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2-12-4T - Wikipedia

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srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>relies largely or entirely on a <a href="/wiki/Wikipedia:Articles_with_a_single_source" title="Wikipedia:Articles with a single source">single source</a></b>.<span class="hide-when-compact"> Relevant discussion may be found on the <a href="/wiki/Talk:2-12-4T##" title="Talk:2-12-4T">talk page</a>. Please help <a class="external text" href="https://en.wikipedia.org/w/index.php?title=2-12-4T&amp;action=edit">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">introducing citations to additional sources</a>.<br /><small><span class="plainlinks"><i>Find sources:</i>&#160;<a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&amp;q=%222-12-4T%22">"2-12-4T"</a>&#160;–&#160;<a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&amp;q=%222-12-4T%22+-wikipedia&amp;tbs=ar:1">news</a>&#160;<b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&amp;q=%222-12-4T%22&amp;tbs=bkt:s&amp;tbm=bks">newspapers</a>&#160;<b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&amp;q=%222-12-4T%22+-wikipedia">books</a>&#160;<b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%222-12-4T%22">scholar</a>&#160;<b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%222-12-4T%22&amp;acc=on&amp;wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">August 2024</span>)</i></span></div></td></tr></tbody></table> <p>In <a href="/wiki/Whyte_notation" title="Whyte notation">Whyte notation</a> for the classification of <a href="/wiki/Steam_locomotive" title="Steam locomotive">steam locomotives</a> by <a href="/wiki/Wheel_arrangement" title="Wheel arrangement">wheel arrangement</a>, a <b>2-12-4</b> is a locomotive with one pair of unpowered <a href="/wiki/Leading_wheel" title="Leading wheel">leading wheels</a>, followed by six pairs of powered <a href="/wiki/Driving_wheel" title="Driving wheel">driving wheels</a>, and two pairs of unpowered <a href="/wiki/Trailing_wheel" title="Trailing wheel">trailing wheels</a>. While it would be possible to make a <a href="/wiki/Tender_(rail)" title="Tender (rail)">tender locomotive</a> of this type, all locomotives of this wheel arrangement were <a href="/wiki/Tank_locomotive" title="Tank locomotive">tank engines</a>. </p><p>Other equivalent classifications are: </p> <ul><li><a href="/wiki/UIC_classification" class="mw-redirect" title="UIC classification">UIC classification</a>: <b>1′F2′</b> (also known as German classification and <a href="/wiki/Italian_classification" class="mw-redirect" title="Italian classification">Italian classification</a>)</li> <li><a href="/wiki/European_classification" class="mw-redirect" title="European classification">European classification</a>: <b>1-6-2</b></li> <li><a href="/wiki/French_classification" class="mw-redirect" title="French classification">French classification</a>: <b>162</b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Bulgaria">Bulgaria</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=2-12-4T&amp;action=edit&amp;section=1" title="Edit section: Bulgaria"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There are only 20 <a href="/wiki/Standard_gauge" class="mw-redirect" title="Standard gauge">standard gauge</a> (<span class="nowrap">1,435&#160;mm</span> (<style data-mw-deduplicate="TemplateStyles:r1154941027">.