A51 Alternator 3/2/1/ fin Fcs2 or Futures

A51 Alternator 3/2/1 fin for FCS2 OR  FUTURES fin system COMPATIBLE

SPECIAL INSIDE FOIL HAS 3 DIFFERENT CANT ANGLES, EACH ANGLE INCREASE OF 3 DEGREES EACH

FCS 2 RECOMMENDED FOR USE WITH 5 OR 9 DEGREE FIN BOX ONLY

Competition approved, Same fins that James Walker rode for years

Compare to Futures SCIMITAR VF 452 3/2/1/ fins , 

DEPTH OF 4.5 INCH

Hex core with carbon fiber mesh reinforcement fiberglass construction

gray smoke hex core Fcs2 and Futures

Purple hex core Fcs2

Clear hex core Fcs2