Searching the Archives shows - if your wing chord root is 450mm - then the CG setting is 180mm from the leading edge.
ZN seems to stick their CG locations all about the same spot.....
Fashion, Caprise, Alliance, Synergy, Hydeaway all have the CG about in this location - "tnewman"
http://www.rcuniverse.com/forum/m_11...tm.htm#1139496
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Schpankme