Page 52: of Marine Technology Magazine (May 2021)

Hydrographic Survey Sonar

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Tech File

Innovative new products, technologies and concepts

Mariscope launches Balmoral’s Offshore Wind New Gyroscope from its new ROV Flunder Cable Stability System Silicon Sensing

The new Flunder model from Mari- With recent publicity surrounding Silicon Sensing announced a new gy- scope was launched worldwide, an offshore wind cable failures, Balmoral roscopes, the CRS39A which was de-

Observation Class/Light Work Class Comtec says its integrated cable protec- signed for use in severe environments category ROV. The new model is based tion stability system offers up to 75% including downhole drilling ops. This on the Commander MK III. The Flun- reduction in subsea cable movement upgrade of Silicon Sensing’s established der, in its standard version, incorporates helping prevent damage. The stability CRS39 gyro includes a move to a single six 400W thrusters, four horizontal, solution, which complements Balmoral board, from two. This has reduced the two vertical. and a modi? ed control FibreFlex, its patented cable protection unit’s mass by 40% and allows it to be system. The power of the motors can be system, offers enhanced tensile and installed far more easily in space-limited increased on demand up to 900W each. creep performance by using weighted applications, such as the 25mm diam-

These features, together with its low modules to improve cable curvature re- eter cylinders typically used in down- pro? le that reduces its hydrodynamic sponse while maintaining system geom- hole drilling equipment. CRS39A also resistance (its dimensions are 100 x 120 etry over life. Even in the most extreme incorporates upgraded micro electro- x 40 cm), gives it a speed of 3-5 knots. environments a 50% reduction in subsea mechanical systems (MEMS) and elec-

Flunder will come in standard 500m movement is achieved that more than tronics, including new drive electronics version, with a 1000m version available. doubles cable lifetime performance. and improvements to the sensor head.

Sonardyne’s Gyro

USBL completes the Ranger 2 pack- age onboard the research vessel


Sonardyne 52 May/June 2021

MTR #4 (50-63).indd 52 5/27/2021 12:14:01 PM

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