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m updated space project tag
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m Maintain {{WPBS}}: 3 WikiProject templates. Keep majority rating "Start" in {{WPBS}}. Remove 3 same ratings as {{WPBS}} in {{WikiProject Spaceflight}}, {{WikiProject Rocketry}}, {{WikiProject United States}}. Remove 6 deprecated parameters: b1, b2, b3, b4, b5, b6.
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{{WikiProject banner shell|class=Start|1= |
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{{WPSpace |
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{{WikiProject Spaceflight|importance=Low}} |
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|small= |
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{{WikiProject Rocketry}} |
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|class=Stub |
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{{WikiProject United States|importance=low}} |
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<!-- Related projects --> |
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|astronomy= |
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|astro_object= |
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|astrophysics= |
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|solar_system= |
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|mars= |
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|moon= |
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|space_exploration=yes |
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<!-- Project importance ratings --> |
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|mars-importance= |
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|moon-importance= |
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|space_exploration-importance=top |
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}} |
}} |
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==Could reverse the redirect== |
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==July 2006== |
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This should be redirected in the opposite direction. There is no reason for caps. [[User:Ksnow|Ksnow]] 09:33, 7 July 2006 (UTC)Ksnow |
This should be redirected in the opposite direction. There is no reason for caps. [[User:Ksnow|Ksnow]] 09:33, 7 July 2006 (UTC)Ksnow |
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== How long did it take to prepare it for the next flight == |
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[[Criticism_of_the_Space_Shuttle_program#Costs]] says "The toxic propellants used for the OMS/RCS thrusters required special handling, during which time no other activities could be performed in areas sharing the same ventilation system. This increased turn-around time" - [[User:Rod57|Rod57]] ([[User talk:Rod57|talk]]) 22:26, 16 April 2017 (UTC) |
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== Requested move 22 January 2020 == |
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<div class="boilerplate" style="background-color: #efe; margin: 0; padding: 0 10px 0 10px; border: 1px dotted #aaa;"><!-- Template:RM top --> |
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:''The following is a closed discussion of a [[Wikipedia:Requested moves|requested move]]. <span style="color:red">'''Please do not modify it.'''</span> Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a [[Wikipedia:move review|move review]] after discussing it on the closer's talk page. No further edits should be made to this discussion. '' |
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The result of the move request was: '''not moved''' to the proposed title at this time, per the discussion below. {{#if:|<small>([[Wikipedia:Requested moves/Closing instructions#Non-admin closure|non-admin closure]])</small>|{{#if:|<small>([[Wikipedia:Requested moves/Closing instructions#Closure by a page mover|closed by non-admin page mover]])</small>}}}} [[User:Dekimasu|Dekimasu]]<small>[[User talk:Dekimasu|よ!]]</small> 15:51, 30 January 2020 (UTC) |
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---- |
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[[:Space Shuttle Orbital Maneuvering System]] → {{no redirect|Orbital Maneuvering System}} – <s>Unnecessary disambiguation, as "Orbital Maneuvering System" is enough and more widely used than "Space Shuttle Orbital Maneuvering System".</s> Requesting to withdraw the nomination because of the unanimous opposition. [[User:Soumya-8974|Soumyabrata]] ([[User talk:Soumya-8974|talk]] • [[Special:PrefixIndex/User:Soumya-8974|subpages]]) 17:52, 22 January 2020 (UTC) |
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*'''Oppose''' for now, will keep track of the discussion. The page indicates that the system was Space Shuttle specific, so using the present name seems a more accurate encyclopedic descriptor. [[User:Randy Kryn|Randy Kryn]] ([[User talk:Randy Kryn|talk]]) 03:42, 23 January 2020 (UTC) |
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*'''Oppose''' as the name "Orbital Maneuvering System" is used in relation to other spaceflight systems, like the [[EELV Secondary Payload Adapter|ESPA]] and [[Buran_(spacecraft)|Buran]]. Also keeps the title in line [[Space Shuttle Solid Rocket Booster]]. -- [[User:Netoholic|Netoholic]] [[User talk:Netoholic|@]] 10:59, 23 January 2020 (UTC) |
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*'''Oppose''' Overly generic proposed title that could potentially exist on any spacecraft.<sub><small>[[User:Zxcvbnm|ZXCVBNM]] ([[User Talk:Zxcvbnm|TALK]])</small></sub> 21:05, 24 January 2020 (UTC) |
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---- |
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:''The above discussion is preserved as an archive of a [[Wikipedia:Requested moves|requested move]]. <b style="color:red">Please do not modify it.</b> Subsequent comments should be made in a new section on this [[Help:Using talk pages|talk page]] or in a [[Wikipedia:Move review|move review]]. No further edits should be made to this section.''<!-- Template:RM bottom --></div> |
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== Data mismatch dv/isp/mass == |
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The figures, despite from seemingly reliable sources, don't add up. |
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{| class="wikitable" |
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|- |
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| Isp of 316 s || ve of 3100 m/s || ve = Isp*g0 |
