https://wiki.kerbalspaceprogram.com/api.php?hidemyself=1&hidebots=1&days=30&limit=50&target=Template%3ATechTree&action=feedrecentchanges&feedformat=atomKerbal Space Program Wiki - Changes related to "Template:TechTree" [en]2024-03-19T09:35:38ZRelated changesMediaWiki 1.29.0https://wiki.kerbalspaceprogram.com/index.php?title=RoveMax_Model_M1&diff=106443&oldid=93176RoveMax Model M12024-03-12T02:18:48Z<p>Change usage note to reflect rebalancing of TR-2L weight back in 1.2. Note power draw may need correcting for all wheels.</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Usage ==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Usage ==</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The <del class="diffchange diffchange-inline">Model </del>M1 <del class="diffchange diffchange-inline">was once </del>the <del class="diffchange diffchange-inline">fastest </del>wheel <del class="diffchange diffchange-inline">available</del>, <del class="diffchange diffchange-inline">but the </del>[[TR-2L Ruggedized Vehicular Wheel]] is <del class="diffchange diffchange-inline">lighter</del>, <del class="diffchange diffchange-inline">more </del>energy<del class="diffchange diffchange-inline">-efficient</del>, <del class="diffchange diffchange-inline">faster </del>and <del class="diffchange diffchange-inline">more </del>impact<del class="diffchange diffchange-inline">-resistant</del>, <del class="diffchange diffchange-inline">making it </del>the <del class="diffchange diffchange-inline">superior choice for most situations</del>.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The M1 <ins class="diffchange diffchange-inline">is situated between </ins>the <ins class="diffchange diffchange-inline">small, fragile [[RoveMax Model S2|S2 </ins>wheel<ins class="diffchange diffchange-inline">]] and the large</ins>, <ins class="diffchange diffchange-inline">ruggedized </ins>[[TR-2L Ruggedized Vehicular Wheel<ins class="diffchange diffchange-inline">|TR-2L</ins>]]<ins class="diffchange diffchange-inline">. It </ins>is <ins class="diffchange diffchange-inline">about halfway between the two in weight</ins>, energy <ins class="diffchange diffchange-inline">consumption, speed, stress tolerance</ins>, and impact <ins class="diffchange diffchange-inline">resistance</ins>, <ins class="diffchange diffchange-inline">and its braking torque is considerably closer to that of </ins>the <ins class="diffchange diffchange-inline">TR-2L</ins>. <ins class="diffchange diffchange-inline">It also appears between the two </ins>in <ins class="diffchange diffchange-inline">the </ins>[[<ins class="diffchange diffchange-inline">Technology tree|tech tree</ins>]]<ins class="diffchange diffchange-inline">, at level 7 rather than S2's level 5 or </ins>the TR-2L<ins class="diffchange diffchange-inline">'s level </ins>8.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">However, </del>in [[<del class="diffchange diffchange-inline">Career</del>]] <del class="diffchange diffchange-inline">Mode </del>the TR-2L <del class="diffchange diffchange-inline">does require unlocking [[Advanced Motors]] to access, which is a Level </del>8 <del class="diffchange diffchange-inline">[[Science]] and a dead-end, with no Science options requiring it as a prerequisite in the Stock game. This may mean that [[Career]] Mode players who prioritise other science areas will use the M1 for some considerable time</del>.</div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>While active, the RoveMax Model M1 wheel drains 1.0 [[Electric Charge]] per second (3600 E/hr).</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>While active, the RoveMax Model M1 wheel drains 1.0 [[Electric Charge]] per second (3600 E/hr).</div></td></tr>
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</table>Anaxagorashttps://wiki.kerbalspaceprogram.com/index.php?title=CR-7_R.A.P.I.E.R._Engine&diff=106441&oldid=106357CR-7 R.A.P.I.E.R. Engine2024-03-07T16:44:20Z<p><span dir="auto"><span class="autocomment">Air-breathing</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=== Air-breathing ===</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=== Air-breathing ===</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Like other jet engines, the air-breathing mode only works in the atmospheres of [[Kerbin]] or [[Laythe]]. The air-breathing mode has lower specific impulse than the other jets, though still <del class="diffchange diffchange-inline">a </del>order of magnitude higher than <del class="diffchange diffchange-inline">most </del>rocket engines. On the other hand, it delivers better performance than the [[J-X4 "Whiplash" Turbo Ramjet Engine]] at high speeds (~1,000 m/s and higher) and altitudes (~17,000 m and higher), making it a good choice for high-speed atmospheric flight. Its top speed is ~2,100 m/s in Kerbin's atmosphere (Mach 6.2). Its most fuel-efficient flight profile is Mach 3.6 at 17,600 m altitude.