AQUAshuttle

The AQUAshuttle III is a robust, high speed towed undulating vehicle with a proven record in use on high speed Naval vessels and ships of opportunity. As with the NνShuttle, it can be operated completely autonomously from a nonconducting cable, as it powers itself during operation and stores its undulation instructions within an inbuilt controller. It can therefore be deployed from a simple non-conducting cable, allowing the user to utilise existing winches or capstans. When used with a conducting tow cable, real-time data display and vehicle control is available.  AQUAshuttle's has a payload bay capable of holding a number of instruments including Chelsea’s MINIpack CTD-F sensor suite, Plankton Sampler, GLOWtracka bioluminescence sensor and UV AQUAtracka fluorimeter for Gelbstoff and hydrocarbon monitoring.


Applications and Features
Applications
  • Oceanographic data gathering from ships of opportunity
  • Ecosystem health monitoring
  • Real-time two dimensional data gathering in support of oceanographic modelling
  • Pollution monitoring and dye tracing studies
  • Sea truthing for satellite remote sensing
  • Continuous plankton monitoring and sampling
  • Estuary, coastal zone and open ocean surveys
  • Local area site assessment
Features
  • Highly stable, light weight and robust
  • Versatile payload configuration
  • Generates its own power for vehicle control
  • Wide tow speed range (8 to 25 knots)
  • Pre-programmable or real time control
  • Fast data acquisition (logged or real-time)
  • Undulating depth range from 0 to 135m
  • Undulation wavelength 800m to 4km
 
Description
The AQUAshuttle III is a stable, highly robust, versatile undulating towed vehicle for deploying a wide range of oceanographic monitoring equipment. Designed and developed by Chelsea Technologies Group and the Plymouth Marine Laboratory, UK, it has a proven record of reliability over many thousands of miles of operation.

The vehicle has a strong glass reinforced plastic body with a robust integral stainless steel framework, which can accommodate a wide range of sensor payloads. Its 'flight' profile is maintained by a servo-controlled elevator, the servo being powered by the vehicle's own impeller driven alternator.

Real-time control and data display enables the operator to observe the two-dimensional oceanographic conditions and adjust the flight parameters accordingly. Capable of tow speeds from 8 to 25 knots, AQUAshuttle will undulate from the surface to 135 metres. The stand-alone capability, ease of handling, high data rate and versatility of sensor and sampling packages make this a cost effective and productive platform for large-scale data collection. With the growing need to monitor diverse marine ecosystems on a regular basis, AQUAshuttle has a proven record of extensive use on research vessels and ships of opportunity. AQUAshuttles have been supplied to environmental agencies, scientific laboratories and military establishments throughout the world. It has a payload bay capable of holding a number of instruments including Chelsea Technologies Group’s MINIpack CTD-F sensor suite, Plankton Sampler, GLOWtracka bioluminescence sensor and UV AQUAtracka fluorimeter for Gelbstoff and hydrocarbon monitoring. It can also be fitted with third party instrumentation.

 

 
Specification
The standard AQUAshuttle package comprises the underwater vehicle, depth sensor, alternator and servo control system.
AQUAshuttle Body


Length (body): 1.06m

Height: 0.50m
Width: (including wings) 0.72m

Weight (including Servo Control, In Air) 66kg
Weight (including servo contro, excluding Logger Port & Sensors)

In Water 45kg
In Air 66kg

Operating Profile


Control: Self-contained processor control of elevator servo from pre-programmed profile or real-time communications
Depth Range: 0 to 70m unfaired (135m faired) typically
Towing Speed: 8 to 25 knots
Drive / Climb Speed: 1 m/s maximum

Engineering Details


Flight Programme: Input from computer via RS422 link
Elevator servo: Digital control with depth sensor
Power: Impeller driven alternator powering digital servo above 5 knots
Material: Strengthened glass fibre reinforced plastic body; 316 stainless steel frame and towing yoke
Support Systems


Winch: Dedicated winch with slip ring assembly only required when used in real-time mode with power/data communication to surface deck unit. When towing on a bare cable, a standard ships capstan may be used.
Cable: Rochester 7-H-314A or equivalent for real-time deployments
Fairing: Fathom Flexnose(R) fairing is used for increased depth and undulation range performance
Typical Instrumentation Payload

Combinations of: CTD, Fluorimeter, Transmissometer, Turbidity, Bioluminescence, Irradiance meter, Optical plankton recorder, Plankton Sampler, Nitrate/Nitrate sensor, and SeaWifs bands sensors.
 
Deployment

Learn more about your options for deployment - Winches, Cables and Fairing

 
Deck Units

Learn more about your options for Deck Units

 
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