Talk:Atmospheric entry

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Former featured article candidate Atmospheric entry is a former featured article candidate. Please view the links under Article milestones below to see why the nomination failed. For older candidates, please check the archive.
July 21, 2006 Featured article candidate Not promoted

Request: Comparison of densities/mass properties for ablative/heat soak/active shielding[edit]

As mentioned in the article,

"The thermal conductivity of a particular TPS material is usually proportional to the material's density

[...]

SLA in SLA-561V stands for super light-weight ablator"

- that actually opens up more questions than it answers ;)

What exactly qualifies as "super light weight"? How does SLA compare to the reportedly "featherweight" Shuttle tiles? How do the different shielding approaches relate to each other in direct comparison? What percentage of a spacecraft mass needs to be allocated to heat shielding, and how does that differ between the available (and possible future?) technologies? — Preceding unsigned comment added by 188.174.63.128 (talk) 03:21, 2 July 2015 (UTC)

I suspect that that may be marketing jargon by Lockheed Martin, who manufactures the product. I would suggest inquiring from them. Geogene (talk) 17:45, 2 July 2015 (UTC)
Thanks for the reply, however this request was not so much about the specifics of SLA in and of itself, but rather about the mass properties of the various heat shielding materials in general, since the article lacks any numbers in that regard. Of course, examples, or ideally a table providing an overview over many different types would be very welcome. — Preceding unsigned comment added by 188.174.63.128 (talk) 04:44, 5 July 2015 (UTC)

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External links modified[edit]

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