INDman Posted January 10, 2010 Share #26 Posted January 10, 2010 As BERA members we actually can claim ownership of 1689 And a bunch of other nice cars that make all kinds of cool sounds. Link to comment Share on other sites More sharing options...
Y2Julio Posted January 10, 2010 Share #27 Posted January 10, 2010 As BERA members we actually can claim ownership of 1689 I put claim on the BU cars Link to comment Share on other sites More sharing options...
INDman Posted January 10, 2010 Share #28 Posted January 10, 2010 I put claim on the BU cars Oh do you rookie? Just keep dem paws off my SMEE. Link to comment Share on other sites More sharing options...
Y2Julio Posted January 10, 2010 Share #29 Posted January 10, 2010 As to the NTT whining. Newer trains run on alternating current, but the third rail delivers direct current; inverters chop it into frequencies that can be used by the alternating current motors, which is what causes that unique sound. Link to comment Share on other sites More sharing options...
T to Dyre Avenue Posted January 11, 2010 Share #30 Posted January 11, 2010 If you know about Alternate Current (AC) Traction Motors, the current constantly changes direction at a certain rate and the sound you hear is the base current (600v DC) feeding into the induction mechanism (to produce 625v to run the wheels). Note that only AC Traction Motors make special sounds, while DC Traction Motors do not. The whirl you hear in WH DC Motors is a metallurgical quirk (metal grinding sound) and has nothing to do with currents feeding into the motors themselves. Good to know. Unfortunately, I don't know very much about AC or DC traction motors. Link to comment Share on other sites More sharing options...
DOB2RTO Posted January 11, 2010 Share #31 Posted January 11, 2010 I've only known WH Traction Motors to have a metallurgical quirk when paired with a Westinghouse Propulsion system, which means that you're probably referring to the Bombardier R62A. Love that sound from the Bombardier R62A....... Those new trains are just as noisy as the old ones, they have that loud "wooooooooooooooo eeeeeeeeeeee iiiiiiiiiii eeeeeeeeee" when they start moving Love that sound from the Kawasaki R62...... Let me be honest, I hate it when Westinghouse 1447F or J Traction Motors make that airplane noise. I like the regular, natural noise. Love that sound from both the R62 and R62A, when they get up to speed........ Link to comment Share on other sites More sharing options...
SubwayGuy Posted January 11, 2010 Share #32 Posted January 11, 2010 I put claim on the BU cars Heh...you hafta learn to operate 'em first B) Link to comment Share on other sites More sharing options...
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