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Ocean Alexander 100 Skylounge (2018-)

2 x 2600-hp MTU 16v2000

Brief Summary

The Ocean Alexander 100 Skylounge is all about entertainment, both inside and out, just as her open flybridge version is. But now she’s got different space used in different ways: The enclosed Skylounge on the upper deck has a wet bar and day head, with a larger wet bar and a large electric grill just aft, outside on the bridgedeck. For privacy in port or to enjoy breezes at anchor, she has a lounging area at the bow, plus the usual dining/lounging areas aft. Because she’s capable of ocean passages, there's a Portuguese bridge. Best of all, an optional main-deck master changes the flow for owner and guests. Twin Kohler® 55 kW generators, twin remote-control winches and bow anchors, chilled water A/C and bow and stern thrusters are among the many standard features.

Key Features

  • Skylounge with terrific views, a large L-shaped settee, a wet bar, day head, and the boat’s helm and command center
  • Bridgedeck has an outdoor space with L-shaped lounge, a larger wet bar, grill, and space for the tender with cradle and davit
  • Salon offers comfortable seating with large windows, as well as a TV, AV systems, a wet bar with wine cooler, and icemaker
  • Formal dining area is convenient to the galley and offers terrific views and plenty of stowage for dishes and glassware
  • An available main-deck, two-level master stateroom has a king-size berth, luxury head and dressing room, as well as a night head
  • Or opt for a full-beam master stateroom with king-size berth amidships on the lower deck, with his-and-hers master head
  • With the master on the lower deck, the galley can be a country kitchen with breakfast bar and informal dining area forward, along with a lower helm station
  • Powered by twin 1920-hp MTU 12V2000 engines
  • Standard twin Kohler 55 kW generators

Test Results

550 6.9 6 6 1.2 1 4140 3600 63
1000 11.5 10 21 0.5 0.5 1963 1706.8 62
1250 14.4 12.5 45 0.3 0.3 1148 998.3 64
1500 17.9 15.6 73 0.2 0.2 883 767.6 63
1750 20.3 17.7 117 0.2 0.2 625 543.1 65
2000 22.8 19.8 171 0.1 0.1 479 416.5 65
2180 25.6 22.2 200 0.1 0.1 460 399.9 66
2200 26.2 22.7 208 0.1 0.1 453 393.6 67
2450 30.4 26.4 268 0.1 0.1 408 355.1 66


Length Overall 100’2'' / 30.53 m
Beam 23’ 0''
7.01 m
Dry Weight 229,900 lbs.
104,281 kg
Tested Weight 246,690 lbs.
111,897 kg
Draft Up 5’6''
1.68 m
Draft Down 6’5''
1.96 m
Deadrise/Transom N/A
Max Headroom N/A
Bridge Clearance N/A
Fuel Capacity 4,000 gal.
15,141 L
Water Capacity 650 gal.
2,461 L
Total Weight 246,690 lbs.
111,897 kg


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Acceleration Times & Conditions

Time to Plane N/A
0 to 30 N/A
Ratio N/A
Props Shanghai 52 4-blade
Load 4 persons, 1/2 fuel, 3/4 water, 50 lbs. of gear
Climate 75 deg., 45 humid; wind: 20-25 mph; seas: 4-6

Engine Options

Tested Engine 2 x 2600-hp MTU 16v2000
Std. Power 2 x 1920-hp MTU 12v2000
Opt. Power Not Available

Captain's Report

Contents of Report

Ocean Alexander 100 Skylounge

The Ocean Alexander 100 Skylounge uses her interior volume effectively, while also offering performance and handling that impressed our test captain.

Features Inspection

Main Deck

The designs of Evan K. Marshall are readily apparent in this traditional configuration, with a single-level deck running from the salon to the galley. From there, it’s up two steps to the casual gathering and dining area forward, or, in the case of the configuration featuring the main-deck master, the door to the owners’ suite. Ocean Alexander allows the owner to personalize the décor to match the owners’ preference with a generous allowance that also covers the bedspreads and soft goods. Let’s explore each of these areas in greater detail.

Ocean Alexander 100 Skylounge floor plan

The main deck is a single level from the cockpit to the galley. In this layout, the helm is on the deck above, freeing up the forward end of the main deck for a casual dining area, foredeck access, and a breakfast bar open to the galley.

Ocean Alexander 100 Skylounge main deck

There are two steps up to the reach the door to the main deck master forward. The day head opposite the galley allows guests to avoid stairs while underway.

