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you are here: Home > > Assets > MINIROVs
The control room of the Rockwater 2 watching the action as the sunken Japanese fishing vessel Ehime Maru is lifted and moved approximately 14 miles into shallow water so that Navy divers could recover the missing crewmen.  Credit: U.S. Navy Photograph by PHC(SW/NAC) Spike Call
00C2 Assets - MINIROV page title


 
 

MINIROVs

MR1 (left) and MR2 staged on deck The three MINI-ROVs are standard commercial Remotely Operated Vehicles (ROVs) used to meet the Navy's requirements down to a maximum depth of 1,000 feet.

The systems usually consist of the vehicle, umbilical cable, handling system, generator and operations/maintenance van. Navigation is accomplished with an ultra-short baseline acoustic tracking system. Generators can provide 120-vac power for the systems if an alternate source is not available. A handling system is available for the larger, open frame vehicle (MRII). It is a compact, folding knuckle boom crane.

The operator controls the ROVs in all six degrees of motion with auto-control functions for depth, altitude, and heading. The vehicles are equipped with a high resolution imaging sonar and have a manipulator capable of working with simple tools. They have a 35mm still camera and a color video camera. For special operations MRII can accommodate some small tools or instrument packages. The systems are air transportable and can operate from any capable platform of opportunity.
GENERAL SPECIFICATIONS

Mini-ROV I & III


SIZE
Length - 4 ft, 8 in
Width - 2 ft, 3 in
Height - 2 ft, 1 in
Weight - 220 lbs

PERFORMANCE
Depth - 1,000 ft. of seawater
Speed - 3 knots
Auto Controls- Depth, altitude, heading
Payload - 20 lbs.

INSTRUMENTATION
Navigation
   Fluxgate Magnetic Compass
   Ultra short Baseline Tracing (23-30 kHz)

Sonar
   500 kHz High Resolution Pulse with 300 ft range

Cameras
   340 line color video on pan and tilt
   460 line high resolution (optional fixed camera)
   35 mm Still and Strobe


Lights
   (2) 150-watt Quartz Halogen


Cameras
   (1) 2-function manipulators


TOOLS
   Manipulators - 1 Benthos, 2-function


Open Frame Mini-ROV II



SIZE
Length - 4 ft, 8 in
Width - 2 ft, 3 in
Height - 2 ft, 1 in
Weight - 325 lbs

PERFORMANCE
Depth - 1,000 ft. of seawater
Speed - 3 knots
Auto Controls - Depth, altitude, heading
Payload - 990 lbs (300 lbs optional)

INSTRUMENTATION
Navigation
   Fluxgate Magnetic Compass
   Ultra short Baseline Tracing (23-30 kHz)

Sonar
   500 kHz High Resolution Pulse with 300 ft range
   Pinger locator (27/37.5/45 kHz)

Cameras
   340 line color video on pan and tilt
   460 line high resolution (optional fixed camera)
   35 mm Still and Strobe


Lights
   (2) 150-watt Quartz Halogen


Cameras
   (1) 2-function manipulators


Tools
   (1) 3-function manipulators
   Torpedo recovery Tool (optional skid)

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    Posted ACN-4A to the U.S. Navy Diving Manual Revision 6, Dive Computer Way Ahead in the United States Navy and Marine Corps.
  • 15 July 2008:
    Posted ACN-3A to the U.S. Navy Diving Manual Revision 6, Interspiro Divator SCUBA and Divator DP1 Apparatus, Approval for use by Navy Commands.
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  • 30 June 2008:
    Posted ACN-1A to U.S. Navy Diving Manual Revision 6
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    Posted NAVSEA Drawing 6698554 Rev (-), CG 47/DD 963/DDG 993 Port Stern Tube Sealing Cofferdam Fab & Installation
  • 25 June 2008:
    Posted NAVSEA Drawing 6699481 Rev F, CG 47/DD 963/DDG 993 Stbd Stern Tube Sealing Cofferdam Fab & Installation
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    Posted Updated of Pre-Survey Outline Booklet for US NAVY Surface Supported Diving Systems Lightweight Diving Systems (LWDS)
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    Posted Updated of Pre-Survey Outline Booklet for Fly Away Dive System (FADS III)
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    Posted Drawing 6699055 Revision B to Approved cofferdam Drawings
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    Posted Commercial Source and Recipe for Bintsuke on 00C5 Cofferdam Information
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    Posted Cofferdam Alarm System Operation Manual, Revision 1, dated 22 April 2008
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    Posted Diving and Hyperbaric System Certification Status Report for April 2008
  • 2 May 2008:
    Dive Manual Rev 6 Air Decompression MTT Training Package available in powerpoint form for download
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