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ROCK 85 is a design beauty of the famous Dutch design company Vripack and built by Evadne Yachts.

We have provided project management services to Evadne Yachts for ROCK I, ROCK II, and ROCK III so far. ROCK IV and ROCK V  are currently under construction with our project management services for entire building process


Although she is 25 meters long, she has 170 m² of interior space and 140 m² of exterior area. She is capable of accommodating 8 guests simultaneously, and the owner's cabin is arranged on the main deck with panoramic view windows. Thanks to Vripack's super displacement hull, she is a seaworthy vessel for open sea cruising. ROCK has a fuel capacity of 12,000 liters, which allows her to cover a distance of 3,000 nautical miles at an economic speed.

ROCK is also an environmentally friendly boat with Mastervolt lithium-ion batteries. With this system, there is no need to run generators during the night. Throughout the night, the air conditioning and stabilizer systems can operate using the lithium-ion batteries. This idea also offers the advantage of reduced generator usage throughout ROCK's lifespan, resulting in increased fuel efficiency and less noise on board.

ROCK is also an assertive yacht, considered to be the safest pleasure craft under 24 meters. The sprinkler system ensures interior fire safety, while FM200 protects the entire engine space. Central bilge and fire fighting systems are other advantages of the yacht.

She is an innovative yacht that utilizes the latest technology. All onboard systems can be controlled via a wireless alarm monitoring system. Humphree's innovative fin stabilizers and interceptors contribute to her stability while underway and at anchor.

Tufan and Brothers have prepared all structural calculations and shop drawings, along with a full set of mechanical engineering plans.


26 m


6.5 m


1.8 m


Steel & Aluminium


2018 (ROCK I)

2020 (ROCK II)

2022 (ROCK III)

2024 (ROCK IV)

2025 (ROCK V)

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