Page 58: of Marine Technology Magazine (January 2021)

New Products

Innovative new products, technologies and concepts

OSIL Piston Corers Go Global

The range of piston coring systems available from UK based manufactur- er Ocean Scienti? c International Ltd (OSIL) has proven popular in recent months, with a notable increase in sales,

RTSYS shipments and enquiries, particularly for smaller systems under 10m in length.

SEMA MK-II

The Piston Corers operate in a very inside the core liner than in a regular

Within the framework of a similar manner to traditional gravity gravity corer system and prevents sedi- contract noti? ed by the DGA coring systems, with the exception of ment slump. The piston also reduces in- the piston itself, which acts as a plug ternal friction within the core liner and (French Directorate General of on the coring barrel array once the prevents clumping of the sample. This Armaments), RTSYS is carrying corer has been fully deployed into the ensures that the OSIL Piston Corer sys- on innovations initiated in 2011 sediment that, together with the core tems deliver a more well-de? ned sedi- regarding ASW training targets. As catcher, holds the sample more securely ment sample to the operator.

a result, two new training targets

SEMA-MKII were delivered to the

French Navy in September 2020, bringing to six the number of units

Airmar CM510L Transducer on duty within this Navy. Two

Airmar Technology introduce the other training targets are planned to

CM510L Cavity Mount Transducer, a be delivered in early 2021.

3 kW Chirp-ready transducer with low

These new SEMA MK-II targets frequency (25-50 kHz) Chirp capabili- strengthen crews training capa- ties. Suited for commercial ? shing ap- bilities in Anti-Submarine Warfare plications where bottom discrimination (ASW) by offering acoustic sig- and target resolution of bottom-? sh spe- nature simulation of a submarine, cies are critical to success, the CM510L and respond to latest-generation includes the popular 28 kHz, 38 kHz

LFA1 sonars and homing torpedo and 50 kHz ? shing frequencies, plus also includes Airmar’s patented Xducer heads, putting crew at the heart of all other frequencies in the band. The ID technology, which enables the trans- operational scenarios by surprising

CM510L operates in Chirp mode or on ducer to transmit important data about it with kinematic escapes.

discrete frequencies, and includes a fast- itself automatically to the connected

More compact than the Mark I, response water temperature sensor. It echosounder.

SEMA MK-II weighs 33 kilograms and measures 2.13 meters long.

SEMA MK-II can navigate down to 300 meters depth during 10 hours

Linden Buoyant Optical Cables at four knots (1.5 hours at 15 knots)

Linden’s patented BSTFOC are thin, thanks to its secured battery, high- rugged, buoyant optical cables that can capacity and easily rechargeable on ? oat on the surface, remain neutrally board. Navigation skills combined buoyant at depth or have controlled with GPS repositioning also offer density to sink at pre-determined rates. optimal and increased surface

These cables can be manufactured in localization conditions at the end lengths >40 km with no splices. Lin- of the mission. Various improve- den has used BSTFOC to manufacture ments have been quali? ed on this 30 km precision wound, inside-payout

Linden Airmar OSIL new standard such as safety of use, packs. The cables have been tested to from 1 to 1.5. The cables have been suc- safety in transport and on board, hydrostatic pressure of 4 kpsi, have an cessfully terminated with LC, SC, FC, data security, UHF surface localiza-

OD in the range of 0.9 to 1.1 mm and 50 ST, Greene-Tweed and Fischer connec- tion module, and more.

lbf tensile strength. SG can be tailored tors. Applications include ROVs.

58 January/February 2021

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