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</style><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above" style=";">VR Class Hr1</th></tr><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"></span><div class="infobox-caption">Hr1 1021 with Witte-type <a href="Smoke_deflectors" title="Smoke deflectors">smoke deflectors</a></div></td></tr><tr><td colspan="2" class="infobox-full-data"><table class="infobox collapsible" style="background-color: transparent; color: var( --color-base, #202122 ); border-collapse:collapse; border-spacing:0px; border:none; width:100%; margin:0px; font-size:100%; clear:none; float:none"><tbody><tr><th colspan="2" class="infobox-above" style="background-color: #eeb47f; font-size:100%; padding-left:3em;">Type and origin</th></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Power type</th><td class="infobox-data"><a href="Steam_locomotive" title="Steam locomotive">Steam</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Builder</th><td class="infobox-data"><a href="Lokomo" title="Lokomo">Lokomo</a> Oy and <a href="Tampella" title="Tampella">Tampella</a> Oy</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Build date</th><td class="infobox-data">1937–1957</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;"><span class="nowrap">Total produced</span></th><td class="infobox-data">22</td></tr></tbody></table></td></tr><tr><td colspan="2" class="infobox-full-data"><table class="infobox collapsible" style="background-color: transparent; color: var( --color-base, #202122 ); border-collapse:collapse; border-spacing:0px; border:none; width:100%; margin:0px; font-size:100%; clear:none; float:none"><tbody><tr><th colspan="2" class="infobox-above" style="background-color: #eeb47f; font-size:100%; padding-left:3em;">Specifications</th></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Configuration:<br></th><td class="infobox-data"></td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;"> • <a href="AAR_wheel_arrangement" title="AAR wheel arrangement">AAR</a></th><td class="infobox-data"><a href="4-6-2" title="4-6-2">4-6-2</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;"><a href="Track_gauge" title="Track gauge">Gauge</a></th><td class="infobox-data"><a href="5_ft_and_1520_mm_gauge_railways" title="5 ft and 1520 mm gauge railways"><span class="nowrap">1,524 mm</span></a> (<span class="nowrap">5 ft</span>)</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;"><a href="Driving_wheel" title="Driving wheel">Driver</a> dia.</th><td class="infobox-data">1,900 mm (6 ft 3 in)</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Length</th><td class="infobox-data">22.2 m (72 ft 10 in)</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Loco weight</th><td class="infobox-data">155 tonnes (153 long tons; 171 short tons) with tender</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Boiler pressure</th><td class="infobox-data">15 bar (1,500 kPa; 220 psi)</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;"><a href="Cylinder_(engine)" title="Cylinder (engine)">Cylinders</a></th><td class="infobox-data">Two, outside</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;"><a href="Valve_gear" title="Valve gear">Valve gear</a></th><td class="infobox-data"><a href="Walschaerts_valve_gear" title="Walschaerts valve gear">Walschaerts</a></td></tr></tbody></table></td></tr><tr><td colspan="2" class="infobox-full-data"><table class="infobox collapsible" style="background-color: transparent; color: var( --color-base, #202122 ); border-collapse:collapse; border-spacing:0px; border:none; width:100%; margin:0px; font-size:100%; clear:none; float:none"><tbody><tr><th colspan="2" class="infobox-above" style="background-color: #eeb47f; font-size:100%; padding-left:3em;">Performance figures</th></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Maximum speed</th><td class="infobox-data">110 km/h (68 mph)</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;"><a href="Tractive_effort" title="Tractive effort">Tractive effort</a></th><td class="infobox-data">114 kN (25,630 lbf)</td></tr></tbody></table></td></tr><tr><td colspan="2" class="infobox-full-data"><table class="infobox collapsible" style="background-color: transparent; color: var( --color-base, #202122 ); border-collapse:collapse; border-spacing:0px; border:none; width:100%; margin:0px; font-size:100%; clear:none; float:none"><tbody><tr><th colspan="2" class="infobox-above" style="background-color: #eeb47f; font-size:100%; padding-left:3em;">Career</th></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Operators</th><td class="infobox-data"><a href="Finnish_State_Railways" class="mw-redirect" title="Finnish State Railways">VR</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">First run</th><td class="infobox-data">1937</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Withdrawn</th><td class="infobox-data">1972 returned to service due to <a href="1973_oil_crisis" title="1973 oil crisis">oil crisis</a> withdrawn in 1974</td></tr><tr><th scope="row" class="infobox-label" style="padding-top:0.225em; line-height:1.15em; padding-right:0.75em; width:36%;">Disposition</th><td class="infobox-data">six scrapped, remainder preserved</td></tr></tbody></table></td></tr></tbody></table>

<p>The <b>Hr1 class</b> (original classification <b>P1</b>) was the largest passenger express steam locomotive built in <a href="Finland" title="Finland">Finland</a>. Twenty-two were built between the years 1937–1957. They were numbered 1000–1021.