Ocean Alexander 100 Skylounge seating

The aft deck is huge and not only includes remarkably spacious U-shaped seating but also a bar area. Photo by D & K Yacht Photography.

Salon and Dining

The 100 Skylounge offers formal dining for eight as well as a salon for gathering and entertaining. To starboard are both a wet bar and a day head, both within close proximity to the salon and dining areas. Electric shades from Hunter Douglas cover the windows for privacy in the evening.

Ocean Alexander 100 Skylounge windows

A large emphasis was placed on natural light with massive side windows. Elegant soffit treatments overhead complement the wood and marble of the décor below. Photo by D & K Yacht Photography.

Ocean Alexander 100 Skylounge dining

With the skylounge configuration, an interior winding staircase is added to starboard of the dining area.

Ocean Alexander 100 Skylounge salon

With the salon in close proximity to the formal dining area, Ocean Alexander created an easy transition when dinner calls. Clever frameless windows engineered with aluminum beams allow for some of the largest windows in class. Photo by D & K Yacht Photography.

Ocean Alexander 100 Skylounge salon table


The galley in the 100 Skylounge is quite unusual for a motoryacht of nearly any size. First, it’s quite large. Secondly, in the configuration where the master is placed on the lower deck, the galley can be isolated from the rest of the yacht in the traditional fashion – or it can be used as a “country kitchen” with an adjacent raised bar and dinette. In this setup, the owner and guests might be welcome in the galley for breakfast or a quick lunch. No matter if the galley is strictly for staff or for guests as well, it will easily accommodate the needs of a master chef to create gourmet meals. It has a large stand-up refrigerator/freezer, wine cooler, four-burner stovetop, deep sink, dishwasher, and pantry cabinets. All paneling and cabinetry are solid wood. Perspicuus Lux Lucis granite countertops provide ample room for food prep. Decking is White Aurora marble.

Ocean Alexander 100 Skylounge galley

The galley is among the most elegant we’ve seen on any yacht and accommodates even the most demanding chef. Photo by D & K Yacht Photography.

Brand Names Count. Veteran large motoryacht owners know that while there may be some minor bragging rights with exotic, terribly expensive “high-status” brand names in kitchen appliances -- when they go on the fritz, there is rarely authorized service nearby. That is why Ocean Alexander has carefully selected all appliances to be both high quality and widely distributed around the world. We have seen sinks from Franke Professional Series and Elkay as well as Whirlpool garbage disposals. Thirty-inch (76.2 cm) Thermador electric cooktops and matching ovens are joined by Sub-Zero refrigerators, wine coolers, and freezer drawers. A 24" (61 cm) Viking microwave resides over the range. A 24" (61 cm) Fisher & Paykel dishwasher takes care of the cleanup, as does a 15" (38 cm) Whirlpool trash compactor.

Casual Dining

When the main-deck master is not spec’d, the 100 Skylounge can have a more relaxed dining area that will probably be used mostly by the owner and family when guests are not aboard. This may even be used by guests for an informal breakfast or a quick lunch between activities. When owners or guests are not aboard, the crew will be happy to use it for all three meals instead of their less roomy facilities in the crew’s quarters below.

Ocean Alexander 100 Skylounge salon table

The forward lounge in the Ocean Alexander 100 Skylounge can be used for a number of different purposes from a sunrise breakfast to an after-hours cocktail nook – and sightseeing in between. Photo by D & K Yacht Photography

Skylounge Helm

Evan K. Marshall also designed both of the helm stations for the Ocean Alexander 100 with cues taken from the builder's much larger 120 model. It incorporates a “floating” display pod with three touchscreen multifunction displays and matching wood and Ultraleather finishes. Doors open to decks on either side and provide sightlines for the captain while he/she docks with an optional remote control. Stidd leather helm seats have adjustable and folding arms, and footrests, as well as a control pad in the armrest of the helm seat.

Ocean Alexander 100 Skylounge helm

The skylounge helm features a “floating” display pod with all displays integrated. The beauty of this design is that the supports for the pod can be raised or lowered depending on the needs of the captain.


The Ocean Alexander 100 Skylounge, like the open flybridge version, has an included 15’ (4.6 m) tender with a 70-hp outboard on the aft boat deck which will be launched/retrieved by a 2,500 pound (1,134 kg) hydraulic davit. For the skylounge, Ocean Alexander again relied on yacht designer Evan K. Marshall. The result is a true second salon with an elevated view and a high level of luxury, complete with a wet bar and day head. A second access point to this deck runs from the formal dining area into the enclosed skylounge, allowing a transition while remaining protected from the elements.

