Looking for the name of the rudder blade that was used on the crackerbox I saw in the article called "Scratch Building a Crackerbox" by Frank E. Mintz 20/11/06

That's an Octura large wedge rudder assembly, OC6WRL. You can also get it with an extended bracket to move the rudder a little futher away from the transom.Call Octura and tell them what you want at 847-674-7351 or you might be able to find one from one of their distributors such as www.rocketcityracing.com and look through the Octura products www.rocketcityracing.com/Octur...mfg_58-0-1.html