Peter the rudder I'm referring to was on friend Brian's Impact, the one that broke a tail. I removed the stock unit from the broken fuse with composite horn, and half the hinges attached (the other half was left in the tail post). There was no tail or rudder post attached to the rudder. It weighed 84 grams if I remember correctly.

Your rudder at 52 grams is reasonable, almost 2 ounces.

My built up rudders of this size usually weigh in at 30-32 grams and finish out at around 40-44 grams in paint, including horn but excluding hinges (I use Kevlar hinges normally which weigh nextto nothing)

Matt