2 20ft containers, each on its own trailer.
Is this part of the conversation about two 20' containers on two chassis towed by one truck? Or is it about two 20' containers on a single chassis?
Ed
SD60MAC9500 BaltACD CSSHEGEWISCH I would guess that the 28' container was an attempt at a variant with increased flexibility of the trailer usually found in double bottoms. Were any container chassis constructed that would facilitate the hauling of double 28 footers? I have never seen any container chassis that could be doubled over the road. Here in Michigan we do. It's not common but every now and then you can see double 20's.
BaltACD CSSHEGEWISCH I would guess that the 28' container was an attempt at a variant with increased flexibility of the trailer usually found in double bottoms. Were any container chassis constructed that would facilitate the hauling of double 28 footers? I have never seen any container chassis that could be doubled over the road.
CSSHEGEWISCH I would guess that the 28' container was an attempt at a variant with increased flexibility of the trailer usually found in double bottoms.
Were any container chassis constructed that would facilitate the hauling of double 28 footers?
I have never seen any container chassis that could be doubled over the road.
Here in Michigan we do. It's not common but every now and then you can see double 20's.
Haven't seen any leaving or going to the Port of Baltimore.
Never too old to have a happy childhood!
CSSHEGEWISCHI would guess that the 28' container was an attempt at a variant with increased flexibility of the trailer usually found in double bottoms.
I would guess that the 28' container was an attempt at a variant with increased flexibility of the trailer usually found in double bottoms.
Here's a link to a photo of a 28' container in service in 2011:
http://www.rrpicturearchives.net/showPicture.aspx?id=2596965
NOT as a container, as such. But still, in use.
I think there were only 100 of the 56' well cars built. They do show up; I've taken pictures of a couple.
NittanyLion 7j43k There also have been, and may still be around, 28' containers for domestic use. I don't remember the last time I actually saw a 28 footer.
7j43k There also have been, and may still be around, 28' containers for domestic use.
I don't remember the last time I actually saw a 28 footer.
28' containers have long been out of service... Roughly 26 years now... A failed experiment involving; BN, ATSF, and UPS. BN America, and UPS were the only operators of 28' containers. However the 56' well cars created for those containers are still in service.
7j43kThere also have been, and may still be around, 28' containers for domestic use.
What the two versions have in common is using the same dimensions and methods for interlocking the containers. The dimensions are based on the 20' and 40' containers. There also have been, and may still be around, 28' containers for domestic use. Those are supplied with the standard locking connections as the 20', with an overhang off the front (the 45's and 53's have symmetrical overhang front and back).
Note that it is common to see a 53' domestic container stacked on top of an international on double-stack cars.
There is nothing precluding an international container being used in domestic service, except that it can bulk out too soon. In fact, once international containers are removed from the ship, they ARE essentially domestic containers.
Going the other direction is near impossible. Container ships cannot accept our domestic containers below decks. And stacking them on top is very limited and a PITA.
This tends to be true for the international 45's, but less of a problem as the container width stays the same. 45' containers cannot be stowed below deck.
I believe also that most/some domestic containers can't be stacked more than two-high. That is also limiting on a ship.
There also have been 48' domestic containers, preceding the 53's. There might still be some around.
IIRC, the first domestic containers weren't stackable because they weren't build to the same standard. They could only be "topload". That doesn't seem to be the case anymore.
The only differences are gross weight and dimensions.
Domestic containers are:
53' x 8'2" x 9'6" with a maximum GWR of 67,200 lbs.
ISO Containers are:
20' x 8' x 8'6" Dry/Flatrack/Tanktainer
40' x 8' x 8'6" also come in High Cube 9'6" Dry/Flatrack/Refrigerated
45' x 8' x 8'6" also come in High Cube 9'6" Dry/Refrigerated
Most ISO containers have a maximum GWR of 67,055 lbs.
I know their lengths are different. International containers are 40' or 20' long. Domestic containers are 53' long.
I frequently see references to international and domestic containers. Are these two types of containers physically different from each other? Or, are the writers of articles just referring to how the containers are being deployed, not physical differences?
It sure seems like it would be simpler if they were both the same.
Still in training.
Our community is FREE to join. To participate you must either login or register for an account.