The C-130J 'Super Hercules' is the newest version of the Hercules and the only model still in production. The J-model features new Rolls-Royce AE 2100 D3 turboprops with Dowty R391 composite scimitar propellers, digital avionics (including head-up displays (HUDs) for each pilot), and reduced crew requirements. These changes have improved performance over its C-130E/H predecessors, such as 40% greater range, 21% higher maximum speed, and 41% shorter takeoff distance.