Armada Technologies’ approach to air lubrication was featured in the Day 3 edition of the HANSA Daily SMM Newswire, published during SMM 2026 in Hamburg.
Under the headline, “Armada targets predictable air lubrication performance,” the article examines an important shift taking place within the maritime industry: moving beyond headline efficiency figures toward understanding what an air lubrication system can reliably deliver under a vessel’s actual operating conditions.
Looking Beyond a Single Performance Figure
The performance of an air lubrication system can be influenced by hull form, speed, draught, loading condition, sea state and the vessel’s wider operating profile. Results achieved under controlled trial conditions may therefore provide only part of the picture.
For shipowners evaluating the technology, the more useful question is not simply, “What is the highest saving achieved?” It is:
What net benefit can the system deliver across the conditions in which this vessel normally operates?
Answering that question requires vessel-specific analysis supported by multiple forms of evidence, including computational fluid dynamics, towing tank trials, cavitation tunnel testing, modelling and full-scale vessel validation.
This broader evidence base is central to Armada’s work to strengthen the performance prediction capabilities behind its Passive Air Lubrication System (PALS).
A Wider Operating Window
As the HANSA article explains, PALS uses the vessel’s forward motion to drive seawater through internally mounted venturi pods. Each pod draws air from above deck, creates an air-water premix and introduces microscopic bubbles into the hull boundary layer to reduce frictional resistance.
Because PALS does not depend on energy-intensive compressors, it reduces system power consumption, maintenance requirements and complexity. It also avoids the need to deduct substantial compressor demand when calculating net vessel savings.
Independent pod control allows air delivery to be adjusted as operating conditions change. This is intended to maintain effective air distribution across a broader range of speeds, draughts and environmental conditions—not only at a limited design point.
That wider operating window is particularly important for vessels that spend significant time away from their maximum or design speed. Savings achieved during a short trial have limited value if the system cannot perform effectively across the vessel’s normal trading profile.
Building Confidence Through Full-Scale Evidence
Predictable performance cannot be established through modelling alone. Full-scale operating data is essential for understanding how a system responds to the complexity of real vessel operations.
Armada is combining engineering analysis with an expanding body of operational data from its first commercial installation aboard the LNG carrier Kool Husky. This evidence is being used to assess performance across changing speeds, draughts and environmental conditions and to improve vessel-specific predictions for future installations.
The objective is not to apply one vessel’s results broadly across every ship. It is to develop a more rigorous understanding of the factors that determine performance—and provide shipowners with realistic expectations for their own vessels.
We thank HANSA for featuring Armada Technologies in its Day 3 SMM Daily Newswire and for helping advance the industry discussion around predictable, independently assessed air lubrication performance.
Interested in understanding whether PALS is suited to your vessel and operating profile? Request a vessel-specific energy efficiency assessment from Armada Technologies.
