The exact description of the fin, at least of a draft version of the rules, can found at
http://tentenths.com/forum/showthrea...39#post2708839
Quote:
Originally Posted by MulsanneMike
The fin should have a constant thickness (between 10mm minimum and 20mm maximum).
The fin should be continuous without any holes or openings.
No other device can be attached to this fin.
|
So no F-duct as TRuss said.