Select to expand quote
ptsf1111 said..
The Gorilla, Blue, and Red SeverneRDM masts are identical, except for the 1 layer (Blue) or 2 layers (Gorilla) of glass for strength. Makes you wonder why the Red is more expensive than the Gorilla as it requires less material and labour. Guess it's a higher quality prepreg carbon.
I don't know where you are getting that from?
Carbon fibres come in a variety of qualities and price ranges. The highest quality (and most expensive) carbon fibre have a higher elastic modulus, compare to cheaper fibres. The higher modulus means that you need less of the fibre-composite for a certain bending stiffness of the mast. This means a that lower wall thickness can be used, and hence the weight is lower. Severne then use the T800 fibres from Toray in their "Red" line and not in their "Blue" line. So the blue line will need a thicker wall, compare to the red line, in order to have the same bending stiffness in the mast.