Hi Gary, Many years ago a friend of mine acquired,(in a trade), a "stock" KR
with trike gear and wood wings and turtle decks, even the canopy frame was
wood. As I recall the builder, (completely unknown to me), used about a
3/32" or 3mm birch plywood, over wood ribs, bulkheads, stringers, etc. He
w
Hi Wayne
Yes I have given this process a fair amount of thought and I am convinced
that if I work carefully (specially since I can have the foam CNC cut), I
will end up with a very stiff skin that is pretty fair. The only real
filling will be over the spars where there will be a slight depression a
uth Africa
-Original Message-
From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Ronald Wright
Sent: 17 February, 2014 9:45 PM
To: KRnet
Subject: Re: KR> New wing skin idea - Fuel tanks
Don't you have a concern about cold weather and the vinyl?cracking?? I would
think a
"I tested the PVC water pipes and found that the fuel would weep through
the sealed pipe until it was all gone in about three months.
I am also testing Vinyl fence posts. I brought the test items to the
Gatherings at MVN several times"
The proof is in the testing but it really begs the question o
I tested the PVC water pipes and found that the fuel would weep through the
sealed pipe until it was all gone in about three months.
I am also testing Vinyl fence posts. I brought the test items to the
Gatherings at MVN several times. Larry always had me keep the gasoline
outside the terminal
Don't you have a concern about cold weather and the vinyl?cracking?? I would
think a thin wall aluminum tube would be a much better choice..
From: smwood
To: krnet at list.krnet.org
Sent: Monday, February 17, 2014 1:08 PM
Subject: Re: KR> New wing s
)
-Original Message-
From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Larry&Sallie
Flesner
Sent: Sunday, February 16, 2014 5:51 PM
To: KRnet
Subject: KR> New wing skin idea - Fuel tanks
At 02:15 PM 2/16/2014, you wrote:
>How fuel resistant is PVC, ABS? Drain pipe ABS
At 02:15 PM 2/16/2014, you wrote:
>How fuel resistant is PVC, ABS? Drain pipe ABS is really strong and
>fairly light. Peter
+
Bill Clapp used PVC pipe for fuel tanks and found the fuel would
slowly "weep" through the
pipe. http://
Nope. http://www.gilsoneng.com/reference/ChemRes.pdf peter
One idea that occurred to me, was that a sufficiently large-diameter PVC
pipe,
How fuel resistant is PVC, ABS? Drain pipe ABS is really strong and fairly
light. Peter
One idea that occurred to me, was that a sufficiently large-diameter PVC
pipe,
After looking in the archive, I didn't find results for wood wings. Has
there been discussion about wood wings similar to that of GP4 or Tailwind?
Has anyone done this?
Gary
Soli Deo Gloria
One idea that occurred to me, was that a sufficiently large-diameter PVC
pipe, properly sealed & run through the space between the leading edge
and the front spar would make an ideal fuel tank... However, since I got
my KR project with the wings prebuilt and a large header tank in place,
I'm go
Mark, as far as the tanks are concerned, I was thinking of making up a full
span (inboard to outboard) welded "D" box tank and then making a welded wing
tank that is also full span inboard to outboard with a width forward to back
that will result in basically zero CG shift from full tanks to empty.
At 08:27 AM 2/15/2014, you wrote:
>How long is the fuel tank to get 12.5 gals.
>Joe
My tanks are the length of the
spar http://myplace.frontier.com/~flesner/22.jpg
less about 8 inches (baffles and end foam), 10 inches front to rear
and average abou
charter.net
Sent: Saturday, February 15, 2014 8:28 AM
To: KRnet
Subject: Re: KR> New wing skin idea
Larry
How long is the fuel tank to get 12.5 gals. I was calculating mine in the
same location and found 48 inches long and 10 inches wide would give me 12
gals.
Joe
On Fri, Feb 14, 2014 at 7:08
Larry do you have any internal baffle plates in your tanks?
I am also considering utilizing the now hollow D-box space for a tubular
tank that will also be full span. This will practically eliminate any CG
shift as fuel burns off.
