E-2 



■BATFISH* 



Operating: Depth: Standard version 200m (656 ft), wide-winged version - 



UoOm (1,312 ft) 



Dimensions (LxWxH ): Standard version - 1.3m x .0T5m x 0.9in (^-3 ft x 



2.5 ft X 3 ft), wide-winged version - 1.3m x 1.25m x 0.9ni {h.3 ft x k.l 



ft X 3 ft) 



Weight (Dry ) : Standard version - TOkg (l5^ Ihs), in-water - 20kg {hk 



Ihs) wide-winged version - 85kg (189 lbs), 25kg (55 Ihs in water. 



Towing Speed : 5 to 15 knots (lO to ^5km/hr) 



Power : Information not available. 



Instrumentation : Pressure transducer, conductivity/temperature/depth 



sensor, fluorometer, zooplankton counter. All environmental data is 



transmitted digitally to the surface. A bottom avoidance system has 



been employed which emits an audible alarm when the vehicle reaches a 



pre-determined altitude above the bottom, at this point the vehicle 



automatically begins to ascend. The vehicle is also equipped with a 



roll and yaw stabilizer and a depth servo-control system which activates 



the wings on BATFISH to cause it to ascend or descend within certain 



programmed rates and diving limits. 



Navigation : Relies on surface positioning systems. 



Support Ship Requirements : Cable winch and davit (for imf aired cable) 



or stern-mounted A-frame (for faired cable). The vehicle has been 



deployed from a variety of ships from lOm (33 ft) to 90m (295 ft) LOA. 



Crew : Two to three. 



Status : Operational. 



Builder/Operator : The basic vehicle is built by Guildline Instri.iments 

 Ltd., Smith Falls, Ontario, Canada. Some of the above instrumentation 

 was constructed by the operator: Bedford Institute of Oceanography, 

 Dartmouth, Nova Scotia, Canada. 



*The basic BATFISH towed body is manufactured by Guildline Instruments 

 Ltd. Several units of two versions (standard and wide-winged) have been 

 sold. The unit described herein, except where noted, is a standard 

 version employed for oceanographic investigations by the Bedford I 