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}</style><span class="nowrap">4&#160;ft&#160;<span class="frac">8<span class="sr-only">+</span><span class="num">1</span>&#8260;<span class="den">2</span></span>&#160;in</span>)) engines with this wheel arrangement that were built for and ran in Europe: <a href="/w/index.php?title=BD%C5%BD_class_46&amp;action=edit&amp;redlink=1" class="new" title="BDŽ class 46 (page does not exist)">class 46</a> of the <a href="/wiki/Bulgarian_State_Railways" title="Bulgarian State Railways">Bulgarian State Railways</a> (BDŽ). They were ordered by BDŽ and built according to its specification by two different manufacturers: 12 engines by <a href="/wiki/H._Cegielski_%E2%80%93_Pozna%C5%84" title="H. Cegielski – Poznań">H. Cegielski</a> in Poznań, Poland in 1931, and 8 by <a href="/wiki/Berliner_Maschinenbau" title="Berliner Maschinenbau">Berliner Maschinenbau</a> (Schwarzkopf) in Berlin, Germany in 1943. Although there is a major difference between the two batches—the first 12 engines are type 1′F2′&#160;h2Gt — tank-engine for freight service, two-cylinder system with simple steam expansion (Zwilling) with superheating, while the remaining 8 are 1′F2′&#160;h3Gt — 3-cylinder (Drilling)—all were put into the same class 46 and numbered 46.<small>01</small> – 46.<small>12</small> and 46.<small>13</small> – 46.<small>20</small>. They were designed to haul heavy coal trains on mountainous lines with gradients of about 2.67% (1 in 35.7) and more, and they coped with this hard task very well. Bulgarian railwaymen gave them nickname "Mother Bear" because they looked fat, clumsy and compact. These engines appear to be the most powerful steam locomotives in Europe. Two of them (46.03 two-cylinder and 46.13 three-cylinder) are preserved. The two-cylinder 46.03 has been restored to working order and made its maiden voyage on steam in May 2015. </p><p><br /> <b>Technical specifications:</b><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> </p> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:BDZ4603.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/78/BDZ4603.jpg/240px-BDZ4603.jpg" decoding="async" width="240" height="162" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/78/BDZ4603.jpg/360px-BDZ4603.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/78/BDZ4603.jpg/480px-BDZ4603.jpg 2x" data-file-width="1600" data-file-height="1082" /></a><figcaption>BDZ 46.03, load test on 26th May 2015 (By Ivo Radoev).</figcaption></figure> <table class="wikitable"> <tbody><tr> <td>Locomotive No. </td> <th>46.<small>01</small> – 46.<small>12</small> </th> <th>46.<small>13</small> – 46.<small>20</small> </th></tr> <tr> <td>Gauge, mm </td> <td>1,435 </td> <td>1,435 </td></tr> <tr> <td>Type (UIC) </td> <td>1′F2′&#160;h2Gt </td> <td>1′F2′&#160;h3Gt </td></tr> <tr> <td>Type (BDŽ) </td> <td>Тт&#160;1-6-2<sub>17</sub> </td> <td>Тт&#160;1-6-2<sub>18</sub> </td></tr> <tr> <td>Builder </td> <td><a href="/wiki/H._Cegielski_%E2%80%93_Pozna%C5%84" title="H. Cegielski – Poznań">Cegielski</a> </td> <td><a href="/wiki/Berliner_Maschinenbau" title="Berliner Maschinenbau">Berliner Maschinenbau</a> </td></tr> <tr> <td>Year </td> <td>1931 </td> <td>1943 </td></tr> <tr> <td>Steam pressure, kg/cm<sup>2</sup> </td> <td>16 </td> <td>16 </td></tr> <tr> <td>Superheater area, m<sup>2</sup> </td> <td>83.91 </td> <td>80 </td></tr> <tr> <td>Heating area, m<sup>2</sup> </td> <td>224.07 </td> <td>223.6 </td></tr> <tr> <td>Grate area, m<sup>2</sup> </td> <td>4.87 </td> <td>4.87 </td></tr> <tr> <td>Cylinders no. × dia. × stroke, mm </td> <td>2 × 700 × 700 </td> <td>3 × 550 × 650 </td></tr> <tr> <td>Driving wheels diameter, mm </td> <td>1,340 </td> <td>1,340 </td></tr> <tr> <td>Axleload, t </td> <td>17 </td> <td>18 </td></tr> <tr> <td>Adhesive weight, t </td> <td>101.7 </td> <td>108 </td></tr> <tr> <td>Total weight, t </td> <td>149.1 </td> <td>155.8 </td></tr> <tr> <td>Coal, t </td> <td>10 </td> <td>10 </td></tr> <tr> <td>Water, m<sup>3</sup> </td> <td>18 </td> <td>18 </td></tr> <tr> <td>Total length, m </td> <td>18.205 </td> <td>18.155 </td></tr> <tr> <td>Total height, m </td> <td>4.28 </td> <td>4.345 </td></tr> <tr> <td>Tractive effort, starting, kN </td> <td>381 </td> <td>360 </td></tr> <tr> <td>Tractive effort @ 20&#160;km/h, kN </td> <td>307.2 </td> <td>264.1 </td></tr> <tr> <td>Max speed, km/h </td> <td>65 </td> <td>65 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=2-12-4T&amp;action=edit&amp;section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist 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(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.steamlocomotive.com/locobase.php?country=Bulgaria&amp;wheel=2-12-4&amp;page=bs">"2-12-4 Locomotives in Bulgaria"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=2-12-4+Locomotives+in+Bulgaria&amp;rft_id=http%3A%2F%2Fwww.steamlocomotive.com%2Flocobase.php%3Fcountry%3DBulgaria%26wheel%3D2-12-4%26page%3Dbs&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3A2-12-4T" class="Z3988"></span></span> </li> </ol></div></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist 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0.25em"> <ul><li><a href="/wiki/0-2-2" title="0-2-2">0-2-2</a></li> <li><a href="/wiki/0-2-4" title="0-2-4">0-2-4</a></li> <li><a href="/wiki/2-2-0" title="2-2-0">2-2-0</a></li> <li><a href="/wiki/2-2-2" title="2-2-2">2-2-2</a></li> <li><a href="/wiki/2-2-4T" title="2-2-4T">2-2-4T</a></li> <li><a href="/wiki/4-2-0" title="4-2-0">4-2-0</a></li> <li><a href="/wiki/4-2-2" title="4-2-2">4-2-2</a></li> <li><a href="/wiki/4-2-4T" title="4-2-4T">4-2-4T</a></li> <li><a href="/wiki/6-2-0" title="6-2-0">6-2-0</a></li></ul> <ul><li><a href="/wiki/0-3-0" title="0-3-0">0-3-0</a> (monorail)</li></ul> <ul><li><a href="/wiki/0-4-0" title="0-4-0">0-4-0</a></li> <li><a href="/wiki/0-4-0%2B4" title="0-4-0+4">0-4-0+4</a></li> <li><a href="/wiki/0-4-2" title="0-4-2">0-4-2</a></li> <li><a href="/wiki/0-4-4T" title="0-4-4T">0-4-4T</a></li> <li><a href="/wiki/0-4-6T" title="0-4-6T">0-4-6T</a></li> <li><a href="/wiki/2-4-0" title="2-4-0">2-4-0</a></li> <li><a href="/wiki/2-4-2" title="2-4-2">2-4-2</a></li> <li><a href="/wiki/2-4-4T" title="2-4-4T">2-4-4T</a></li> <li><a href="/wiki/2-4-6T" title="2-4-6T">2-4-6T</a></li> <li><a href="/wiki/4-4-0" title="4-4-0">4-4-0</a></li> <li><a href="/wiki/4-4-2_(locomotive)" title="4-4-2 (locomotive)">4-4-2</a></li> <li><a href="/wiki/4-4-4" title="4-4-4">4-4-4</a></li> <li><a