Page 89: of Maritime Reporter Magazine (April 1998)

ble and flexible work platform for cablelaying, underwater research and seismic survey duties. In the case of the series of seismic ships operated and ordered by

Norwegian-based oilfield services specialist Petroleum Geo-Services (PGS), the design reaches its max- imum beam at the stern, to the extent that the extreme width cor- responds to about half the overall length.

PGS holds exclusive licenses for building seismic vessels, FPSOs and drilling/well intervention ves- sels incorporating the Ramform design conceived by Roar Ramde, head of the Horten-domiciled naval architecture firm Ariel.

Costing approximately $80 million apiece, the recently delivered

Ramform Valiant and Ramform

Viking are the third and fourth vessels in PGS' series of six seismic vessels encapsulating the innova- tive concept, all of which have been ordered from Western Norway's

Langsten Group.

Technological progression through the class is expressed in the 20-streamer capability offered by each of the latest duo, compared with the 12-streamer array in

Ramform Explorer, which made its debut in 1995, followed by the 16- streamer capacity in the 1996- commissioned Ramform

Challenger.

Products of the integrated ship- building system used by the

Langsten Group, whereby the hull was constructed at the affiliated

Tangen Verft's Kragero premises and transferred to the headquar- ters yard at Tomrefjord for outfit- ting and completion, Ramform

Valiant and her sistership are a response to growing demand for 3-

D seismic data. The vessel type constitutes an efficient tool which enables the offshore industry to identify and quantify reserves of oil and gas, and to optimize exist- ing fields. The astonishing form is also embodied in the $200-million

Ramform Banff FPSO, scheduled to provide an initial 95,000-bpd crude oil production and process- ing capacity on the North Sea from mid 1998. Built in South Korea by

Hyundai Mipo Dockyard (HMD), (Continued on page 83)

Autronica's new alarm

Autronica Launches

New Interactive

Fire Alarm System

Autronica, which has a penchant for delivering leading edge products, intro- duced its

AutroSafe

SelfVerify decen- tralized fire alarm system recently in

Miami. Sporting a stylish new look, the units entail far more than a cosmet- ic upgrade, and the manufacturer esti- mates that they can save up to 30 per- cent of cabling. A complete new range of interactive detectors and inter- face units for any application are included, and the SelfVerifying detec- tors are designed to increase reliability and reduce maintenance dramatically.

Every new detector includes both a smoke chamber for detection of smoke and a heat detection unit which can also be used for temperature measure- ments.

Circle 96 on Reader Service Card

Compact Power for

Marine Applications

Hagglunds Drives is a supplier of hydraulic drives for the marine and offshore industry and tough industrial applications.

Hagglunds Viking motors have been used on winches on board ships for more than 30 years working in tropical heat or arctic cold. In tough marine environments, day after day, year after year.

Now we have introduced the Compact motor, a smaller and lighter motor who is tailored for applications like these. The hydraulic motor is attached directly onto the drive shaft or winch drum without any gearbox or foundation.

It can be controlled fully across its entire speed range, and provides full torque from standstill to maximum rotational speed.

Furthermore, it is insensitive to shock loads and tough environments, and it stops right when you want it to, thanks to it's extremely low inertia. Direct hydraulic drives is about as maintenance-free as you can get.

Extremely powerful. And still extremely compact.

The new line of COMPACT motors has a power to weight ratio of around 1.5- 2.0 kW/kg (0.9-1.2 Hp/lb). For the first time there's a motor that lives up to the true meaning of the concept of compactness.

Send for a free brochure today and find out more about the Compact motors and what we can do for you.

Hagglunds Drives AB, S-890 42 Mellansel, Sweden. Tel +46 660 871 00. Telex 6084 HAEGG S.

Telefax +46 660 871 60

Circle 238 on Reader Service Card

HAGGLUNDS

DRIVES

April, 1998 81