F-2 



OSR-V and OSR-H* 



(OCEAN SPACE ROBOT-VERTICAL) 



(OCEAN SPACE ROBOT-HORIZONTAL) 



Operating Depth : 250m (820 ft) 



Dimensions (LxWxH) : OSR-V: i+.Sm x 2.0m x l.T5m ( l^t ft x 7 ft x 5-7 ft) 



OSR-H: li.l+m x 0.86m x 2.0m (l^ ft x 2.6 ft x 7 ft) 

 Weight (Dry): OSR-V: 2,600kg (5,731 lbs) (displacement). In water - plus 

 or minus i45kg (99 Ihs ) 



OSR-H: l,600kg (3,527 Ihs) 

 Speed: OSR-V: 3 knots (6km/hr) Climbing speed - 0.6 knots (ikm/hr) 



OSR-H: 2 to 5 knots [k to 9km/hr) 

 Structure : OSR-V: Cylindrical pressure hull contains batteries, electronics 

 and control device. The bow and stern are capped by a nose and tail cone, 

 respectively. Above the pressure hull a fairing encloses and protects a 

 current meter and surface detector. Skids are affixed to the underside 

 of the vehicle for landing on the bottom. 



Power : OSR-V: Silver oxide batteries, lOOv and 2k^r, 256 amp-hrs. 

 OSR-V is designed to conduct 35 up/down cycles under average current 

 conditions of 3 knots and water depth to lOOm (305 ft) OSR-H is designed 

 to cruise at 3 knots horizontally for a 2k hour period. OSR-V is propelled 

 by two, 5 hp electric motors which power two, stern-mounted (port/starboard) 

 propellers . 



Command/Control : OSR-V: The vehicle controls its position automatically 

 on a pre-determined vertical (up/down) course. A sea-bottom base transmits 

 acoustic pulses periodically which are received by two hydrophones on 

 the OSR-V. The difference in reception time is used, together with 

 depth and attitude (heading; inclination) information to calculate the 

 vehicle's position. By using a trim adjusting device, a ballast tank and 

 two propellers, the vehicle moves (diving or climbing) along pre-determined 

 vertical lines. In the event that the vehicle generates an emergency 

 signal, a support ship can transmit a climbing command to bring the vehicle 

 to the surface. 



Instrumentation : OSR-V: Current meter, water temperature sensor, water 

 pressure sensor, conductivity sensor, turbidometer , pH meter, dissolved 

 oxygen sensor. The data is stored aboard the vehicle until it surfaces, 

 at this time it electromagnetically transmits the stored data to a mooring 

 buoy which subsequently transmits the data to a shore-base. 



Launch/Retrieval : Launched by a stiff-legged crane. Limits are Sea State 3- 

 Surface Support : The undersea vehicles are supported by a moored buoy, 

 a surface ship and a land-base. The moored buoy serves to collect supporting 

 data (current speed and water temperature) while the OSR-V is operating. 

 The moored buoy further serves as a station to receive data from the vehicle 

 when it surfaces and transmits the data to a land station where it is 

 processed. 



Status : Unknown (systems were constructed in 197^) 

 Builder: Mitsui Ocean Development and Engineering Co., Ltd. 



Tokyo 



Japan 



