Vestdavit has secured orders to provide davits for three Esvagt Service Operations Vessels (SOVs) destined to support wind farm maintenance in North Sea conditions.
Developed by Havyard Design & Solution and built by Havyard Ship Technology, the Esvagt trio will be delivered in 2020-2021.
“These are repeat orders, demonstrating that Esvagt has been very happy with the quality and competitiveness of vessels delivered from the Leirvik yard,” said Rolf Andreas Wigand , Managing Director, Vestdavit.
“We are therefore especially delighted that Hayvard has switched its boat launching and recovery system preference for these latest high performance SOVs. This will also bring the number of Esvagt vessels equipped with davits from Vestdavit over a three year period to six.”
Each of the SOVs will be equipped with one PAP-16000 Workboat davit with emergency launch capabilities, one PLRH-5000 SOLAS davit, two L-3500 Liferaft davits and one Telescopic painter boom, with all equipment to be delivered by 2020.
“More and more, windfarm development is taking place further from shore, increasing the need for specialised vessels to transport personnel to the turbine in demanding conditions. Boat launch and recovery requires special attention to match expectations for the SOV and ensure that crews are comfortable and safe when sea states are high,” Wigand said.
In the configurations delivered to Esvagt, both the PAP-16000 and PLRH-5000 davits will be able to perform in sea states up to 6.
With SWL of 16,000KG, the PAP-16000 is Vestdavit’s largest single point davit and uses a docking head to fix the boat into position during the lifting and lowering process. It is designed to handle Esvagt’s large STB12 workboat fully equipped. To do this in challenging seas, the davit will offer lifting speeds of 45m/min and is equipped with shock absorbers and a constant tension system. It will also be supported by a long-outreach telescopic painter boom with a winch to provide adjustable tension on the painter line.
The PLRH-5000 davit will be used to launch and recover its own STB7 boat. The unit achieves lifting speeds as high as 60m/min and is equipped with shock absorbers, a constant tension system and hydraulic guiding arms.