[AR] Re: Re spacex falcon 9 landing

  • From: William Claybaugh <wclaybaugh2@xxxxxxxxx>
  • To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx>
  • Date: Wed, 23 Dec 2015 14:43:38 -0500

On Wednesday, December 23, 2015, <qbert@xxxxxxxxxxxxxxx> wrote:

A quote from Bezos


"The same technology is to be used in a larger Blue Origin rocket that is
to be launched to orbit from Cape Canaveral in Florida
<http://www.nytimes.com/2015/09/16/science/space/jeff-bezos-rocket-company-to-build-and-launch-in-florida.html>
.
Everything that we have learned here on New Shepard is completely
applicable to our orbital booster,”
Blue Origin officials have not spoken in detail about which markets they
are aiming for with the bigger
rocket, but Mr. Bezos has said his passion is to send people to space. The
company could also compete
for commercial and military satellite launches."

source NYT web page.

Robert


At 10:45 AM 12/23/2015, you wrote:

Falcon 9 was designed for reusability from the start. Now that landing has
been accomplished i have no doubt reflight will become routine.
Blue origin landing is interesting but its intent is to some day be a
rocket amusement ride.Â
Hop up to the edge of space. No orbit no working payload.
Falcon 9 is the 747 to orbit and back and is already trucking supplies to
iss and putting working satellites into orbit.
No comparison, imho.

Musk may be over optimistic on the timeline but spacex's achievements to
date are quite incomparable. Its amusing to see the doubters continue to
doubt that they will acomplish the "next" step as each is accomplished.
Musk does not build battery gigafactories, rocket assembly lines or
boosters that land just for fun or stunt or ego.



Jim:

Take care; there is a difference between doubt and professional caution:
I'm inclined to the view that competent engineers, given good specs, will
at least meet their goals. Thus it seems likely that Falcon 9 will be
easier to refurbish than previous examples of reusable hardware. But in
addition to being designed for reuse it was also designed for very low cost
as an expendable. It is worth considering whether the total cost of reuse
is going to be lower than the intentional--and demonstrated--low cost of
expending. That is not doubt, that is a subject matter expert thinking
carefully about the the details.

Just sayin'

Bill



jim fackert


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