Is this any help? It refers to the L2 tail rotor.
Vert
Specifications :
Number of blades : ..................................................... 4
Rotation wise : . Counter-clockwise, seen from RH side
Diameter : .......................................................... 3.15 m
Rate : ........................................................... 1296 RPM
Profile chord : .................................................. 250 mm
Weight : ............................................................ . 6.8 kg
Twist : ............................. 11° 10' from ref : 493 to 1450
Parabolic profile from ref : ...................... 1450 to 1575
Twist axis : .............................................. 25% of chord