Amfleet Specifications

Amtrak Unlimited Discussion Forum

Help Support Amtrak Unlimited Discussion Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Andrew

OBS Chief
Joined
May 3, 2013
Messages
614
I have read that the width of Amtrak's Amfleet coaches are 10 and a half feet wide.

Does this refer to the vertical width of the coaches or the diagonal width?
 
I have read that the width of Amtrak's Amfleet coaches are 10 and a half feet wide.

Does this refer to the vertical width of the coaches or the diagonal width?
Amfleet cars are 10' 6" wide, outside to outside, at the widest point of the tubular shape (just below the window line).
 
I have read that the width of Amtrak's Amfleet coaches are 10 and a half feet wide.

Does this refer to the vertical width of the coaches or the diagonal width?
Verticle width is height. What would diagonal width even mean? The cars are round.
 
Last edited by a moderator:
it is not as hard to misinterpret as one might imagine, one of the most common things we deal with, television sets, actually state screen width as a diagonal. That is obviously (to us) not the case here, but I can see the notion....
 
it is not as hard to misinterpret as one might imagine, one of the most common things we deal with, television sets, actually state screen width as a diagonal. That is obviously (to us) not the case here, but I can see the notion....
Yeah, for basically all screens, the standard (including for phones and computers) measurement is on diagonal. And I suppose someone could theoretically measure the 'diagonal width' of a Horizon or Superliner...but an Amfleet?
 
Last edited by a moderator:
I'm just not going to attack someone for asking a question that might be sensible to them, but not to me, or for that matter most of us. That calls for me to try and read into their mind or question their motivation. There are people here I disagree with on substantive issues on a regular basis, but I'd still buy them a beer if they walked into the bar.....
 
it is not as hard to misinterpret as one might imagine, one of the most common things we deal with, television sets, actually state screen width as a diagonal. That is obviously (to us) not the case here, but I can see the notion....
Yeah, for basically all screens, the standard (including for phones and computers) measurement is on diagonal.
No we don't, we refer to screen size. I've never heard screen size referred to as "width", precisely because it isn't width.

I have asked (and been asked), questions like "how wide is that 56" TV" before, when trying to ascertain if a screen will fit somewhere.
 
Now that 16:9 shapes of TV have taken over from 4:3 the most common expression is \rapidly becoming "class" rather than size or width. I don't know your age, but unless you are relatively young, crt based tv's and monitors and even early flats used "width measured diagonally" as a common descriptor. I can't say I've heard it for phones, though. Probably comes from a gov't reg to try and create a common point for measure, since screen shapes varied.
 
But Class is not going to help me figure out whether it will fit in the space I have for it. For that the width, height and depth still remains important irrespective of what marketing gobbledegook the sellers prefer to use.
 
The numbers that really count are actual dimensions and weight. But that doesn't change what is out there. Those numbers and expressions exist, even if only marginally useful. There are plenty of online tables to translate diagonal to actual width. They probably shouldn't have to exist, but they are there for a reason.
 
Screen size measured on the diagonal is a perfectly fine way (if odd and archaic) to compare sizes.

Can’t say I’ve ever cared to look at a generic table, if you are concerned about fitment, the spec sheet for the specific model(s) is the only thing worthwhile.

Even more troubling these days is the trend for some TVs to put feet at the bottom corners instead of in the center, and not provide a way for one to tell how far apart they are.
 
How many 70" class vertical width soundbars can I fit within the Amfleet loading gauge?
Diagonally
default_tongue.png
 
Believe all HDTV screens are now a 16:9 ratio. so a little math will get the horizontal and vertical dimensions of the screen. Then add the borders in ( my sides and top are just over 1" ) bottom ~ 3 ". Will that math help ?
 
Believe all HDTV screens are now a 16:9 ratio. so a little math will get the horizontal and vertical dimensions of the screen. Then add the borders in ( my sides and top are just over 1" ) bottom ~ 3 ". Will that math help ?
That would work. It's a pain in the neck but it works. So I guess (just for the display dimensions) a 50" screen is about 43.6" x 24.5".

So for a screen that is 50" diagonally, you would do it as:

  • a2 + b2 = c2
  • a2 + b2 = 502
  • (16x)2 + (9x)2 = 502 (16:9 ratio)
  • 256x2 + 81x2 = 337x2 = 2500
  • x2 = 2500/337
  • x = 7.42
  • 16x = 43.6 (width), 9x = 24.5 (height)
I don't want to do that for every TV I look at.
 
Last edited by a moderator:
Of course, you could just look at the published specs, good manufacturers and good vendors websites list dimensions, weight, mounting info and the like, often with or without stand.

So to shamelessly slide back towards the Amfleet, its shape does not make use of all of the space that the loading gauge would allow, so people don't always realize it is full width. Because of straighter sides and a slightly higher roofline a car like a horizon might seem much less closed in, even though it is a bit narrower at its widest point. Even the larger windows of the AM2 compared to the AM1 help.
 
The Amfleets (or more accurately the Metroliners) were designed to resemble airplane cabins, with its tube shape and tiny windows. Because the Metroliners were marketed as faster than flying, Amtrak and Budd figured they should feel like an airplane. Additionally, a lot of people through rocks at train windows back then, so smaller was safer.

Then when the Metroliners EMUs failed, Budd already had the tooling and facilities in place to produce cars of a very similar design, and created the Amfleet. My point is that Amfleets have a pretty weird, outdated design that really doesnt make sense anymore, which definitely can cause a fair bit of confusion when talking about the cars space and dimensions.
 
Last edited by a moderator:
. My point is that Amfleets have a pretty weird, outdated design that really doesnt make sense anymore, which definitely can cause a fair bit of confusion when talking about the cars space and dimensions.
Exactly the V-1 and V-2 designs increase the inside volume somewhat. More importantly passengers who are walking thru the cars will not perceive the closing in feeling of the circular shell near their eyes.
 
Back
Top