[PRCo] PCC

[Jim Holland]

Here!!   Here!!!
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Hear!!   Hear!!!
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Play It Again, Sam!!!!!!!
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"""It is obsolete, but well proven."""
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Jim
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Boris Cefer wrote:
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> It is obsolete, but well proven. It has been in service all over the 
> world for more than 70 years and there is not much to improve on it. 
> It reached the perfect phase of development many years back while all 
> the modern semiconductor propulsion systems have relatively short 
> career and they age far more rapidly, being pushed out by a new design 
> almost every day.
>
> B
>
> ----- Original Message -----
> "Fred Schneider" <fwschneider at comcast.net> wrote::
>
>> Those motors have not be made in years. Just because New York City 
>> has always specified obsolete technology doesn't been the rest of the 
>> industry is so far behind the curve. The New York City Transit 
>> Authority has always had a reputation for buying obsolete 
>> hardware.       I would say that DC motors are rapidly being pushed 
>> out of the business by AC motor because the AC motors require very 
>> limited maintenance but I would need to get someone else to tabulate 
>> the numbers for me.
>>
>> But my point was the entire PCC control package is obsolete technology.
>