"JF Mezei" wrote in message ...
On 2018-09-07 00:07, Greg (Strider) Moore wrote:
I believe the CSM was pressurized from outside and the unplugged (since
it
was a plugs out test).
If this is a leak test to ensure capsule can sustain 5PSI above
environment (5PSI vs vacuum or 19.7PSI vs 14.7), is there a difference
between filling it with O2 vs normal air (N2 and O2) ?
What need were they filling by pressurizing the capsule with O2 vs air ?
(Or what problem did they think would happen if it were filled with air ?)
I take it 19.7PSI of pure O2 is still nowhere near the level where O2
becomes poisonous? (we learn that in scuba diving, but people don't
breathe pure O2 when scuba diving).
Of course Mercury had one. Vostok had one.
Gemini had ejection seats; which failed in one test. Well the seats
apparently worked, but the hatches didn't properly eject.
If Vostok had one, you'd think it would have been adapted/reused for
Vokshod.
No, I wouldn't. Because I'd know that part of Vostok's abort capability was
its ejection seat.
But, they couldn't fit 3 cosmonauts in the capsule with that, and so
squeezed them in, made them lose weight and rotated the orientation 90
degrees.
And removed the tower to save weight.
3 cosmonauts weigh 3x as much as 1.
Apollo had complete abort capability all the way to orbit.
Thanks. With capsule launch eject, the need for those basket joyride
down a zip line was even less needed.
They served different purposes.
And I recall now that in From Earth to moon (or Apolloow 13) there is
mention of phase of flight where they "tower jet" to remove the rocket
that could lift capsule out.
That's basically it. Though there is a continuity error in the movie in
terms of that.
stack. There was a SRM to make sure it was pulled to one side and not
just
straight up (where an accelerating Saturn could then run into it).
Pardon my ignorance, what is SRM? software, innertial based hardware?
or just hardwired exhaust designed to give a slant to any ascention?
Solid Rocket Motor. It's not an SRB because it's not part of the boost
phase.
--
Greg D. Moore
http://greenmountainsoftware.wordpress.com/
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