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Talgo Designed Locomotive - 501 Calamity

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<div class="heading" style="color:#333333;font-size:12px;font-weight:bold;font-style:italic;font-family:'Open Sans', Helvetica, Arial, sans-serif;">Overmod wrote the following post 2 hours ago:</div> <div class="content" style="line-height:18px;margin:20px 0px;color:#222222;font-family:'Open Sans', Helvetica, Arial, sans-serif;font-size:14px;"> <p style="margin:1em 0px;"> </p> <div class="quote-header"> </div> <blockquote class="quote" style="margin:1em 40px;border:1px dotted #999999;padding:8px;"> <div class="quote-user">VOLKER LANDWEHR</div> <div class="quote-content">The derailment curve speed limit is posted as P-30 and T-30. That leads to the conclusion that the tilting system is inactive at 30 mph.</div> </blockquote> <div class="quote-footer"> </div> <p style="margin:1em 0px;"> </p> <p style="margin:1em 0px;">Leads to no such thing: it reflects the fact that the curve has a 'hard' 30mph speed limit for geometry reasons, as we have established, and anything going around it cannot exceed that speed.  <strong>Quote end</strong></p> <p style="margin:1em 0px;"><span style="font-family:arial, helvetica, sans-serif;font-size:12pt;">That is nonsense. The speed limits in curves are there to protect passengers and loading. This limiting lateral acceleration is much lower than that for tipping rolling stock. As someone, I think 7j43k, calculated an F9 would have tipped at 68 mph.</span></p> <p style="margin:1em 0px;"><span style="font-family:arial, helvetica, sans-serif;font-size:12pt;">The Talgo tilt up to 3.5° I think. I have looked at the Bombardier data sheet of the Talgo XXI power car and found no mention of any tilting.</span></p> <p style="margin:1em 0px;"><span style="font-family:arial, helvetica, sans-serif;font-size:12pt;">[quote user="Overmod"]It is not as difficult as you may think to lower a passenger locomotive: take the FM Speed Merchants or the LRC as a starting point, and those both used conventional diesel prime movers. [/quote]</span></p> <p style="margin:1em 0px;"><span style="font-family:arial, helvetica, sans-serif;font-size:12pt;">The LCR has a height of 12'-11'', the Siemens Charger a height of 12'-6''. You don't have to get the roof down. You have to get the CG down and means you have to lower the floor considerably so that it is far beneath the wheel tops.</span></p> <p style="margin:1em 0px;"><span style="font-family:arial, helvetica, sans-serif;font-size:12pt;">When you look in the Cascade Talgo broschure there is a picture showing curve speed limits P-65 and T-75 for one curve. For 10 mph difference you don't need a tilting locomotive.<br />Regards, Volker</span></p> </div>
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