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	<id>https://www.usswolff.com/wiki/index.php?action=history&amp;feed=atom&amp;title=DY_20_class</id>
	<title>DY 20 class - Revision history</title>
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	<updated>2026-04-20T15:07:33Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.usswolff.com/wiki/index.php?title=DY_20_class&amp;diff=2330&amp;oldid=prev</id>
		<title>Thedrew: 1 revision imported</title>
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		<updated>2020-04-19T19:17:33Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
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				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:17, 19 April 2020&lt;/td&gt;
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		<author><name>Thedrew</name></author>
	</entry>
	<entry>
		<id>https://www.usswolff.com/wiki/index.php?title=DY_20_class&amp;diff=2329&amp;oldid=prev</id>
		<title>Thedrew: 1 revision</title>
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		<updated>2014-10-03T13:09:38Z</updated>

		<summary type="html">&lt;p&gt;1 revision&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{ShipSpecs&lt;br /&gt;
|image=&lt;br /&gt;
|name=DY-20&lt;br /&gt;
|category=Exploratory Sleeper vessel&lt;br /&gt;
|duration=6 years&lt;br /&gt;
|resupply=2 years&lt;br /&gt;
|refit=N/A&lt;br /&gt;
|crew=3&lt;br /&gt;
|officers=&lt;br /&gt;
|enlisted=&lt;br /&gt;
|marines=&lt;br /&gt;
|passengers=24&lt;br /&gt;
|evaccap=&lt;br /&gt;
|stardock=&lt;br /&gt;
|cruisevel=Sublight, Ion Drive powered&lt;br /&gt;
|maxvel=&lt;br /&gt;
|emervel=&lt;br /&gt;
|diameter=&lt;br /&gt;
|mainheight=&lt;br /&gt;
|overallheight=&lt;br /&gt;
|length=80.2m&lt;br /&gt;
|width=24.3m&lt;br /&gt;
|height=24.3m&lt;br /&gt;
|decks=2&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;The information contained on this page has not been accepted by Obsidian Fleet&amp;#039;s Research and Development department and is thus not an available ship class for a sim.&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
The DY-20 class starship was the first successful sleeper ship developed jointly by NASA and the ESA, with assistance from Chronowerx Corporation&amp;#039;s subsidiary, [[Yoyodyne Propulsion Systems|Yoyodyne Space Systems]]. Only six units of this class were produced before being phased out for the larger DY-60 class which was brought into service. The DY-20 was designed for short range exploration and passenger transfer, however they wound up being used mostly to found the first Human colony on the Moon, which was again a joint operation between the European Space Agency and the North American Space Agency.&lt;br /&gt;
&lt;br /&gt;
The first DY-20, the USS Washington was completed in Florida in 1990 and subsequently launched into space from Cape Canaveral where it then subsequently docked at the [[Spacedock One|first spacedock]] ever put into Earth Orbit, which had been designed specifically to facilitate the transfer of people and cargo from Earth, to the Moon. It was serviced almost entirely by &amp;quot;space planes&amp;quot; reusable craft which were able to land on conventional runways and enter orbit at most once a day.&lt;br /&gt;
&lt;br /&gt;
The DY-20 functioned for three years as the sole method of supplying the Lunar 1 Base, a role which was taken over by the new DY-60, a process which was unfortunately sped up by the loss of the ESV Berlin, the sixth and final DY-20 ship when it&amp;#039;s drive system malfunctioned and failed to stop, meaning that by the time the ship entered the Lunar atmosphere, it was unable to slow down enough to make a successful landing and ended up crashing into the surface of the Moon, killing the crew aboard her.&lt;br /&gt;
&lt;br /&gt;
==Ships of the class==&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|- bgcolor=&amp;quot;cornsilk&amp;quot; &lt;br /&gt;
|align=center colspan=6|&amp;#039;&amp;#039;&amp;#039;DY-20 ships&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
|- bgcolor=&amp;quot;#CCCCCC&amp;quot;&lt;br /&gt;
! Name !! Operating Authority !! Status&lt;br /&gt;
|-&lt;br /&gt;
| USS George Washington || NASA || Retired, currently stored in the Museum of Spaceflight, San Fransisco&lt;br /&gt;
|-&lt;br /&gt;
| ESV Europe || ESA || Retired, currently stored in the Museum of European Spaceflight, Brussels&lt;br /&gt;
|-&lt;br /&gt;
| USS Neil Armstrong || NASA || Decomissioned&lt;br /&gt;
|-&lt;br /&gt;
| ESV London || ESV || Decomissioned&lt;br /&gt;
|-&lt;br /&gt;
| USS Theodore Roosevelt || NASA || Decomissioned&lt;br /&gt;
|-&lt;br /&gt;
| ESV Berlin || ESV || Destroyed&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
[[Category:Ship class]] [[Category: Earth]]&lt;/div&gt;</summary>
		<author><name>Thedrew</name></author>
	</entry>
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