My blade has the well known alu superwing mast, and black anodized aluminum round beams.
New to the Blade is the Rudder system, made in Hamburg by Shake-Design.
At the Swiss F18-ht site
http://www.18ht.ch/index-de.html
is a report from 09.04.2007 about it.
(but only in german)
The rudders are also used on F18ht's.
Holger