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Inflated balls on aircraft

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Drew_Ministry

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Jul 29, 2008, 5:28:39 AM7/29/08
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Hey, a pre EJC thread,
Anyone know if it's ok to take an inflated rhythmic gymnastics ball on an
aircraft? or will I need to let the air out and take a bike pump with me.

Thanks
Drew
www.ministryofmanipulation.com

--
----== posted via www.jugglingdb.com ==----

Matthew Tiffany

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Jul 29, 2008, 5:35:36 AM7/29/08
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Drew_Ministry wrote:
>
> Hey, a pre EJC thread,
> Anyone know if it's ok to take an inflated rhythmic gymnastics ball on an
> aircraft? or will I need to let the air out and take a bike pump with me.
>
> Thanks
> Drew
> www.ministryofmanipulation.com
>

similar but not exactly the same, when kristian wanvik caame to bjc a few
years ago his russians imploded having being packed in his luggage in the
hold, probably deflate?
tiff
xx

Little Paul

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Jul 29, 2008, 5:41:05 AM7/29/08
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On 2008-07-29, Drew_Ministry <Dr...@ministryofmanipulation.com.nospam.com> wrote:
> Hey, a pre EJC thread,
> Anyone know if it's ok to take an inflated rhythmic gymnastics ball on an
> aircraft? or will I need to let the air out and take a bike pump with me.

I don't know what the "rules for carrying things on aircraft" say, but it's
probably kinder on the ball if you at least partially deflate it before
putting it in your hold luggage - and it'll take up less space :-)

When transporting my spinning balls (approx 8" RG ball) I tend to deflate
them completely because they take up less room that way and I can get more
in the case. I was initially worried that they would deform and nolonger
be "round" when I re-inflate them, and initially this is indeed the case.

However, I now pump them up good and hard when they come out of the case
and leave them overnight before deflating them back to their usual pressure
before use and that seems to keep the kinks at bay.

-Paul
--
paulseward.com - a photo a day for 2008
100jugglers.org - 100 pieces of signed juggling promotional material

Guy G

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Jul 29, 2008, 7:03:11 AM7/29/08
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If they imploded, I would think it was because of a drop in temperature
rather than anything pressure related. That or the baggage handlers...

I'd deflate them anyway. Like LP says, you'll have more space. Plus of
course, I'd be pretty certain that there's no weird anal aeroplane law
that says "any inflatable balls must remain fully inflated throughout the
flight". The opposite may not be true however.

Guy

David Cain

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Jul 29, 2008, 9:09:11 AM7/29/08
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On Jul 29, 5:41 am, Little Paul <use...@lpbk.net> wrote:

I've flown with my spinning balls at least a hundred times and have
had no problems.

David Cain

Drew_Ministry

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Jul 29, 2008, 9:13:03 AM7/29/08
to
Drew_Ministry wrote:
>
> Hey, a pre EJC thread,
> Anyone know if it's ok to take an inflated rhythmic gymnastics ball on an
> aircraft? or will I need to let the air out and take a bike pump with me.
>
> Thanks
> Drew
> www.ministryofmanipulation.com
>
Thanks for all the advice -very helpful.
I'll go shopping for a ball pump valve adapter widget thing.

Draitube

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Jul 29, 2008, 10:39:44 AM7/29/08
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Surely the balls would explode due to pressure.

Because if the balls remain at normal pressure inside, and the pressure
drops due to the lower density of air, the inside pressure would be
higher, making it explode, not implode.

If it is a matter of implosion, it'd probably be temperature.

Jason

Guy G

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Jul 29, 2008, 11:23:53 AM7/29/08
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Indeed. I'd state temperature as the number one suspect, and baggage
handlers as the number two.

Your point about balls exploding is perfectly valid apart from the fact
that the pressure in an aeroplane doesn't drop low enough for them to
explode. I couldn't find a very reliable answer, but it appears that
cabins are pressurised to about 2/3 of sea level atmospheric pressure.

Guy

^Tom_

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Jul 29, 2008, 1:46:18 PM7/29/08
to
Drew_Ministry wrote:
>
> Hey, a pre EJC thread,
> Anyone know if it's ok to take an inflated rhythmic gymnastics ball on an
> aircraft? or will I need to let the air out and take a bike pump with me.
>
> Thanks
> Drew
> www.ministryofmanipulation.com
>

after reading the ryanair packing guides the other day, they recommend
deflation of bike tyres, but they ask for deflation of balls:

"Ryanair will accept footballs, rugby balls and other inflatable items for
carriage, provided they are partially or fully deflated prior to travel."

lutkus

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Jul 29, 2008, 4:21:38 PM7/29/08
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This thread reminds me, I'm going to have to poke some holes in my
russians.

I live in Denver, at 1 mile above sea level. The air pressure here is
lower than in Karlsruhe, so when I unpack my things, it will appear as
though my russians have deflated.

