Design and supply of new Controllable Pitch Propeller blades
Conversion of old propeller blades to fit new operation and higher ice class. Reduced vibrations to 50% . Increased efficiency 5-8%.
Improved performance 7-3% and better channel manouevering abillity.
Model tested propeller blades, diameter 5,4m, (SSPA) verified 11% improvement. Daily reduction of fuel 3200kg (cost 2000usd/d). Now possible to maintain schedule with only one engine in operation.