Captain's reports and/or test numbers for this model are archived.

To Get full access to this content, please:

login   or   Register

Ocean Alexander 100 Motoryacht (2017-)

2 x 1920-hp MTU 12V2000

Brief Summary

The Ocean Alexander 100 Sky Motoryacht is all about entertainment both in exterior and interior areas of the upper decks. The sky lounge has a wet bar and day head, with a larger wet bar and a large electric grill just aft on the bridge. There's a Portuguese bridge, and an added lounging area at the bow, plus the usual dining/lounging areas aft. Twin Kohler® 55 kW generators, twin remote-control winches and bow anchors, chilled water AC and bow and stern thrusters are among the many standard features.

Key Features

  • Flybridge with a wet bar, dining for 8, and a sun pad
  • Stone countertop at wet bar, TV cabinet, and dining room divider cabinet
  • Sky lounge with bar with refrigerator, large LCD TV, settee and table, and a day head
  • Full-beam master stateroom includes a king-size berth and a nightstand
  • His-and-hers master head
  • Powered by twin 1920-hp MTU® 12V2000 engines
  • Standard twin Kohler® 55 kW generators

Test Results

600 7.7 6.7 7 1.09 0.95 3934 3421 59
800 9.3 8 12 0.77 0.67 2775 2413 59
1000 10.2 8.8 18 0.56 0.49 2030 1765 60
1250 13.7 11.9 33 0.42 0.36 1495 1300 61
1500 15.7 13.7 53 0.3 0.26 1066 927 60
1750 18 15.7 87 0.21 0.18 745 648 65
2000 20.9 18.2 128 0.16 0.14 588 511 64
2150 22.7 19.7 147 0.15 0.13 555 482 65
2250 24.2 21 168 0.14 0.13 518 450 68
2350 25.3 22 193 0.13 0.11 472 410 67


Length Overall 100’ 8'' / 30.70 m
Beam 23’ 0''
7.01 m
Dry Weight 220,264 lbs.
99,910 kg
Tested Weight 237,588 lbs.
107,768 kg
Draft Up 5’ 6''
1.68 m
Draft Down 6’ 5''
1.68 m
Max Headroom N/A
Fuel Capacity 4,000 gal.
15,142 L
Water Capacity 650 gal.
2,461 kg
Total Weight 237,588 lbs.
107,768 kg


See the price by becoming
a BoatTEST member.

Acceleration Times & Conditions

Time to Plane 7.5 sec.
0 to 30 10.4 sec. (0to20)
Ratio 2.952:1
Props 1270mm x 1092.2mm 4bl nibral
Load 4 persons, 1/2 fuel, full water, 50 lbs. of gear
Climate 72 deg., 89 humid.; wind: 10-15 mph; seas: 2

Engine Options

Tested Engine 2 x 1920-hp MTU 12V2000
Std. Power 2 x 1920-hp MTU 12V2000
Opt. Power Not Available

Captain's Report

Ocean Alexander 100 Sky Motoryacht profile shot

The new Ocean Alexander 100 Sky Motoryacht is offered in either an open flybridge, or skylounge version.

General Construction

The Ocean Alexander 100 Sky Motoryacht 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 gel coat 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 ceilings provide greater rigidity, reduce weight, and eliminate creaking underway, or as guests walk about the yacht.
Being an ocean-going yacht, particular attention has also been paid to preventing water intrusion. For example, all windows are frameless, and all bulkheads are weather-tight.

Interior Decking. Solid wood floor planks, matching interior wood selection, custom made for Ocean Alexander with spans of over 8', 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 floor with intricate edging showing off Ocean Alexander’ craftsmanship.

Special Flooring. 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 US 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 9 layers of European birch assembled in a cross-grain direction with a top layer of exotic hardwood to match the interior of the boat.

Ocean Alexander 100 Sky Motoryacht model configurations

Choose from either the open or the skylounge configurations of the 100 Sky Motoryacht.

Features Inspection

Main Deck

The designs of Evan K. Marshal are ever present in this traditional configuration, with a single level deck running from the salon to the head of the galley. From there, it’s up two steps to the casual gathering and dining area forward. Ocean Alexander allows personalizing the décor to match an owner's 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 Sky Motoryacht main deck

The Ocean Alexander 100 Sky Motoryacht has the master stateroom on the main deck.

Ocean Alexander 100 Sky Motoryacht aft deck

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 Sky Motoryacht offers formal dining for eight while still being able to maintain a huge 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 are over the windows.

