SFYC Araya was one of the first full Eco Boss Cap installations and was used to take the concept from optimisation and manufacturing into onboard retrofit. The project included vessel-specific CFD development, manufacturing drawing issue, casting and machining, factory acceptance testing, and drydock installation.

Post-installation operational analysis comparing before-drydock and after-drydock performance, with fouling correction applied, reported main engine power reductions of 3.1% at 12.0 knots and 3.7% at 12.5 knots. This makes SFYC Araya the first installed reference case with measured in-service evidence.

LUENHO demonstrates Eco Boss Cap development for a stern arrangement including a rudder bulb. The project included a dedicated vessel-specific design, manufacturing, FAT and installation sequence.

This is an important reference case showing that Eco Boss Cap can be adapted to more constrained stern geometries rather than only conventional open arrangements. In-service performance data demonstrated 3% saving as reported by fleet performance team of the ship owner using high frequency shaft monitoring system and benchmark comparison against 8 sister vessels that are also recently drydocked.

YC FORTITUDE is the third installed Eco Boss Cap case and provides strong visual evidence of repeatable delivery, covering manufacture, casting, fit-up, and drydock installation on board.

KIAN is the fourth full Eco Boss Cap installations and was used to take the concept from optimisation and manufacturing into onboard retrofit. The project included vessel-specific CFD development, manufacturing drawing issue, casting and machining, factory acceptance testing, and drydock installation.

The Kamsarmax study is a useful website case because it shows the potential of Eco Boss Cap on a larger bulk carrier class beyond the currently installed references. The Kamsarmax case-study achieved fuel savings of up to 3.2% by usng CFD optimization.

This CFD study is important because it extends the Eco Boss Cap application to a container vessel configuration. The conducted CFD optimization demonstrated 3.12% overall efficiency improvement for the Eco Boss Cap design under the target operating condition.

The City of Hamburg study provides another useful Controllable Pitch Propeller vessel CFD example. The numerical study achieved 3.31% overall efficiency gain after optimisation across more than 200 investigated geometries.