href="/wiki/4-4-6" title="4-4-6">4-4-6</a></li></ul> <ul><li><a href="/wiki/0-6-0" title="0-6-0">0-6-0</a></li> <li><a href="/wiki/0-6-2" title="0-6-2">0-6-2</a></li> <li><a href="/wiki/0-6-4T" title="0-6-4T">0-6-4T</a></li> <li><a href="/wiki/0-6-6T" title="0-6-6T">0-6-6T</a></li> <li><a href="/wiki/2-6-0" title="2-6-0">2-6-0</a></li> <li><a href="/wiki/2-6-2" title="2-6-2">2-6-2</a></li> <li><a href="/wiki/2-6-4" title="2-6-4">2-6-4</a></li> <li><a href="/wiki/2-6-6T" title="2-6-6T">2-6-6T</a></li> <li><a href="/wiki/4-6-0" title="4-6-0">4-6-0</a></li> <li><a href="/wiki/4-6-2" title="4-6-2">4-6-2</a></li> <li><a href="/wiki/4-6-4" title="4-6-4">4-6-4</a></li></ul> <ul><li><a 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href="/wiki/2-10-4" title="2-10-4">2-10-4</a></li> <li><a href="/wiki/4-10-0" title="4-10-0">4-10-0</a></li> <li><a href="/wiki/4-10-2" title="4-10-2">4-10-2</a></li></ul> <ul><li><a href="/wiki/0-12-0" title="0-12-0">0-12-0</a></li> <li><a href="/wiki/2-12-0" title="2-12-0">2-12-0</a></li> <li><a href="/wiki/2-12-2" title="2-12-2">2-12-2</a></li> <li><a class="mw-selflink selflink">2-12-4</a></li> <li><a href="/wiki/Union_Pacific_9000_Class" title="Union Pacific 9000 Class">4-12-2</a></li></ul> <ul><li><a href="/wiki/Soviet_locomotive_class_AA20" title="Soviet locomotive class AA20">4-14-4</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="background:#edd4bd;;width:1%"><a href="/wiki/Divided_drive_(locomotive)" title="Divided drive (locomotive)">Divided drive</a> and <br /><a href="/wiki/Duplex_locomotive" title="Duplex locomotive">Duplex</a> engine types</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/0-2-2-0" title="0-2-2-0">0-2-2-0</a></li> <li><a href="/wiki/2-2-2-0" title="2-2-2-0">2-2-2-0</a></li> <li><a href="/wiki/2-2-2-2" title="2-2-2-2">2-2-2-2</a></li> <li><a href="/wiki/2-2-4-0T" title="2-2-4-0T">2-2-4-0T</a></li> <li><a href="/wiki/4-2-2-0" title="4-2-2-0">4-2-2-0</a></li></ul> <ul><li><a href="/wiki/2-4-6-2" title="2-4-6-2">2-4-6-2</a></li> <li><a href="/wiki/4-4-4-4" title="4-4-4-4">4-4-4-4</a></li> <li><a href="/wiki/6-4-4-6" title="6-4-4-6">6-4-4-6</a></li> <li><a href="/wiki/4-4-6-4" title="4-4-6-4">4-4-6-4</a></li> <li><a href="/wiki/4-6-4-4" title="4-6-4-4">4-6-4-4</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="background:#edd4bd;;width:1%"><a href="/wiki/Articulated_locomotive" title="Articulated locomotive">Articulated locomotives</a> <br /><a href="/wiki/Fairlie_locomotive" title="Fairlie locomotive">Fairlie</a>, <a href="/wiki/Meyer_locomotive" title="Meyer locomotive">Meyer</a> <br />and <a href="/wiki/Garratt_locomotive" title="Garratt locomotive">Garratt</a> types</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/0-4-0%2B0-4-0" title="0-4-0+0-4-0">0-4-0+0-4-0</a></li> <li><a href="/wiki/2-4-0%2B0-4-2" title="2-4-0+0-4-2">2-4-0+0-4-2</a></li> <li><a href="/wiki/2-4-2%2B2-4-2" title="2-4-2+2-4-2">2-4-2+2-4-2</a></li> <li><a href="/wiki/4-4-2%2B2-4-4" title="4-4-2+2-4-4">4-4-2+2-4-4</a></li></ul> <ul><li><a href="/wiki/0-6-0%2B0-6-0" title="0-6-0+0-6-0">0-6-0+0-6-0</a></li> <li><a href="/wiki/0-6-2%2B2-6-0" class="mw-redirect" title="0-6-2+2-6-0">0-6-2+2-6-0</a></li> <li><a href="/wiki/2-6-0%2B0-6-2" title="2-6-0+0-6-2">2-6-0+0-6-2</a></li> <li><a href="/wiki/2-6-2%2B2-6-2" title="2-6-2+2-6-2">2-6-2+2-6-2</a></li> <li><a href="/wiki/4-6-0%2B0-6-4" title="4-6-0+0-6-4">4-6-0+0-6-4</a></li> <li><a href="/wiki/4-6-2%2B2-6-4" title="4-6-2+2-6-4">4-6-2+2-6-4</a></li> <li><a href="/wiki/4-6-4%2B4-6-4" title="4-6-4+4-6-4">4-6-4+4-6-4</a></li></ul> <ul><li><a href="/wiki/2-8-0%2B0-8-2" title="2-8-0+0-8-2">2-8-0+0-8-2</a></li> <li><a href="/wiki/2-8-2%2B2-8-2" title="2-8-2+2-8-2">2-8-2+2-8-2</a></li> <li><a href="/wiki/4-8-0%2B0-8-4" title="4-8-0+0-8-4">4-8-0+0-8-4</a></li> <li><a href="/wiki/4-8-2%2B2-8-4" title="4-8-2+2-8-4">4-8-2+2-8-4</a></li> <li><a href="/wiki/4-8-4%2B4-8-4" title="4-8-4+4-8-4">4-8-4+4-8-4</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="background:#edd4bd;;width:1%"><a href="/wiki/Articulated_locomotive" title="Articulated locomotive">Articulated locomotives</a> <br /><a href="/wiki/Mallet_locomotive" title="Mallet locomotive">Mallet</a> types</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/0-4-4-0" title="0-4-4-0">0-4-4-0</a></li> <li><a href="/wiki/0-4-4-2" title="0-4-4-2">0-4-4-2</a></li> <li><a href="/wiki/2-4-4-0" title="2-4-4-0">2-4-4-0</a></li> <li><a href="/wiki/2-4-4-2" title="2-4-4-2">2-4-4-2</a></li></ul> <ul><li><a href="/wiki/0-6-6-0" title="0-6-6-0">0-6-6-0</a></li> <li><a href="/wiki/2-6-6-0" title="2-6-6-0">2-6-6-0</a></li> <li><a href="/wiki/2-6-6-2" title="2-6-6-2">2-6-6-2</a></li> <li><a href="/wiki/2-6-6-4" title="2-6-6-4">2-6-6-4</a></li> <li><a href="/wiki/2-6-6-6" title="2-6-6-6">2-6-6-6</a></li> <li><a href="/wiki/2-6-8-0" title="2-6-8-0">2-6-8-0</a></li> <li><a href="/wiki/4-4-6-2" title="4-4-6-2">4-4-6-2</a></li> <li><a href="/wiki/4-6-6-2" title="4-6-6-2">4-6-6-2</a></li> <li><a href="/wiki/4-6-6-4" title="4-6-6-4">4-6-6-4</a></li></ul> <ul><li><a href="/wiki/0-8-6-0" class="mw-redirect" title="0-8-6-0">0-8-6-0</a></li> <li><a href="/wiki/0-8-8-0" title="0-8-8-0">0-8-8-0</a></li> <li><a href="/wiki/2-8-8-0" title="2-8-8-0">2-8-8-0</a></li> <li><a href="/wiki/2-8-8-2" title="2-8-8-2">2-8-8-2</a></li> <li><a href="/wiki/2-8-8-4" title="2-8-8-4">2-8-8-4</a></li> <li><a href="/wiki/4-8-8-2" title="4-8-8-2">4-8-8-2</a></li> <li><a href="/wiki/4-8-8-4" title="4-8-8-4">4-8-8-4</a></li></ul> <ul><li><a href="/wiki/2-10-10-2" title="2-10-10-2">2-10-10-2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="background:#edd4bd;;width:1%"><a href="/wiki/Articulated_locomotive" title="Articulated locomotive">Articulated locomotives</a> <br /><a href="/wiki/Triplex_locomotive" title="Triplex locomotive">Triplex</a> and other <a href="/wiki/Multiplex_locomotive" title="Multiplex locomotive">Multiplex</a> types</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/2-8-8-8-2" class="mw-redirect" title="2-8-8-8-2">2-8-8-8-2</a></li> <li><a href="/wiki/2-8-8-8-4" title="2-8-8-8-4">2-8-8-8-4</a></li></ul> <ul><li><a href="/wiki/Multiplex_locomotive#United_States" title="Multiplex locomotive">2-8-8-8-8-2</a></li> <li><a href="/wiki/Multiplex_locomotive#Belgium" title="Multiplex locomotive">0-6-2+2-4-2-4-2+2-6-0</a></li> <li><a href="/wiki/Multiplex_locomotive#Super-Garratt" title="Multiplex locomotive">2-6-6-2+2-6-6-2</a></li></ul> <ul><li><a href="/wiki/Multiplex_locomotive#Quintuplex_locomotives" title="Multiplex locomotive">2-8-8-8-8-8-2</a></li> <li><a href="/wiki/Multiplex_locomotive#Quintuplex_locomotives" title="Multiplex