You could alternatively pressurize the tank with nitrogen and then use a
refrigerant sniffer to go over all the seams. It will find the smallest of
leaks quickly and easily.
Sent from my Ipad
Randy Powell
Wachapreague Va 23480
On Jan 30, 2014, at 8:59 PM, Larry&Sallie Flesner
wrote:
>
>>
Dan Pritchard wrote:
> Why vinyl ester resin?
I did some research back when I built my first N56ML tanks, and found that
vinylester was specifically designed to be impervious to the"gasohol" of the
time, which was up to 20% ethanol. I've seen no evidence to the contrary
since then, although I
When using water to leak test a tank, add a few drops of liquid soap.
The soap will break the surface tension of the water and help it find
smaller holes. Another possibility is to use windshield washer fluid. it
already has the soap and the alcohol will further reduce surface tension.
Wayne
At 08:17 PM 1/30/2014, you wrote:
>Or you guys could just build it like mine. Built out of 1/4" foam
>and vinylester, start to finish in two days, no leaks of any
>kind. I might have $60 in it, and two days of my time, much of
>which was spent doing other things.
>Mark Langford
++
Or you guys could just build it like mine. Built out of 1/4" foam and
vinylester, start to finish in two days, no leaks of any kind. See photos
at http://www.n56ml.com/900hour/ . I might have $60 in it, and two days of
my time, much of which was spent doing other things. I finally learned to
With some of the recent discussion on flight characteristics, some
builders might get the idea that the KR is hard to fly. NOT TRUE. In
most of the flight envelope the KR handles much like any other
airplane you've flown, very conventional. It is in the very edges of
the envelope, slow and
>
>The reason gas leaks when water doesn't more likely has to do with
>the fact that
>water molecules tend to stick together due to intermolecular forces that
>are much stronger for water than they are for oxygen or nitrogen or carbon
>dioxide or fuel.
>TK
Thank you for being so brave and sharing this lesson with all of us.
Had you added a small portion of dish washing detergent to the water you
could have got away with just a PSI or two.
We used to use it in the airforce to detect oxy leaks and tradies use it to
detect gas leaks in home/caravan sy
Why vinyl ester resin?
Sent from my iPhone
> On Jan 30, 2014, at 6:17 PM, "Mark Langford" wrote:
>
> Or you guys could just build it like mine. Built out of 1/4" foam and
> vinylester, start to finish in two days, no leaks of any kind. See photos at
> http://www.n56ml.com/900hour/ . I migh
My welded aluminum wing tanks have identical dimensions, but one holds 8.3
gallons and the other holds 7.9. The machine shop that constructed the
tanks used 30 psi air to leak test and permanently bulged the top and bottom
(formerly) flat plates. Uneven bulges make the difference in capacities
At 10:16 AM 1/29/2014, you wrote:
>I used to own an Ercoupe, it is a GREAT airplane. // I did an
>extensive flight test with one
>in the mid 80s and was never able to fully stall of spin the plane.
>Wayne
+
That was by design. I
At 03:38 PM 1/30/2014, you wrote:
>It is now flying! This is a plans built KR-2 with a VW 2180.
Roger,
Great to hear you're back in the air again after your very
unfortunate arrival at the Mt.Vernon Gathering a few years ago.
For those not famili
My VW engine came Great Plains Aircraft and had the standard oil drain cover
plate. The Revmaster side oil drain was needed due to the addition of the
Revmaster oil cooler on the bottom of the engine. New oil cooler is also
one of the reasons for building a new cowl.
Sid Wood
Tri-gear KR-2 N6
At 03:16 PM 1/30/2014, you wrote:
>Anyone have a pair of p-leads for Bendix S4LN mags you are willing to part
>with?
>Gary
+++
Is there something special about the P-leads you're looking for? I'm
thinking that P-leads are simply a wire, run thr
>Gas molecules are smaller than water molecules. Water testing for leaks
>is inconclusive.
>Gary
++
So true. Gas will leak it a big way through a hole that holds
water. I use a funnel to filter fuel that passes gas at a high rate
but not a singl
Making a list of advantages vs disadvantages of flying high or low ondistance
flying, I can't think of a single thing to put on the "low"list,
The view is always better down low, so if you're not going anywhere in
particular, or are near a mountain Like volcanic Mt.Hood, or the pacific, wha
Probably looking for the lead with the spring on the end that goes inside the
mag.? I need one of those also for the same mag.
Ron
From: Larry&Sallie Flesner
To: KRnet
Sent: Thursday, January 30, 2014 6:05 PM
Subject: Re: KR> p-lead
At 03:16 PM 1/30/2014,
Not enough, but if you go to the Transport Canada
(http://wwwapps2.tc.gc.ca/Saf-Sec-Sur/2/ccarcs/aspscripts/en/current.asp )web
site and look it up you should see at least 18 KR2 and KR1 registered
Bill
Anyone have a pair of p-leads for Bendix S4LN mags you are willing to part
with?
Gary
It has been a while since I posted a update on the KR. It is now flying! This
is a plans built KR-2 with a VW 2180. Took its first flight in late October
2013. No surprises. I have the original Rand fixed gear that looks very close
to the Grove gear. Visibility over the nose on the ground in non
Looks like the link got broken to the regulator info. It's a DeVilbiss
PD1000.
There were at least two other makers of pulse-dose regulators at the time
I got mine so there's several choices. The PD1000 works extremely well
in my experience but I imagine the other ones are just as good.
Mik
Brian said,
"I think you have a lot of guts flying at the lower altitudes. When I am
over 10,000' I can almost always glide to an airport or choose between
several. At 3,500' you are looking for the best looking road and hoping
there are not power lines you can't see."
Amen. Even more importa
Gas molecules are smaller than water molecules. Water testing for leaks
is inconclusive. I like the below statement.
Gary
While waiting for the gauge to drop spray all the seems with soapy
water. if you don't find a leak but the gauge has dropped repeat the
process.
___
Sorry for the problem Pierre, but there has to be some humor in this sad
lesson my sympathy but your story is just hiilarous... jw
Joe. E. Wallace
jwallacep51 at gmail.com
On Jan 30, 2014, at 1:41, Pierre wrote:
> So here I am, finished my wing tanks and very proud of the welding w
On 2014-01-30 10:03 AM, ppaulvsk at aol.com wrote:
simple way is to have a pressure gauge on the fitting with a t joint
one line to the tank
the other to the air in and a shut off valve so you can remove the air
once the pressure reaches 2 lbs which you have a regulator on the air
line to not all
So here I am, finished my wing tanks and very proud of the welding work.
Somebody mentioned that I should pressure test the tank to ensure it is leak
free. I usually take good advice to heart, so I hooked up the compressor,
blocked off all the inlet, breather and other openings, prepared the little
You can also wrap a thread around the balloon and tired of off. after 24
hours if the thread is lose that mean you have lost air. This way is very very
accurate .
Paul Visk
Belleville Il
618-406-4705
Sent from my HTC on the Now Network from Sprint!
- Reply message -
From: "Bob L
Sent from my HTC on the Now Network from Sprint!
- Reply message -
From: "Bob Lee"
List-Post: krnet@list.krnet.org
Date: Thu, Jan 30, 2014 6:43 am
Subject: KR> Pressure testing my wing tanks
To: "'KRnet'"
Pierre said:
<< "...so I hooked up the compressor,blocked off all the inlet, bre
I have a new SkyRadar-L ADSB for sale. Make an offer within 80% of the NEW
price, and it is yours.
ADSB Weather communicates WIFI or USB to your moving map display. Also
works with an IPAD with Wing-X and probably other such devices. Does not
work with Foreflight as Foreflight is dedicated to
You need to be very careful testing a tank with air pressure. Aside
from ruining your tanks, it is not hard to blow one up with just a few
PSI. People that manufacture tanks test them with water, not air,
because water does not compress so if the tank starts to crack the
pressure is relieved inst
Pierre said:
<< "...so I hooked up the compressor,blocked off all the inlet, breather and
other openings, prepared the little water spray can and started the
compressor." >>
I was a little luckier than Pierre, when I built my header tank I got better
advise: Use a tee going into the tank. On one
Well, you have to remove the oil drain cover before you split the case, no
matter what. You will really like this remote drain. Any VW conversion can
use it, it does not have to be a Revmaster.
See N64KR at http://KRBuilder.org - Then click on the pics?
Peoples Choice at 2013 - KR Gathering in
Just FYI anyone who needs to test your fuel tank for leaks. Vans (RV) sells
a kit for doing this and it involves a balloon attached to a valve. You put
in just enough air to get the balloon to expand. Then if it does not
deflate, you are good to go. If it does, you don't need any more pressure
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