rjack22 wrote:
The rudders on our (new to us) Hobie 16 have black rudders. What kind do I have? How do you tell?
There are five different type of "black" rudders:
Original EPOs - made from 1984-89 - have a very smooth, hard, solid charcoal colored finish, are very light and stiff. If they've been left out in the sun, the glass fibers start showing through and they get grayer. If in very good condition, they may still have the foil label on the trailing edge near the head that says "EPO 864" on it.
Black Plastic - Very common, heavy, often have a light textured finish. Can see whorls in the head from the injection process. Flexible. An inexpensive alternative to high-end racing blades. However, helm feel and heavy air control is much improved with a racing blade.
Black Racer - not that common, are in-between EPO and plastic in weight. Have a softer, gel coat finish. Stiff but easily chipped.
European Carbon - clear finish shows carbon weave, grey "Hobie Cat" lettering on each side. (The photo of the Heineken boat above has Euro Carbon rudders)
EPO2 (Carbon and Carbon/Kevlar) - clear finish shows fabric weave, EPO logo. (You can see the EPO logo on both of the other photos above if you look carefully.)
These are just the ones that Hobie Cat has made. Back in the '70's and early '80's, there was a thriving aftermarket for fiberglass rudder blades in all sorts of colors, including black.