MBTA pass. cars

Discussion relating to commuter rail, light rail, and subway operations of the MBTA.

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MBTA pass. cars

Postby MBTA F40PH-2C 1050 » Fri Feb 25, 2005 11:25 pm

why are the MBTA passenger cars limited to 80 mph?
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Postby CSX Conductor » Fri Feb 25, 2005 11:28 pm

Other than the manufacturer's suggestion, no idea.
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Postby ST214 » Sat Feb 26, 2005 2:28 am

I don't know, but the 600's should not go that fast. When the brakes are applied at 80MPH, it makes one hell of a racket, and the cars start bouncing around. This behavior is absent on the 700's and 1700's.
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Postby MBTA F40PH-2C 1050 » Sat Feb 26, 2005 8:59 am

because i was reading on the Amtrak forum, that the New york area commuter rails, have the same single level cars as us and they run at 100 mph for MAS, and the Kawasaki's also can run 100 mph

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PostPosted: Fri Feb 25, 2005 1:37 pm Post subject: Reply with quote
What was the max operating speed of the UA Turbo in revenue service?

Quote:
It would be a big help if MBTA had equipment that was capable
of 100+ MPH speeds


Not to get too far off topic, but why is MBTA's current equipment limited to 80? The single level cars look similar to NJ Transit's 100 mph Comet coaches, the Kawasaki bilevels look identical to MARC's 100+ mph bilevel cars, and the diesels can certainly be geared for 100 mph as they are elsewhere.
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Postby AEM7AC920 » Sat Feb 26, 2005 9:15 am

I don't think a GP40MC and anything over 70 mixes will, especially with a set of doubles. :wink:
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Postby SnoozerZ49 » Sat Feb 26, 2005 9:04 pm

I have it from a very reputable source that the limit imposed on the speed that the MBTA's fleet can operate is based on testing done at the US DOT test center at Pueblo Colorado.

It has been determined through advanced scientific testing that bubble gum, bailing wire, super glue and spit can not withstand the "g" forces of any higher speeds.
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Postby SnoozerZ49 » Sat Feb 26, 2005 9:06 pm

One more point, what makes you think any of the "boat anchors' that the T calls engines could go any faster?
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Postby ST214 » Sat Feb 26, 2005 10:22 pm

Hey snoozer, they're all boat anchors except for the screamers!!! THe other F40's were great, until they rebuilt them.
Hoping for a rebirth of the Screamer fleet.
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Postby BC Eagle » Sat Feb 26, 2005 11:03 pm

My exposure to the commuter rail has been limited. When I have been on it, it hasn't seemed to me that the trains were going all that fast. On what lines do they get up to 80 mph?
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Postby CSX Conductor » Sun Feb 27, 2005 12:27 am

BC Eagle wrote:On what lines do they get up to 80 mph?


Only on the Attleboro/Providence Line. (plus the Franklin Stoughton & Needham when on the main between Back Bay & Readville).
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Postby StevieC48 » Sun Feb 27, 2005 2:52 am

CSX Conductor so the speed deamons are on the South Side correct? ;)
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Postby octr202 » Sun Feb 27, 2005 10:12 am

Don't the Old Colony lines have 79-mph sections?
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Postby CSX Conductor » Sun Feb 27, 2005 2:42 pm

octr202 wrote:Don't the Old Colony lines have 79-mph sections?


No, just referenced the MBCR Timetable to be accurate. The max on the Old Colony is 70MPH. Between Pearl & Plymouth on the Plymouth Line.....and between Pearl & Bay on the Middleboro Line (both lines has many lower speed restrictions at various points, but max is 70MPH)
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Postby BC Eagle » Sun Feb 27, 2005 11:59 pm

How fast do the trains get on the North Side? What is the max speed there?
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Postby typesix » Mon Feb 28, 2005 3:47 pm

Unless the T ordered a different gear ratio, F40s had a 103 mph gearing which was standard for F40s.
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