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AIAA Journal of Spacecraft and Rockets
Paolo
post Jan 2 2010, 10:49 AM
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Issue 6 from 2009 is freely accessible
http://www.aiaa.org/content.cfm?pageid=322...=25&sItem=6
UMSF related papers:
Phoenix Landing Site Hazard Assessment and Selection
Supersonic Performance of Disk-Gap-Band Parachutes Constrained to a 0-Degree Trim Angle (MSL)


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I'm one of the most durable and fervent advocates of space exploration, but my take is that we could do it robotically at far less cost and far greater quantity and quality of results.

James Van Allen
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imipak
post Jan 2 2010, 05:42 PM
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As @doug_ellison pointed out on Twitter, the authors of the latter paper have made an old, unfortunate error. It's apparent in the first sentence of the introduction...

QUOTE
Supersonic wind-tunnel tests of 0.813 m disk-gap-band parachutes were conducted in a 10 x 10 ft cross section of
a closed-loop wind tunnel.

rolleyes.gif


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djellison
post Jan 2 2010, 05:44 PM
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My gripe was the drawing of the parachute that was marked out in inches - without even, anywhere, saying 'inches'. Just '22.00 approx' on the width. Oh, and the well known ounces per square yard.

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nprev
post Jan 2 2010, 08:15 PM
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Man...If there's ONE lesson that should have been permanently learned for a reason I won't rehash in every aspect of UMSF, this is it. sad.gif


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A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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djellison
post Jan 2 2010, 08:41 PM
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The 10ft x 10ft wind tunnel doesn't bother me so much - it was probably built as a 10ft x 10ft wind tunnel, like the 120ft wind tunnel at Ames - that's what it's called.

But unless it's in the form of a pseudo proper noun like that - it is utterly horrifying (as Scott suggested in marsandme a sol or so ago) that they would use these outdated units.
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Paolo
post Jan 7 2010, 06:17 PM
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A few more UMSF-related papers in sample issues of AIAA journals

JOURNAL OF GUIDANCE, CONTROL, AND DYNAMICS
Multiple-Model Adaptive Fault-Tolerant Control of a Planetary Lander
Design of Solar Sail Trajectories with Applications to Lunar South Pole Coverage

JOURNAL OF PROPULSION AND POWER
Numerical Simulation of SMART-1 Hall-Thruster Plasma Interactions
Dawn Ion Propulsion System: Initial Checkout After Launch


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I'm one of the most durable and fervent advocates of space exploration, but my take is that we could do it robotically at far less cost and far greater quantity and quality of results.

James Van Allen
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Paolo
post Jan 1 2011, 05:31 PM
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the 6th issue of 2010 of the Journal of Spacecraft and Rockets is now accessible for free
http://www.aiaa.org/content.cfm?pageid=322...=25&sItem=6
lots of Stardust-reentry related paper, ExoMars, human exploration of asteroids etc


--------------------
I'm one of the most durable and fervent advocates of space exploration, but my take is that we could do it robotically at far less cost and far greater quantity and quality of results.

James Van Allen
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