Viking LifeCraft Put to the Test
Viking's new LifeCraft system, a hybrid system intended to replace lifeboats/liferafts, was recently put to the test and passed some very demanding conditions.
Developed over the last 10 years by VIKING Life-Saving Equipment the new evacuation system unites the advantages of modern lifeboats – such as self-propelled maneuverability – with the flexibility, comfort and smaller footprint of today’s liferafts combined with marine evacuation systems.
The solution comprises two main elements: four inflatable VIKING LifeCraft survival crafts each with a capacity of 203 persons, so 812 in total, and a fully self-contained stowage and launching appliance either placed on deck or built into the ship’s side. And it’s packed with a long list of innovations that take the system far beyond the capabilities of existing lifeboats, marine evacuation systems or liferafts.
The perfect storm – and the perfect test
“The HWST involved launching and testing how well the LifeCraft system performs in high winds, stormy seas and extreme weather conditions,” explains Niels Fraende, VP Cruise & LifeCraft. “We launched the LifeCraft with the ship heading 3 knots up against the wind, exposing the system to the full force of the fierce weather in the most critical test phase. We then demonstrated – with a simulated dead ship condition – that the fully loaded LifeCraft system provides a safe and stable means of evacuation in both the weather and lee side for several hours.”
“In addition, we quickly and successfully maneuvered the LifeCraft survival crafts on both sides of the vessel to a safe distance, demonstrating their built-in flexibility to move rescue-capacity to wherever it is most needed. Simulating station-keeping while waiting for rescue, we performed a 24-hour controlled drift test in the battering seas with no damage sustained to the survival crafts.”
Heavy weather is exactly what nature delivered at the testing location on the North Sea between southern Norway and United Kingdom. In fact, after being ballasted with 70 tons to simulate full capacity, the LifeCraft was subjected to brutal wind gusts with speeds of up to 18 m/s in addition to significant wave heights of between 3.6 and 4.6 meters.
Towering peak waves of 10 meters greatly exceeded the required 3 meters needed for the trials, with the personnel from VIKING and DNV GL battling sea-sickness and heaving decks to conclude the tests.
The HWST consisted of multiple phases, all of which were witnessed and approved by the attending DNV GL senior surveyor acting on behalf of the Danish Maritime Authority. And, with the toughest test ever behind VIKING, Niels Fraende is elated that the LifeCraft system performs so well under such demanding conditions.
“The LifeCraft exhibited superior maneuverability, sailing away from the ship much faster than required. We achieved this with the wind at our front as well as our backs, which makes it an even more impressive feat,” says Niels Fraende.
The tests demonstrated, too, that the system’s flexible chute arrangement could easily cope with the ship’s list and trim, providing exceptional stability despite the highly dynamic sea state. With its four electric motors, one positioned at each corner, the fully loaded LifeCraft was swiftly maneuvered to a safe position within minutes of disengagement from its position along the ship’s side.
The trial afforded crew members the opportunity to demonstrate, under extreme conditions, the capability of the chute arrangements that provide a controlled vertical passage from the embarkation point to the LifeCraft survival crafts. All landed safely at the expected evacuation speed, dry and unperturbed by the elements.