KR> Gas Struts

[Mark Langford]

A lot has been said about gas strut mounting, and I'm sure it's mostly true, 
at least for the struts described.  I mounted my "Life-o-mat" struts "upside 
down" for some reason that was way too along ago to remember, and I must say 
they are as smooth as I could ever hope for, and I've had zero problems with 
them.  They also have the nice feature of slowing down at the end of the up 
stroke so the canopy is gently brought to a smooth stop.  Of course now I'll 
have to turn them around to see if it makes any difference, which will take 
about two minutes, but I can't imagine that they could work any better.  See 
http://home.hiwaay.net/~langford/04103050m.jpg ...

Mark Langford, Huntsville, AL
mail: N56ML "at" hiwaay.net
website: www.N56ML.com

KR> Fw: Ray Goree, KR2S

[Mark Langford]

Many of you will remember Ray Goree.  He made several of the Gatherings, and 
was a quiet but thoughtful guy, always having something positive to say.  See 
below...
-

Mark:  You may be aware that Ray Goree passed away on Feb 13.  He spoke highly 
of you and if you could let the KR Group know, I know that he would appreciate 
it.  His wife will be selling his KR2S on e-Bay some time in the near future.  
I am helping her write the ad.

Dick Jones, Friend of Ray
--

Mark Langford, Huntsville, AL
mail: N56ML "at" hiwaay.net
website: www.N56ML.com

KR> KR2 give-away, almost

[Darren Crompton]

>
> It is nice to have someone share a passion, . Some people
> just have a different attitude about life I guess
>
>
A very pertinent email as I have almost finished watching  Black Sky: The
Race for Space, the story of Burt Rutan's quest to be the first private
company to enter space.
The first of twelve parts can be found here

http://www.youtube.com/watch?v=j6g17OqN3EI=related

Here is a guy with attitude and passion.

Cheers.
-- 
Darren Crompton
AUSTRALIA

My web site: www.kr-2s.com

KR> KR2 give-away, almost

[Mark]

It is nice to have someone share a passion, but from personal experience the
sharing part is rare (maybe it is just me). I have run hot motorcycles
(KZ750 very hot; 0 - 60 in 2.7 secs, Harleys and so on), cars ('69 Camaro
[big Block 11 second 1/4's], 69 GTX [very street in the 12's], currently '96
Firebird formula), and now I am going for the KR. NO ONE really wants to
(share) fly in the plane with me. Mark L's daughter is doing the deed
because she trusts "dad": when I told my 15 year old daughter that I could
get the car and the plane in my garage because the "wings came off" her
response was 'no way am I flying in that'. 

I loved the night fire exercise with the M-16 during training in 1971.. go
figure: if you want to fly a 900 pound airplane at 18o mph... Some people
just have a different attitude about life I guess

Bought KR-2 project; I'm building in my living room (divorce has its'
advantages)

Mark W
N952MW (res)

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of Dave Arbogast, CISSP
Sent: Wednesday, February 18, 2009 8:31 PM
To: KRnet
Subject: Re: KR> KR2 give-away, almost

Yeah you could say so.. :-)  When I bought the plans, I was going to 
build a KR2-S, and an A gave me this project I just sold when I 
sat in it, I realized I'd  have to cut the boat and make it bigger if I 
was to ever fly with a passenger larger than a puppy.

/09 18:01:00

KR> Re: Gas Struts

[Larry H.]

Here is a gas strut company that says you can store or install their struts in 
any position. This page shows a diagram of how their struts are constructed. It 
seems that things continually change and get better, like KR2s.  : )
Larry H.

http://www.easylift.com/





The big end of the gas strut (spring) has to be up so the oil will be 
metered through a small internal orifice to get a smooth steady damped 
movement.  The seals do not have any tendency to dry out.  If you put the 
rod end upper-most, you will not get the damped action on extension, and 
then on retraction you'll get a hydraulic lock before full retraction is 
completed.  Take care not to scratch the rod or let it corrode; the rough 
spots will gouge the shaft seal and cause leaks.  The higher quality gas 
springs have an internal seal that peals back and forth something like 
peeling a latex glove inside-out off your hand or rolling the glove back on. 
The result is no shaft seal to leak.
For sources just do a Google search using Gas Springs as key words.  Some 
vendor sites will also show you how to size the gas springs for your 
application.
Sid Wood
Tri-gear KR-2 N6242
Mechanicsville, MD, USA
sidney.w...@l-3com.com

KR> Re: Gas Struts

[smwood]

