NASA Announces SLS/Orion Flight Slide

JF Mezei wrote:


At this stage, Trump hasn't killed NASA and even said midly positite
things about it. SLS hasn't been killed.

When Mike Pence takes over in a few [days, weeks,months], he isnt likely
to make big changes to NASA.


Just how do you think Mike Pence 'takes over'? Can you seriously
believe that a Republican Congress will impeach him or that a
Republican Senate will remove him from office? Do you expect him to
resign after the lesson of Bill Clinton? Are you thinking that the
Cabinet will vote to find him unable to serve through mental defect?

If you expect ANY of those you should cut back on your crack cocaine
consumption.


NASA staying under the radar is good in the sense that nothing drastic
happens to it. On the other hand, there isn't going to be "to land a man
on mars and bring him back safely before this decade is out" project.


The problem with 'staying under the radar' is that you make yourself
an irrelevant money sink and people will eventually notice that.


--
"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

trumps presidency will be over really soon....

the special proscuetor will distract trump for 6 to 9 months minimum..

this is as historic as nixon and watergate...

republicans are already talking impeachment, the republican support is under 38% and falling. the trump care health plan is a mess......

trumps next move will be former president.....

bob haller wrote:

elide bobbert wet dream

Off topic. STFU.


--
"Ordinarily he is insane. But he has lucid moments when he is
only stupid."
-- Heinrich Heine

In article ,
says...

you dont realize the historic nature of all this. its right up there with watergate.....

In sci.space, it really doesn't matter what I or anyone else believes
about Trump. Unless it has to do with SPACE, it's off topic.

Keep this political off topic crap out of sci.space!

Jeff
--
All opinions posted by me on Usenet News are mine, and mine alone.
These posts do not reflect the opinions of my family, friends,
employer, or any organization that I am a member of.

In article ,
says...

trumps presidency will be over really soon....

Off topic.

Jeff

--
All opinions posted by me on Usenet News are mine, and mine alone.
These posts do not reflect the opinions of my family, friends,
employer, or any organization that I am a member of.

On Thursday, May 18, 2017 at 5:56:37 AM UTC-4, Jeff Findley wrote:
In article ,
says...

trumps presidency will be over really soon....

Off topic.

Jeff

his issues can effect not only our entire country but the entire world. theres now suspicions he is has dimentia.

he could end all human life on our world, by starting a nuclear war........

bob haller wrote:

On Thursday, May 18, 2017 at 5:56:37 AM UTC-4, Jeff Findley wrote:
In article ,
says...

trumps presidency will be over really soon....

Off topic.


his issues can effect not only our entire country but the entire world. theres now suspicions he is has dimentia.

he could end all human life on our world, by starting a nuclear war........


Regardless, your political bull**** is off topic, Bobbert.


--
"Some people get lost in thought because it's such unfamiliar
territory."
--G. Behn

JF Mezei wrote:

On 2017-05-20 20:21, bob haller wrote:

his issues can effect not only our entire country but the entire world. theres now suspicions he is has dimentia.


NASA has its marching orders, its budgets and projects all laid out, so
it is pretty immune to watever happens to Trump in the next year.


One year at a time. They're 'immune' until the end of September, then
they better have a new budget.


The one possible concern would be the ISS. The ISS relationship with
Russia has survived the previous round of sanctions due to Ukraine, but
with Trump, if he gets angry, he may decide to cut all US-Russia
relationship with ISS, including USA providing electricity to russian
segment. (not realizing that heither SpaceX nor Boeing are ready with
their taxi service).


What a silly notion.


Question: in and Apollo 13 type of situation, could someone return in a
cargo Dragon? Am thinking they send up a launch/re-entry suit with O2
tanks, and some foam mattress to cushion the landing? Or would such a
trip absolutely not be surviveable?


I wouldn't bet on it being survivable. Just throwing down some
mattresses and letting everything bounce around inside the capsule
strikes me as a good way to get back jelly.


(Alternatively use a space suit).


Same outcome. There are no restraint or cushion systems in the base
Dragon that let you bring people back.


