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Amtrak706

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Posts posted by Amtrak706

  1. 8 hours ago, RR503 said:

    The issue isn’t that today’s brakes are worse than before — they’re about the same; one of the first efforts post-WillyB was upping brake cylinder pressures so that train stopping distances conformed with previous standards — it’s that the signal system/train relationship as it existed pre-1995 was unsafe in many areas even at undegraded brake performance. That was the realization forced by the accident. 

    That is what many people have been lead to believe, but it’s not the whole picture. Brake mods in the 80s and early 90s were the real issue, not signal control lines and spacing. Take a look at this, it’s a good read and explains a lot of what I am talking about.

  2. The R68 propulsion discussion is fantastic to see happening. However, ideally I would like to see an analysis of the signal control lines and spacing from before trains’ brakes were modified in the early 90s, which is what eventually led to the Williamsburg crash. If it’s not considered “safe” to revert the trains’ performance to 1940s-90s design levels, maybe the brakes need to be reverted back to design specs as well (inshot valves, etc). The system ran fine that way for 50 years...

  3. On 1/1/2020 at 12:28 AM, Calvin said:

    207 St Yard (C)  [8 62 ft car train]:          

    - 1964 R32 passenger units: 3354-3355, 3360-3361, 3376-3377, 3380-3381, 3384-3385, 3388-3389, 3394-3397, 3400-3401, 3404-3407, 3410-3411, 3414-3417, 3424-3433, 3436-3443, 3446-3449, 3452-3453, 3460-3461, 3472-3473, 3476-3477, 3484-3485, 3488-3489, 3500-3501, 3512-3515, 3518-3519, 3522-3523, 3550-3551, 3574-3575, 3578-3579, 3586-3587, 3590-3591, 3606-3607, 3610-3611, 3614-3615, 3618-3619, 3624-3625, 3646-3647, 3654-3655, 3660-3661, 3664-3665, 3670-3673, 3682-3683, 3688-3689, 3698-3699, 3708-3709, 3714-3719, 3726-3733, 3736-3739, 3770-3775, 3778-3783, 3792-3793, 3798-3799, 3804-3807, 3810-3811, 3818-3823, 3828-3829, 3834-3835, 3840-3841, 3856-3857, 3864-3865, 3870-3873, 3876-3877, 3886-3889, 3894-3897, 3900-3901, 3912-3913, 3924-3925, 3928-3929, 3932-3933, 3938-3939

    Mixed Pairs: 3383/3890, 3419/3740, 3444/3777, 3445/3468, 3471/3658, 3520/3891, 3548/3593, 3621/3644, 3628/3669, 3650/3767 *Also paired on the (A) as 10-car trains

    What happened to 3454/3455, 3496/3497, and 3706/3707? Retired?

  4. 2 hours ago, danielhg121 said:

    Weren’t the slants kinda dangerous? The gaps between cars while crossing between them were pretty wide. But yea there was a way smaller fleet of 38’s. There wasn’t any problem with the 38’s as far as I remember, probably would’ve fared better than the 42’s. 

    No. The huge array of pantograph gates that were installed in the 70s fixed that problem. The R38 through R44 had carbon steel frames and roofs and were really falling apart towards the end. I remember seeing many cars with huge lengths of duct tape down the whole side of the roof. The R32s survived because they are entirely Budd shot-welded stainless steel, and the MK R42s because they were the least awful hybrid steel cars structurally and mechanically.

  5. 8 hours ago, BreeddekalbL said:

    I saw my first show time on the train a few days ago on the (E) surprisingly those dudes weren't clowns

    I can’t stand them on the (A). I’ve never seen them kick anyone in the face in almost 20 years but I still don’t trust them at all. They also seek out people that don’t look interested to try and get a fist bump. So patronizing, lol. And if you manage to dodge them and not get kicked in the head by 125 St, you still have to deal with the mariachi bands between 168 and 175. It can be a real zoo

  6. 1 hour ago, Missabassie said:

    Sounds like they're pushing them out before the new year. Still a tad lazy, delivering an incomplete product....

    How long could it possibly take to install number plates? It just seems like an odd choice for something to skip out on to save time.

  7. The type of metal used for the frame would not be visible. Despite their stainless steel carbodies, the R38, R40, R42, and R44 used LAHT carbon steel for their frames. The SI R44s are structurally the same as the NYCT ones, the frame rot was not as bad because the NYCT ones were hit much worse during the graffiti years and got lots of acid baths. They also ran on the A for most of their service lives and were exposed to a lot of salt water spray out in the Rockaways.

  8. 5 minutes ago, R32 3838 said:

    First group of R46's, it has been said to be 100 cars were built with regular steel frames vs stainless steel frames. 