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|- |
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| dv || 300 m/s || |
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|- |
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| Orbiter dry mass || 78,000 kg || |
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|- |
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| Orbiter wet mass, or gross take-off weight || 100-110,000 kg || depending on source |
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|- |
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| OMS fuel capacity || 21,660 kg || |
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|- |
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| Payload || 29,500 kg || |
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|} |
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This means: |
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{| class="wikitable" |
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|- |
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| wet mass || 129,000 kg || dry mass + payload + fuel |
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|- |
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| dry mass || 59,000 kg || wet mass - payload - fuel |
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|- |
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| dv || 565-750 m/s || dv = Isp * g0 * ln(m0/(m0-fuel)), for m0=129 and 100 tons, respectively |
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|} |
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What am I missing? |
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[[User:Andersenman|Andersenman]] ([[User talk:Andersenman|talk]]) 13:19, 4 February 2020 (UTC) |
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== Why even have the OMS? == |
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I feel this article should answer the question of why there was even a need to fit a separate OMS instead of using the main engines to perform its functions.--[[User:Cancun|Cancun]] ([[User talk:Cancun|talk]]) 11:50, 9 August 2020 (UTC) |
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: eg. Main engines had no propellant after the External Tank was jettisoned. - [[User:Rod57|Rod57]] ([[User talk:Rod57|talk]]) 12:39, 27 September 2020 (UTC) |
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== "Orbital maneuvering system" listed at [[Wikipedia:Redirects for discussion|Redirects for discussion]] == |
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[[File:Information.svg|30px]] |
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A discussion is taking place to address the redirect [[:Orbital maneuvering system]]. The discussion will occur at [[Wikipedia:Redirects for discussion/Log/2020 September 2#Orbital maneuvering system]] until a consensus is reached, and readers of this page are welcome to contribute to the discussion. <!-- from Template:RFDNote --> [[User:Soumya-8974|Soumya-8974]] <sup>[[User talk:Soumya-8974|talk]]</sup> <sub>[[Special:Contributions/Soumya-8974|contribs]]</sub> <sup>[[Special:PrefixIndex/User:Soumya-8974|subpages]]</sup> 13:51, 2 September 2020 (UTC) |
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== Other things to add == |
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Other things to add - eg ref the OMS workbook : |
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* propellants could be cross-fed between OMS pods |
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* OMS propellant could feed the RCS |
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* OMS pods had separate He tanks for the OMS and RCS systems |
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* OMS pods had N2 tanks, for post-firing engine purge, (and maybe other things) |
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* OMS engines could not be used under 70,000 ft (or nozzles might collapse) |
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* OMS engines could gimbal (and had two redundant sets of gimbaling actuators) |
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* - [[User:Rod57|Rod57]] ([[User talk:Rod57|talk]]) 23:13, 26 September 2021 (UTC) |
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 | This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||||||||||||
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This should be redirected in the opposite direction. There is no reason for caps. Ksnow 09:33, 7 July 2006 (UTC)Ksnow[reply]
Criticism_of_the_Space_Shuttle_program#Costs says "The toxic propellants used for the OMS/RCS thrusters required special handling, during which time no other activities could be performed in areas sharing the same ventilation system. This increased turn-around time" - Rod57 (talk) 22:26, 16 April 2017 (UTC)[reply]
The result of the move request was: not moved to the proposed title at this time, per the discussion below. Dekimasuよ! 15:51, 30 January 2020 (UTC)[reply]
Space Shuttle Orbital Maneuvering System → Orbital Maneuvering System – Unnecessary disambiguation, as "Orbital Maneuvering System" is enough and more widely used than "Space Shuttle Orbital Maneuvering System". Requesting to withdraw the nomination because of the unanimous opposition. Soumyabrata (talk • subpages) 17:52, 22 January 2020 (UTC)[reply]
The figures, despite from seemingly reliable sources, don't add up.
| Isp of 316 s | ve of 3100 m/s | ve = Isp*g0 |
| dv | 300 m/s | |
| Orbiter dry mass | 78,000 kg | |
| Orbiter wet mass, or gross take-off weight | 100-110,000 kg | depending on source |
| OMS fuel capacity | 21,660 kg | |
| Payload | 29,500 kg |
This means:
| wet mass | 129,000 kg | dry mass + payload + fuel |
| dry mass | 59,000 kg | wet mass - payload - fuel |
| dv | 565-750 m/s | dv = Isp * g0 * ln(m0/(m0-fuel)), for m0=129 and 100 tons, respectively |
What am I missing?
Andersenman (talk) 13:19, 4 February 2020 (UTC)[reply]
I feel this article should answer the question of why there was even a need to fit a separate OMS instead of using the main engines to perform its functions.--Cancun (talk) 11:50, 9 August 2020 (UTC)[reply]
A discussion is taking place to address the redirect Orbital maneuvering system. The discussion will occur at Wikipedia:Redirects for discussion/Log/2020 September 2#Orbital maneuvering system until a consensus is reached, and readers of this page are welcome to contribute to the discussion. Soumya-8974 talk contribs subpages 13:51, 2 September 2020 (UTC)[reply]
Other things to add - eg ref the OMS workbook :
