An external halyard system is the most common flagpole application and places the rope halyard on the outside of the flagpole. External halyard systems utilize flagpole Trucks with an exposed pulley and rope halyard.
An External Halyard Flagpole System incorporates a flagpole truck at the top of the flagpole with an exposed pulley. The rope goes through this pulley and is tied off on a cleat near the bottom of the flagpole. External Halyard Systems are available with both a stationary or rotating/revolving truck.
A stationary truck does not swivel right or left with the wind, it does not rotate. Stationary trucks are the least cost out of pocket. They have a size range because they cap fit over the top of the flagpole and the width of the top diameter determines the maximum size stationary truck usable. 3.5" is our largest diameter cap style stationary truck. Used on residential flagpoles to control cost. The trucks should be set to the angle of the prevailing winds to maximize performance.
A revolving truck will help reduce the wear and
tear on the truck components and the flag by allowing the flag to rotate or flow down wind. A revolving truck will swivel
left or right with the wind stress relieving the flag adding to the overall performance and longer life of the flag. This in turn offsets some of the cost of the rotating truck by providing longer flag life.
Another option is to upgrade to a Double Halyard Truck. External Halyard Flagpoles can use a truck with a double pulley rigging arrangement. The double pulley truck allows the
flagpole to have two separate halyard systems, attached to two separate cleats. This makes it easier to
fly multiple flags or fly one flag on top of the other, while supporting flexibility.