     

    I didn't believe this ether since I actually like the R46's 

    Yes I know, the first time this was posted here I asked for a source. Hence why I said "again"

  9. On 8/31/2019 at 1:09 AM, RR503 said:

    As for CPW, most of those (though, IINM, not the ones around 59 St) were done when they resignalled that line in '89. Keeping folks at 40 helped them meet capacity targets. 

    I would highly doubt that capacity on CPW is any higher than it was as originally designed in 1932. Even today we still have not surpassed the high point in ridership during the 1940s, plus the trains’ acceleration and braking is much worse. Are you sure those “capacity targets” weren’t just an attempt to keep up with what was once standard?

  10. On 8/25/2019 at 9:11 PM, speedyracer90 said:

    If I remember correctly, that sign went up a few years before those timers were added around 2010-2011 (someone correct me if I'm wrong?). I think they also added the timers at B'way Junction, the curve around High Street, Grant Ave SB, and a few others along the 8th Avenue/Fulton Line around the same time. Maybe my memory is starting to get a bit hazy. I used to catch the RFW of R32/R38 (A)'s whenever I could from 2003 until about 2009 and do not recall those timers during that period.

    Interesting. Was there much of a difference in speed/runtime on the Manhattan side in that era as well, or were those timers earlier? I started riding the (A) around 2002, but I was still pretty young so I don’t really remember.

    On 8/25/2019 at 11:13 PM, RR503 said:

    Some fun (A) RFWs from the pre-timer era on Fulton express. It really was a fast railroad we lost.

    Indeed. And think about how much faster it was even on top of that back when the cars performed as designed. I think my favorite quote about this is from a 2001 SubTalk thread I found when I was first researching this issue many years ago:

     “Damned shame one of the best little railroads in the world has been turned into an amusement park ride.”

  11. It is interesting that pretty much all TA and other official literature pays no attention to the scope and impact of the "accleration mods" carried out on the whole fleet after the Williamsburg crash. This document seems to assume that the mods simply reverted the fleet back to the R1/9 performance that the signal system was largely designed around. It actually crippled the cars much harder than that and everyone seems to have just eaten the substantial change in speed and travel time over the past 25 years without much complaint.

  12. 4 hours ago, New Flyer Xcelsior said:

    There are R179 (A) sets in revenue service.

    No shit. Thanks for that insight.

    When a new set is getting prepped for entry into revenue service, it has to pass a simulated revenue test run which involves stopping at each station and opening the doors on the wrong side. There are also “R-179 TEST TRAIN” posters placed on the door windows in a futile attempt to get the public not to try and board the train once it stops. That is what I was referring to.

  13. I caught an R32 on the (A) today and saw some interesting stuff from the front window. There is a big yellow sign at Nostrand Av warning T/Os that the next station is a “fast station” and to start braking early. How long has this been there? It certainly doesn’t make any sense given the timers immediately before Utica. There is a relatively new looking GT35 sign for them, but the T/O took them at about 29 (you can see the speed indicator pretty easily through the hinges).

  14. There is a new 10 car R179 heading southbound on the (A) for a test run. Stopped at 145 and opened the doors on the wrong side at 2:15pm. Couldn’t get a pic since I went by it on a northbound (A) but the last car was 3272 if that tells anyone what set(s) it is.

  15. There is one R40 slant pair, one R40M pair, and one R42 pair preserved that run on the TOMM. There is also a mismatched pair of one R40M and one R42 that was preserved by RPC and is sitting in Coney Island Yard non-operational. This set was the result of the Williamsburg Bridge crash as the two cars’ original same-class partners were the two cars that crashed into each other.

  16. On 8/6/2019 at 12:50 AM, Calvin said:

    https://www.ttmg.org/insidersguide/new-york-mta-subway-roster-yard/?fbclid=IwAR3Zg0YYGmzPRUlxyA411JeRYtzmzwJdHuLRpmXqWVHDhtoFiBqN4zb9wM8

    Greetings, everyone. This month's roster is updated but in reference to the TTMG update

     

    R62A on the (6) is the same like before in total count: 445 with 1935- Livonia

    R46 5854-5861 is currently at Jamaica with R160B 8773-7 

    You have a few errors in there with car build dates. Here are the correct ones:

    R32: 1964-1965

    R44: 1971-1973

    R46: 1975-1978

    R68A: 1988-1989

    R143: 2001-2002

    R179: 2016-present

    R188: 2011-2016

  17. 1 hour ago, Lex said:

    In a nutshell, constant application and release of the brakes to bring the train to a halt (as opposed to one or two applications). Depending on the car, this could either be a nuisance or a significant delay while the brakes recharge (in order to keep them from failing).

    Think of it as turning the kitchen light on and off a few times within 10 seconds. It's much less effective than turning it on and keeping it that way until the 10 seconds pass, and you've just created needless wear on the switch.

    Yes, I understand the concept - I’m just not quite sure what “fan” refers to?

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