Happy Holidays
Day nine, and today we have Three Impact Demonstration Cars. These are repaints of the G-TraX 40ft Steel Boxcars.
kb_christmas_day_9.jpg
I've always been fascinated by these 'transparent' boxcars ever since I received one as a Christmas present as a child in the 1960's.
As best as I can determine, a number of railroads built a few of these cars to to study the effects of impact forces on cargo and to demonstrate to switching crews, as well as shippers and customers, how damaging coupling impacts at higher speeds can be when operating trains.
Over the years, I've found a number of images in books, and later on internet, that show a variety of railroads employed these cars for research and promotions:
The ATSF car featured the unusual "New 3-D" logo. An article from Railroad magazine offered the following information:
"Through the Plexiglass sidings, employees can view the consequences of Improper car handling or failure to properly stow and secure freight. Officials said that the 3-D's to be avoided in freight car handling are: "Damage by impact, damage by shift and damage by breakage." In demonstration, the transparent car permits a clear view of the results of improper handling. These demonstrations, in charge of a group of officials, will be held at the terminals and major yards of the Gulf lines. The new 3-D transparent car was built by the Santa Fe as another advance in the systemwide efforts to prevent damage. The car is a modification of a standard 40-foot box car with the steel sheathing and wood lining replaced by Plexi-glass sheathing and metal screen which permits observation of what happens inside a car subjected to overspeed impacts. A large-sized speedometer dial has been installed in a side of the car and with a speed recorder operated off the car axle, indicates the speed at time of coupling. To provide demonstrations for night crews the car has interior flood lights powered by batteries installed in a possum-belly of the car. Protection for the transparent sheathing while the car is moving from one terminal to another is provided by detachable panels. It was also fitted with lading anchors at the Santa Fe Topeka shops."The Union Pacific originally converted a mid-1940s 40ft car into an impact instruction car at the Omaha shops in 1952. Serving to illustrate the importance of safe car handling, this car had a transparent sidewall to show cargo movement, along with force and speed gauges displayed on the side.
Canadian National, likewise, rebuilt one of their cars with a plexiglass side and equipped the car with a big needle meter to show speed at impact. One could also observe shifting of the load inside.
Southern Pacific also made use of a transparent car out of a 50ft B-50-30 class car. The research using this car led to the development of the Hydra-Cushion underframe used under many SP freight cars.
impact_prototypes.jpg
Anyway, I just love these cars and now have three to play with in the game and thought others might also enjoy them.
https://www.mediafire.com/file_premium/fdarl7w8nctp5l2/Impact_Boxcars.zip/fileJoyeux NoëlKevinB
You do not have the required permissions to view the files attached to this post.