Air Layer Drag Reduction uses controlled air injection to create a continuous or near-continuous air film beneath the hull. When the air layer remains stable, this technology can significantly reduce direct contact between the hull and water, supporting lower frictional resistance and improved vessel efficiency.
As part of a wider air lubrication system approach, ALDR offers high drag reduction potential for vessels with suitable hull geometry and operating conditions.
Air Layer Drag Reduction can offer strong performance potential, but it is highly sensitive to vessel operating conditions. A concept that performs well at one speed or draft may deliver different results across real operating profiles.
Many ALDR projects must account for:
GLO Marine supports ALDR feasibility, integration engineering, class documentation, and retrofit planning for vessels where this technology may be technically and commercially viable.
GLO Marine provides independent engineering support for Air Layer Drag Reduction projects, from early feasibility assessment to retrofit documentation and implementation planning.
Our team supports the full ALDR integration process, including hull-form and flat-bottom suitability review, air injection arrangement, auxiliary power assessment, automation and control integration, structural review, class documentation, and performance verification.
We help owners and operators determine whether ALDR is suitable for their vessel and define how the system can be implemented efficiently, with technical responsibility managed by one engineering team.
GLO Marine is an independent engineering provider and is not affiliated with any specific air lubrication technology manufacturer.
If you are considering Air Layer Drag Reduction for a newbuild or retrofit project, we can evaluate your vessel configuration and propose a tailored engineering approach.
This ensures:
Please include the Vessel Name, IMO Number, vessel type, main dimensions, service speed, draft range, operational profile, and any available hull drawings or general arrangement plans. This information enables our team to review your vessel and provide the appropriate technical solution quickly.
