
Desc: not available
Url : http://mylist.net/private/krnet/attachments/20040308/632cd040/winmail.bin

KR>some of us dont have RV money!

[Wolfgang Decker]

Good Call,

With limited vacation time and a family that demands - and rightfully so - a
good share of it, it is nearly impossible to justify more than one big
meeting per year, particularly if it is half way across the continent.

My destiny each year is OSHKOSH, for the simple reason that it is the most
complete gathering of all. Here I do not only meet folks building one or two
aircraft types, but can collect information on everything that is related to
building your plane at home. Whether it is all the developments around
aircraft engines, new building materials, Workshops, Avionics, you name it,
it most likely is there. So besides meeting the other folks it gives me the
most bang for the buck.

I chose to build the KR-2S for several reasons, the most important ones are:

1. Build to Plans: No major expense for purchasing a kit require. I can pay
as I go along, and I most likely go along as I can afford it. This may not
be the most effective way in doing it, but so be it.
2. Modifications: The simplicity of the design really invites to
modifications, after all from what I read and hear the KR-2 is the ancestor
of a lot of 'advanced' designs such as the GlasAir.
2. KR-Net: I found this group an extremely good example of comprehensive
knowledge and help that this available on the internet.

It is with some sorrow that I hear that KR-pilots do not come to the large
gatherings. IF would be nice if at least one or two finished KR's show up at
Oshkosh this year, as I have already booked my tickets for that show.

On the other hand I would certainly take the opportunity to visit a more
local fly-in or gathering. Our young Rhode Island Chapter 1363 is currently
organizing a fly in for late May, early June. I will keep you posted for the
exact dates.

Wolfgang
Wakefield, RI

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of flymaca711...@aol.com
Sent: Monday, March 08, 2004 8:54 AM
To: kr...@mylist.net
Subject: KR>some of us dont have RV money!


I dream of going to the Kr gatherings but IM a realest I cant take that much
time off without a lot of planing and money.  IM not willing to give up my
fishing trip money  for others and spend that money to fly so far just to
come
back all rag out for others that may piss me off   because of there big
heads
that have zero time in a Kr or a light aircraft  the fact is if i ran in to
some
of the folks the put me down for my poor spelling god help them IM Irish and
it would be pay back time.  I hope to make sun and fun and VA eaa fly in if
not that's life

give the poor folk a break the Kr wrote the book on economy thats how i made
my dream come true if you what to see a kr find somebody on the net and go
see
it fly maybe a ride






mac the knife and im on your six!
flymaca711689@aol
___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR>Virus??

[Wolfgang Decker]

The translation is quite good, actually.

T-Online is the largest online service provider in Germany, owned by the
Deutsche Telekom. Maybe somebody signed up with an address that redirected
the message to the t-online support center, which answered with an automated
reply.

Wolfgang

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Ameet Savant
Sent: Friday, February 27, 2004 7:07 PM
To: KRnet
Subject: Re: KR>Virus??



The translation of the email is:

==
Automatically acknowledgement generated

Very honored T-ONLINES customers, very honored
T-ONLINES customer

We test your inquiry as quickly as possible and report
ourselves after that again with you.

With kind regards

Your T-ONLINE service center technology

==

Seems like someone subscribed to the kr net with this
email address, which is some kind of online service
center support email. I am sure they have unsubscribed
by now since we are not getting any automated replies.

I hope this puts the Virus theory to rest!

BTW: the translation was done using
this website http://ets.freetranslation.com/

I certainly don't speak/read/write German

Cheerio!
Ameet
ameetsavant at yahoo dot com

> Does anyone read german and know what was said?
> Orma L. Robbins


__
Do you Yahoo!?
Get better spam protection with Yahoo! Mail.
http://antispam.yahoo.com/tools

___
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR>RE: Get it certified outside U.S.territory

[Wolfgang Decker]

Ralf,

I wouldn't give up that fast. Check out www.ouv.de, they do help to get the
experimental scene in Germany going. Get in touch with them and see what can
be done.

Good luck,

Wolfgang Decker

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Simon
Sent: Saturday, January 17, 2004 2:02 PM
To: kr...@mylist.net
Subject: KR>RE: Get it certified outside U.S.territory


Dear Vidal,

thanks for giving me the big picture on the problem. For shure I will NEVER
try to register anything with the german aviation administration ( LBA ) .
I don't think there is anyone with a KR2 in germany, and there will never
be one.

The goal of the german aviation administration is to keep people out of
flying. Looks like I have to dump my plane.

Best regards

Ralf Simon


___
to UNSUBSCRIBE from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/instructions.html

KR>Prospective KR Builder

[Wolfgang Decker]

Hello KR netters,

I am new to the list, although I follow the postings for a couple of months
now. I am deeply looking into building a KR-2S, but I would like to have a
chance to see or maybe fly one of them first. Does anybody know, whether
there is a KR-2 iin the Rhode Island or Southern New England area?

Any contact information would be greatly appreciated.

Thanks,

Wolfgang Decker
Wakefield, Rhode Island
wdec...@cox.net

KR>Get certified outside U.S.territory

[Wolfgang Decker]

Ralf,

to get an aircraft certified in Germany you need to contact the Luftfahrt
Bundesamt (LBA) in Braunschweig. From my experience (I mastered at the
Technical University Braunschweig and had a lot of dealings with this
office) it is rather difficult to get an experimental aircraft certified.

I would recommend to get in touch with the Oscar Ursinus Vereinigung,
which - to my knowledge - is a registered chapter with the EAA as well. I do
not have any contact information - unfortunately - but you may check the
chapter listings for Germany on the EAA webpage. Through the OUV you might
be able to get some type of certification for experimentals in Germany, as
most of the homebuilders in Germany do it through them.

Good luck,

Wolfgang Decker
Wakefield, Rhode Island
wdec...@cox.net



___
to UNSUBSCRIBE from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/instructions.html