Ocean Alexander 100 Skylounge running

The skylounge version encloses a good portion of the upper deck, in effect creating a “penthouse” on the water.

Ocean Alexander 100 Skylounge enclosed skylounge

The enclosed skylounge keeps the helmsman and guests protected in a climate-controlled environment, with easy access to indoor and outdoor seating and wet bars, as well as a dayhead.

Accommodations Deck

The lower decks are accessed from stairs in the salon that lead to a central marble foyer. Custom-designed stone is all water-jet cut and includes stainless steel inserts for durability. All bulkheads in the hallway are fabric covered. The mattresses are innerspring with independent his/hers construction to ensure "disturbance-free movement" during sleep.

Ocean Alexander 100 Skylounge layout

In this layout, the master is shown at left above, amidships, with his-and-hers head compartments, ample hanging locker space, and huge hullside windows. The accommodations are in the forward half of the lower deck and all staterooms are accessed from a central foyer and passageway.

Head Compartments. All staterooms on the 100 Skylounge are en suite. The countertops in the heads are all Svevo marble with china sinks, and floors are Ancient Crepito marble for all but the master head, which gets a separate treatment. The shower compartments are seamless fiberglass with one-piece, clear-glass doors with stainless steel hinges fastened to granite frames. These doors are custom made for Ocean Alexander and provide superior transparency and reflectiveness. Also, “minimalist and transparent water strips” provide the “Crystal Shower” unique to Ocean Alexander.

Master Stateroom

As expected, the 100 Skylounge features a full-beam master on the lower deck, and in the version shown here, Ocean Alexander installed the popular “his-and-hers” head arrangement separated by a common shower. What makes this dual bathroom both possible and practical is the fact that there is a large, walk-in closet for madam to port and an adequate hanging locker for the man of the cabin to starboard.

This stateroom is entered through double doors at the end of the main passageway and has a chest of drawers to port and a love seat and more storage to starboard. Like virtually everything else in the boat, most of what is seen in both the drawings and in the images can be modified or changed to suit an individual’s desires. For example, a dressing table or desk can be substituted for the love seat.

Ocean Alexander 100 Skylounge master stateroom

The master stateroom has a center-mounted king-sized berth. A single shower separates twin heads. Counters and flooring are White Aurora marble.

The king-size berth is on centerline for minimum discomfort from ship’s movement. The same electric shades from the salon and formal dining areas are also present here in the master where there are large hullside windows to either side, which provide spectacular views when underway, and fresh air through opening ports.

Ocean Alexander 100 Skylounge

The master offers elegance in a relaxing atmosphere. Notice the handcrafted nightstands and match-booked veneers. Photo by D & K Yacht Photography.

Main Deck Master Stateroom

One optional feature that will undoubtedly attract a lot of attention to the 100 Skylounge is the main deck master stateroom, which changes the feel of the entire boat. The skylounge allows the glass-bridge helm station of the boat to be located on the upper deck, with full control of ship’s systems through the OctoPlex digital-switching system. This helm position frees up the forward end of the main deck, an area that includes the huge windshield, to be used as the master stateroom.

Ocean Alexander 100 Skylounge on deck master

The Ocean Alexander 100 Skylounge can have an optional on-deck master stateroom, possible because the helm station is located on the upper deck.

Ocean Alexander 100 Skylounge master

Here’s the view from the on-deck master facing forward. The surrounding windows bring an abundance of light into the stateroom. Note the companionway to the head and dressing room.

Ocean Alexander has clearly put a tremendous amount of thought into the design, using a lower-deck area forward for the master head and dressing room. But the considerations don’t end there, for the design team added what is called a “night head,” essentially a day head to starboard on the main deck, allowing the owners to avoid using the stairs at night. All-around shades help provide privacy, and there’s a desk to port.

Ocean Alexander 100 Skylounge tv

If the owner wants to relax, he/she can close the blinds and enjoy the flatscreen TV that folds downwards from the overhead.

Ocean Alexander 100 Skylounge head

Here is the master head compartment, located forward on the lower deck, and which gives access to the dressing room through those double doors.

