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Alan Erskine
Posted: Tue Apr 08, 2008 2:10 am
Guest
http://en.wikipedia.org/wiki/Orion_2

Surely, they'll be more accurate (parachute guidance?) than even the Gemini
vehicles, which would allow a landing at Cape Canaveral. There are also
rumours that the land-landing system will be removed if the weight keeps
creeping up; if this is the case, then surely a waterborne landing near Cape
Canaveral is more practical.
maxson@mission51l.com
Posted: Tue Apr 08, 2008 4:27 am
Guest
On Apr 8, 8:36 am, "Jorge R. Frank" <jrfr...@ibm-pc.borg> wrote:
Quote:
Alan Erskine wrote:
http://en.wikipedia.org/wiki/Orion_2

Surely, they'll be more accurate (parachute guidance?) than even the Gemini
vehicles, which would allow a landing at Cape Canaveral.  There are also
rumours that the land-landing system will be removed if the weight keeps
creeping up; if this is the case, then surely a waterborne landing near Cape
Canaveral is more practical.

Don't forget the service module. Its debris footprint will be short of
the crew module landing zone, and NASA wants to keep that debris
footprint offshore. Hence, a west coast landing for the crew module, if
NASA sticks to land touchdown.

That suggests long-term reliance on DOD (Edwards and/or Vandenberg).
The constraint you mention apparently rules out White Sands. What is
the planned landing capability (if any) of the site Governor
Richardson is pushing?

(Obviously I favor maintaining a civilian future for humans in space,
to the maximum extent possible. Hopefully the military won't continue
to consume our GNP,)

JTM
Jeff Findley
Posted: Tue Apr 08, 2008 8:33 am
Guest
"Alan Erskine" <alan.erskine@bigpond.com> wrote in message
news:kTEKj.7181$n8.6667@news-server.bigpond.net.au...
Quote:
http://en.wikipedia.org/wiki/Orion_2

Surely, they'll be more accurate (parachute guidance?) than even the
Gemini
vehicles, which would allow a landing at Cape Canaveral. There are also
rumours that the land-landing system will be removed if the weight keeps
creeping up; if this is the case, then surely a waterborne landing near
Cape
Canaveral is more practical.

It will only land at Edwards if they keep "land landing" as the primary
landing mode. From some articles I've read, they may switch to splashdowns
as the primary landing mode (just as Apollo did) due to mass constraints
imposed by the Ares I launch vehicle.

Jeff
--
A clever person solves a problem.
A wise person avoids it. -- Einstein
Jorge R. Frank
Posted: Tue Apr 08, 2008 8:36 am
Guest
Alan Erskine wrote:
Quote:
http://en.wikipedia.org/wiki/Orion_2

Surely, they'll be more accurate (parachute guidance?) than even the Gemini
vehicles, which would allow a landing at Cape Canaveral. There are also
rumours that the land-landing system will be removed if the weight keeps
creeping up; if this is the case, then surely a waterborne landing near Cape
Canaveral is more practical.

Don't forget the service module. Its debris footprint will be short of
the crew module landing zone, and NASA wants to keep that debris
footprint offshore. Hence, a west coast landing for the crew module, if
NASA sticks to land touchdown.
Alan Erskine
Posted: Tue Apr 08, 2008 9:31 am
Guest
"Jorge R. Frank" <jrfrank@ibm-pc.borg> wrote in message
news:5oidnTmwxrF46WbanZ2dnUVZ_rninZ2d@giganews.com...
Quote:
Alan Erskine wrote:
http://en.wikipedia.org/wiki/Orion_2

Surely, they'll be more accurate (parachute guidance?) than even the
Gemini
vehicles, which would allow a landing at Cape Canaveral. There are also
rumours that the land-landing system will be removed if the weight keeps
creeping up; if this is the case, then surely a waterborne landing near
Cape
Canaveral is more practical.

Don't forget the service module. Its debris footprint will be short of
the crew module landing zone, and NASA wants to keep that debris
footprint offshore. Hence, a west coast landing for the crew module, if
NASA sticks to land touchdown.

See what you get when you you come from the 'shuttle era'? Thanks Jorge;
seems obvious when it's pointed out to me! <duh>

But, didn't Gemini land in the Atlantic? I seem to remember the G-8
emergency was nearer the Cape or was that simply because it was an
emergency?
Brian Gaff
Posted: Tue Apr 08, 2008 2:53 pm
Guest
There is a lot of water about, but not much land with nothing to hit on it I
think. Are they really able to land by parachute really accurately?

