Falcon 1 Flight 4 HD Video now up
Damon Hill
version are available now. A summary with music soundtrack and additional
footage not previously shown including restart of the upper stage and
signal reacquisition after the first orbit.
http://www.spacex.com/multimedia/videos.php
--Damon
Tad Danley
Very nice! It looked like Falcon 1's trajectory
did not pitch over until well into the flight
compared to a shuttle launch. Wonder why?
Tad Danley, K3TD
TRA #4501
Alan Erskine
news:Xns9B2DBEBC86A2...@216.196.97.136...
Wonderful! Wonderful stuff! :-) :-)
OM
...Good choice of muzak for the compilation. Wonder how long the Kwaj
reconnect lasted?
OM
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kT
I was wondering that myself, it seemed fairly well lofted. Lofting seems
to be the name of the game in unmanned launch vehicles. Part of it with
the shuttle is that range demands that the shuttle not shower the area
with debris in case of catastrophic failure of the vehicle after launch.
This wouldn't seem to be a problem out there in the Marshall Islands.
There is a fairly accurate Falcon 1 addon for Orbiter that you can fly
You'll be surprised what you have to do to make orbit. Lofting also
presents less stress and thermal heating for the vehicle, but then
requires more extreme acceleration at the end of the flight profile.
In the end you can fly any profile you want, as long as the vehicle
doesn't consume itself ramming into air, destroy itself on the final leg
of acceleration, or run out of fuel. Ideally you want to conserve fuel.
There are other flight profile optimization criteria in play as well,
particularly with manned rendezvous flights.
Rick Jones
Having looked at that I am going to ask, since "close" can be a
relative thing, is the first stage still coming "close" to the second
stage engine nozzle?
Also, on the reacquisition video, are those two balls of (presumably)
ice floating around on the _inside_?
rick jones
--
a wide gulf separates "what if" from "if only"
these opinions are mine, all mine; HP might not want them anyway... :)
feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...
Damon Hill
news:gcdm5n$qg9$2...@usenet01.boi.hp.com:
>
> Having looked at that I am going to ask, since "close" can be a
> relative thing, is the first stage still coming "close" to the second
> stage engine nozzle?
Sure looks that way; it's a tight fit. I stepped through the frames and
there was no contact. Looked like several inches of clearance.
> Also, on the reacquisition video, are those two balls of (presumably)
> ice floating around on the _inside_?
Frost, ice, insulation, whatever; LOX does that in a humid environment.
You'll have noticed the drops of water on the window and the occasional
bits of stuff floating away.
--Damon
Rick Jones
> Rick Jones <rick....@hp.com> wrote in
> > Also, on the reacquisition video, are those two balls of
> > (presumably) ice floating around on the _inside_?
> Frost, ice, insulation, whatever; LOX does that in a humid
> environment. You'll have noticed the drops of water on the window
> and the occasional bits of stuff floating away.
Right, what appeared to be on the _outside_ though. It was surprising
seeing it on the inside
rick jones
--
denial, anger, bargaining, depression, acceptance, rebirth...
where do you want to be today?
Pat Flannery
Rick Jones wrote:
> Right, what appeared to be on the _outside_ though. It was surprising
> seeing it on the inside
>
There has to be some form of venting to the exterior atmosphere in the
interstage area though so that air pressure doesn't build up in there
during ascent. That could allow moisture to get in there and freeze from
close proximity to cold Lox plumbing.
Pat
Jochem Huhmann
> Damon Hill <damon...@comcast.not> wrote:
>> Rick Jones <rick....@hp.com> wrote in
>
>> > Also, on the reacquisition video, are those two balls of
>> > (presumably) ice floating around on the _inside_?
>
>> Frost, ice, insulation, whatever; LOX does that in a humid
>> environment. You'll have noticed the drops of water on the window
>> and the occasional bits of stuff floating away.
>
> Right, what appeared to be on the _outside_ though. It was surprising
> seeing it on the inside
The camera seems to look through a glass window and some ice seems to
judder around on the inside of that window. As others have said, water
and ice being present in such an environment should not be surprising.
Jochem
--
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longer anything to add, but when there is no longer anything to take away."
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