The efficiency of this car is a simple mathematical problem. Compare
this 4-Bunk Car with a Flat Car with four bunks of the same capacity
and note the saving. The percentage of dead weight to log capacity is
30% as compared to 36¼% for the flat car or a car cost per thousand
feet logs of $78.50 as compared to $93.50 for flat car. This means a
saving of 20% on the haul back of empty cars and nearly 20% in first
cost.
Where a large percentage of logs from 12 to 20 feet are handled, this
Quadruple Bunk car has a great advantage over any other type. The
construction is such that the entire load can be carried safely on the
two center Bunks. Logs in length from 12 to 41 feet can be carried with
equal facility.
Details are as follows:
Westinghouse Air Brake, Automatic Couplers, Tandem Spring Draft Rig,
Two Main Sills 10 × 10 in., forty feet.
The Bunks are arranged to dump the load on either side.
Two Side Sills 10 × 10 in. extending from Bolster to Bolster. Each
Side Sill is trussed with two 1½ in. rods. Two intermediate bunks are
located directly over cross ties. Bunks are 10 feet long equipped with
Knight chocks.
Bolsters are built up of Structural and Cast Steel of ample capacity to
carry load.
Trucks are Standard Arch Bar type with 4½ × 8 in. Journals. 33 inch
chilled tread double-plate, Griffin wheels. Structural Steel Bolsters
and spring plank. All metal Brake Beams inside hung.
This car is equipped with all necessary steps and handles and meets
the requirements of the Inter-State Commerce Commission and the U. S.
safety appliance laws.
[Sidenote: _CODE
"Craig"
Number 501_]
=Quadruple Bunk Skeleton Logging Car=
=Capacity 80,000 lbs.=
[Illustration: Designed and built exclusively by