Harbormaster Marine Equipment
Harbormaster Bow and Tunnel Thrusters
Harbormaster tunnel thrusters for bow or stern installation on commercial vessels, with vertical or horizontal input flange, forged steel gears and shafts, four-blade manganese bronze propeller.
Description
Harbormaster Marine bow/tunnel thrusters are installed athwartships in a tunnel low in the bow, sometimes with a second unit in the stern for dynamic positioning and station keeping. The company was an early developer of tunnel thrusters for commercial vessels such as ferries.
Key features
- Input flange in vertical or horizontal position to suit customer-supplied power (e.g. hydraulic motor)
- Forged steel gears and propeller shafts; lapped and matched gear sets
- Tapered roller bearings and precisely engineered shim sets
- Abrasion and corrosion resistant tunnels with extra-thick chill rings to control distortion
- Three-point pod support; extra heavy-duty construction
- Four-blade manganese bronze propeller
- Custom-length units with adaptor rings for repowering existing tunnels (e.g. BT-400 repower)
Models
BT-200, BT-340, BT-400, BT-550
More from Harbormaster Marine
- Harbormaster Marine Harbormaster BT-200 Bow Thruster
- Harbormaster Marine Harbormaster BT-340 Bow Thruster
- Harbormaster Marine Harbormaster BT-400 Bow Thruster
- Harbormaster Marine Harbormaster BT-550 Bow Thruster
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