Talk:Ballonet

This article is within the scope of the Aviation WikiProject. If you would like to participate, please visit the project page, where you can join the project and see lists of open tasks and task forces. To use this banner, please see the full instructions.AviationWikipedia:WikiProject AviationTemplate:WikiProject Aviationaviation articles

This article has not yet been checked against the criteria for B-class status:
Referencing and citation: not checked Coverage and accuracy: not checked Structure: not checked Grammar and style: not checked Supporting materials: not checked	To fill out this checklist, please add the following code to the template call: \| b1<!--Referencing and citation--> = <yes/no> \| b2<!--Coverage and accuracy --> = <yes/no> \| b3<!--Structure --> = <yes/no> \| b4<!--Grammar and style --> = <yes/no> \| b5<!--Supporting materials --> = <yes/no> assessing the article against each criterion.

This article is supported by the aircraft project.

The name

comes obviously from French ballonet for "small balloon" --93.111.97.44 (talk) 19:34, 21 March 2010 (UTC) (Helium4) --Helium4 (talk) 19:35, 21 March 2010 (UTC)[reply]

i would like to raise a flag about this explanation "when inflated, reduces the volume available for the lifting gas, making it more dense". this seems to be implying that inflating the ballonet compresses the lifting gas and this contributes to a reduction in lift. i don't think this is correct. i think that the decrease in lift is due entirely to your second half of the explanation, that is, that taking on board air from outside the airship increases the average density of the airship therefore it gets less buoyant lift i.e. the airship is simply heavier. what matters for the buoyant lift of the airship is the average density which is the total volume of the balloon i.e. outer envelope divided by total weight. if the ballonet expands within the volume of the outer envelope then the total volume stays the same and the weight goes up increasing average density. if anything, the ballonet would press on the interior side of the outer envelope and possibly cause it to expand insignificantly thereby increasing total volume. maybe i am wrong but i am confused why compressing the lifting gas is part of the mechanism for decreasing buoyancy.

thanks.

File:Ballonet-Anlage des Parseval-Luftschiffes LA2-Blitz-0246 blank.png Nominated for Deletion

An image used in this article, File:Ballonet-Anlage des Parseval-Luftschiffes LA2-Blitz-0246 blank.png, has been nominated for deletion at Wikimedia Commons in the following category: Deletion requests January 2012

What should I do?

Don't panic; a discussion will now take place over on Commons about whether to remove the file. This gives you an opportunity to contest the deletion, although please review Commons guidelines before doing so.

If the image is non-free then you may need to upload it to Wikipedia (Commons does not allow fair use)
If the image isn't freely licensed and there is no fair use rationale then it cannot be uploaded or used.

This notification is provided by a Bot --CommonsNotificationBot (talk) 15:33, 9 February 2012 (UTC)[reply]

External links modified

Hello fellow Wikipedians,

I have just modified one external link on Ballonet. 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 archive https://web.archive.org/web/20080516222023/http://www.fai.org/ballooning/newsletter/pr00-02.htm to http://www.fai.org/ballooning/newsletter/pr00-02.htm

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 06:20, 14 July 2017 (UTC)[reply]