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Like other jet engines, the air-breathing mode only works in the atmospheres of [[Kerbin]] or [[Laythe]]. The air-breathing mode has lower specific impulse than the other jets, though still <ins class="diffchange diffchange-inline">an </ins>order of magnitude higher than <ins class="diffchange diffchange-inline">any stock </ins>rocket engines. On the other hand, it delivers better performance than the [[J-X4 "Whiplash" Turbo Ramjet Engine]] at high speeds (~1,000 m/s and higher) and altitudes (~17,000 m and higher), making it a good choice for high-speed atmospheric flight. Its top speed is ~2,100 m/s in Kerbin's atmosphere (Mach 6.2). Its most fuel-efficient flight profile is Mach 3.6 at 17,600 m altitude.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=== Closed-cycle ===</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=== Closed-cycle ===</div></td></tr>
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</table>Pie Guyhttps://wiki.kerbalspaceprogram.com/index.php?title=LV-N_%22Nerv%22_Atomic_Rocket_Motor&diff=106385&oldid=106350LV-N "Nerv" Atomic Rocket Motor2024-03-02T05:51:10Z<p>better explained its lack of usefulness as a lander engine</p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 05:51, 2 March 2024</td>
</tr><tr><td colspan='4' style='text-align: center;' class='diff-multi' lang='en'>(One intermediate revision by the same user not shown)</td></tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l8" >Line 8:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When outside the atmosphere, the Nerv has superb efficiency, with a vacuum [[Specific impulse|I<sub>sp</sub>]] of 800&nbsp;s: higher than any other [[liquid fuel engine]] and the second highest in the game overall, beaten only by the [[Dawn]] ion engine. Compared to the Dawn, it has 150x greater thrust per second of [[Isp|I<sub>sp</sub>]]. Its combination of comparatively high thrust and high efficiency makes it a popular choice for interplanetary stages.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When outside the atmosphere, the Nerv has superb efficiency, with a vacuum [[Specific impulse|I<sub>sp</sub>]] of 800&nbsp;s: higher than any other [[liquid fuel engine]] and the second highest in the game overall, beaten only by the [[Dawn]] ion engine. Compared to the Dawn, it has 150x greater thrust per second of [[Isp|I<sub>sp</sub>]]. Its combination of comparatively high thrust and high efficiency makes it a popular choice for interplanetary stages.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The Nerv has a [[thrust-to-weight ratio]] of approximately 2, the lowest of all liquid engines. <del class="diffchange diffchange-inline">For this reason, </del>it <del class="diffchange diffchange-inline">is </del>a very poor choice for <del class="diffchange diffchange-inline">propulsion in small spacecraft (such as skycranes and small probes)</del>, <del class="diffchange diffchange-inline">despite its high vacuum specific impulse</del>. Its [[Isp|I<sub>sp</sub>]] and thrust while in atmosphere is incredibly poor; at Kerbin sea level, its thrust-to-weight ratio is below 1 and thus prohibits first-stage rocket use.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The Nerv has a [[thrust-to-weight ratio]] of approximately 2, the lowest of all liquid engines. <ins class="diffchange diffchange-inline">This makes </ins>it a very poor choice for <ins class="diffchange diffchange-inline">large landers</ins>, <ins class="diffchange diffchange-inline">or other craft that will need to move large masses against strong gravity</ins>. Its [[Isp|I<sub>sp</sub>]] and thrust while in atmosphere is incredibly poor; at Kerbin sea level, its thrust-to-weight ratio is below 1 and thus prohibits first-stage rocket use<ins class="diffchange diffchange-inline">. For these reasons, the Nerv finds its niche in orbital and interplanetary maneuvering of larger crafts that can't afford to use the extremely low-thrust Dawn engine</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The engine is quite long, being almost exactly the same length as a Mainsail engine. Nerv engines on a landing stage require some interesting structure designs to get the landing gear low enough to clear the bottom of the engine.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The engine is quite long, being almost exactly the same length as a Mainsail engine. Nerv engines on a landing stage require some interesting structure designs to get the landing gear low enough to clear the bottom of the engine.</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* The "Nerv" nickname is likely a reference to [[w:NERVA|NERVA]], or "Nuclear Engine for Rocket Vehicle Application", a NASA program to create a nuclear thermal rocket.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* The "Nerv" nickname is likely a reference to [[w:NERVA|NERVA]], or "Nuclear Engine for Rocket Vehicle Application", a NASA program to create a nuclear thermal rocket.