Products

A-Frames

Custom stern and side A-Frames, L-Frames and T-Frames to launch, recover and handle loads safely in any marine operation.

FERRI A-Frames are designed to provide safe, reliable and efficient solutions for the launch, recovery and handling of loads in demanding marine environments. Every system is custom-engineered to suit the vessel’s characteristics, available deck space and specific operational requirements, ensuring dependable performance even under the most challenging operating conditions.

Our in-house engineering capabilities enable us to design and manufacture custom A-Frames tailored to the structural and operational requirements of each vessel. In addition to conventional A-Frames, FERRI also develops L-Frames, T-Frames and fully bespoke frame configurations to meet the specific needs of every project.

Our systems are designed for handling ROVs, CTD Rosettes, oceanographic equipment, cable-laying systems, workboats, fishing gear, hydrographic survey equipment and virtually any load requiring safe and precise handling. Depending on the application, A-Frames can be equipped with hydraulic folding systems, deck travelling arrangements, integrated winches, large-diameter sheaves for umbilical cables, docking-head systems for underwater vehicle recovery or modular configurations that optimise both operational efficiency and onboard stowage.

Installed on research vessels, cable-laying vessels, hydrographic survey vessels, fishing vessels, offshore support vessels, workboats, superyachts and other specialised ships, FERRI A-Frames combine advanced engineering, robust construction and ease of operation to deliver reliable, long-lasting solutions seamlessly integrated with the vessel’s deck equipment.

Designed and manufactured to comply with project-specific regulations and classification society requirements, every FERRI A-Frame is engineered to maximise operational availability, minimise maintenance requirements and provide reliable performance throughout its service life.

Defence

A-Frames for Defence

The military naval environment demands equipment that leaves no margin for error. FERRI A-Frames are designed to ensure safe and precise operations in the most demanding scenarios, adapting with millimetre precision to the strict structural constraints of military vessels and their rigorous service conditions.

Our equipment provides support vessels and warships with the robustness, availability and reliability needed to ensure mission success. By integrating our full range of handling technology (travelling, folding and docking-head systems), we facilitate the tactical deployment and rapid recovery not only of underwater vehicles and hydrographic equipment, but also of unmanned surface vehicles (USVs), turning the deck into a highly efficient and safe operating platform.

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A-Frames

Completed projects

Ships and programmes for which FERRI designed and built this equipment. Tap each one to see the challenge and the solution.

Sarmiento de Gamboa · Stern A-frame for ROV and telescopic boom for CTD

Spain · CSIC · Oceanographic vessel

Sarmiento de Gamboa

Stern A-frame for ROV and telescopic boom for CTD

The challenge

Launch and recover an ROV and the CTD rosette, coordinated with the winches on board.

The FERRI solution

A stern A-frame designed to handle the ROV at sea, with a winch built into the structure for its manoeuvres. A telescopic boom that brings the rosette down to the waterline.

The ship

Built by Freire in Vigo (launched in 2006) and operated by CSIC's Marine Technology Unit, based in Vigo.

Other FERRI equipment on board

Hydrographic side A-frame for core drills, articulated arms and auxiliary equipment for seismic work.

Certification Bureau Veritas

Ocean Researcher V · Stern A-frame

Taiwan · Oceanographic vessel

Ocean Researcher V

Stern A-frame

The challenge

Launch and recover oceanographic research equipment, large ROVs included.

The FERRI solution

Large-diameter sheave for the umbilical signal cable and large-scale structures to operate big ROVs.

Other FERRI equipment on board

Telescopic boom, side A-frame, slewing fairlead for the wire to each A-frame.

Iberus · Stern A-frame with stabiliser for plough

Spain · Cable ship

Iberus

Stern A-frame with stabiliser for plough

25 t plough at 1,500 m

The challenge

Launch and recover the plough that buries fibre-optic cable at depths of up to 1,500 m.

The FERRI solution

A-frame for a 25 t plough with stabilising docking head and wide swing to release winch tension while towing; a travelling head on the crossbar stows the plough clear of the cable-laying line.

Other FERRI equipment on board

Stern guide rollers for the tow cable and offshore crane for ROV handling.

Certification Lloyd's Register

Clara Campoamor and Don Inda · A-frame for recovering wreckage and drifting objects

Spain · Spanish Maritime Safety Agency · Ocean-going rescue tugs

Clara Campoamor and Don Inda

A-frame for recovering wreckage and drifting objects

100 t 11.7 m long, 8 m high

The challenge

Recover shipwreckage and other large drifting objects from the sea.

The FERRI solution

A-frame for loads up to 100 t, interchangeable between the twin ships, with hoisting winch. Design approved by DNV, construction by BV. On board too, FERRI towing gear: 400 t tow pins with a 500 t fork and a 250 t hook with remote release.

The ship

Two 80 m, 20,600 hp tugs of the Spanish Maritime Safety Agency, in service since 2006 and 2007.

Certification DNV · BV

Intermares · A-frame to launch and recover a fishing boat

Spain · Navigation and fishery training ship

Intermares

A-frame to launch and recover a fishing boat

45 t fishing boat

The challenge

Launch and recover a complete fishing boat from the training ship.

The FERRI solution

A-frame for boats of up to 45 t, raised by hydraulic cylinder. Certified by Bureau Veritas.

Other FERRI equipment on board

Articulated crane, boat davits and gangway.

Certification Bureau Veritas

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