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ALR-C for
Davit & Crane

Maritime launch and recoveries via cranes or davits are standard practices. ALR-C, a fully autonomous system, streamlines retrievals of USVs and manned boats in varying sea conditions with minimal human intervention.
With rapid capture (<1.5 sec) and hauling (<15 sec) times, ALR-C ensures swift operations. Its fully autonomous capture initiation and recovery sequence, optionally manual, guarantee reliable performance.
Equipped with innovative identification and capture systems, ALR-C performs the entire recovery sequence automatically. As an add-on for ships or rigs, it requires minimal modification, enabling seamless integration on existing or new vessels.

ALR-C

Autonomous Recovery Cradle

Sealartec ALR-S system for autonomous stern recovery, converting standard ramps for safe USV and boat recovery

Innovative
Auto-Capture
system

Fixed or
retractable Lifting
Structure

Main Processor:
Decision-Making
Algorithm

Sealartec ALR-S system for autonomous stern recovery, converting standard ramps for safe USV and boat recovery

Innovative
Auto-Capture System

Fixed or Retractable
Lifting Structure

Main Processor:
Decision-Making Algorithm

Boat connection unit

Autonomous Recovery Cradle

Bow Capture Unit

Components of Sealartec’s LPS system for precise autonomous marine positioning

LPS

command & Control

User Friendly

Intuitive user interface touch screen monitor

Intuitive user interface
touch screen monitor

safety

Additional handheld safety
controller with push buttons

Additional Hand Held Safety
controller with push butons

connection

Standalone or connected to ship command and control

Standalone or connected to ship command and control

requirements

Configurable for user requirements

Configurable for user requirements

side recovery process - ALR-C

Identification & Capture - side recovery

  1. Match boat speed to cradle

  2. Drive boat to a wide capture zone aft off ALR-C

  3. ALR-C identifies and captures boat autonomously

  4. Boat captured and reduce throttle to zero

  5. Boat hauled onto ALR-C under controlled tension

  6. ALR-C and boat hoisted together to ship deck

the challenge of side recoveries

Side recoveries are commonly practiced in the maritime sector, necessitating a proficient crew both on the boat and the hosting ship. The complexity and risk of the procedure escalate with higher sea states. Relying heavily on human expertise often results in accidents, causing injuries and, at times, casualties. These incidents contribute to restricted operational capability in varying sea conditions, impacting both civilian and defense markets.

This challenge is particularly pronounced for Unmanned Surface Vehicles (USVs). With no crew on board, the primary hindrance lies in connecting the USV to the ship’s crane or davit systems, posing a significant obstacle to the integration of USVs in the maritime domain.

Examples of manned recoveries gone awry include…

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