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* The description of this part may be a reference to Douglas Adams' ''Hitchhiker's Guide to the Galaxy'' series, in which the Earth is described as "mostly harmless".</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* The description of this part may be a reference to Douglas Adams' ''Hitchhiker's Guide to the Galaxy'' series, in which the Earth is described as "mostly harmless".</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* The Nerv's use of liquid fuel, rather than hydrogen, as its propellant suggests that the true chemical identity of LiquidFuel is methane; methane is used both in combustive rocket engines in real life, and is also an attractive option as a nuclear-thermal rocket propellant.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Changes ==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Changes ==</div></td></tr>
</table>Pie Guyhttps://wiki.kerbalspaceprogram.com/index.php?title=CR-7_R.A.P.I.E.R._Engine&diff=106357&oldid=99872CR-7 R.A.P.I.E.R. Engine2024-02-29T17:31:08Z<p>shortened overly long misspelling explanation in lead</p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 17:31, 29 February 2024</td>
</tr><tr><td colspan='4' style='text-align: center;' class='diff-multi' lang='en'>(One intermediate revision by the same user not shown)</td></tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5" >Line 5:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>This is one of the first stock engine which has multiple nozzles incorporated into one part (four in this case).</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>This is one of the first stock engine which has multiple nozzles incorporated into one part (four in this case).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>This is the first engine which has two different manufacturers. Prior to [[0.24]] <del class="diffchange diffchange-inline">one of </del>the <del class="diffchange diffchange-inline">manufacturers seems to be misspelled. Instead of </del>[[:Category:Rockomax Conglomerate|Rockomax Conglomerate]] an <del class="diffchange diffchange-inline">''</del>o<del class="diffchange diffchange-inline">'' was missing attributing </del>it <del class="diffchange diffchange-inline">to the </del>Rockmax Conglomerate<del class="diffchange diffchange-inline">. However, the description text used the common spelling and the manufacturer entry was fixed in 0.24</del>.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>This is the first engine which has two different manufacturers. Prior to [[0.24]]<ins class="diffchange diffchange-inline">, </ins>the <ins class="diffchange diffchange-inline">"</ins>[[:Category:Rockomax Conglomerate|Rockomax Conglomerate]]<ins class="diffchange diffchange-inline">" in its description was misspelled (missing </ins>an o<ins class="diffchange diffchange-inline">, making </ins>it <ins class="diffchange diffchange-inline">"</ins>Rockmax Conglomerate<ins class="diffchange diffchange-inline">")</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Performance and usage ==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Performance and usage ==</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l15" >Line 15:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=== Air-breathing ===</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=== Air-breathing ===</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Like other jet engines, the air-breathing mode only works in the atmospheres of [[Kerbin]] or [[Laythe]]. The air-breathing mode has lower specific impulse than the other jets, though still a order of magnitude higher than most rocket engines. On the other hand, it delivers better performance than the [[J-X4 "Whiplash" Turbo Ramjet Engine]] at high speeds (~<del class="diffchange diffchange-inline">1000 </del>m/s and higher) and altitudes (~17,000 m and higher), making it a good choice for high-speed atmospheric flight. <del class="diffchange diffchange-inline">Top </del>speed is ~2,100 m/s in <del class="diffchange diffchange-inline">kerbins </del>atmosphere (<del class="diffchange diffchange-inline">mach </del>6.2)</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Like other jet engines, the air-breathing mode only works in the atmospheres of [[Kerbin]] or [[Laythe]]. The air-breathing mode has lower specific impulse than the other jets, though still a order of magnitude higher than most rocket engines. On the other hand, it delivers better performance than the [[J-X4 "Whiplash" Turbo Ramjet Engine]] at high speeds (~<ins class="diffchange diffchange-inline">1,000 </ins>m/s and higher) and altitudes (~17,000 m and higher), making it a good choice for high-speed atmospheric flight. <ins class="diffchange diffchange-inline">Its top </ins>speed is ~2,100 m/s in <ins class="diffchange diffchange-inline">Kerbin's </ins>atmosphere (<ins class="diffchange diffchange-inline">Mach </ins>6.2)<ins class="diffchange diffchange-inline">. Its most fuel-efficient flight profile is Mach 3.6 at 17,600 m altitude.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=== Closed-cycle ===</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>=== Closed-cycle ===</div></td></tr>
