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ℹ️ Additional Information
| Condition |
USED/GOOD WORKING CONDITION |
|---|---|
| Manufacturer |
NABCO |
| Product Code |
200.280.02297 |
📦 Guarantee Terms
🗂️ Product Files
🖹 Description
MT-8127-R
89-12-170
Ship Engine Order Telegraph (Ahead–Astern Telegraph)
This is a ship engine order telegraph, specifically an Ahead–Astern Telegraph manufactured by NABCO (model MT-8127-R). It is a traditional yet essential marine communication device used on vessels to ensure clear and reliable transmission of engine commands between the bridge and the engine room.
What it is
An engine order telegraph is a classic maritime control system that allows officers on the bridge to communicate propulsion commands directly to the engine room crew. Before modern digital control systems became widespread, this device was the primary method of coordinating engine speed and direction on ships. Even today, it remains widely used as a backup system or in vessels that rely on proven, robust mechanical solutions.
How it works
- The officer on the bridge moves the telegraph lever to a specific command, such as:
o FULL
o HALF
o SLOW
o DEAD SLOW
o STOP / NEUTRAL
o ASTERN (reverse power levels) - The selected command is instantly transmitted to a corresponding telegraph unit located in the engine room
• The engine room crew receives the signal, acknowledges it (often by matching the lever position), and executes the order accordingly
This process ensures precise coordination between navigation and propulsion, which is critical for safe vessel operation, especially during maneuvering, docking, or emergency situations.
Key features you’re seeing
- A vertical scale displaying propulsion commands for both Ahead and Astern directions
• A mechanical or electronic lever used to select and transmit commands
• Indicator lights that show system status and confirm acknowledgment
• An audible bell system that alerts crew members whenever a new command is issued
Simple explanation
In simple terms, the engine order telegraph acts as a “command dial” between the captain (or bridge officer) and the engine room crew. It translates navigation decisions into clear, standardized engine instructions, ensuring smooth communication, operational safety, and efficient vessel control in all maritime conditions.
