General Technical Specification of the 25 Meter High Mast Tower Height of the Tower 25 meter High Mast Tower with telescopic Lights cradle. Material of Construction M.S. Plates formed into a Polygonal shape. Basic wind speed a. 33 m/sec (118 km/hr) b. 44 m/sec (158 km/hr) c. 50 m/sec (180 km/hr) Gust Factor 1.15 1.25