I guess that's another argument for bringing a pump -- if the air pressure
where you live is significantly different than where you're going, then
your props might not feel to be inflated to the ideal amount when you
arrive.

Draitube

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Jul 30, 2008, 1:39:07 AM7/30/08
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Right.

But is the whole plane pressurized the same because that ball is in the
luggage and there isn't as much of a responsiblity to keep the pressure
the same there, due to no people (I hope) being there.

Jason

fakoriginal

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Jul 30, 2008, 2:50:33 AM7/30/08
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Yes there is as they transport animals in the hold.

fak

Guy G

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Jul 30, 2008, 3:51:56 AM7/30/08
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fakoriginal wrote:
> > > Indeed. I'd state temperature as the number one suspect, and baggage
> > > handlers as the number two.
> > >
> > > Your point about balls exploding is perfectly valid apart from the fact
> > > that the pressure in an aeroplane doesn't drop low enough for them to
> > > explode. I couldn't find a very reliable answer, but it appears that
> > > cabins are pressurised to about 2/3 of sea level atmospheric pressure.
> > >
> > > Guy
> > >
> >
> >
> > Right.
> >
> > But is the whole plane pressurized the same because that ball is in the
> > luggage and there isn't as much of a responsiblity to keep the pressure
> > the same there, due to no people (I hope) being there.
> >
> > Jason
> >
>
> Yes there is as they transport animals in the hold.
>
> fak

Indeed. Plus of course there's the structural issues. Given these
options:
a) Build a cylindrical fuselage, a shape which is fairly robust, and make
it airtight and strong enough to be pressurised.
b) Build a cylindrical fuselage, lop off the bottom, make that less robust
shape airtight, and then add a non-airtight bit on the bottom to make the
overall shape a cylinder

a) has the advantages of being safer, easier to build (hence cheaper),
easier to maintain, and the ability to store animals in the hold.
b) has the advantages of making it ever so slightly less effort to
pressurise, and that if someone filled the cargo hold with poisonous
snakes (in an attempt to kill a key witness in a gang murder, for example)
they'd all die.

Guy

popstar_dave

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Jul 31, 2008, 2:49:25 AM7/31/08
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Little Paul wrote:
> I leave them overnight before deflating them back to their usual pressure

> before use and that seems to keep the kinks at bay.

Nice. How does that work against other pop/rock groups from the 60s?

Dave

Little Paul

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Jul 31, 2008, 7:12:48 AM7/31/08
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On 2008-07-31, popstar_dave <dche...@gmail.com.nospam.com> wrote:
> Little Paul wrote:
>> I leave them overnight before deflating them back to their usual pressure
>> before use and that seems to keep the kinks at bay.
>
> Nice. How does that work against other pop/rock groups from the 60s?

I've been remarkably free of popular beat combos ever since I started
doing it. And I've not heard a peep out of Pete Townsend for a while
now. Good job too. He was weirding me out on MSN.

charliejuggler

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Jul 31, 2008, 7:21:14 AM7/31/08
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Little Paul wrote:
> On 2008-07-31, popstar_dave <dche...@gmail.com.nospam.com> wrote:
>> Little Paul wrote:
>>> I leave them overnight before deflating them back to their usual pressure
>>> before use and that seems to keep the kinks at bay.
>> Nice. How does that work against other pop/rock groups from the 60s?
>
> I've been remarkably free of popular beat combos ever since I started
> doing it. And I've not heard a peep out of Pete Townsend for a while
> now. Good job too. He was weirding me out on MSN.
>
> -Paul

That's only 'cos of your handle.

C

Jay Linn

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Aug 1, 2008, 12:15:51 PM8/1/08
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On Wed, 30 Jul 2008 06:39:07 +0100, Draitube
<dem...@hotmail.co.uk.nospam.com> wrote:

<snip>

> But is the whole plane pressurized the same because that ball is in the
> luggage and there isn't as much of a responsiblity to keep the pressure
> the same there, due to no people (I hope) being there.

Of course it's the same.

The fuselage of an aircraft is a single large pressure vessel, and if
there were different pressures between the hold and the cabin, then
aircraft would need to be equipped with a stupidly strong, and therefore
heavy, deck to contain the greater cabin pressure. Instead, just as in
pressurised plastic pop (soda) bottles, aircraft use a near-circular
profile to distribute the pressure differential evenly.

--
Jay Linn

Has refluffed his .sig ... for now.

catiecat

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Aug 1, 2008, 1:37:15 PM8/1/08
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I poke very small holes in my russians to avoid this effect. I usually use
a small sewing needle which is usually smaller than a grain of sand. The
one that I can't really control is stage balls. When I live in Denver,
they're over inflated, bouncy and kind of difficult to juggle...

Cate-who frequently moves between Quebec and Denver.

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