</table>Pie Guyhttps://wiki.kerbalspaceprogram.com/index.php?title=LV-N_%22Nerv%22_Atomic_Rocket_Motor&diff=106350&oldid=102573LV-N "Nerv" Atomic Rocket Motor2024-02-29T14:53:09Z<p><span dir="auto"><span class="autocomment">Usage: </span> compared it to the <a href="/wiki/Dawn" class="mw-redirect" title="Dawn">Dawn</a>, gave approximate TWR number, rewording</span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 14:53, 29 February 2024</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6" >Line 6:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Unlike other rocket engines, the Nerv consumes '''only liquid fuel'''. As such, a Nerv-powered craft should make use of liquid fuel fuselages (like the [[Mk1 Liquid Fuel Fuselage]]), which contain only liquid fuel and no oxidizer. Alternatively, rocket fuel tanks with the oxidizer removed can be used, although this results in an extremely poor mass ratio.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Unlike other rocket engines, the Nerv consumes '''only liquid fuel'''. As such, a Nerv-powered craft should make use of liquid fuel fuselages (like the [[Mk1 Liquid Fuel Fuselage]]), which contain only liquid fuel and no oxidizer. Alternatively, rocket fuel tanks with the oxidizer removed can be used, although this results in an extremely poor mass ratio.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>When outside the atmosphere, the Nerv has <del class="diffchange diffchange-inline">a </del>superb efficiency, with a vacuum [[Specific impulse|I<sub>sp</sub>]] of 800&nbsp;s: higher than any other [[liquid fuel engine]]. <del class="diffchange diffchange-inline">This remarkable </del>efficiency makes it <del class="diffchange diffchange-inline">quite </del>popular for <del class="diffchange diffchange-inline">upper </del>stages<del class="diffchange diffchange-inline">, as it is ideal for interplanetary travel</del>.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>When outside the atmosphere, the Nerv has superb efficiency, with a vacuum [[Specific impulse|I<sub>sp</sub>]] of 800&nbsp;s: higher than any other [[liquid fuel engine<ins class="diffchange diffchange-inline">]] and the second highest in the game overall, beaten only by the [[Dawn]] ion engine. Compared to the Dawn, it has 150x greater thrust per second of [[Isp|I<sub>sp</sub></ins>]]. <ins class="diffchange diffchange-inline">Its combination of comparatively high thrust and high </ins>efficiency makes it <ins class="diffchange diffchange-inline">a </ins>popular <ins class="diffchange diffchange-inline">choice </ins>for <ins class="diffchange diffchange-inline">interplanetary </ins>stages.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">However, the </del>Nerv has <del class="diffchange diffchange-inline">low thrust and </del>a <del class="diffchange diffchange-inline">very high mass, giving it the worst </del>[[thrust-to-weight ratio]] of all liquid engines. For this reason, it is a very poor choice for propulsion in small spacecraft (such as skycranes and small probes), despite its high vacuum specific impulse. Its [[Isp|I<sub>sp</sub>]] while in atmosphere is <del class="diffchange diffchange-inline">also quite </del>poor, <del class="diffchange diffchange-inline">making it not recommended for operation within atmospheres or for landings on larger bodies</del>.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The </ins>Nerv has a [[thrust-to-weight ratio]] <ins class="diffchange diffchange-inline">of approximately 2, the lowest </ins>of all liquid engines. For this reason, it is a very poor choice for propulsion in small spacecraft (such as skycranes and small probes), despite its high vacuum specific impulse. Its [[Isp|I<sub>sp</sub>]] <ins class="diffchange diffchange-inline">and thrust </ins>while in atmosphere is <ins class="diffchange diffchange-inline">incredibly </ins>poor<ins class="diffchange diffchange-inline">; at Kerbin sea level</ins>, <ins class="diffchange diffchange-inline">its thrust-to-weight ratio is below 1 and thus prohibits first-stage rocket use</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">It </del>is quite long, being almost exactly the same length as a Mainsail engine. Nerv engines on a landing stage require some interesting structure designs to get the landing gear low enough to clear the bottom of the engine.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The engine </ins>is quite long, being almost exactly the same length as a Mainsail engine. Nerv engines on a landing stage require some interesting structure designs to get the landing gear low enough to clear the bottom of the engine.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Product description ==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Product description ==</div></td></tr>
</table>Pie Guy