Guyed mast

It requires guy lines to stay upright and to resist lateral (shear) forces such as wind loads.

Sometimes they are used as pylons (transmission towers), although their usage in agricultural areas is problematic because anchor foundations handicap ploughing.

The tallest guyed tower is currently the 2,060 feet (630 m) KRDK-TV mast in Traill County, North Dakota, USA.

The mast on heavy equipment such as a crane is its main supporting tower, typically of trussed steel construction.

Wire rope guys typically led back to the crane's base stabilize it and support its ability to bear significant shear loads while lifting.

They can be also used in order to upgrade small stable towers (like watertowers) with a long antenna mast for FM and TV broadcasting.

A guyed radio mast
Zendstation Smilde , Netherlands , is a 303 m (994 ft) partially guyed tower that consists of an 80 m (260 ft) high reinforced concrete tower topped since 2012 by a 223 m (732 ft) steel lattice television mast