Interchangeable in any combination

369A,H,HE,HM,and HS:	5,600 hours
369D,and E (2 Blade System):	5,140 hours
369D,and E (4 Blade System):	10,000 hours
369F:	5,140 hours

Full span Titanium Abrasion Strip eliminates Blade Skin erosion and pitting

Pitch Arm is integrated into fully machine Root Fitting providing more Blade-to-Blade consistency

IVD Aluminum Plated Stainless Steel Bushing replaces Cadium Plated Carbon Steel

Pocket in Tip Cap allows easy inspection access to Tip Cap Rivets

Tail Rotor Blade Life-Limits: