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CJohnston(at)popsound.com
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 Posted: Mon Jun 05, 2006 4:27 pm Post subject: how long til you know your fuel tanks are good? |
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Hey all -
Here's a dumb question... after finishing up the fuel tanks (and most
of the rest of everything on the wings) I moved on to the fuselage. It
was under the pretext of waiting for proseal to dry. I think the real
deal is that I was putting off testing the tanks because I was
nervous... Anyway, I put the balloon on there, filled it with air, and
guess what? The balloon is still inflated in the morning!! Yay.
Now the question -
How long do I wait til I call it good and test the other one?
cj
#40410
testing tanks/fuse
www.perfectlygoodairplane.net
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evmeg(at)snowcrest.net
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| Posted: Mon Jun 05, 2006 6:28 pm Post subject: how long til you know your fuel tanks are good? |
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More important than the balloon staying up is the soapy water
test..(balloons will leak on their own) ...put diluted dish soap on every
rivet and every seam while it is under pressure...if it is leaking you will
see. I use two balloons, one inside the other to get a higher pressure.
Cheers..
Evan Johnson
www.evansaviationproducts.com
(530)247-0375
(530)351-1776 cell
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Rick S.
Joined: 12 Feb 2006
Posts: 347
Location: Las Vegas
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| Posted: Mon Jun 05, 2006 6:44 pm Post subject: how long til you know your fuel tanks are good? |
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If you want real excitment use a manogram, it's so sensitive it will rise and fall with the daily temperture flucuations. In Las Vegas I had a rise and fall of 4" between the high and low of the day in the summer.
Rick S.
40185
do not archive
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_________________
Rick S.
RV-10
40185 |
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jesse(at)itecusa.org
Guest
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| Posted: Tue Jun 06, 2006 2:59 am Post subject: how long til you know your fuel tanks are good? |
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That's the $64,000 question. I think the Van's test kit says something
like a couple of hours. If you truly have no leaks, then the balloon will
stay inflated for days, with variations in the size of the inflation based
on changes in air temp, but it will stay inflated. It really is a good
feeling looking over the next morning, and the next morning, seeing that
balloon still inflated.
do not archive.
Jesse Saint
| Quote: |
Hey all -
Here's a dumb question... after finishing up the fuel tanks (and most
of the rest of everything on the wings) I moved on to the fuselage. It
was under the pretext of waiting for proseal to dry. I think the real
deal is that I was putting off testing the tanks because I was
nervous... Anyway, I put the balloon on there, filled it with air, and
guess what? The balloon is still inflated in the morning!! Yay.
Now the question -
How long do I wait til I call it good and test the other one?
cj
#40410
testing tanks/fuse
www.perfectlygoodairplane.net
|
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org
www.itecusa.org
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Tim(at)MyRV10.com
Guest
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| Posted: Tue Jun 06, 2006 5:12 am Post subject: how long til you know your fuel tanks are good? |
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I posted long ago on this. The short answer is wait at least
a week. Sure, maybe the fast proseal will be fine before then.
I made the mistake of testing mine after 24 hours or maybe
it was 48. When I pressure tested it, I blew the proseal
right out of a couple of those relief slots. Had to re-inject
proseal in those areas and pray. It isn't that big of a deal
to wait a week. You'll still feel good then.
Tim Olson - RV-10 N104CD - Flying
do not archive
Jesse Saint wrote:
| Quote: |
That's the $64,000 question. I think the Van's test kit says something
like a couple of hours. If you truly have no leaks, then the balloon will
stay inflated for days, with variations in the size of the inflation based
on changes in air temp, but it will stay inflated. It really is a good
feeling looking over the next morning, and the next morning, seeing that
balloon still inflated.
do not archive.
Jesse Saint
>
> Hey all -
>
> Here's a dumb question... after finishing up the fuel tanks (and most
> of the rest of everything on the wings) I moved on to the fuselage. It
> was under the pretext of waiting for proseal to dry. I think the real
> deal is that I was putting off testing the tanks because I was
> nervous... Anyway, I put the balloon on there, filled it with air, and
> guess what? The balloon is still inflated in the morning!! Yay.
> Now the question -
>
> How long do I wait til I call it good and test the other one?
>
> cj
> #40410
> testing tanks/fuse
> www.perfectlygoodairplane.net
>
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org
www.itecusa.org
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Rick S.
Joined: 12 Feb 2006
Posts: 347
Location: Las Vegas
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| Posted: Tue Jun 06, 2006 5:23 am Post subject: how long til you know your fuel tanks are good? |
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Make that a Manometer...jeez, wonder where my mind was.
Rick S.
40185
Fuse/Finish
do not archive
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_________________
Rick S.
RV-10
40185 |
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jesse(at)itecusa.org
Guest
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| Posted: Tue Jun 06, 2006 5:47 am Post subject: how long til you know your fuel tanks are good? |
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Of course, I meant to leave the balloon on that long, not to do it that soon
after finishing it. The longer you let it wait before testing the more
cured it will be. We always wait at least a day before testing.
Do not archive.
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org
www.itecusa.org
W: 352-465-4545
C: 352-427-0285
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