KR> canopy hinges.

[Paul Visk]

I'm with Mark L. on not opening the canopy in?
flight.? I'll give a third option, similar to?
Mark Jones but with more roll over?
protection. #

I like the rollover protection. I made a 1.5" fwd Turtle deck bulkhead out of 
carbon fiber and foam. ?Boy! Is this thing strong. I stood on just the bar at 
220 lbs. I know it would even take a lot more weight then that. See pic

Paul Visk
Belleville Il.
618-406-4705
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KR>Canopy Hinges

[robert cooper]

Mark Lankford
  Do you still have the CAD file of your canopy hinges? Can they be plotted on 
graph paper? I don't have a CAD program and I am CAD illiterate.


Robert J. (Jack) Cooper
kr2coo...@earthlink.net
Why Wait? Move to EarthLink.

KR>Canopy Hinges

[Mark Langford]

Jack Cooper wrote:

>   Do you still have the CAD file of your canopy hinges? Can they be
plotted on graph paper? I don't have a CAD program and I am CAD illiterate.<

Jack, there's a jpg of the drawing at
http://home.hiwaay.net/~langford/khinge.jpg , and a few more details of the
installation about half way down http://home.hiwaay.net/~langford/misc.html
.  I guess I need to put that stuff on the canopy page rather than in
miscellaneous.  I believe I've made a pdf file of the hinges themselves, but
it's at home, and I'm at work.  I'll try to remember to email them to you
tonight, and I really should put a link to those from the canopy page as
well.  If I forget, remind me...

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

KR>canopy hinges

[Mark Langford]

NetHeads,

Several folks have asked about canopy hinges recently.  If I were to do it
again, I'd build them very similar to the way John Martindale did it, which
is to build up canopy rails on top of the longerons that stradle the
instrument panel and hinge at the outer edges of the canopy.  This leads to
a very strong and stable hinge setup.  See
http://home.hiwaay.net/~langford/jmartindale/ for a few photos that will
give you the idea...

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

KR>canopy hinges

[Ross Evans]

HI guys I built my hinges and canopy in the last month the main problem is 
getting the canopy frame to lift away from the front deck to over come this 
we built a sweeping hinge so as the canopy opens it lifts away it is not to 
hard to do u just have to ensure the hinge lifts more than the length when 
the canopy it is in the closed position I have photo's of them but depending 
on how your front deck is constructed will depend on the sweep of the hinge 
u will need I have an alliminium headertank and a removeable front deck the 
canopy is mounted to the deck which has a beam across
cheers
Ross Evans
fly...@hotmail.com


>From: "Mark Langford" 
>Reply-To: KRnet 
>To: "KRNet" 
>Subject: KR>canopy hinges
>Date: Tue, 6 Jan 2004 20:02:19 -0600
>
>NetHeads,
>
>Several folks have asked about canopy hinges recently.  If I were to do it
>again, I'd build them very similar to the way John Martindale did it, which
>is to build up canopy rails on top of the longerons that stradle the
>instrument panel and hinge at the outer edges of the canopy.  This leads to
>a very strong and stable hinge setup.  See
>http://home.hiwaay.net/~langford/jmartindale/ for a few photos that will
>give you the idea...
>
>Mark Langford, Huntsville, AL
>N56ML "at"  hiwaay.net
>see KR2S project at http://home.hiwaay.net/~langford
>
>
>
>
>___
>see KRnet list details at http://www.krnet.org/instructions.html

_
E-mail just got a whole lot better. New ninemsn Premium. Click here  
http://ninemsn.com.au/premium/landing.asp

KR>canopy hinges

[Mark Langford]

> HI guys I built my hinges and canopy in the last month the main problem is
> getting the canopy frame to lift away from the front deck to over come
this
> we built a sweeping hinge so as the canopy opens it lifts away it is not
to ...

I have a keyboard with a functioning "period" key, if you'd like for me to
send it to you...

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

KR> Canopy hinges.

[David wade]

I am no where near starting wood work yet but that does not prevent me from 
starting on other parts such as the canopy hinges and various other metal 
parts. The  part I am emulating 
 is Mark Langfords canopy hinges. I was wondering the procedure that He used to 
install them as what I want to do is install them and keep them securely in 
place. Any Ideas? I was contemplating installing a bulkhead behind the firewall 
to install the hinges but I want other opinions before i make an Irreversible 
and expencive mistake.
Mr wade

KR> Canopy hinges.

[Mark Langford]

David Wade wrote:

"The  part I am emulating is Mark Langfords canopy hinges. I was wondering
the procedure that He used to install them as what I want to do is install
them and keep them securely in place. Any Ideas?"

I'm not sure what you mean by needing more details on how I installed the
hinges.  I assume you've seen the details at http://www.n56ml.com/kcf.html ,
but maybe not.  The only detail I can see missing is that on one end they
are fastened to a bulkhead that's glassed into the front deck (visible in
the 17th and 19th photos from the top), which serves as a huge stiffener for
the front deck, but its main purpose is to support the canopy frame. The
bulkhead is 3/8 inch foam with about two layers of 9 ounce glass on each
side, rolled around the bottom so it's all continuous, and glassed to the
bottom of the deck so it's pretty solid.  I carved out the hinge attach
locations out of the foam and inserted something like 2"x3" spruce blocks
where the hinges attached to the bulkheads, BEFORE glassing the foam.  They
are quite solid, and likely overkill.  Other details of the installation at
http://www.n56ml.com/kcf.html should be thorough enough, I'd think.

I think a more space/weight efficient and stiffer (side to side) setup is
what John Martindale is using, which is similar to the Bambi's canopy hinge
system, mounted out at the longerons.  See
http://john-martindale-kr2.zxq.net/ for that idea.  I'm probably even going
to do something similar to that with Jim Faughn's side swinging
canopy...mount external hinges made from carbon fiber that allow the canopy
to swing up from the front instead of to the side, then remove the side
hinge. His turtle deck is already stiff enough to support the hinges out at
the longerons, and the load page is short and direct to the longerons.  The
advantages to a front hinged canopy are many, including self closing, lots
of cooling air in the summertime, and more importantly, the ability to sit
up on the seat back and have a great view while taxiing a taildragger.  

Mark Langford 
Teledyne Brown Engineering m/s 40
300 Sparkman Drive
Huntsville, AL 35807
mark.langf...@tbe.com   
256-726-5452 (w)  256-529-5548