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  You are here: Home >  00C2 >  Assets >  CURV 21



Curv CURV-21 is a 6,400-pound Remotely Operated Vehicle (ROV) that is designed to meet the US Navy's deep ocean salvage requirements down to a maximum depth of 20,000 feet of seawater. This vehicle is loaded with a host of new technologies and was built as a direct replacement for CURV-III but with a smaller overall system footprint.

ORION and CURV-21 can be combined into a single integrated search & recovery system capable of being deployed on a USNS T-ATF. The system is based on a .680 fiber-optic umbilical cable and a shared handling system that can switch at sea between side-scan sonar and ROV operations. The system is self-contained and fly-away transportable for world wide response on vessels of opportunity.

The ROV can be controlled in all six degrees of motion with auto-control functions for depth, altitude, and heading. An integrated DVL allows 1 and 2 meter incremental movements as well as cruise control for extended axial movements. The vehicle is equipped with CTFM sonar for target location and pinger detection. The ROV uses two seven function rate manipulators. It has a high-resolution digital still camera, black and white, and color television cameras. The system includes a load bearing, pressure compensated, Electro-Optical Umbilical Swivel.

The fiber optic multi-plex system can combine up to eight channels of video, sonar, USBL, RS-232/422/485 data communications, and navigation data on a single fiber. 2 spare fibers are available subsea for additional sensors. A digital communications network with a data capacity of 400 MHz controls the vehicle and has significant capacity for future expansion. The system is designed to interface easily with additional sensors or tool packages using standard data formats.

For special operations, the ROV can accommodate customized tool packages. These packages can include, but are not limited to specialized salvage tools, instrument packages, or other mission-oriented equipment.


Length - 8 ft
Width - 5 ft 0 in
Height - 7 ft 0 in
Weight - 6,400 lbs

Depth - 20,000 ft of seawater
Speed - 2.5 knots
Power - 45 Hp
Auto Controls - Depth, altitude, heading, cruise, auto translate
Lift Capacity - 4,000 lbs via ROV frame & umbilical (releasable)
Payload - 240 lbs.

Manipulators & Tool Packages
Two 7-function Schilling ORION Manipulators rated at 150lbs @ 5ft.
Custom tool packages: Guillotine cutter, rotary grinders & tools, and T-handle shackles w/ heavy rigging.


   1 x Electronic Gyrocompass
   1 x Attitude and Heading Reference Unit
   1200 kHz Doppler Velocity Log
   1200khz Doppler Velocity Log
   Altimeter, 200Khz
   Ultra Short Baseline Tracking ( 17Khz)
   Emergency Locators - Acoustic beacon -37.5 kHz
   Strobe flasher - high intensity Xenon (100-hr life)
   Radio Direction Finder

   CTFM with 2000 ft. maximum range with pinger locator
   (27/37/45 khz)

   1 x 460 Kongsberg 1364 color video on pan and tilt
   1 x 400 Black and white Fixed pilot camera
   1 x 3.3 Meg Pixel Digital Still with strobe

   4 x 250 Watt Halogen fixed
   2 x 400 watt HMI

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