NAP provides designs for passenger ships, mega-yachts and merchant vessels. Our design team has the ability to undertake all stages of ship design:

• Initial Design
• Basic Design
• Detailed Design

The process of ship design has an iterative nature that is most commonly described by a design spiral that reflects the design methodology and strategy.

The goals for the ship design are not the same for all ship-owners; NAP developed the tools and gained the experience to incorporate all different - conflicting requirements and expectations in its design mission.

NAP has the ability to convert the owner's dream into reality. At the early stages of the design our team determines the parameters that will form the basis for optimum ship dimensions, hull form development as well as propulsion system selection and auxiliary systems, according to the customer's requirements.

• Owners requirements
• Problem Definition
• Conceptual Design
• Initial G.A.
• Sketches and 3D Rendering
• Preliminary Specification

As well as:
Determination of main dimensions, Preliminary Hull-form design (Powering calculations), Preliminary Calculations (Stability, Damage Stability, Loading Conditions), Preliminary G.A. (Ergonomic Design and Preliminary Evacuation analysis), Preliminary Passenger Calculation and Payload Definition.

After the initial design and with the agreement of the Owner NAP can then undertake the Basic Design including:

• Finalization of G.A.,
• Approving & purchasing main equipments,
• Owner & Class approvals,
• Interior design work,
• Production planning,
• Final Calculations (Loading Conditions,
• Stability - Damage Stability Calculations,
• Electric Load Balance,
• Heat Balance plus all calculations required by the Class and Authorities),
• Finalization of Specification and Shipbuilding Contract.

NAP has also the ability to evaluate shipyards on cost, quality and production methods in order to assist the Owner on shipyard selection.

In NAP, we prepare the optimum structural configuration of ship dimensions. Our aim is to optimize structures in terms of cost and weight while complying with Class and Administration rules. NAP is also responsible for developing suitable structural configurations for workmanship, vibration and increased passenger comfort.

Detail engineering covers the following disciplines:

• Hull - Deck outfitting - Interior - HVAC - Machinery - Electrical
• Mid-ship section design - Typical transverse and longitudinal section details Ship structure design and preparation of general steel construction drawings Shell expansion and Profile and Decks design.
• Engine room arrangement, foundation of main engine and other machinery equipment
• Preparation of fore and aft structural details
• Design of signal masts and crane columns
• Design ramps for loading / unloading, hatch covers and special structure configurations.
• Machinery Arrangement, Piping and Outfitting
• NAP has long experience on producing outfitting and one-line diagrams of the main and auxiliary engines of the ship as well as for all piping systems of the vessel. Our work is characterized by its principals on safety, ergonomic design and environmental protection.
• Calculation of the equipment capacities and selection of equipment
• Propeller and rudder design as well as shaft systems arrangement
• Heat Balance calculations, Air Capacity calculations, Heating coil length
• Design of ladder, railway, windlass-mooring arrangement and other deck equipment
• Piping diagrams design
• A/C calculations as well as design of exhaust and ventilation ducts
• Preparation of ship-board manuals
  Fire and Safety plans for Class and Administration
• Preparation of docking and painting plans
• Pressure Drop calculations

NAP has a vast experience on ship stability (intact and damaged) calculations and naval architecture calculations. Our naval architects analyze, understand and adapt to changing and developing rules in ship design. Research and development is undertaken in order to develop new software for upcoming regulations.
Some of our services:

• Preparation of ullage and sounding tables, tank capacities calculation
• Calculation of hold capacities for trimmed and untrimmed ends, calculation heeling moment
• Hydrostatic calculations, Cross curves and trim tables
• Inclining experiment executing and preparation of the experiment report
• Freeboard calculation
• Trim & Stability calculations, Trim & stability booklet according to IMO
• Damaged stability calculations for all kind of vessels (Deterministic and Probabilistic SOLAS 09)
• Allowable bending moments calculation and sheering forces
• Longitudinal strength calculation
• Loading manuals preparation
• Cargo Securing Manual, Garbage Management

The majority of NAP's projects is conversions of existing ships due to:

Refurbishment - Rule upgrading - Increasing Capacity - Complete Make-over.

Our company has converted more than 35 passenger and cruise vessels along with an increasing number of mega-yacht conversions lately.

We have wide experience in conversion projects from different types of ships and from small refurbishments to lengthening and capacity increase projects up to major conversions with completely new purpose of the delivered ship.

• Feasibility evaluations, conversion / newbuilding
• Technical evaluation of existing ship
• Definition of conversion, Possible options, Arrangements
• Project Management
• Required basic design and approvals
• Planning
• Technical purchase
• Supervision at the site
• Final delivery approvals