Marjan Fratnik born 1919 in a small Slovenian village close to the Soca River came up with an extremely simple and effective fly using cdc. Its durable, easy, floats as foam and can be tied in small sizes, really small.
F-fly
Type
Dry fly
Originator
Marjan Fratnik
Year of origin
1980
Difficulty
Easy
Materials
Hook
Dry fly size 10-26
Thread
10/0 color to match natural
Body
Colored spiderweb
Wing
1-3 CDC feathers
Tying instructions
Cover the shank with thread.
Rib the body with tying thread.
Match together 1-3 CDC feathers depending on the hook size.
Tie in the feathers just behind the hook eye on top of the shank.