Ocean Alexander 100 Sky Motoryacht side 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 Sky Motoryacht dining area

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

Ocean Alexander 100 Sky Motoryacht salon

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


The galley in the 100 is quite unusual for a motoryacht of nearly any size. First of all it is quite large. Secondly, it has been design so that the galley can be isolated from the rest of the yacht in the traditional fashion -- or, can be used as a "country kitchen" with an adjacent raised bar and dinette. In this configuration, the owner and guests might be welcome in the galley for breakfast or a quick lunch.
No matter if the 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, 4-burner stove top, 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 Sky Motoryacht 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. The sink is Franke Professional Series with a Whirlpool garbage disposal. There’s a 30" (76.2 cm) Thermador electric cooktop and matching oven. The refrigerator/freezer is Sub-Zero. An additional freezer is located forward of the dinette. 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

Forward of the galley, and adjacent to the lower helm, is a more relaxed dining area that will probably be used mostly by the owner and family when guests are not aboard. This may even used by guests for an informal breakfast or a quick lunch between other activities. When owners or guests are not aboard, the crew will be happy to use it for all three meals instead of their tight facilities in the crew quarters below.

Ocean Alexander 100 Sky Motoryacht dinette

A walkthrough to the forward dinette allows quick lunches to be served from the galley. Photo by D & K Yacht Photography.


Evan Marshal also designed both of the helm stations for the Ocean Alexander 100 Sky Motoryacht with cues taken from the builder's much larger 120 model. It incorporates a “floating” display pod and matching wood/Ultraleather. A weather-tight pantograph door to starboard provides access to the sidedeck from the lower helm. The electric helm seat is a Stidd.
With the flying bridge version this helm station will likely only be used in adverse weather. In the skylounge version this helm station will be eliminated and can be converted into a desk or more storage space.

Ocean Alexander 100 Sky Motoryacht helm

The 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.

Ocean Alexander 100 Sky Motoryacht gathering area

The forward lounge in the Ocean Alexander 100 Sky Motoryacht 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.

Bridge Deck

The Ocean Alexander 100 Sky Motoryacht is offered with an upper deck in a choice of two configurations, open or skylounge -- with each having its own distinct advantages depending on how the yacht is to be used. Both will have 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 lb. (1,134 kg) hydraulic davit. Both versions also include a four-person lighted Jacuzzi in a custom fiberglass enclosure.

Ocean Alexander 100 Sky Motoryacht open bridge

The open bridge includes the same three-across helm seating, but now exposed to the elements -- and the fresh, salt air. Photo by D & K Yacht Photography.

Ocean Alexander 100 Sky Motoryacht flying bridge

In the open configuration the flying bridge is exposed to the elements providing fresh air and sunshine.

In the open configuration, as the name implies, the guests receive the benefit of an exceeding large amount of deck space. This provides Ocean Alexander with the freedom to add plenty of entertainment features, such as a wet bar, table seating for eight and a Jacuzzi, along with room for storing a tender or watercraft, all while barely impeding on the roomy atmosphere. Access is from the aft deck via a fiberglass staircase.

Ocean Alexander 100 Sky Motoryacht open configuration

In the “open configuration” the focus is on maximizing space for moving about while still being able to take advantage of individual gathering areas.

Ocean Alexander 100 Sky Motoryacht tender

Whether the tender faces forward or athwartships, when launched at anchor or in the harbor, there’s still plenty of room for deck chaise lounges for sun bathing.

For the Skylounge version, Ocean Alexander again relied on yacht designer Evan K. Marshal. 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 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 Sky Motoryacht upper deck

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

Ocean Alexander 100 Sky Motoryacht skylounge layout

The enclosed skylounge keeps the helm and guests protected in a climate controlled environment. A smaller dinette and wet bar are still present and a second day head has been added. This arrangement has the advantage of also providing outdoor seating.

Ocean Alexander 100 Sky Motoryacht views

While remaining enclosed, the skylounge still offers excellent views of the surroundings and the ability to easily get out into the fresh air through sliding doors aft.

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 include stainless steel inserts for durability. All bulkheads in the hallway are fabric covered. The mattresses are innerspring with independent his/hers construction to ensure "disturb-free movement" during sleep.

Ocean Alexander 100 Sky Motoryacht accommodations

The accommodations are in the forward half of the lower deck and all staterooms are accessed from a central foyer and passageway. All staterooms are ensuite with separate stall showers.

Head Compartments. All staterooms on the 100 Sky Motoryacht are ensuite. 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 showers compartments are seamless fiberglass with one-piece crystal 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 a unique “Crystal Shower” unique to Ocean Alexander.

