In-Line Bow & Stern Thrusters
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In‐Line Bow & Stern Thrusters Available in five sizes and seven power levels for bow and stern applications, the Naiad In‐Line Hydraulic Thruster is an extraordinarily compact unit with high output relative to its tunnel diameter. A unique feature of this design is the highly skewed propeller offering maximum thrust and extremely quiet operation. The thruster housing, propeller and shafting are precision manufactured in AISI 316 stainless steel for superior marine corrosion resistance. Precision Reliability Naiad In‐Line Thrusters are CNC manufactured in‐house and each unit is tested under full load on our unique hydraulic dynamometer. More importantly, Naiad In‐Line Thrusters have been field proven in thousands of demanding applications worldwide. Unlike other thrusters which, if tested at all, are simply cycled, our thrusters are rigorously tested under full load on our unique Dynamometer Test Stand. They are cycled in continuously reversing rotation against a propeller shaft load to dynamically test the performance of the bearings, seals and hydraulic motor. Fail-Safe & Environmentally Friendly The pressurized region of the In‐Line Thruster assembly is isolated from the dual seawater shaft seals to eliminate concerns of hydraulic oil leakage into the environment. The seawater shaft seal cavity is protected from oil leakage by a unique drain pressure control assembly which vents any oil leakage to a controlled outboard path. Pre-Packaged Hydraulics Naiad’s high‐efficiency hydraulic reservoir assemblies are engineered to be extraordinarily compact (less space and weight) due to a unique internal baffling system. System interconnections such as hydraulic fluid supply, filtration, and cooling are conveniently located for easy installation and service. Unlike less sophisticated systems, our proven hydraulic control manifold assemblies are designed, manufactured and tested in our own state‐of‐the‐art facility and include all necessary valves for easy installation with less plumbing. Naiad manifolds save installation labor and have significantly fewer hydraulic interconnections and potential leak points.

Specifications Model Tunnel I.D. Inches (mm) Shaft Power HP (kW) Propeller Thrust* Pounds (kN) Flow GPM (LPM) Operating Pressure PSI (Bar) Weight Pounds (Kg) 8HT 8 (203) 15 (11) 386 (1.72) 11 (41) 2650 (180) 30 (14) 10HT 10 (254) 25 (19) 626 (2.78) 25 (97) 2025 (140) 48 (22) 12HT 12 (305) 38 (28) 940 (4.18) 31 (117) 2500 (170) 74 (34) 16SHT 16 (406) 46 (34) 1278 (5.68) 38 (144) 2500 (170) 128 (58) 16LHT 16 (406) 62 (46) 1565 (6.96) 51 (193) 2500 (170) 128 (58) 20SHT 20 (508) 67 (50) 1868 (8.31) 56 (212) 2500 (170) 240 (109) 20LHT ...