Talk:Mars aircraft

External links modified
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I have just modified 4 external links on Mars aircraft. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added tag to http://www.airspacemag.com/space-exploration/mars.html?c=y&page=1
 * Added archive https://web.archive.org/web/20100617225204/http://marsairplane.okstate.edu/files/papers/AIAA-2004-1373.pdf to http://marsairplane.okstate.edu/files/papers/AIAA-2004-1373.pdf
 * Added archive https://web.archive.org/web/20100325205154/http://marsairplane.larc.nasa.gov/ to http://marsairplane.larc.nasa.gov/
 * Added tag to http://soliton.ae.gatech.edu/people/rbraun/classes/spacesystems05/Proposals/DaedalusProposal.pdf
 * Added archive https://web.archive.org/web/20120210195245/http://marsairplane.larc.nasa.gov/multimedia.html to http://marsairplane.larc.nasa.gov/multimedia.html
 * Added archive https://web.archive.org/web/20120210195245/http://marsairplane.larc.nasa.gov/multimedia.html to http://marsairplane.larc.nasa.gov/multimedia.html

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Nonsense about pressure
The following sentence makes no actual sense. I looked in the citation, and the statement is not in the source given:

"Mars air, consisting mostly of CO2 gas, is over 50% denser than Earth air adjusted to equal pressure." Cited source:


 * Scanning the source page (NASA Quest) for "dens", nothing is said about "over 50% denser" or "adjusted to equal pressure". What he actually says: "At any given pressure, carbon dioxide is denser than the air on Earth, which would increase a wing's lift."
 * The phrase "adjusted to equal pressure" makes no physical sense. Does that mean at the same pressure?

Carbon dioxide has a density of 1.98 kg/m3 at Earth standard temperature and pressure. The density of air at sea level is "about 1.2 kg/m3". Therefore, CO2 is 1.65 times denser than air. The problem is, Mars atmospheric pressure never gets anywhere near Earth's sea level pressure. The density advantage of CO2 is actually a bit technically complicated; lift is dependent on dynamic pressure, which in turn is dependent on atmospheric density and velocity squared.

We have a because the citation doesn't say what the article says. JustinTime55 (talk) 22:04, 25 June 2019 (UTC)

Requested move 29 July 2020

 * The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review after discussing it on the closer's talk page. No further edits should be made to this discussion. 

The result of the move request was: not moved ~ Amkgp  💬  19:36, 5 August 2020 (UTC)   ~ Amkgp  💬  19:36, 5 August 2020 (UTC)

Mars aircraft → Extraterrestrial aircraft – Proposing a scope change to include other extraterrestrial aircraft like Dragonfly (spacecraft), with its primary category being Category:Extraterrestrial aircraft. Soumya-8974 talk contribs subpages 06:25, 29 July 2020 (UTC) Oppose. I see no value in merging, and the length of this article is too long that it couldn't be merged, along with other extraterrestrial aircraft. The term "extraterrestial" is also a little vague, considering it could be interpreted as "aircraft by extraterrestrial life." If the term "aircraft" also refer to probes such as Voyager 1 (in which from the photos, it seems like it), then that would further strengthen my opposition.  Gerald WL  15:06, 1 August 2020 (UTC)
 * Would it make more sense to keep this page about Mars aircraft and create a separate one for the broader scope? I don't have too much knowledge in this area so it's a genuine question.--Yaksar (let's chat) 21:15, 29 July 2020 (UTC)
 * Oppose, it's a pretty good stand-alone topic now and has a lot of material to work with, but maybe revisit once Dragonfly successfully launches and deploys. And if the U.S. keeps "leaking" and announcing in a hint-hint nudge-nudge way about their UFO information, Wikipedia may have to save the proposed title for that topic (interesting and a maybe-a-little more than a little surprising that nobody's ever created it and redirected it to the UFO page). Besides, with Bradbury in mind, Mars. Randy Kryn (talk) 03:32, 30 July 2020 (UTC)
 * DragonFly is not the only aircraft that will fly towards the celestial body other than Earth and Mars. There are other aircraft that will do or once upon a time did so: HAVOC airship, atmospheric probes of Pioneer 13, AVIATR, SMARA, atmospheric probes of Vega, Venus Atmospheric Maneuverable Platform, etc. --Soumya-8974 talk contribs subpages 13:19, 1 August 2020 (UTC)
 * This is not about merging, it is about renaming. Extraterrestrial aircraft are designed to fly in the atmosphere of extraterrestrial bodies, while spacecraft are designed to fly in vacuum. --Soumya-8974 talk contribs subpages 05:23, 3 August 2020 (UTC)


 * Oppose - Just create a new article about extraterrestrial aircraft rather than hijack and clutter up an existing one. Category:Extraterrestrial aircraft suggests there are more than enough examples of non-Martian extraterrestrial aircraft to make a good start, with just summary-style section on Mars that links to this article. - BilCat (talk) 06:26, 3 August 2020 (UTC)
 * Comments - Aerobot actually has quite a lot about extraterrestrial aircraft that could be mined or moved to a new article. And it's actually a better candidate for hijacking than this article. I've never even heard the term "aerobot" which seems like a neologism anyway. Perhaps it's used a lot in space exploration publications, but its been years.since I read those on a regular basis. The title makes it seem like its emphasis should be on robotics and autonomy, but it's more about the aircraft types and uses. - BilCat (talk) 06:36, 3 August 2020 (UTC)