High-Strength, Low Alloy, Weathering A606-4 steel plate is used in fabrication of the Wilco pontoons.
This steel has 5 to 8 times the atmospheric corrosion resistance and
20% more tensile strength than similar size A36 structural plate steel.
Each pontoon has 5 bulkheads, providing 6 independent watertight compartments.
The bottoms of the pontoons are reinforced for rough terrain operations.
Three strands of specially designed, heavy duty,
5 inch pitch marsh buggy track chain are installed on each pontoon.
The hardened track chain rollers run in pontoon channels lined with an abrasive resistant hardox wear bar.
Drive and idler shaft sprockets are flame hardened to match the hardness of the track chain rollers.
