The paper presents a study conducted to investigate the influence of geometric scale and flow condition on the wind load coefficients for lattice masts structures. An initial study in 2008 on a full size mast section indicated a possible contingency, which could be used to add equipment on telecommunication towers without further structural strengthening. This study focuses on the role of scaling. A 1:6 scaled mast model was tested in two different flow conditions and in three layout variations. It was found that scaling does play a large role and that some of the codified loads are in fact more reflecting model scale behavior than full scale aerodynamics. This reveals the main challenge if for reasons of economic production and operation of telecommunication towers and masts a more accurate wind load description is required: full size testing.
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