Regards
Dene Collett
Avlec Projects cc
Builders of award winning ai
: 15 February, 2014 1:15 AM
To: krnet at list.krnet.org
Subject: Re: KR> New wing skin idea
Dene; Make sure that the airloads don't travel through the full-span box
structure of the tanks, rather than through the box structure of the spars
I hear you but I have not done my final calc
Larry
How long is the fuel tank to get 12.5 gals. I was calculating mine in
the same location and found 48 inches long and 10 inches wide would give
me 12 gals.
Joe
On Fri, Feb 14, 2014 at 7:08 PM, Larry&Sallie Flesner wrote:
> At 01:41 PM 2/14/2014, you wrote:
>> I might not make the
>> tanks
Dene Collett wrote:
> Larry do you have any internal baffle plates in your tanks?
> I am also considering utilizing the now hollow D-box space for a tubular
> tank that will also be full span. This will practically eliminate any CG
> shift as fuel burns off.
My tanks are between the spars and the
Hi Sid
I hear you but I have not done my final calcs yet, I might not make the
tanks the full span between the spars but I would like to keep them full
span for the stiffness it will give the wing being bonded to both the top
and bottom skins.
Regards
Dene Collett
Avlec Projects cc
Builders of awa
At 01:41 PM 2/14/2014, you wrote:
>I might not make the
>tanks the full span between the spars but I would like to keep them full
>span for the stiffness it will give the wing being bonded to both the top
>and bottom skins.
>Dene Collett
+
A
Dene; Make sure that the airloads don't travel through the full-span box
structure of the tanks, rather than through the box structure of the spars.
Probably would delaminate from the skins over time. Thermal loads also concern
me. Wood, aluminum, and fibreglass expand differentially with heati
] On Behalf Of Wayne Tokarz
Sent: 14 February, 2014 5:58 PM
To: 'KRnet'
Subject: Re: KR> New wing skin idea
I think you will be compromising the torsional rigidity of the wings with
three pieces and relying on a bonded joint, ( I could be wrong here
I built in wing tanks per the Diehl plans between the forward and aft spars,
and from the WAF out to the first wing rib. Turned out to be 10.8 gallons
per side. That 21.6 gallons would provide over 6 hours endurance plus
reserve. Way longer than I care to sit in my tiny cockpit for one flight
list.krnet.org] On Behalf Of Dene
Sent: February-14-14 9:14 AM
To: 'KRnet'
Subject: Re: KR> New wing skin idea
Hi Wayne
I appreciate your good advice and wisdom, however, I have experience with
polystyrene foam in a KR wing being dissolved in flight and it is not good
for the heart!
I pe
.
Just my humble two cents worth.
Wayne
-Original Message-
From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Dene
Sent: February-13-14 10:48 PM
To: 'KRnet'
Subject: KR> New wing skin idea
Hi guys
It is my plan to put full length wing tanks inside my wings between t
, 2014 8:40 AM
To: KRnet
Subject: Re: KR> New wing skin idea
Hi,
Sounds like a lot of work to get to the same end result as Diehl skins?
Regards,
Jamie
change options
Behalf Of Dene
Sent: February-13-14 10:48 PM
To: 'KRnet'
Subject: KR> New wing skin idea
Hi guys
It is my plan to put full length wing tanks inside my wings between the
spars but because it is common practice here to use polystyrene for a core
and we all know what happens to poly foam
Hi guys
It is my plan to put full length wing tanks inside my wings between the
spars but because it is common practice here to use polystyrene for a core
and we all know what happens to poly foam when it even smells fuel, I have
been trying to come up with a way to get rid of foam all together wit
Hi,
Sounds like a lot of work to get to the same end result as Diehl skins?
Regards,
Jamie
Sent from Samsung Mobile
Original message
From: Dene
List-Post: krnet@list.krnet.org
Date:14/02/2014 05:48 (GMT+00:00)
To: 'KRnet'
Subject: KR> New wing skin idea
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