ROTOR ARM CI ref R41 = Lucas 407030 and 415088 NOS balanced rotor arm DY6A DX6A
This is the original shape counter balanced type unlike most modern made ones. AC 16 48-57, Ace and Aceca 55-62. HUMBER 16 and 21 40 only 18 Snipe 46-47 27 Super Snipe 40-53. KARRIER 3 Ton CK3 47-52.