And I think the FRA would get involved in structural changes to an existing piece of rolling stock....
The point is that it would not be a structural change because the metal that is removed is not load bearing.
Amtrak is converting 20 Amfleet I café cars to coach cars. To do that, they are removing the punch out panels and inserting windows in the mid-section where the café service area was. Doubt if they are getting the FRA involved for structural testing. Makes a difference if the car was designed for the windows to be swappable with steel panels.
Not having seen the plans for the full bags I can't really make a realistic judgment (#1 question would be; is there a place to put windows without cutting the structural integrity of the car?) but the next time you ride any Amtrak piece of equipment, locomotives included, look at the embossment at the bottom of the window "FRA TYPE"
I have a CFR (Code of Federal Regs) but it is bigger than the Manhattan phone book and I don't have time to find the specific section on car integrity but do know it exists. Amtrak answers to the FRA and cannot go around cutting up or modifying cars without consulting at least the CFR which is the FRA's bible. In other words Amtrak can't go around modifying cars without conforming to FRA regs or they will have some inquizative visitors from the FRA.
Jay,
The baggage cars will be using the same basic Viewliner shell. That means that every cutout for a window will still be in the shell. In fact, as the shells roll off the assembly line anyone working it will not know if that particular shell is going to be a full bag, a bag/dorm, or a sleeper. The only shells that will be slightly different are the dining cars, which will have loading doors/emergency exits on both sides in middle of the car right at the end of the kitchen and the start of the seating area.
In the full bags, instead of installing glass in the window cutouts, they'll just install a metal slug or plate. Removing that plate at some future point would not affect the strutural integrity of the car. Heck even in the dorm/bags on the baggage end most of the window cutouts will be slugs instead of glass.