[ham] Re: [Rhodes22-list] Gas vs Liquid Battens

[ronald]

No reason not to use mylar sails.  But I think the benefits from 
hydrogen or
helium would be marginal (other than the Donald Duck voice).

Ron

On Wednesday, December 25, 2002, at 09:39 PM, Michael Meltzer wrote:

> way not use Mylar in the sail, the fancy tape jobs use it all the time. 
> And what is the big deal in the thunderstorm, hydrogen gas
> burning in open air is not a big deal, the fire ball should raise away 
> from the boat, the problem is only if the fabric burns with
> it, that solvable.
>
> MJM
>
>
> ----- Original Message -----
> From: "ronald" <lipton@fnal.gov>
> To: "The Rhodes 22 mail list" <rhodes22-list@rhodes22.org>
> Sent: Wednesday, December 25, 2002 10:14 PM
> Subject: Re: [ham] Re: [Rhodes22-list] Gas vs Liquid Battens
>
>
>> A problem with hydrogen and helium is that they are very small small
>> molecules which
>> will diffuse through most thin material. Of course mylar helium 
>> balloons
>> still will float
>> so there would be a net gain, but probably not worth the effort.  A
>> hydrogen-filled sail
>> could be a real disaster in a thunderstorm. The advantage of helium
>> is that you could breath in the excess sail gas and talk like Donald
>> Duck.
>>
>> Ron
>>
>> On Wednesday, December 25, 2002, at 08:42 PM, Michael Meltzer wrote:
>>
>>> hydrogen is highly reactive too, might corroded or change the 
>>> fabrics(I
>>> sure Rodger will get on me for this, remember the hinaburge
>>> :-) problem is pure helium is expensive and would have to way to
>>> recover it, on the other hand hydrogen is cheap and a by product of
>>> adicd reactions, could have a generator on board. Any system will be
>>> leaky so it will need to be topped up. Could even make the
>>> stuff with a solar panel(they doing it for fuelcells). Beside your get
>>> more lift from the hydrogen. The stuff is lighter then
>>> air(the whole point :-) to will not crowd the deck or cabin, just need
>>> a controled blowout, like gas in the lasserret :-)
>>>
>>> MJM
>>>
>>>
>>> ----- Original Message -----
>>> From: <R22RumRunner@aol.com>
>>> To: <rhodes22-list@rhodes22.org>
>>> Sent: Wednesday, December 25, 2002 8:22 PM
>>> Subject: Re: [ham] Re: [Rhodes22-list] Gas vs Liquid Battens
>>>
>>>
>>>> MJM,
>>>> If my high school science doesn't fail me, I believe hydrogen is 
>>>> highly
>>>> flammable. How about using something like a nonflammable helium?
>>>>
>>>> Rummy
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