Re: Super-heavy lift reusable launcher

Ian Parker <ianparker2@xxxxxxxxx> wrote:

:On 10 Aug, 12:36, Fred J. McCall <fmcc...@xxxxxxxxxxxxx> wrote:
:> Ian Parker <ianpark...@xxxxxxxxx> wrote:
:>
:> :On 10 Aug, 11:50, Fred J. McCall <fmcc...@xxxxxxxxxxxxx> wrote:
:> :> Ian Parker <ianpark...@xxxxxxxxx> wrote:
:> :>
:> :> :On 9 Aug, 23:35, Fred J. McCall <fmcc...@xxxxxxxxxxxxx> wrote:
:> :> :> Ian Parker <ianpark...@xxxxxxxxx> wrote:
:> :> :>
:> :> :> :
:> :> :> :You are assuming that heavy lift is need for SSP. In fact what you
:> :> :> :require is the phase locking of small (a few Kw) units.
:> :> :> :
:> :> :>
:> :> :> That may be what YOU require, but is anyone proposing building one
:> :> :> that way?
:> :> :>
:> :> :> Why do I doubt it?
:> :> :>
:> :> :
:> :> :Its the onlt logical way to do it. Having large parabolic mirrors at
:> :> :GEO is totally impractical.
:> :> :
:> :>
:> :> Oh, is it?  Why is that?
:> :>
:> :> While you're at it, why do you need "large parabolic mirrors at GEO"
:> :> for SSP?
:> :>
:> :> --
:> :> "Some people get lost in thought because it's such unfamiliar
:> :>  territory."
:> :>                                       --G. Behn
:> :
:> :There are 2 basic approaches to beaming energy. One is to have a large
:> :fixed mirror. The other is a phase locked array. I am discussing phase
:> :conjugation and it is very interesting. Instinct tells me that a large
:> :fixed mirror cannot be the way forward.
:> :
:>
:> True, but that is primarily because using visible light for beaming
:> power is not "the way forward".  How do you propose to solve the minor
:> problem with that stuff called 'cloud cover'?
:>
:> All this was worked out long ago.  There's no reason to change it now.
:>
:
:Clould cover is a sighting problem.
:

No. If you're using visible light frequencies, cloud cover is a
TRANSMISSION problem.

:
:It all depends where you are
:beaming to. If you want to electrolyse water you simply site yourself
:where there is little clould cover.
:

Which is rather like saying that if you want to electrolyze water you
simply site yourself where there is little or no water.

:
:If again you want to power
:aircraft at 10,000m there is little clould.
:

You're not going to do that from orbit.

:
:William Mook is championing light. I am not convinced of the
:advantages over microwaves myself although we should, I think, have an
:open mind.
:

In general, if William Mook is championing something, it is probably a
good thing to stay away from. Mr Mook has a years-long reputation for
wanting undoable things done.

:
:The same arument about phase coherence occurs with
:microwaves too.
:

Solutions are already known. Use big transmitters and big rectennae
for receivers.

--
"The reasonable man adapts himself to the world; the unreasonable
man persists in trying to adapt the world to himself. Therefore,
all progress depends on the unreasonable man."
--George Bernard Shaw
.

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