Apollo Question

On Aug 30, 2:28*pm, Jeff Findley wrote:
In article 929065a9-0332-442c-b676-421861950df9
@c4g2000vbe.googlegroups.com, says...



On Aug 29, 9:33 am, Jeff Findley wrote:
The pressure hull of the LEM was aluminum so thin that it wouldn't
take
much to accidentally put a hole in it. Apollo astronauts were real men
who knew the risks, but flew anyway.

thinner than a pop can

I don't think that's quite true.

A quick web search says the skin of the LEM pressure vessel was, at its
thinnest, 12/1000 of an inch thick. *One source I found for aluminum
(pop) can wall thickness stated 5/1000 of an inch thick, which is less
than half the thickness of the LEM's skin.

Jeff
--
"the perennial claim that hypersonic airbreathing propulsion would
magically make space launch cheaper is nonsense -- LOX is much cheaper
than advanced airbreathing engines, and so are the tanks to put it in
and the extra thrust to carry it." - Henry Spencer

Pop cans during the apollo era were much heavier than today. They have
fond ways to lighten cans a lot. Alunimum is expensive......... it was
one to cut costs

In article 713bc27d-1b69-46b3-b5d7-bea60d759601
@h4g2000yqo.googlegroups.com, says...

On Aug 30, 2:28*pm, Jeff Findley wrote:
In article 929065a9-0332-442c-b676-421861950df9
@c4g2000vbe.googlegroups.com, says...



On Aug 29, 9:33 am, Jeff Findley wrote:
The pressure hull of the LEM was aluminum so thin that it wouldn't
take
much to accidentally put a hole in it. Apollo astronauts were real men
who knew the risks, but flew anyway.

thinner than a pop can

I don't think that's quite true.

A quick web search says the skin of the LEM pressure vessel was, at its
thinnest, 12/1000 of an inch thick. *One source I found for aluminum
(pop) can wall thickness stated 5/1000 of an inch thick, which is less
than half the thickness of the LEM's skin.

Pop cans during the apollo era were much heavier than today. They have
fond ways to lighten cans a lot. Alunimum is expensive......... it was
one to cut costs

You seem to be claiming that you were trying to cite a quote from the
60's. Unfortunately, you completely neglected to indicate where that
quote came from. This is very poor form because without the context,
your statement is completely wrong.

You said "thinner than a pop can", so one would assume you meant any old
pop can one would find on the grocery store shelf.

Jeff
--
"the perennial claim that hypersonic airbreathing propulsion would
magically make space launch cheaper is nonsense -- LOX is much cheaper
than advanced airbreathing engines, and so are the tanks to put it in
and the extra thrust to carry it." - Henry Spencer