Master Stateroom

As expected, the 100 Sky Motoryacht features a full-beam master, 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 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.

Ocean Alexander 100 Sky Motoryacht

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 center mounted for minimum discomfort from ships movement. The same electric shades from the salon and formal dining areas are also present here in the master where there are six large vertical hull side windows which provide spectacular views when underway.

Special Windows. Custom engineered windows are fabricated from sandwiched glass and aluminum beams creating the strength required of ocean rated vessels along with increasing light and visibility. The same technology in the master bath greatly increase window visibility over the previous portlight designs.

Ocean Alexander 100 Sky Motoryacht master stateroom

The master offers elegance in a relaxing atmosphere. The door to the right leads to one of the twin heads. Notice the handcrafted nightstands and match-booked veneers. Photo by D & K Yacht Photography.

Ocean Alexander 100 Sky Motoryacht cabinetry

Cabinetry lies to the starboard side, a desk and chair is to port just beneath the hull-side windows. Photo by D & K Yacht Photography.

On-Deck Master Stateroom

Ocean Alexander 100 Sky Motoryacht on deck master

Shown is the Ocean Alexander 100 Sky Motoryacht’s on-deck master stateroom.

Ocean Alexander 100 Sky Motoryacht facing forward

The on-deck master facing forward. The surrounding windows bring in an abundance of light into the stateroom.

Ocean Alexander 100 Sky Motoryacht master tv

If the owner wants to relax, he/she can close the blinds and retract the flat screen TV downwards.

Ocean Alexander 100 Sky Motoryacht master head

Here is the on-deck master’s head compartment, entered from double-doors.

Forward VIP

Ocean Alexander 100 Sky Motoryacht vip layout

The forward VIP offers a queen berth and vanity along with the expected cedar hanging locker and ensuite head with separate shower. Photo by D & K Yacht Photography.

At the bow, the VIP encompasses the expected quality woodwork and level of luxury demanded of the Ocean Alexander shipyard. A queen berth is fixed on the centerline of the hull. A hanging locker to starboard is cedar lined with a vanity or desk adjacent. To port is a modest head with walk-in shower.
It is important to note that this stateroom has been moved back from the forepeak of the boat and has good walk-around access to the queen bed on three sides.

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.

Ocean Alexander 100 Sky Motoryacht 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 quarters on the Ocean Alexander 100 Sky Motoryacht are large and comfortable. 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 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-sized berth with an ensuite head. This is ideal, particularly for the husband/wife teams of captain and chef. Two additional crew staterooms can sleep three more crew, with a single berth to port and bunk beds in the starboard cabin. Both share a head which is up against a separate crew galley/dining area.
The size of these crew quarters in on the large size, which is commendable. The location at the stern and access to the swim platform gives the crew a place to hang out when the day's chores are done without bothering the guests or owners.

Ocean Alexander 100 Sky Motoryacht crew quarters

The crew quarters accommodates 5 in three staterooms. It also includes a separate galley/dining area from the main deck.

Ocean Alexander 100 Sky Motoryacht crew quarter

One of the crew quarters with a head unit. Photo by D & K Yacht Photography.

Turn Key Delivery

Smaller boats have long touted the “turn key” 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, engine parts kit from CAT and Onan…etc.), a wheel puller for the propellers, a 10 man life raft, full china sets 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 Sky Motoryacht has a LOA of 100’8” (30.70 m), a beam of 23’ (7.01 m) and a draft of 6’5” (1.96 m). With an empty weight of 220,264 lbs. (99,910 kg), 47% fuel, full water, and four people onboard we estimated our test weight at 237,588 lbs. (107,768 kg).

With the 1920-hp MTU 12v 2000s turning 50” (127 cm) x 43” (109.2 cm) props in slight tunnels, we reached a top speed of 22 kts at 2350 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 MTU recommended cruise setting of 80% load, we were running at 19.7 kts with a 147 gph fuel burn that produced a range of 482 nautical miles, while still holding back a 10% reserve of the boat’s 4,000 gallon (15,141 L) total fuel capacity.


As for her handling, I was most impressed with the 100’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 L) yacht with the same turning radius that we’ve seen in most express cruisers. She presented a dry ride during out 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 stabile 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 Sky Motoryacht running

The Ocean Alexander 100 Sky Motoryacht reached a top speed of 22 knots at 2350 rpm with twin 1920-hp MTU engines during our test.


While clever engineering plays a big part in the roominess of the Ocean Alexander 100 Sky Motoryacht, she’s also more spacious because of her 23’ (7.01 m) beam. Clearly this ocean-going 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.