Incorporating many of the improvements developed for the SA 366 G1 (HH-65 Dolphin), this version introduced upgraded 526 kW (705 shp) Arriel 1C1 turboshafts, an improved 11-blade Fenestron with wider-chord blades (which reduced the AS365 N1's noise signature), movable undercarriage doors replaced by simplified fairings and a higher gross weight of 4100 kilograms .