Gemini 5 Technical Debriefing, Part I, 1965

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Cooper
Conrad
Cooper
FCSD REP
Cooper
Conrad
Cooper
Conrad
Cooper
FCSD REP
FHID~Nf lAL
27
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You can feel t hem almost mo,-e than you can hear
them.
You can feel them vibrate really, more than
you can hear them.
I mean, you can hear them
too, but the vibrat ion you can hear them too, but
t he vi bration you can f eel the thrust.
Have you ever heard a high speed hose or high speed
water jet. Shhh ... That 's the impression that I
had.
Yes, that ' s right.
Even from the aft firing thruster?
Ever y thruster we had on t here.
We heard every thruster on the whol e f l ight
It never occurred in my mind when the thrus t ers
were fired.
You can feel them and I can hear them.
I couldn't hear them in the sense of an expl osive
sound or a roar. It sounded like wat er swishing.
Yes , very definitely, more a Shhh.
And I was aware of it again when we made the burns
later on, you know, we made the reverse coelliptic
stuff and all that.
How did these noises , the thruster noises , sound
compared with the way the last crew set the
mission simulator?
'