How Fast is that ye olde ship?

<font class="Apple-style-span" face="arial, helvetica, sans-serif" size="2"><div style="font-size: 10px; background-color: #ffffff; font: normal normal normal 13px/1.3 Verdana, Arial, sans-serif; text-align: left; line-height: normal; padding: 0px; margin: 0px"><font style="font-family: Verdana, Arial, Helvetica, sans-serif" face="arial, helvetica, sans-serif" size="2" class="Apple-style-span">Okay you all know I have been plugging away at old TSR stuff and some of it involves space ships of old...</font><div style="font-family: Verdana, Arial, Helvetica, sans-serif"><font face="arial, helvetica, sans-serif" size="2" class="Apple-style-span"><br /></font></div><div style="font-family: Verdana, Arial, Helvetica, sans-serif"><font face="arial, helvetica, sans-serif" size="2" class="Apple-style-span">So I am working on a crazy combined timeline and in rereading my notes and I suddenly found myself wondering how fast where some of these ships and if they had Artificial Gravity how that would effect acceleration and deceleration...</font></div><div style="font-family: Verdana, Arial, Helvetica, sans-serif"><font face="arial, helvetica, sans-serif" size="2" class="Apple-style-span"><br /></font></div><div style="font-family: Verdana, Arial, Helvetica, sans-serif"><font face="arial, helvetica, sans-serif" size="2" class="Apple-style-span">For example: <span class="Apple-style-span" style="line-height: 24px">2288 CE OTC: Warden completed; trials and loading begin for 45-year voyage to Xi Ursae Majoris double-star system. (Before The Dark Years, Dragon 88)</span></font></div><div style="font-family: Verdana, Arial, Helvetica, sans-serif"><span class="Apple-style-span" style="line-height: 24px"><font face="arial, helvetica, sans-serif" size="2" class="Apple-style-span"><br /></font></span></div><div style="font-family: Verdana, Arial, Helvetica, sans-serif"><span class="Apple-style-span" style="line-height: 24px"><font face="arial, helvetica, sans-serif" size="2" class="Apple-style-span">My understanding is Xi Ursae Majoris is about 30 light years away, so that is 1 light year traveled for every 1.5 Earth years. Not sure but I think that is around .67% of the speed of light, but that is not taking acceleration or deceleration into account.</font></span></div><div style="font-family: Verdana, Arial, Helvetica, sans-serif"><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif; line-height: 24px; font-size: small"><br /></span></div><div style="font-family: Verdana, Arial, Helvetica, sans-serif"><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif; line-height: 24px; font-size: small">So how fast could a ship accelerate with Artificial Gravity? Normally we would not go faster than 1G in Knight Hawk so I am wondering if the ship's system would be set up to decrease and increase Artificial Gravity as needed to counter the effects but the ship would still not want to go faster than 1G acceleration for passenger safety... does that sound right?</span></div><div style="font-family: Verdana, Arial, Helvetica, sans-serif"><span class="Apple-style-span" style="line-height: 24px"><font face="arial, helvetica, sans-serif" size="2" class="Apple-style-span"><br /></font></span></div><div><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica, sans-serif; line-height: 24px"><font size="2" class="Apple-style-span"><font face="arial, helvetica, sans-serif" class="Apple-style-span"></font><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span">2104 CE OTC: The Three Suns, the first Human manned interstellar spacecraft, launched toward the Alpha Centauri system. (Before The Dark Years, Dragon 88)<o:p></o:p></font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span"></font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span">2120 CE OTC: Three Suns arrives at Alpha Centauri, establishes first extra-solar Human colonies at Gagarin, Armstrong, Greenwood, and Sorokin. (Before The Dark Years, Dragon 88)<o:p></o:p></font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span">So the Three Suns traveled 16 years over about 4.367 light years, so that is roughly 1 light year equals about 4 years of travel.