Specifications last verified
About this tender
The Alen 55 is a 16.8m chase boat from Alen, built in Istanbul, Turkey: IPS power, 35 knots, 16 guests and 280nm of range.
The Alen 55 is the build we ask the Turkish yard for when a programme calls for a serious day boat or mothership tender that can carry sixteen persons in genuine comfort rather than on paper alone. At 16.80 metres with a 4.80-metre beam, it sits in a part of the market where deck volume and interior volume can coexist without one cannibalising the other.
Propulsion is twin Volvo IPS 800, a pod-drive arrangement that delivers 35 knots at the top end and a practical cruising speed of 30 knots with a quoted range of 280 NM on the 2,150-litre fuel load. That is a credible coastal and short-passage number - enough to cover an owner's programme without a fuel stop at every port.
The hull is full composite with AIREX core, which gives the 55 a displacement figure of 21 tonnes without the weight penalty you would carry in a glass-over-foam or solid-laminate structure. The walk-around deck, deep bulwarks, and a hydraulic gangway that doubles as a swim ladder are practical details that hold up in daily use rather than just in a brochure photograph.
Below decks the layout can be configured to include a crew cabin or an additional guest cabin, and the lounge sofa converts to a double berth. Storage is generous by the standards of this length. The finish spec - teak sole, leather wall panels, lacquered surfaces - is what you would expect from a yard positioning itself alongside the established Italian volume builders.
Highlights
The four details we'd point out first to a captain who hasn't seen one on the water yet.
The 55 is built on a full composite structure with AIREX foam core, keeping displacement to 21 tonnes at 16.80 metres. That laminate approach delivers a stiffness-to-weight ratio that matters at 35 knots and keeps the hull honest over a long ownership cycle.
Volvo IPS 800 pods give the 55 joystick docking, a tight turning circle, and a clean underbody free of conventional shafts and struts. Thirty knots at cruise and 35 at the top end are achievable figures for this displacement and power combination.
The 2,150-litre fuel capacity supports a 280 NM range at cruising speed, which is a meaningful number for coastal programmes. Sixteen persons on board with that range gives the 55 genuine passage-making credibility as a chase or support vessel.
The aft hydraulic gangway is designed to double as a swim ladder, removing the need for a separate fitting and keeping the transom clean. It is the kind of detail that simplifies daily operations for a small crew.
The 55 holds CE Category B certification, covering offshore passages up to sea state five and wind force six. That puts it in the range relevant to owners operating in exposed coastal and open-water programmes rather than sheltered coastal day-use only.
Gallery
The full specification
Specifications, prices, availability, and performance figures are supplied for guidance only and remain subject to confirmation by the yard, seller, broker, survey, contract, and final specification.
Questions, answered
Last call · New build
Alen · Istanbul, Turkey
Tell us about your yacht, your programme, and the missions 55 needs to handle. We come back within 48 hours with a written assessment - fit for the brief, lead time, and trade-offs against alternatives in the same band.
Prefer to talk? +44 (0) 77180 88055 · other ways to reach us
Check the Alen 55 against your tender-garage envelope: length, beam, height and crane limit, in seconds, then attach the result to your enquiry.
From the library
