Description
The Rolls-Royce STC-1 7450439-0-002 Aquamaster Secondary Turning Controller is a marine propulsion control module designed for Rolls-Royce Aquamaster azimuth thruster systems. It provides backup turning control functionality for thruster rotation systems, supporting safe maneuvering and maintaining vessel control capability in demanding marine environments.
The STC-1 controller is installed within Aquamaster propulsion control architectures and works as a secondary turning control unit when the primary turning controller requires backup operation. It is commonly found on offshore vessels, workboats, cargo vessels, and dynamic positioning vessels equipped with Rolls-Royce azimuth propulsion systems.
The 7450439-0-002 unit is also identified with references such as ACD 7351413-001 and is used as a replacement spare for existing Rolls-Royce Marine propulsion installations where original hardware compatibility is required.
STC-1 7450439-0-002
📌 Product Parameters
| Parameter | Description |
|---|---|
| Brand | Rolls-Royce Marine |
| Model | STC-1 |
| Part Number | 7450439-0-002 |
| Series | Aquamaster Thruster Control System |
| Product Name | Secondary Turning Controller |
| Origin / Place of Origin | Finland / Norway Marine System Production |
| Product Status | New Open Box / Marine Spare Replacement |
| Dimensions | Approx. Compact Marine Controller Module Size |
| Weight | Approx. 1–3 kg |
| Power Supply | Marine DC Control Power (typically 24VDC system) |
| Discontinued | Legacy model, replaced by newer Aquamaster control solutions |
📌 Product Datasheet
| Parameter | Description |
|---|---|
| Controller Type | Secondary Azimuth Turning Controller |
| Application | Aquamaster Azimuth Thruster Steering Control |
| System Function | Backup turning angle control and monitoring |
| Compatible Equipment | Rolls-Royce Aquamaster Thruster Systems |
| Control Interface | Marine propulsion control network |
| Installation | Marine control cabinet / propulsion control rack |
| Communication | System-specific marine control communication |
| Main Function | Secondary rotation control for azimuth thrusters |
| Environment | Marine and offshore applications |
| Typical Use | Ships, offshore vessels, DP vessels |
📌 Common Questions & Answers
❓ Q: What is the main function of the Rolls-Royce STC-1 controller?
A: The STC-1 provides secondary turning control for Aquamaster azimuth thrusters, supporting backup operation and vessel maneuvering control.
❓ Q: Which equipment uses the STC-1 controller?
A: It is mainly used in Rolls-Royce Aquamaster azimuth thruster propulsion systems.
❓ Q: What are common failure symptoms of this controller?
A: Possible issues include thruster turning alarms, loss of secondary steering control, communication faults, or incorrect azimuth position feedback.
❓ Q: Is STC-1 interchangeable with STC-2?
A: No. Both are secondary turning controller products, but replacement depends on the installed thruster system version, hardware configuration, and control software.
❓ Q: What should be checked before replacement?
A: Confirm the exact part number, controller revision, Aquamaster thruster model, wiring connections, and vessel control system configuration.
❓ Q: Where is the STC-1 commonly installed?
A: It is typically installed in marine propulsion control cabinets on vessels using Aquamaster azimuth thrusters.
📌 Recommended Rolls-Royce Marine Models
- Rolls-Royce STC-2 Aquamaster Secondary Turning Controller – Updated secondary turning control unit for Aquamaster thruster systems.
- Rolls-Royce STC-1B Aquamaster Secondary Turning Controller – Alternative STC-1 series controller version.
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- Rolls-Royce Aquamaster Control System Components – Complete azimuth propulsion control spare modules.
