philip347
29th October 2009 - 09:54 PM
The Aires test launch for the sub systems orbital feasibility insertion, to NASA’s apparent requirements, seems by them to have been a success.
May it be noted, that during separation of the large spent solid rocket motor casing, that it was visually apparent in the high altitude photography of this separation, that one side of the rocket motor casing, seemed to have stayed with the superior proposed to be installed Lander and crew capsule.
So accordining to separation to a fold, rather than a clean separation, with the aft now spent rocket motor casing placed in a straight line tow.
This position should be where the crew Lander and assent crew module, should also be traveling in a straight line.
The release I’m supposing should be at a higher altitude, to where there is no atmosphere, so as not to waver the direction of this main assent segment, once separation has occurred?
I had noted with reference to past photographs and moving pictures of Russian rocket, that they sometimes leave large open areas within the design of their assent vehicles.
I’m guessing, as I have never been an aerospace guest of the Russian empire, that these purposely large left opened and not covered areas, are allowed to prevent separation suction cavitation, if the vehicle would have to separate at a lower altitude?
Even at very high altitude utilizing the past super surveillance aircraft, the SR-71. it is shown that because of the factors of a considerable forward velocity. That the per cubic enacting dispercement of air molecules, counts as a one in a Pascal mathematical transformation accountably matrix, primary because the affect on ventral lifting surface on the bottom and other surface of the SR-71 count as a group, per traveled distance in velocities, effecting density of molecules of air enacting principles of effect on any traveling aero-surface.
This post is for those curious as to why the Aries accordion folded at the apogee of its flight and for students who would be interested at very high altitude separations of booster rocket assemblies.
Thank you
uaafanblog
30th October 2009 - 01:40 AM
This was a test launch with no second stage burn. Such a burn would have made the SRM separation look completely different. You are reading something into the visual that has no basis.
Just from the audio it's clear the vehicle must have been somewhere greater than 120,000 feet at separation. At that level the atmospheric pressure is down to less than .2 pounds per square inch.
And the vehicle's name is ARES ... not AIRES or ARIES as you typed.
philip347
30th October 2009 - 04:01 PM
Noted.
Capracus
2nd November 2009 - 12:56 PM
NoCleverName
3rd November 2009 - 03:11 AM
QUOTE (philip347+Oct 29 2009, 05:54 PM)
This post is for those curious as to why the Aries accordion folded at the apogee of its flight and for students who would be interested at very high altitude separations of booster rocket assemblies.
There are side-facing "Kick motors" specifically placed to cause the booster to separate sideways. The sideways motion increases drag which helps keep the two pieces from running into each other. The first stage is slowed also because there are parachutes which allow its recovery. Slowing the first stage makes it easier on the parachutes when they deploy.
adoucette
11th November 2009 - 02:13 AM
The fake second stage was also ballasted as per the real second stage, but that puts the center of gravity behind the center of pressure, hence it was inherently unstable. (like not having feathers on an arrow)
Without any steering forces (as would be on the real second stage) it was expected to go in a flat spin (as had been seen in most of the simulations).
There was nothing anomalous about the separation.
On the other hand, one of the parachutes on the booster failed to inflate, and it appeared to cause partial collapse of a second chute.
This apparently caused the SRB to hit the water quite a bit harder then planned and somewhat sideways.
Arthur
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