PROPELLER DIAMETER : 1600mm , 1700mm
The SR 4000/ 2 Hydro is a double bladed, hydraulical , in flight adjustable propeller of mixed construction, intended for the engines:
ROTAX 912UL, 912ULS,914
For possible use with any other engine type - consult the propeller producer.
The pitch angle of the blades is adjusted by means of an hydraulic governor (http://www.propellergovernor.com ) , controlled from the cockpit, and it can be smoothly changed in the range from minimum angle valid for take-off up to the maximum angle.
The system allows a range of adjustment of pitch angle of at least 20 degrees over the minimum angle (for example 10-30 degrees, or 14-34 degrees etc.)

PROPELLER BLADES – CONSTRUCTIONAL DESIGN:
1. WOOD-CARBON (BLACK) BLADES WITH PLASTIC LEADING EDGE.
For propeller blades with wooden core and carbon fibre surface, the leading edges of the blades are cast from highly resistant plastic material, that serves as protection against impacting sand, small stones, water and other effects, which may damage propeller blades. These blades are available for propeller diameter 1600mm and 1700mm.
2. WOOD-COMPOSITE (WHITE) BLADES WITH PLASTIC LEADING EDGE.
For propeller blades with wooden core and glass-laminated surface in white or black colour, the leading edges of the blades are cast from highly resistant plastic material, which serves as protection against impact of sand, small stones, water and other effects, which damage propeller blades. These blades are available for propeller diameter 1600mm and 1700mm.
AERODYNAMIC CONICAL SPINNERS FOR PROPELLERS

The aerodynamic spinners are produced of fiberglass. They are manufactured in five diameters:
The base of spinners is stiffened by means of special insertion.