locomotive">2-10-10-10-10-10-2</a></li></ul> <ul><li><a href="/wiki/Multiplex_locomotive#Hexaplex_locomotive" title="Multiplex locomotive">2-4-4-2+2-8-8-2+2-4-4-2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="background:#edd4bd;;width:1%"><a href="/wiki/Articulated_locomotive" title="Articulated locomotive">Articulated locomotives</a><br /><a href="/wiki/Engerth_locomotive" title="Engerth locomotive">Engerth</a> types</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/0-4-4T" title="0-4-4T">0-4-4</a></li> <li><a href="/wiki/0-4-6" class="mw-redirect" title="0-4-6">0-4-6</a></li></ul> <ul><li><a href="/wiki/2-6-4" title="2-6-4">2-6-4</a></li> <li><a href="/wiki/0-6-4" class="mw-redirect" title="0-6-4">0-6-4</a></li> <li><a href="/wiki/Co-Bo" title="Co-Bo">0-6-4-0</a></li></ul> <ul><li><a href="/wiki/0-8-4T" title="0-8-4T">0-8-4</a></li> <li><a href="/wiki/0-8-6" class="mw-redirect" title="0-8-6">0-8-6</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="background:#edd4bd;;width:1%"><a href="/wiki/Geared_locomotive" class="mw-redirect" title="Geared locomotive">Geared locomotives</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Shay_locomotive" title="Shay locomotive">Shay</a></li> <li><a href="/wiki/Climax_locomotive" title="Climax locomotive">Climax</a></li> <li><a href="/wiki/Heisler_locomotive" title="Heisler locomotive">Heisler</a></li> <li><a href="/wiki/Willamette_locomotive" title="Willamette locomotive">Willamette</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="background:#edd4bd;"><div> <ul><li>Other notation forms: <a href="/wiki/AAR_wheel_arrangement" title="AAR wheel arrangement">AAR</a></li> <li><a href="/wiki/Swiss_locomotive_and_railcar_classification" title="Swiss locomotive and railcar classification">Swiss</a></li> <li><a href="/wiki/UIC_classification_of_locomotive_axle_arrangements" title="UIC classification of locomotive axle arrangements">UIC</a></li></ul> </div></td></tr></tbody></table></div> <style data-mw-deduplicate="TemplateStyles:r1012311289">.mw-parser-output .asbox{position:relative;overflow:hidden}.mw-parser-output .asbox table{background:transparent}.mw-parser-output .asbox p{margin:0}.mw-parser-output .asbox p+p{margin-top:0.25em}.mw-parser-output .asbox-body{font-style:italic}.mw-parser-output .asbox-note{font-size:smaller}.mw-parser-output .asbox .navbar{position:absolute;top:-0.75em;right:1em;display:none}</style><div role="note" class="metadata plainlinks asbox stub"><table role="presentation"><tbody><tr class="noresize"><td><span typeof="mw:File"><a href="/wiki/File:Stephenson%27s_Rocket_drawing.jpg" class="mw-file-description"><img alt="Stub icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Stephenson%27s_Rocket_drawing.jpg/40px-Stephenson%27s_Rocket_drawing.jpg" decoding="async" width="40" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Stephenson%27s_Rocket_drawing.jpg/60px-Stephenson%27s_Rocket_drawing.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Stephenson%27s_Rocket_drawing.jpg/80px-Stephenson%27s_Rocket_drawing.jpg 2x" data-file-width="531" data-file-height="371" /></a></span></td><td><p class="asbox-body">This steam locomotive-related article is a <a href="/wiki/Wikipedia:Stub" 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