Two VIP Configurations

Because the main deck master requires use of the forepeak for a head and walk-in closet, the lower deck in this configuration offers two different choices for the VIP stateroom. The first is a full-beam stateroom amidships – what is essentially the master stateroom on other configurations remains unchanged – with his-and-hers heads sharing a centerline glass shower. Each side of the head has a clever sliding mirror over the sink that lets the user slide it aside for a view through a large vertical hullside window, complete with opening port. In other configurations, this stateroom serves as the master, so its appointments, including a portside desk and a starboard chest of drawers, are augmented by huge hullside windows with opening ports.

Ocean Alexander 100 Skylounge vip

The full-beam VIP serves as the master when the 100 is not configured with the main deck master stateroom, and so this is the height of luxury on the lower deck.

Ocean Alexander 100 Skylounge mirrors

Angled mirrors help show the features of the his-and-hers VIP head, which offers a shared glass shower.

The second available configuration are twin VIP staterooms, each located amidships, each en suite with an athwartships queen-size berth. Both encompass the expected quality joinery and level of luxury demanded of the Ocean Alexander shipyard, and have hanging lockers to help guests feel at home.

Ocean Alexander 100 Skylounge deck plan

This deckplan shows the twin VIP staterooms, sharing the space where the single master and head are located on the standard layout. Note the head and dressing area serving the main-deck master are located far forward on this deck, below the level of the master.

Guest Staterooms

Between the master and VIP staterooms are two guest staterooms with twin berths that convert to queens. All countertops are Chiampo Blue marble. Large hullside windows admit natural light.

Ocean Alexander 100 Skylounge guest staterooms

Twin guest staterooms are virtual mirrors of one another. Both include twin berths that convert to queens. Photo by D & K Yacht Photography.

Crew Accommodations

Crew’s quarters on the Ocean Alexander 100 Skylounge are large and comfortable. They are accessed both from the port side deck and from the swim platform through the centerline door in the transom. With such an emphasis placed on chartering, an equal amount of emphasis needed to be placed on where, and how, to berth the crew. The crew’s quarters are located just abaft the engine room in the stern of the boat, which we have found to be the best place on this size boat. The captain gets a queen-size berth with an en suite head. This is ideal, particularly for the husband/wife teams of captain and chef.

Ocean Alexander 100 Skylounge

Crew’s quarters are nicely finished and spacious.

Two additional crew staterooms can sleep four more crew, with an expandable single-berth cabin, and a Pullman berth above to port and bunk beds in the starboard cabin. Both share a head which is positioned adjacent to a separate crew galley/dining area. These crew’s quarters are on the large side, which helps to attract and retain good crew. The location at the stern, with access through the lazarette to the swim platform, allows the crew to come and go without bothering the guests or owners.

Ocean Alexander 100 Skylounge crew quarters

The crew’s quarters accommodate five or six people in three staterooms. It also includes a separate galley/dining area from the main deck.

Ocean Alexander 100 Skylounge captain's cabin

The captain’s cabin in the crew’s quarters has a private head with separate shower. Photo by D & K Yacht Photography.

Turnkey Delivery

Smaller boats have long touted the “turnkey” feature to add to the attractiveness of the buyers’ experience. Sometimes this just includes bedding and towels, other times it adds dishes and cutlery. At Ocean Alexander it includes all of the above, plus full fuel tanks, all safety equipment (fenders, lines, throw ring, fire extinguishers…etc.), a full spare-parts package (bilge pumps, LED lights, zincs, filters, wiper blades, touch-up paint, fuses, an engine parts kit from CAT and Onan…etc.), a wheel puller for the propellers, a 10-man life raft, a full china set and cookware right down to the salt and pepper shakers, a toaster, electric mixer and measuring cup… just to name a few items.


As we depart, the bow and stern thrusters really proved their effectiveness and we were able to maneuver the 100 in the tight confines of our dock with little effort and soon we were on our way to open water. The Ocean Alexander 100 Skylounge has a LOA of 100’2” (30.53 m), a beam of 23’ (7.01 m), and a draft of 6’5” (1.96 m). With an empty weight of 229,900 lbs. (104,281 kg), 50% fuel, 77% water, and four people on board, we estimated our test weight at 246,690 lbs. (111,897 kg).