Brian

--
Brian Gaff - briang1@blueyonder.co.uk
Note:- In order to reduce spam, any email without 'Brian Gaff'
in the display name may be lost.
Blind user, so no pictures please!
"Jeff Findley" <jeff.findley@ugs.nojunk.com> wrote in message
news:11729$47fb73cf$927a2cda$5732@FUSE.NET...
Quote:

"Alan Erskine" <alan.erskine@bigpond.com> wrote in message
news:kTEKj.7181$n8.6667@news-server.bigpond.net.au...
http://en.wikipedia.org/wiki/Orion_2

Surely, they'll be more accurate (parachute guidance?) than even the
Gemini
vehicles, which would allow a landing at Cape Canaveral. There are also
rumours that the land-landing system will be removed if the weight keeps
creeping up; if this is the case, then surely a waterborne landing near
Cape
Canaveral is more practical.

It will only land at Edwards if they keep "land landing" as the primary
landing mode. From some articles I've read, they may switch to
splashdowns as the primary landing mode (just as Apollo did) due to mass
constraints imposed by the Ares I launch vehicle.

Jeff
--
A clever person solves a problem.
A wise person avoids it. -- Einstein

Who Needs Fenders?
Posted: Tue Apr 08, 2008 3:34 pm
Guest
Alan Erskine wrote:

Quote:
But, didn't Gemini land in the Atlantic? I seem to remember the G-8
emergency was nearer the Cape or was that simply because it was an
emergency?

Actually the reverse--all but G-8 were in the Atlantic. G-8 splashed
down near Japan--the only manned Gemini mission to land outside the
Atlantic.

As for why Orion would go West Coast instead--I suspect service module
on the Orion to be much more massive than the Gemini equipment module
and susceptible to having bits reach the ground...

Plus it gives you a bigger target into which you can drop stuff with
less chance of getting sued Smile
Guest
Posted: Tue Apr 08, 2008 5:21 pm
On Apr 8, 5:10�pm, "Alan Erskine" <alan.ersk...@bigpond.com> wrote:
Quote:
http://en.wikipedia.org/wiki/Orion_2

Surely, they'll be more accurate (parachute guidance?) than even the Gemini
vehicles,

Gee; that's really good
John Doe
Posted: Wed Apr 09, 2008 5:29 am
Guest
Since that CEV thing isn't reusable, does it really matter where it lands ?

Since it won't require complex 747 and cranes to lift the burned out
capsule onto some ship or cargo aircraft, it doesn't really need to land
as near to launch site as possible.

If they're only going to attempt to recycle a few components inside,
perhape the capsule can be emptied on site and the remains sent to a
local recycling firm nearest to where the capsule fell.

Or they could target any body of water near US warships. The warships
can recover the capsule, remove the recoverablke devices from the
capsule, and then stow the remains in some dark corner of the ship until
it next docks at a port with aluminium recycling facility.
Alan Erskine
Posted: Wed Apr 09, 2008 7:23 am
Guest
"John Doe" <jdoe@doe.org> wrote in message
news:47fc9aa2$0$4413$c3e8da3@news.astraweb.com...
Quote:
Since that CEV thing isn't reusable, does it really matter where it lands
?

Since it won't require complex 747 and cranes to lift the burned out
capsule onto some ship or cargo aircraft, it doesn't really need to land
as near to launch site as possible.

If they're only going to attempt to recycle a few components inside,
perhape the capsule can be emptied on site and the remains sent to a
local recycling firm nearest to where the capsule fell.

Or they could target any body of water near US warships. The warships
can recover the capsule, remove the recoverablke devices from the
capsule, and then stow the remains in some dark corner of the ship until
it next docks at a port with aluminium recycling facility.

I think the only non-reuseable component is the heat shield (base) - it's
made of phenolic carbon fibre. From memory, the Orion capsule is re-useable
10 times. Also, sea or air landing, they still have to transport the crew
and experiment results back to the Cape; that means aircraft and probably
jets at that. If they land near the Cape, they might be able to do recovery
with helicopters.

But, as has been pointed out, the SM's the real kicker to all this; due to
its mass, it must be de-orbited to the east of any land.
Jeff Findley
Posted: Wed Apr 09, 2008 8:23 am
Guest
"Brian Gaff" <briang1@blueyonder.co.uk> wrote in message
news:73QKj.4514$yD2.3939@text.news.virginmedia.com...
Quote:
There is a lot of water about, but not much land with nothing to hit on it
I think. Are they really able to land by parachute really accurately?

