CDC & Elk
By Hans Weilenmann
Hans Weilenmann developed the Cdc and Elk as an improvement to Al Troth’s Elk hair Caddis. Hans used a single cul de cunnard feather to wrap the shank of the hook and then adds the Elk hair much or maybe the same a the Al Troth did on the Elk Hair Caddis.
The fly floats very well. Here is the link to tying the fly by Hans Weilenmann Cdc and Elk
There are several other links to more information and articles on the above link at globalflyfisher.com. It is well worth reading about related flies and also cu de cunard feathers.
Below is an example of a cdc and elk that I tied.