The big end of the gas strut (spring) has to be up so the oil will be 
metered through a small internal orifice to get a smooth steady damped 
movement.  The seals do not have any tendency to dry out.  If you put the 
rod end upper-most, you will not get the damped action on extension, and 
then on retraction you'll get a hydraulic lock before full retraction is 
completed.  Take care not to scratch the rod or let it corrode; the rough 
spots will gouge the shaft seal and cause leaks.  The higher quality gas 
springs have an internal seal that peals back and forth something like 
peeling a latex glove inside-out off your hand or rolling the glove back on. 
The result is no shaft seal to leak.
For sources just do a Google search using Gas Springs as key words.  Some 
vendor sites will also show you how to size the gas springs for your 
application.
Sid Wood
Tri-gear KR-2 N6242
Mechanicsville, MD, USA
sidney.w...@l-3com.com


McMaster Carr or WW Grainger, do not remember for sure but someone sells 
valve adjustable gas struts. Open the valve and release pressure until it is 
where you need it. I have no idea what happens if you release too much 
pressure? Maybe more can be added, maybe it can't, I have no idea. I know 
someone who has one on his canopy but I have not questioned him about it.
I have been told that the big part (gas and oil end) goes upward when 
extended, the small shaft should be coming out the bottom when extended 
(inverted that is) the reason is said to be that the seals where the shaft 
comes out will dry out if in the opposite direction. If you look at the gas 
struts on auto hoods, van hatchback doors etc, the shaft comes out the 
bottom on all of them when extended.
Larry H.




From: "sidney.w...@l-3com.com" t
Robin,
Drilling a hole in the gas spring will produce an oil shower depending
on which end you go for. The oil is for damping, so you can get a
smooth, controlled steady movement. Proper operation depends on which
end is up. Welding will most likely destroy the elastic seals.
A better approach is to get the gas springs sized for your application.
The gas springs are rated in pounds force at full rod retraction. How
much PSI that turns out to be is not of any concern. As the rod
extends, the force will steadily diminish until it hits the stop; the

KR> KR2 give-away, almost

[Fred Johnson]

Tim wrote:
Aircar suggested at a 5000 hr build...Coot a lot of dihedral & slow for 
180hp

What about George Periera's Osprey?

http://www.ospreyaircraft.com/

he is a good friend of mine and this a beautiful airplane.

Fred Johnson
Reno, NV

KR> KR2 give-away, almost

[CldLk-Tim]

Aircar suggested at a 5000 hr build...Coot a lot of dihedral & slow for 
180hp

look here at picture here good all round proven simple build/Amphib 
.>>
http://groups.yahoo.com/group/VJ22/

Checkout Ken Welters Coot Rotary/Rotax (coupled) glass hull/wings/spar.
http://www.coot-builders.com/gallery_files/single_pages/meetings/arlington/ArlWelter.htm

I sent you 3 invites Aircar/Coot/VJ22

Good Luck deciding, that'll take another 10yrs  ;-)

KR> Gas Struts

[John Martindale]

Hi Robin

I took mine to a strut regasser to decompress them. It only took a minute
with the right gear and cost nothing. You can't go too far or the seals will
start to fail and before you know it they have to be pumped up again. 


John Martindale
29 Jane Circuit
Toormina NSW 2452
AUSTRALIA

ph: 61 2 6658 4767 (H)
mob: 0403 432179
email: johnja...@optusnet.com.au
web:www.members.optusnet.com.au/johnjanet/Martindale.htm

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of Robin Macdonald
Sent: Wednesday, 18 February 2009 9:25 AM
To: KRnet
Subject: KR> Gas Struts

Hi Guys,

I'm after some help with gas struts..snip

KR> KR for sale

[Dan Heath]

That one was out there over a year ago.  I just clicked on the link and it
worked. 

See N64KR at http://KRBuilder.org - Then click on the pics 
See you at the 2009 - KR Gathering in Mt. Vernon, Ill
There is a time for building and a time for FLYING and the time for Flying
has begun.
Daniel R. Heath - Lexington, SC


---Original Message---

From: Darren Crompton
List-Post: krnet@list.krnet.org
Date: 02/18/09 22:13:14
To: KRnet
Subject: KR> KR for sale

No, not mine!

I am not sure how I go to this page or if it is still for sale.

http://www4.tfb.com/aberlecustomaircraft/prod03.htm


Cheers
--
Darren Crompton
AUSTRALIA

My web site: www.kr-2s.com
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