I purchased a balanced rudder from Ida Sailer based on John Ritgers research. I'm very happy with it. Weighed in at 48 pounds versus 76 pounds for the balsa soaked original. I have refurbished the old one and it now weighs 71 pounds. If anyone is interested in purchasing my old one and/or a set of original gudgeons and pintels, email me at herbertclifton@hotmail.com.
Black Kight, #237, Panama
