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Old Jun 10, 2008, 08:11 PM
Knowledge increases life's FOV
Sled Driver's Avatar
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Data
Screw tungsten... I want iridium ballast!

For those considering some of "out of the box" ballast system alternatives for your next design, like a snow ballast system, you might find this information interesting...





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Old Jun 10, 2008, 08:25 PM
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New or used stuff....I think it may have an effect on the availabilty.
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Old Jun 10, 2008, 08:31 PM
PNF
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Old Jun 10, 2008, 08:35 PM
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Where are car keys? I dont see where car keys stack up as ballast.
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Old Jun 10, 2008, 09:06 PM
Detail Freak
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No mention of the common "Rock", utilized frequently by the foamie industy flyers?

T
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Old Jun 10, 2008, 09:21 PM
Knowledge increases life's FOV
Sled Driver's Avatar
Third Stone from the Sun
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Iridium is only $15 per gram, which beats the crap out of weapons grade plutonium at $4,000 per gram, gold at $28 per gram, or platinum at $64 per gram... but, it is a wee bit more than $2.50 per gram tungsten or lead at $0.002 per gram.

Quote:
Originally Posted by target
No mention of the common "Rock", utilized frequently by the foamie industy flyers?

T
I believe "Rock" is covered by "Dry sand and gravel"...
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Old Jun 10, 2008, 09:34 PM
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How about loaded cartridges? I have loose rounds all over the place (doesn't everyone?) and they are great for CG adjustment or ballast if you can keep them from rolling around in your fuse/wing. I prefer .50 BMG rounds; they are the perfect shape for ballast and 4 rounds is almost exactly 1 lb. Fairly inexpensive too; they can be had for as low as a buck fifty a round if you buy them by the can. You just don't want to load them in a ballast tube nose to base.

Doubletap
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Old Jun 10, 2008, 09:55 PM
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Machine gun ballast tube? I like it!!!
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Old Jun 10, 2008, 09:56 PM
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I bet there is lots of depleted uranium floating around Iraq, probably pay kids pennies on the dollar to retrieve it.
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Old Jun 10, 2008, 09:57 PM
David Cairns
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Interesting, snow is the same as balsa, hmmm.... bio-degradable winter sloper?
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Old Jun 10, 2008, 10:48 PM
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The one thing I like about tungsten is my skin doesn't fall off, and there's not all the caughing up of the blood.

Not that there's anything wrong with that kind of stuff it's just not for me.

Ploof
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Old Jun 10, 2008, 10:59 PM
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Actually, to me the most surprising thing on that chart is that
mud and wet sand are as heavy or heavier than lead.
Little water and dirt and something to mix it in, and you
could fill your ballast tube with mud, almost anywhere.

ian
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Old Jun 10, 2008, 11:14 PM
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In Australia, we would choose Osmium.
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Old Jun 10, 2008, 11:19 PM
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Quote:
Originally Posted by Daemon
Actually, to me the most surprising thing on that chart is that
mud and wet sand are as heavy or heavier than lead.
Little water and dirt and something to mix it in, and you
could fill your ballast tube with mud, almost anywhere.

ian
No no, look again, the colums are confusing, mud has only 17% the density of lead.

Dieter Mahlein, ShredAir
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Old Jun 10, 2008, 11:31 PM
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Quote:
Originally Posted by ShredAir
No no, look again, the colums are confusing, mud has only 17% the density of lead.

Dieter Mahlein, ShredAir
I can't seem to find goop on this list...
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