</p><p>In the 1930s, there was a need for faster and heavier express trains in Finland, and the <a href="VR_Class_Hv1" title="VR Class Hv1">Hv1</a>–Hv3 classes were not powerful enough to fill the need. <a href="Lokomo" title="Lokomo">Lokomo</a> Oy in <a href="Tampere" title="Tampere">Tampere</a> built first two prototypes, and after successful trials 20 more were built.

Most of the locomotives were fitted with Wagner-type smoke deflectors, but the last two, which were equipped with <a href="Roller_bearings" class="mw-redirect" title="Roller bearings">roller bearings</a>, had Witte-type deflectors.

</p><p>The class's nickname was <span title="Finnish-language text"><i lang="fi">"Ukko-Pekka"</i></span>, meaning approximately "(respected) Grandpa Pekka", after the President of Finland <a href="Pehr_Evind_Svinhufvud" title="Pehr Evind Svinhufvud">Pehr Evind Svinhufvud</a>.

</p><p>The Hr1 was built for coal firing, but during the coal shortage after the war in 1945, birch wood was used as fuel. Larger chimneys needed for extinguishing wood sparks were temporarily fitted.

</p><p>The Hr1s were the most important express steam locomotive and could justifiably be called the "flagships" of VR until 1963, when diesel locomotives started to replace steam. Their use ended officially in 1971, but two Hr1s equipped with roller bearings were brought back to use for a short time in the spring of 1974. One engine, 1005, was a participant in the worst peacetime railroad accident in Finland, the Kuurila accident, in 1957. The engine is preserved at <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a>.

</p><p>Hr1's sister locomotive was the <a href="VR_Class_Tr1" title="VR Class Tr1">Tr1</a> class, otherwise similar, but with 2-8-2 wheel arrangement and smaller diameter drivers for freight train use.

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<div class="mw-heading mw-heading2"><h2 id="Preservation">Preservation</h2></div>

<p>The following are preserved:

</p>

<ul><li>1000 <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a></li>

<li>1001 <a href="Hyvink%C3%A4%C3%A4" title="Hyvinkää">Hyvinkää</a></li>

<li>1002–1005 <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a>, 1003 <a href="Cutaway_drawing" title="Cutaway drawing">sectioned</a> to show the inside of a <a href="Steam_locomotive" title="Steam locomotive">steam locomotive</a></li>

<li>1008 <a href="Acton%2C_Suffolk" title="Acton, Suffolk">Acton, Suffolk</a>, England</li>

<li>1010 <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a></li>

<li>1011 <a href="Otanm%C3%A4ki" title="Otanmäki">Otanmäki</a></li>

<li>1012 <a href="Oulainen" title="Oulainen">Oulainen</a></li>

<li>1014 <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a></li>

<li>1016 named "Lady Patricia" on a Private Railway near <a href="Windsor%2C_Berkshire" title="Windsor, Berkshire">Windsor, Berkshire</a>, United Kingdom<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li>

<li>1019, 1020 <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a></li>

<li>1021 <a href="Riihim%C3%A4ki" title="Riihimäki">Riihimäki</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="Gallery">Gallery</h2></div>

<div class="gallerytext"> Hr1 1002 at <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a></div>

</li>

<div class="gallerytext"> Hr1 1003 at <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a></div>

</li>

<div class="gallerytext"> Hr1 1003 at <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a></div>

</li>

<div class="gallerytext"> Hr1 1003 at <a href="Haapam%C3%A4ki" title="Haapamäki">Haapamäki</a></div>

</li>

<div class="gallerytext">Finnish Hr1 class <a href="4-6-2" title="4-6-2">4-6-2</a> steam locomotive No 1009 at <a href="Pasila" title="Pasila">Pasila</a></div>

</li>

<div class="gallerytext">Hr1 1009 at <a href="Lappeenranta" title="Lappeenranta">Lappeenranta</a></div>

</li>

<div class="gallerytext"> A 1944 Postage stamp depicting a Finnish train with a steam locomotive; the nickname of this heavy locomotive was "Ukko-Pekka"</div>

</li>

<div class="gallerytext"> Hr1 1009 at <a href="Toijala" title="Toijala">Toijala</a> railway station 1953</div>

</li>