Integrated SAS LARS

Integrated LARS for towed SAS

One base frame — A-frame, winch, anti-sway unit and power pack are integrated on a common base, installed and removed as one unit.
Negative-angle overboarding — The A-frame swings past the vertical to place the tow body clear of the transom, with a 3 t outboard supporting load.
≥1200 m of φ17.3 mm cable — Drum load ≥3 t at the inner layer; working tension at the cable end ≥1.5 t; manual braking load ≥4.5 t.
≤50 kW peak power — Deployment and recovery at ≥0.5 m/s on a freeboard height of up to 3.5 m.

LARS

Overview

The Integrated SAS LARS is a launch and recovery system for towed synthetic aperture sonar. The A-frame, winch, anti-sway unit and power pack are mounted on a common base frame, so the complete system goes onto the working deck as a single unit.

The A-frame supports negative-angle overboarding and carries an outboard supporting load of 3 t. The winch holds at least 1200 m of φ17.3 mm cable, with a drum load of ≥3 t at the inner layer, a working tension at the cable end of ≥1.5 t and a manual braking load of ≥4.5 t.

Maximum deployment and recovery speed for the towing cable is ≥0.5 m/s, and peak power drawn during launch and recovery is ≤50 kW. The system is built for a freeboard height of up to 3.5 m. It is designed and supplied by OCEAN PHYSICS for vessels operating towed synthetic aperture sonar.

Specifications

Technical data

Item	Value
Configuration	Integrated — A-frame, winch, anti-sway unit and power pack on a common base frame
A-frame overboarding	Negative-angle overboarding supported
Max. deployment and recovery speed (towing cable)	≥0.5 m/s
Max. adaptable freeboard height	≤3.5 m
Winch drum load	≥3 t at inner layer
A-frame outboard supporting load	3 t
Working tension (cable end)	≥1.5 t
Manual braking load	≥4.5 t
Cable capacity	≥1200 m @ φ17.3 mm
Peak power for launch and recovery	≤50 kW
Weight	—
Dimensions	—