</font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span"></font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span">2132 CE OTC: The Humanity launched for Tau Ceti system. (Before The Dark Years, Dragon 88)<o:p></o:p></font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span">Tau Ceti is 12 light years away... so maybe 48 years about? As I did not find an arrival time for Tau Ceti.</font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span">I am assuming the way the dates are listed we are observing the dilated time and not time on the ship...</font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span"><br /></font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span"></font></p><p class="MsoList" style="margin-left: 0in; text-indent: 0in"><font face="arial, helvetica, sans-serif" class="Apple-style-span">2047 CE OTC: Columbus, Magellan, and Marco Polo unmanned Terran interstellar probes launched from Terra orbit. (Before The Dark Years, Dragon 88)<o:p></o:p></font></p><p class="MsoList" style="margin-left: 0in; text-indent: 0in"><font face="arial, helvetica, sans-serif" class="Apple-style-span"></font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span">2061 CE OTC: Terran probe Columbus reaches Alpha Centauri and maps local planetary systems. (Before The Dark Years, Dragon 88) <o:p></o:p></font></p><p class="MsoBodyText"><font face="arial, helvetica, sans-serif" class="Apple-style-span">So 14 years of travel to go about 4 light years so 3.5 years pass for every 1 light year.</font></p></font></span></div></div></font><span style="font-family: arial, helvetica, sans-serif; line-height: 24px; font-size: small" class="Apple-style-span">2072 CE OTC: Terran probe Magellan reaches Tau Ceti; discovers terraformable planet (Gaea). (Before The Dark Years, Dragon 88)</span><font class="Apple-style-span" face="arial, helvetica, sans-serif" size="2"><span style="font-family: Verdana, Arial, Helvetica, sans-serif; line-height: 24px" class="Apple-style-span"> <br /></span></font><span style="font-family: arial, helvetica, sans-serif; line-height: 24px; font-size: small" class="Apple-style-span">So 20 years travel time to go 12 light years so 1.67 years per light year.</span><font class="Apple-style-span" face="arial, helvetica, sans-serif" size="2"></font><span style="font-family: Verdana, Arial, Helvetica, sans-serif; line-height: 24px; font-size: small" class="Apple-style-span"> </span><div><font class="Apple-style-span" face="arial, helvetica, sans-serif" size="2"></font><span style="font-family: arial, helvetica, sans-serif; line-height: 24px; font-size: small" class="Apple-style-span">I am thinking Marco Polo is implied to have headed to Xi Ursae Majoris but the probes are all traveling at different speeds which makes not a whole lot of sense if they are all based on the same design... </span><font class="Apple-style-span" face="arial, helvetica, sans-serif" size="2"></font><span style="font-family: Verdana, Arial, Helvetica, sans-serif; line-height: 24px; font-size: small" class="Apple-style-span"> </span></div><div><span style="font-size: small" class="Apple-style-span"><font face="arial, helvetica, sans-serif" class="Apple-style-span"><br /></font></span><span style="font-family: arial, helvetica, sans-serif; line-height: 24px; font-size: small" class="Apple-style-span">2109 CE OTC: Thorium fusion propulsion system perfected by Humans and goes into system-wide use. (Before The Dark Years, Dragon 88) I am guessing this is what the interstellar ships where using. </span></div><div><span style="font-family: arial, helvetica, sans-serif; line-height: 24px; font-size: small" class="Apple-style-span">I am wondering about this, insight and thoughts?</span><font class="Apple-style-span" face="arial, helvetica, sans-serif" size="2"><span style="line-height: 24px" class="Apple-style-span"><br /></span><div style="font-size: 10px; background-color: #ffffff; font: normal normal normal 13px/1.3 Verdana, Arial, sans-serif; text-align: left; line-height: normal; padding: 0px; margin: 0px"><div><span class="Apple-style-span" style="line-height: 24px"><font size="2" class="Apple-style-span"><p style="font-family: Verdana, Arial, Helvetica, sans-serif" class="MsoBodyText"> </p></font></span></div></div><div style="font-size: 10px; background-color: #ffffff; font: normal normal normal 13px/1.3 Verdana, Arial, sans-serif; text-align: left; line-height: normal; padding: 0px; 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