Boeing 747 Laser

Neil Gerace wrote:


http://groups.google.com/group/sci.s...79888c8?hl=en&

The Rising Sun can reach the dark shores of Neptune.



Tojo never made it to Darwin, but Cyclone Tracy flattened it.


We all might want to consider that several months ago North Korea was
ready for a "subsurface nuclear test".
Remember? The one they built the reviewing stand for; dug the hole for,
and which, oddly, never happened.
Someone's yanking someone's else's chain?

Pat

Scott Hedrick wrote:


Anybody know the spinoff benefits of the phase-conjugate tracking mirror?



Something involving making popcorn at a distance? :-D

Pat

"Pat Flannery" wrote in message
...

The question then becomes how much does the M-5 cost versus a liquid
design?

A few years ago the costs were around 7 billion yen for the M-V (about $60
million), compared to about 9-10 billion yen (~$80 million) for the smallest
versions of the H-IIA. These are probably something like marginal costs,
probably don't include some of the fixed overhead, and certainly don't
include development costs.

If it's cheaper, why not use solids for the commercial launcher also?

Because the H-IIA delivers about five times more payload for only a little
bit more money. (And as Henry has pointed out, it does use solid boosters).
For this reason, the future of the M-V is rather uncertain now that ISAS and
NASDA have been combined into JAXA.


Josh Hopkins

Josh Hopkins wrote:

Because the H-IIA delivers about five times more payload for only a little
bit more money. (And as Henry has pointed out, it does use solid boosters).
For this reason, the future of the M-V is rather uncertain now that ISAS and
NASDA have been combined into JAXA.


This http://www.galaxy-express.co.jp/english/index-e.html may be in
the mix somewhere too. Done right, an Atlas-III (balloon tank + RD-180)
first stage and a cheap (pressure fed LNG+LOX) upper stage should be a
quite economical launcher, both to develop and to produce.

I'm not sure how serious a proposition Galaxy Express is, but it might
be in a good position to take over from M-V.

"Pat Flannery" wrote in message
...


Scott Hedrick wrote:


Anybody know the spinoff benefits of the phase-conjugate tracking mirror?

Something involving making popcorn at a distance? :-D

"The Crossbow Project- shooting ourselves in the ass is easier than ever!"

I wonder if Jiffy Pop was included in the onboard nutritional supplements?

Seriously, other than a test project, I don't see much coming from this. At
best, it would help with the occasional lob from NKorea. It's just so much
easier to deliver a single bomb in person that this won't help in the fight
against terrorism.

*Ground installations* around select targets is a different matter. They can
protect against all sorts of things, including aircraft, and are far less
fragile. Also, less adaptable. But far cheaper.

I hope the project continues, for the experimental value. But it won't
evolve into an operational system.

Scott Hedrick wrote:

"The Crossbow Project- shooting ourselves in the ass is easier than ever!"

I wonder if Jiffy Pop was included in the onboard nutritional supplements?



Back in the good old days of copper heat-sink heatshields someone
proposed this:
Put popcorn and oil between the heatshield and the capsule proper with
an accordion joint connecting the two.
On reentry, the popcorn pops and forms a mass above the heatshield as
the accordion joint expands.
On landing, the popcorn forms a crushable cushion to reduce impact
forces on the crew.
If the landing is in a desolate area, the crew now has a food supply also.

Pat

On Mon, 26 Jun 2006 15:28:34 -0500, Pat Flannery
wrote:



Scott Hedrick wrote:

"The Crossbow Project- shooting ourselves in the ass is easier than ever!"

I wonder if Jiffy Pop was included in the onboard nutritional supplements?



Back in the good old days of copper heat-sink heatshields someone
proposed this:
Put popcorn and oil between the heatshield and the capsule proper with
an accordion joint connecting the two.
On reentry, the popcorn pops and forms a mass above the heatshield as
the accordion joint expands.
On landing, the popcorn forms a crushable cushion to reduce impact
forces on the crew.
If the landing is in a desolate area, the crew now has a food supply also.

Pat


They could have even painted the Jiffy Pop logo next to Rockwell
Grumman and whoever else.