WHY spend MILLION$$$ to build "SPACEPORTS" ???

On Jan 6, 9:33 am, gaetanomarano wrote:

1. the "van" is a only a metaphor to say "so small every place is
good
for it" ...also the smallest airport is several sq. miles large, so,
every airport of the world can host the van-like small
"infrastructure" to refuel the EADS plane's LOX tank (assuming it
needs a refuel, while I think it will come prefilled from the planes'
headquarter)

2. you may like it or not, but THAT is those will happen since it's
the
most obvious and RATIONAL choice

3. so, all "spaceports", after a few years of success, will soon
become a
desert, since the suborbital flights will start from hundreds
different places

Clueless again

1. Your "I think" doesn't mean squat and doesn't carry any weight.
It isn't going to come "prefilled" It would boil off and not every
airport is going to allow a LOX filled plane land at it.

2. Anything you say is NOT most obvious and RATIONAL, since you are
clueless and have no knowledge of space operations

3. Filling the planes is not the only reason for spaceports. There
are safety reasons since the plane is carrying large quantities of
LOX. Also departure and arrival corridors are needed. Just because
the plane has jet engines does it mean it can fly anywhere. It is
still has limited fuel

.

On 6 Gen, 19:53, wrote:

1. *Your "I think" doesn't mean squat and doesn't carry any weight.
It isn't going to come "prefilled" *It would boil off and not every
airport is going to allow a LOX filled plane land at it.

2. *Anything you say is NOT most obvious and RATIONAL, since you are
clueless and have no knowledge of space operations

3. *Filling the planes is not the only reason for spaceports. *There
are safety reasons since the plane is carrying large quantities of
LOX. *Also departure and arrival corridors are needed. *Just because
the plane has jet engines does it mean it can fly anywhere. *It is
still has limited fuel


since it seems your only job is follow me from forum to forum to say
that I'm wrong, it's useless to reply to you, but, since you're not
the only here, my reply is:

1. the LOX in a cryogenic tank doesn't boil off so quickly

2. the most rational choice always WINS in the real world... and my
proposal IS the most rational choice

3. the suborbital planes fly in the same corridor of airlines only in
the first 10% of its flight, then, they go where there are not
airplanes nor "corridors" ... there are not safety reasons that can't
allow the EADS plane to fly from common airports, since, within 30,000
ft. they are common jets that needs the SAME safety systems of
airlines' jets, while, above 30,000 ft. no safety system can help them
if something goes wrong

.

In sci.space.policy message c934f094-2324-483e-b3d2-85c33ba0128b@d70g20
00hsb.googlegroups.com, Sun, 6 Jan 2008 06:33:49, gaetanomarano
posted:
On 5 Gen, 23:11, wrote:

The airport still has to be sited for the LOX and the plane. *Also
moving the van is not efficient, since the plane is going all over the
place


the EADS plane will be a very common executive jet able to fly
suborbital, then, it can fly from airport to airport with the only
need of kerosene refuel

If you actually knew anything relevant, you would know that kerosene
consists of paraffins with structure H-(CH2)n-H and similar branches
structures, with n being around 12-15. So in essence it's (CH2)n.

Combustion is (CH2)2 + 3O2 - 2CO2 + 2H2O
Masses, AMU : 28 96

LOX is about a third denser than kerosene.

Therefore, a rocket craft using LOX and kerosene will need a LOX tank
about 2.5 times bigger than the kerosene tank. Both tanks will need to
be refillable at almost every stop.


However, any location that can be supplied with and store refined
kerosene in quantity will also be able to be supplied with and store LOX
in quantity; cryogenic storage is understood, and not unduly costly.

--
(c) John Stockton, Surrey, UK. /
Web URL:http://www.merlyn.demon.co.uk/ - FAQish topics, acronyms, & links.
Correct = 4-line sig. separator as above, a line precisely "-- " (SoRFC1036)
Do not Mail News to me. Before a reply, quote with "" or " " (SoRFC1036)

On 6 Gen, 23:11, Dr J R Stockton wrote:

Therefore, a rocket craft using LOX and kerosene will need a LOX tank
about 2.5 times bigger than the kerosene tank. *Both tanks will need to
be refillable at almost every stop.

However, any location that can be supplied with and store refined
kerosene in quantity will also be able to be supplied with and store LOX
in quantity; cryogenic storage is understood, and not unduly costly.



the LOX tank can be small since the EADS plane will use the LOX only
in the suborbital burn from 15 km. to 100 km. and for about 5 minutes

when it fly from the headquarter to the airports, in first 15 km. of
each suborbital flight and at reentry and landing it will use only
kersosene and air for its jet engines, then, it can be refueled in
every small airport without any special infrastructure

.

On Jan 6, 4:50 pm, gaetanomarano wrote:


2. the most rational choice always WINS in the real world... and my
proposal IS the most rational choice


Nothing you post is rational nor is it applicable in the real world.