With the 2,600-hp MTU 16v 2000s turning Shanghai 52 4-blade props in slight tunnels, we reached a top speed of 26.4 kts at 2450 rpm. Her best economic cruise is subjective to whether she’s being operated at displacement or planing speed and the range is fairly linear throughout the power curve. That said, at the recommended MTU cruise setting of 80% load, we were running at 22.2 kts with a 200 gph fuel burn that produced a range of 399.9 nautical miles, while still holding back a 10% reserve of the boat’s 4,000 gallon (15,142 L) total fuel capacity.

Ocean Alexander 100 Skylounge running

Our test of the Ocean Alexander 100 Skylounge revealed a well-designed yacht that feels safe and responsive to stabilizers and controls.


As for her handling, I was most impressed with the 100 Skylounge’s turning capability. I mean this thing handles like a sportboat with tight turns and instantaneous responsiveness. I mean seriously… this is a 100’ (30 m) yacht with the same turning radius that we’ve seen in most express cruisers.

Ocean Alexander 100 Skylounge running

Our test captain was impressed with the maneuverability, handling and comfort of the Ocean Alexander 100 Skylounge in our sea trial.

She presented a dry ride during our tests at cruise speeds, but when slowed to displacement speed she did start to show some spray on the windshield when running through the chop. Her solid feel showed through, regardless of the direction we approached the seas, and her stabilizing fins did a great job of keeping us stable without having to fight the boat. In other words, when we felt motion, the natural tendency to stabilize ourselves was not offset by the mechanics trying to stabilize the boat. It was remarkably comfortable.

Ocean Alexander 100 Skylounge running

At slower, displacement speeds, the 100 Skylounge took a bit of spray on the windshield in the chop.

General Construction

The Ocean Alexander 100 Skylounge is fiberglass which has been coated with a polyurethane paint and epoxy-based primers. This gives the yacht its high gloss and long-lasting color retention. This process also minimizes maintenance and eliminate gelcoat oxidation.

Lamination. Hull sides and the superstructure have high-density structural foam coring and the hull has solid fiberglass infusion lamination. This same high-density foam is also found in the stringer system throughout the yacht. Cross-knit directional carbon fiber is used in high stress areas for added structural integrity and torsional strength.

Sound and vibration are reduced through various methods to provide a quiet and comfortable ride. Bulkheads have multiple insulation barriers with sound reflective materials, air pockets, and flexible isolation mounts. Ocean Alexander tells us that these techniques result in noise level reductions producing sound readings that well exceed ISO-6954 standards. Marine-grade aluminum beams under all decks and above overheads provide greater rigidity, reduce weight, and eliminate creaking underway, or as guests walk about the yacht. Being an oceangoing yacht, particular attention has also been paid to preventing water intrusion. For example, all windows are frameless, and all bulkheads are weather-tight.

Ocean Alexander 100 Skylounge finish

The 100 Skylounge exhibits a fine finish, though the components may be a bit more engineered than they first appear, with 9-layer laminated wood beneath a hard-wearing solid-wood surface.

Interior Decking. Solid wood floor planks, matching interior wood selection, custom made for Ocean Alexander with spans of over 8' (2.44 m), are used in interiors with exception of the crew area. (There, Amtico is used for ease of cleaning and economical replacement.) Outside, solid old-growth teak is used on decks with intricate edging showing off Ocean Alexander’s craftsmanship.

Special Decking. Because changes in humidity and temperature in the harsh marine environment, particularly when shipping from southern to northern latitudes can easily warp interior wood decks, Ocean Alexander has a proven solution. Where teak is not used, Ocean Alexander employs special laminated wood made in the U.S. by Saroyan Company at its state-of-the-art plant in Kentucky. This composite has a top solid wood surface with the same wear capacity as solid ¾’’ wood flooring. It uses nine layers of European birch assembled in a cross-grain direction with a top layer of exotic hardwood to match the interior of the boat.

Special Windows. Custom-engineered windows are fabricated from sandwiched glass and aluminum beams creating the strength required of ocean-rated vessels as well as improving interior light levels and sightlines. The same technology in the master bath greatly increases the view over previous portlight designs.

Ocean Alexander 100 Skylounge running

The Ocean Alexander 100 Skylounge reached a top speed of 26.4 knots at 2450 rpm with twin 2,600-hp MTU engines during our test.


While clever engineering plays a big part in the roominess of the Ocean Alexander 100 Skylounge, she’s also more spacious because of her 23’ (7.01 m) beam. Clearly this oceangoing yacht can handle all sorts of activities, including entertaining a large crowd for both cocktail and dinner parties, as well as local sight-seeing day trips.