[AZ-Observing] Re: Not Really AZ or Observing: Space Shuttle Video
- From: "Jimmy Ray" <jimmy_ray@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Thu, 13 Jul 2006 06:38:17 -0700
Ah yes, I had forgotten that from the side view the shuttle goes through
(one?) flex cycle and SRB ignition occurs at it swings back to vertical. If
you watch from the top of the SRB looking down, the illusion (?) is that the
orbiter (but not the SRB) moves forward (spaceward) a few inches, falls back
with SRB ignition occurring as the orbiter comes back to "rest". As the
camera is at the top of the flexing stack, it would obviously be in motion
with the rest of the vehicle and being at the top should see a fair deal of
motion. I'll go back ad watch it again with the stack flex in mind and see
if the illusion "goes away"...
Jimmy Ray
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx]On Behalf Of Sam&Anne
Sent: Thursday, July 13, 2006 6:11 AM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Not Really AZ or Observing: Space Shuttle Video
Jimmy Ray wrote:
> EXCELLENT!! I agree at it is amazing how much the shuttle lifts them
> falls back toward the pad before SRB ignition! Wonder how that feels
> from the flight deck?
Since the SRBs are bolted to the pad until they ignite, it's not really
lifting them - maybe that's not what you meant.
The shuttle engine ignition rocks them forward; then they spring back.
At that point, the SRBs fire, release, and they are able to rise.
Cool video - thanks.
Sam
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