SEVERNE RDM WAVE GRENADE HD
HD stands for Heavy Duty
The new Rdm wave grenade HD has 36cm of adjustment for better compatibility with Severne's wave sail range. They analyzed the customers needs for more reliable tubes over this increased length and tested a variety of Aluminum specification to find the strongest mast extension. Severne decided on a wall thickness 33% thicker than most conventional RDM extensions and an increased outside diameter, for the ultimate durability against bending and breaking.