The Wärtsilä 2-speed gear is designed to serve vessels having multiple operational modes or reduced transit speeds. These vessels can gain notable economic & environmental benefits:
‑ fishing vessels
‑ rescue tugs
‑ offshore support vessels
‑ seismic support vessels
All single screw vessels with redundant propulsion system (“take me home system”) will benefit from this gear type.
Reducing the speed & increasing the pitch of the propeller procures greater propeller efficiency at reduced load.
Less fuel consumed means that nitrogen oxide (NOx) and sulphur oxide (SOx) emissions are lowered.
The Wärtsilä 2-speed gear is available with a high degree of modularization in the 2 MW to 13 MW power range.