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#1920
by
generic_handle_42
on 14 May, 2009 03:05
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Hi folks:
I just finished watching flight day 2 highlights and I saw a burn from the OMS engine.
My question is: why did it glow red on the tail but it looked like a "yellow jet" shooting to the right?
Here's your screencap:
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#1921
by
usn_skwerl
on 14 May, 2009 03:27
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I didn't want to add this to the FD4 thread that will be made soon, but wanted to know if SAFER packs are going to be used on the HST EVA's. Thanks.
Jeph
edit; couple words added for more sense.
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#1922
by
oxford750
on 14 May, 2009 04:44
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Thanks for the help Lee Jay.
Thanks generic_handle_42,
That is the screen shot I got.
I just want to know why the two different colours?
I mean I have seen an "OMS" burn before and it had a mainly red glow on tail.
I have never seen the "yellow" jet before.
Oxford750
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#1923
by
Jim
on 14 May, 2009 06:40
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Noise would scare them away from the area.
No known hits for other vehicles.
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#1924
by
Jim
on 14 May, 2009 06:49
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#1925
by
duane
on 14 May, 2009 07:10
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Noise would scare them away from the area.
No known hits for other vehicles.
Thanks Jim.
Is the Boost protective Cover also designed to handle bird impacts, or would that be negligble compared to the aero forces on it ?
Thanks!
Duane
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#1926
by
Jim
on 14 May, 2009 07:25
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I doubt it is designed for it or any other vehicle. An impact would have much higher forces.
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#1927
by
oxford750
on 14 May, 2009 07:30
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Thanks for the answer Jim.
The reason I said I had "NEVER" seen the "yellow jet" before is not only because its true but I was thinking of a specific video, which shows an OMS burn, (on Atlantis also as I recall) through the payload bay windows at night where all you see is the outline of both OMS pods glowing red and you see both sides of the tail. That video has NO "yellow jet", yet it's also an OMS burn.
Oxford750
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#1928
by
Jim
on 14 May, 2009 07:41
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yellow could be an RCS thruster
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#1929
by
oxford750
on 14 May, 2009 16:22
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Thats what I thought.
Thanks Jim
Oxford750
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#1930
by
Ronsmytheiii
on 15 May, 2009 02:00
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Not sure if this belongs here, but what is this:
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#1931
by
MKremer
on 15 May, 2009 02:39
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Not sure if this belongs here, but what is this:
I believe that's the weight simulator for the VAB cranes.
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#1932
by
elmarko
on 15 May, 2009 11:05
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After MECO there's usually an LOS due to "spreading" - can someone tell me what this is please?
Anybody? :/
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#1933
by
psloss
on 15 May, 2009 11:12
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#1934
by
Danny Dot
on 15 May, 2009 11:20
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After MECO there's usually an LOS due to "spreading" - can someone tell me what this is please?
Anybody? :/
I have never heard of this.
Danny Deger
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#1935
by
elmarko
on 15 May, 2009 11:40
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After MECO there's usually an LOS due to "spreading" - can someone tell me what this is please?
Anybody? :/
I have never heard of this.
Danny Deger
CAPCOM usually calls it out on the A/G.
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#1936
by
Antares
on 17 May, 2009 15:00
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it would not be any worse to it than a bird hitting the leading edge of a 747 at cruise speed.
Which is roughly the same ballistic scenario as STS-107. Relative speed, mass, q was lower at impact on 107.
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#1937
by
Antares
on 17 May, 2009 15:07
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it would take HUGE dollars to certify them as being safe.
I don't mean to single out Danny. I think this is one of the biggest mental obstacles across the personnel in the human spaceflight program. Why does it take huge dollars to do this? Why does it even have to be done at all? If I'm CDR, I'm going for the nearest 10,000 foot runway (or five lane freeway) that my energy allows without yanking and banking the Orbiter. I don't care if it's certified or not.
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#1938
by
Danny Dot
on 17 May, 2009 15:21
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it would take HUGE dollars to certify them as being safe.
I don't mean to single out Danny. I think this is one of the biggest mental obstacles across the personnel in the human spaceflight program. Why does it take huge dollars to do this? Why does it even have to be done at all? If I'm CDR, I'm going for the nearest 10,000 foot runway (or five lane freeway) that my energy allows without yanking and banking the Orbiter. I don't care if it's certified or not.
You are correct on this being a great obstacle. This excuse was used at least twice in my career to kill ideas I had -- "Great idea Danny, but it would cost too much to certify."
But for any single engine out abort, it does need extensive and expensive certification. In contingency cases the CDR can do what is needed to land the orbiter where ever he can, but a single engine out abort is NOT a contingency -- it must be fully certified. Believe it or not, RTLS is fully certified but not tested.
Danny Deger
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#1939
by
Lee Jay
on 17 May, 2009 15:27
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...fully certified but not tested.
This seems like a near contradiction to me.
