Talk:H-II Transfer Vehicle

message: There should be an H-II series article about the program and related rockets. 70.55.89.134 (talk) 07:41, 12 April 2008 (UTC)
thread_title: H-II series

message: see http://www.nasa.gov/home/hqnews/2008/jul/HQ_08181_HTV_statement.html  —Preceding unsigned comment added by 213.249.61.38 (talk) 17:27, 21 July 2008 (UTC)
thread_title: NASA Statement on Inaccurate Reports About Japanese Cargo Services

message: Volume is listed on other unmanned re-supply craft's pages.
Pressurized: 14m3
Unpressurized: 16m3
Total Volume: 30m3
--Craigboy (talk) 22:08, 14 February 2010 (UTC)
replies: text: Agreed.  But that link for the source you gave has gone dead.  If you have a good source so a verifiable citation could be added, you should just add the claim to the article.  Wikipedia works best when everyone is an editor.  Cheers. N2e (talk) 17:17, 15 November 2010 (UTC)
thread_title:  Need to list volume of craft 

message: "The ONSP’s logic for re-auditing the HTV-R is harsh. As it is too expensive to commercialize, the H-2B will be ditched as dead once its HTV duties are finished. As the HTV’s only purpose is to service the International Space Station, and Japan must minimize its costs, then logically the HTV, HTV-R and H-2B have no future beyond 2016 and the HTV’s seventh flight. Indeed, one industry source tells Aviation Week that Japan may launch perhaps two, at most, post-2016 missions."
--Craigboy (talk) 03:39, 27 April 2013 (UTC)
thread_title:  Info and news

message: With the final flight of the ESA ATV that leaves the HTV as the largest and most capable supply vehicle to ISS, like the ATV was post shuttle. I assume that'll be added to the article after ATV-5 is re-entered and a cinder. Doyna Yar (talk) 03:59, 14 August 2014 (UTC)
thread_title:  Demise of the ATV 

message: [https://oig.nasa.gov/audits/reports/FY14/IG-14-031.pdf Extending the Operational Life of
the International Space Station Until 2024. Sept 2014] on page 29 ("19") says 
"Battery Replacement Dependent on Japanese Vehicle. Another large set of ORUs that
will need replacing to extend ISS operations are the Ni-H2 batteries that provide
electricity when the Station is in the eclipse portion of its orbit. The batteries had an
expected operational life of 6.5 years, which has been extended to 10 years by
reconditioning and lower-than-expected drainage rates. The oldest batteries on Station
have been operating since 2006 and the newest since 2010. Accordingly, replacements
will be needed to extend ISS operations beyond 2020.
NASA plans to replace the Ni-H2 batteries with newly designed Lithium-Ion batteries,
which have a greater capacity to store energy. One of the new batteries will replace two
Ni-H2 models. NASA plans to deliver 24 of the new batteries in a series of four launches
between 2017 and 2020 using Japan’s H-II Transfer Vehicle (HTV). The Japanese
provide the HTV to NASA as part of a barter arrangement to offset their portion of ISS
operational costs. During the course of this audit, the Japanese verbally agreed to delay
two previously scheduled HTV launches to accommodate battery delivery missions in
2016 and 2017 and to fly two additional missions in 2019 and 2020 to transport the
remaining batteries. However, NASA officials told us the Japanese are reluctant to
continue production of the HTV beyond 2020 because of the high cost of producing and
operating the vehicle. With no HTV missions scheduled after 2020, NASA will lose the
largest cargo vehicle currently available. Accordingly, if additional radiators and solar
arrays are needed, NASA will have to either reduce the size of the ORUs or hope that
commercial cargo vessels capable of transporting larger equipment are available" (I dont have Japanese sources to confirm) - Rod57 (talk) 10:58, 5 May 2017 (UTC)
replies: text: Please read H-II_Transfer_Vehicle#HTV-X. --Fukumoto (talk) 14:04, 5 May 2017 (UTC)
replies: text:  I have, but why ? Does it confirm or contradict the NASA PDF ? - Rod57 (talk) 07:11, 27 November 2018 (UTC)
thread_title:  Final 4 flights needed for batteries to extend ISS operations 

message: Looks like it is always protected during launch by the H2B payload fairing - Article could say. - Rod57 (talk) 07:05, 27 November 2018 (UTC)
thread_title:  Protected during launch by the H2B payload fairing 

message: Article does not seem to give a cost for HTV. It says HTV-X is intended to reduce cost, but by how much ? - Rod57 (talk) 07:21, 27 November 2018 (UTC)
thread_title:  Cost 

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Participate in the deletion discussion at the . —Community Tech bot (talk) 15:51, 16 February 2020 (UTC)
thread_title:  A Commons file used on this page or its Wikidata item has been nominated for deletion 

message: I propose that section H-II Transfer Vehicle#HTV-X be split into a separate page called HTV-X. --Fukumoto (talk) 12:45, 4 March 2021 (UTC)
replies: text: * It is somewhat unfortunate timing since the delay of the development of H3 Launch Vehicle was announced recently, we don't know when the HTV-X1 is going to be launched.  --Fukumoto (talk) 04:42, 30 January 2022 (UTC)
thread_title:  Splitting proposal