As someone else pointed out, it's not so much landing accuracy as much as
making sure the service module impacts somewhere safe, like the ocean. But
yes, landing accuracy can be high for a capsule. The aerodynamic shape of
the capsule provides quite a bit of hypersonic lift, which you can use for
both G-load reduction and for adding crossrange. If you add a parafoil type
parachute to the thing, you can land a capsule pretty much anywhere you
want.

Still, landing at Edwards is safer. Note that early shuttle flights landed
at Edwards. There is *a lot* of empty, dry lakebed there.

Jeff
--
A clever person solves a problem.
A wise person avoids it. -- Einstein
Jeff Findley
Posted: Wed Apr 09, 2008 8:25 am
Guest
"Alan Erskine" <alan.erskine@bigpond.com> wrote in message
news:hz2Lj.7677$n8.5031@news-server.bigpond.net.au...
Quote:
I think the only non-reuseable component is the heat shield (base) - it's
made of phenolic carbon fibre. From memory, the Orion capsule is
re-useable
10 times. Also, sea or air landing, they still have to transport the crew
and experiment results back to the Cape; that means aircraft and probably
jets at that. If they land near the Cape, they might be able to do
recovery
with helicopters.

Reusability is a bit up in the air. With Orion's problems (many of which
are caused by Ares I's performance problems), I'm guessing that reusability
is one of the many things they'll drop from the design.

Jeff
--
A clever person solves a problem.
A wise person avoids it. -- Einstein
Alan Erskine
Posted: Wed Apr 09, 2008 10:12 am
Guest
"Jeff Findley" <jeff.findley@ugs.nojunk.com> wrote in message
news:3ed5e$47fcc34e$927a2cda$13031@FUSE.NET...
Quote:
Reusability is a bit up in the air. With Orion's problems (many of which
are caused by Ares I's performance problems), I'm guessing that
reusability
is one of the many things they'll drop from the design.

If they just used the Delta IV Heavy like I told 'em....
Jeff Findley
Posted: Wed Apr 09, 2008 10:27 am
Guest
"Alan Erskine" <alan.erskine@bigpond.com> wrote in message
news:i15Lj.7714$n8.2388@news-server.bigpond.net.au...
Quote:
"Jeff Findley" <jeff.findley@ugs.nojunk.com> wrote in message
news:3ed5e$47fcc34e$927a2cda$13031@FUSE.NET...
Reusability is a bit up in the air. With Orion's problems (many of which
are caused by Ares I's performance problems), I'm guessing that
reusability
is one of the many things they'll drop from the design.

If they just used the Delta IV Heavy like I told 'em....

NASA thinks it has a mandate to keep as many shuttle workers employed as
possible. This includes workers at ATK currently making/refurbishing
shuttle RSRM's and workers at Michoud who are currently building shuttle
ET's. To say nothing of the infrastructure at KSC like the VAB, pads,
crawlers, and etc.

I'm hoping that the $#!^ hits the fan after the presidential election is
over and the politicians wake up and realize what an expensive dog Ares I is
turning out to be. The space station program was shaken up several times
over the years due to excessive spending and program delays. Ares/Orion
looks to be headed down the same path.

Jeff
--
A clever person solves a problem.
A wise person avoids it. -- Einstein
Alan Erskine
Posted: Wed Apr 09, 2008 12:02 pm
Guest
"Jeff Findley" <jeff.findley@ugs.nojunk.com> wrote in message
news:248a3$47fce065$927a2cda$13528@FUSE.NET...

Quote:
NASA thinks it has a mandate to keep as many shuttle workers employed as
possible. This includes workers at ATK currently making/refurbishing
shuttle RSRM's and workers at Michoud who are currently building shuttle
ET's. To say nothing of the infrastructure at KSC like the VAB, pads,
crawlers, and etc.

I'm hoping that the $#!^ hits the fan after the presidential election is
over and the politicians wake up and realize what an expensive dog Ares I
is
turning out to be. The space station program was shaken up several times
over the years due to excessive spending and program delays. Ares/Orion
looks to be headed down the same path.

As long as it doesn't cost 'us' (not just Americans) access to space. One
thing Orion will do is increase competition; along with Dragon and Soyuz.
I'm starting to think along the lines that Orion will only be used for 'high
Earth orbits' - Moon missions, while Dragon is used for ISS etc. Even with
that, once Dragon's proved itself, it would be easy to adapt it for Lunar
use; which means Orion will be out of business.
 
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