--
"Insisting on perfect safety is for people who don't have the balls to
live in the real world."
-- Mary Shafer, NASA Dryden

JF Mezei wrote:

On 2017-05-20 21:45, Fred J. McCall wrote:

I wouldn't bet on it being survivable. Just throwing down some
mattresses and letting everything bounce around inside the capsule
strikes me as a good way to get back jelly.


But if SpaceX sent up a Dragon with cargo, gets emptied, except for
space suit and glorified mattress and bungee cords. Crewman gets in ,
straps him/herself in and goes down.


And dies from being sliced to ribbons by bungee cords and jellied
against the sides of the capsule.


Since Dragon is able to return cargo, I have to assume the ride can't be
all that difficult from a temperature or G force point of view.


Cargo comes down in specialized containers that can be bolted into
place. They don't just toss the **** in a pile in the middle of the
capsule.


Also, while crewed Dragon will have fancy ECLSS, control panels with
blinking lights and buttons for crew control, how different will the
actual capsule structure and retro rockets/parachutes be from the
existing cargo one ?


Seats. With restraint systems. And shock absorbers. You don't seem
to understand that a capsule reentry can be a fairly violent trip as
such things go. You're talking about peak deceleration of 3g-5g with
random hard jolts in random directions. It's not a nice smooth trip
like you seem to think it is.


Or are current parachutes and landing rockets insufficiant for even 1
crewmember?


That's not the problem. The problem is getting down to the point
where you use that stuff.


Again, this was an in Apollo 13 scenario where they have no choice but
to rip up the manuals and do what is actually doable.


Why do you ask questions and then argue with the answers you get?
Either you know enough to already have an informed opinion (you don't)
and so shouldn't be asking the questions or you don't know enough to
have an informed opinion (you don't) and so shouldn't be arguing with
the answers.

If you have no choice you do it anyway and probably die. I really
can't imagine a situation in which you'd have no choice. Why wouldn't
you just use the 'life boats' that are already docked to the station?
If you can't, why wouldn't you launch more of those?


--
"Insisting on perfect safety is for people who don't have the balls to
live in the real world."
-- Mary Shafer, NASA Dryden

JF Mezei wrote:

On 2017-05-21 05:27, Fred J. McCall wrote:

And dies from being sliced to ribbons by bungee cords and jellied
against the sides of the capsule.


Precisely what phase of re-entry would cause that?


The 'slowing from hypersonic speeds to terminal velocity' part.



Seats. With restraint systems. And shock absorbers. You don't seem
to understand that a capsule reentry can be a fairly violent trip as
such things go.


Which was the goal of my question, but you respond with silly arguments
such as "jellied against the sides of the capsule".


I'm sorry you find reality "silly", but there you go. How do you
restrain your astronauts and their mattress? Bungee cords won't get
it. Without FULL RESTRAINT people are going to get slammed around
inside the capsule.



You're talking about peak deceleration of 3g-5g with
random hard jolts in random directions. It's not a nice smooth trip
like you seem to think it is.


Hard jolts? looking at space shuttle re-entry videos, the crew didn't
seem any rougher than on a bus.


The STS isn't a capsule, you ****wit. You didn't ask about shipping
them a Shuttle to make an emergency reentry. You asked about stuffing
them into a Dragon cargo capsule. The Shuttle is a ****ing plane with
lift and control and great big wings and ****. Maximum g on a Shuttle
reentry is like 2g. It FLIES down. A ballistic reentry like a
capsule does, with some minimal lift, gives you 3g or more with jolts
much higher. Note that the Shuttle still restrained occupants in
seats, not just a mattress and some bungee cords.


It isn't like there are flying pigs that get hit by the capsule during
re-entry, is it ?


It is a lot like that. You have an ablative heat shield that is
vaporizing and shedding bits. You are flying very fast through air
that is NOT of uniform density. The capsule is NOT flying on a great
big ****ing wing, so you get a plasma sheath and a big shockwave going
on around the capsule. All that will tend to buffet the **** out of
it.

Now stop being such a goddamned nitwit.


--
"Ignorance is preferable to error, and he is less remote from the
truth who believes nothing than he who believes what is wrong."
-- Thomas Jefferson