Reader Feedback: Lander Lab #4 - Underwater Releases
to 1,000,000-lbs are available.Pyrotechnic cutters, courtesy PacSci EMC.A Pyrotechnic Cutter uses a gas generating charge and a cutting blade to sever objects. When initiated, the cutter will sever a multitude of materials and cross-sectional shapes including electrical or fiber optic cables, steel wire rope, bolts, tubes and woven or braided fiber cords, lines and straps.A Pyrotechnic Pin Puller is used to toggle latch releases, pull locking pins or move mechanisms to perform work.For more information, go to the PacSci EMC.Click here to read the most recent insertion in the Lander Lab series: Lander
Lander Lab #4: Underwater Releases
burnwire started. The scheme worked.Burnwires can be expensive, but lack of practice or training can be more so. Experience provides confidence and competence. A simple solution is to make “training burnwires”. These are a 12” length of jacketed stainless steel wire rope (JWR), one end stripped about 3/8” for electrical connection, the other end sealed with a layer of marine grade heat shrink, overhanging and pinched flat on the end to seal it. The center of a heavy steel hex nut, like a ¾-16 thread, is filled with 5-minute epoxy. After the
MDL and Jumbo Conclude GoM Mooring Installation
the meantime, an installation of a sheathed Spiral Strand Wire Rope (SSWR) in the APAC region is using an MDL mooring spread with a 4-track tensioner as the master system to moor in an FPSO.To date, MDL equipment has installed over 145km of polyester rope, as well as torpedo anchor pennants SSWR and steel wire rope, across three continents
ROVs: Superyacht Security Success for Falcon
with advanced video and sensor systems that can integrate into MarineGuard’s security network.As an underwater workhorse the Falcon is fitted with a gripper for recovering items from the seabed, with other tools added as needed. Tools such as rope cutters for severing 15mm rope and 12mm steel wire rope, powerful manipulators and cleaning systems for keeping critical fittings clear.As the ‘eyes underwater’ for superyacht owners, the Falcon is fitted with high definition cameras and can roam deep underwater transmitting live images direct to stateroom screens on board. In addition
Saab Seaeye Cracks into the Superyacht Security Market
the underwater world live on stateroom large screens, from images transmitted by a roaming Falcon. As an underwater workhorse the Falcon is fitted with a gripper for recovering items from the seabed, with other tools added as needed. Tools such as rope cutters for severing 15mm rope and 12mm steel wire rope, powerful manipulators and cleaning systems for keeping critical fittings clear.Diver safety is a key benefit. As a dive buddy, a Falcon can survey a dive site and then watch over the diver when below. It can also transport items back and forth during a dive.A Falcon can watch over a diver and
Innovative Subsea Crane Ordered for RSV Conversion
supply vessel (PSV) into a ROV Support Vessel (RSV). As part of the conversion project, CBO has assigned Rolls-Royce to equip the vessel with a new patented hybrid dual draglink (DDC) subsea crane, marking the first installation of a subsea crane designed to be able to use either fiber or steel wire rope. Marcelo Martins, CBO, Technical Director said, “This is one of two vessels CBO is now retrofitting from PSVs to RSVs, and we are very satisfied about the flexibility of the crane from Rolls-Royce. A hybrid solution, with use of either fiber or wire, makes the vessel better prepared
FRV for Bangladesh
diverse capabilities, with a net roller, trawl gallows and twin 2,000m capacity single drum net winches, each capable of eight tons pull at 22m per minute, located aft to support stern trawling. Central to all trawling operations are a pair of trawl winches, each of which can store 2,400m of 16mm steel wire rope and provide 10 metric tons pull at 22.5m per minute. Bottom, mid-water and shrimp trawl nets are of Korean design manufactured in Malaysia by Jaya Nets, while the otter boards are from BMI in Korea. Forward of the trawl winches, beneath the shelterdeck, there is a stainless steel/aluminum semi-contac
MTR100: Allspeeds Ltd
, umbilicals and fiber rope, Allspeeds’ cutting tool design allows for easy positioning of the cutter and is ideal for operation in confined spaces. In addition to blade-on-anvil cutting, recently Webtool has developed a new blade-on-blade cutting design that maintains the roundness of the steel wire rope cross-section makes it much easier to re-use cut ropes during drilling operations. Email: [email protected] www.allspeeds.co.uk (As published in the July/August 2016 MTR100 edition of Marine Technology Reporter
Fiber-rope Retrofit Extends Subsea Crane Capabilities
MacGregor, part of Cargotec, has launched a fiber-rope retrofit option for its subsea cranes; the modular upgrade replaces the crane's original steel wire rope with synthetic fiber rope, using the same technology as MacGregor’s fiber-rope crane, the FiberTrac 1500, introduced earlier this year. These cranes combine MacGregor's offshore crane technology with the fiber-rope tensioning technology perfected by Parkburn Precision Handling Systems. According to MacGregor, fiber rope’s advantage when used in this context is that it weighs virtually nothing in water, so regardless of the
February 2025
