WHEELED VEHICLES 
193 
sharp turns cannot be made without dragging some or all of the 
wheels. Others have the front trucks so arranged that the two 
sets of wheels can turn inde])endently, thus reducing the resist- 
ance. All wheels are of the same diameter, varying in different 
vehicles from 30 to 36 inches in height. 
The log bunks, with adjustable blocks, are supported midway 
between the wheels of each truck and project slightly above the 
Fig. 56. — An Eight-wheeled Lojii; Waf^oii at the Skulway. Louisiana. 
wheels. A short reach is attached to the forward and rear trucks 
by flexible joints. 
Eight-wheelers have an estimated capacity, on good roads, 
of from 9000 to 20,000 pounds weight. They weigh from 1200 
to 1800 pounds. 
Wagon Equipment. — The equipment used with log wagons 
on southern pine operations is as follows: 
1 ax. 
1 cant hook. 
1 five-sixteenth-inch chain, 30 feet long, the ends of which are bolted to 
the bunks of the forward and rear trucks. 
1 one-half-inch chain, 12 feet long, with a grab hook on one end and a 
loading hook on the other. This chain and the one above form the 
crosshaul used in loading. 
2 hardwood skids about 7 feet long and 4 inches in diameter. 
1 hickory binding pole. 
Roads. — On short hauls the only preparation made for roads 
is to cut out a right-of-way through the brush. If the bottom 
becomes heavy for travel a new route is selected. When a 
