Sirena Yachts 58 (2019-)

Brief Summary

The third launch for Sirena Yachts since the company started building its own boats in 2006, the 58 was introduced in 2018. She made her U.S. debut at the Fort Lauderdale International Boat Show and is available in multiple accommodations plans. Like her predecessors, the Sirena 58 is a long-range cruiser with a semi-displacement design.

Key Features

• Large flybridge with spacious lounge areas
• Sunroof in flybridge hardtop
• Use of carbon in the superstructure and flybridge lowers the weight and the boat’s center of gravity
• Choice of three belowdecks layouts
• Hydraulic swim platform
• Two helm stations
• Side boarding doors
• Optional deck access to VIP cabin

Test Results

Specifications

Length Overall	61' / 18.59 m
Beam	17’7'' 5.36 m
Dry Weight	61,729 lbs. 27,999 kg
Tested Weight	64,852 lbs. 29,416 kg
Draft	4' 1'' 1.24 m
Deadrise/Transom	N/A
Max Headroom	N/A
Bridge Clearance	N/A
Fuel Capacity	950 gal. 3,596 L
Water Capacity	210 gal. 794 L
Total Weight	64,852 lbs. 29,416 kg

Acceleration Times & Conditions

Time to Plane	N/A
0 to 30	N/A
Ratio	2.037:1
Props	2'6"/800mm
Load	5 persons, 1/5 fuel, 3/5 water, 50 lbs. of gear
Climate	72 deg., 68 humid; wind: 10-15 mph; seas: 1

Engine Options

Tested Engine	2 x 650-hp CAT 8.7
Std. Power	2 x 650-hp CAT C 8.7
Opt. Power	2 x 850-hp CAT C 12.9

Captain's Report

Contents of Report

• Mission

• Major Features

• The Designers

• Features Inspection

• Choice of Cabins

• Salon Deck

• The Bow

• The Flybridge

• Engine Room

• Performance

• Handling

• Observations

Mission

The Sirena 58 was designed for cruising with her semi-displacement hull bottom, Class A European certification, a low center of gravity and tall bulwarks and covered side decks that make it easy to safely head to the bow. She’s available with a choice of three belowdeck plans, including dedicated access to the VIP cabin from the bow. The large flybridge and salon lend themselves to entertaining, whether guests prefer to be indoors or out.

Major Features

• Large Flybridge. Multiple lounge areas lend themselves to entertaining.
• Extended Hydraulic Swim Platform. Push a button and it lowers into the water with accompanying stairs for easy tender retrieval and re-boarding.
• Large Bow Seating Area. Spacious lounges create a comfortable place to enjoy the sun.
• Upper and Lower Helms. This is something not always found on boats less than 65’ (19.81 m) long and both are positioned on the port side so the captain can easily choose.
• Innovative Bow Stateroom. Thanks to the plumb bow the master stateroom is almost one of a kind.

The Designers

German Frers. As with other Sirena yachts, the hull and exterior styling were drafted by Frers Naval Architecture & Engineering, which is based in Buenos Aires. Led by German Frers, the firm dates back to 1925 when his father started designing boats. German took over in 1970 and to date, the company has created more than 1,300 designs.

Tommaso Spadolini. Studio Spadolini designed the Sirena 58’s interior. Principle Tommaso Spadolini has collaborated on more than 200 yachts in his 30-year career.

Features Inspection

Choice of Cabins

Sirena offers the 58 with three different belowdecks layouts, two that sleep six people and one with dual master cabins.

Master Stateroom. Positioned at amidships, the master stateroom has a 72” (1.83 m) -long by 65” (1.65 m)-wide berth that’s located on the boat’s centerline so vessel movement has the minimum effect on people sleeping. Standing headroom is 6’5” (1.96m) and it’s 4’8” (1.42m) from the berth to the overhead. To starboard, there’s a larger closet plus accent and reading lights and outboard is a large window, storage drawers, and a vanity with a lighted mirror.

Forward, a 50” (1.27 m) TV rises from a cabinet at the foot of the berth. To port are a smaller closet, another chest of drawers, and a loveseat. There is additional storage in drawers in the base of the berth.

The Master Head. A hatch forward to starboard in the cabin leads to the master head, which has a hullside port that opens to let in fresh air, a Corian countertop with lots of open space, and a mirrored cabinet outboard of the extra-wide vessel sink. The toilet is installed at an angle to make it more comfortable to use and the separate shower is in a glass enclosure with a rainwater spout overhead and a pull-up wand. There’s storage in cabinets at eye level and below in the base of the sink.

Guest Cabin. Heading aft from the master stateroom to port is a guest cabin with two single berths. There are storage drawers in the bases plus a hanging locker forward. To let in light and sea breezes, the cabin has an opening port in the hullside. This cabin also has access to the day head, which is a wet model that has a curtain to close off the shower and a wand instead of a fixed head.

VIP Quarters. In the bow, the VIP stateroom has a 75” (1.91 m) by 67” (1.70 m) berth plus standing headroom of 6’4” (1.93 m) and seated clearance of 4’7” (1.40 m) on the berth. In the two-stateroom layout, there are separate stairs from the bow to the forward cabin. There are large hullside windows outboard with opening ports and storage is in cabinets and closets on each side of the cabin. Like the master head, the VIP facilities have a separate circular shower stall.

Crew Quarters. Regardless of which layout an owner or owners choose, the Sirena 58 comes with quarters and a head for a single crew member. The entrance is from the boat’s swim platform.

Salon Deck

The Lower Helm. Stairs lead up from the cabin deck to starboard just alongside the lower helm. Working from starboard to port, there’s a cabinet with an open countertop for charts and storage forward. Aft behind darkly tinted plastic doors, the main distribution panel is located in an intelligent spot and is thoughtfully laid out with the 120-volt AC switches to port and the 12-volt DC system to starboard. At the top are the AC-shorepower selector and genset battery and start-stop switches. All of the switches are clearly labeled and illuminate when on.

The lower helm has twin 12” Garmin GPSMap 7612 multifunction displays in clear view. ZF digital controls are to port with the thruster joysticks just aft. Immediately to starboard are the windlass control and Garmin autopilot. The engine start-stop buttons are ahead of the steering wheel and to starboard are the CAT engine screen, accessory switches, and the controls and screens for the Zipwake interceptors and Seakeeper gyroscopic stabilizer.

The driver and a companion can sit on the double-wide seat and just aft to port is a manually opened sliding window. Across to starboard is a door that opens to the deck. Sirena did a good job with the 58’s windshield. The view through the glass was clear and undistorted even in the curved sections. There’s a skylight with a power shade centrally positioned above the lower helm.

The Salon. Abaft the lower helm, the salon has 6’8” (2.03 m) of headroom, an L-shaped sofa to starboard that wraps around a table and can be lowered to convert the area to an extra berth. To port is a second loveseat-sized lounge. The upholstery is suede leather and overhead details include leather-wrapped rails and Alpine Oak trim. Air conditioning vents are covered with custom-carved oak valences and the side windows have manual blinds.

The Galley. It’s an 8” (20.32 cm) step down from the salon to the galley, which is aft to starboard. There’s a removable hatch in the countertop that uncovers the stainless-steel sink plus good space for meal preparation and a Miele four-burner stove. A stainless-steel hood vent clears the area of steam and fumes and our test boat had a dishwasher as well. There’s storage at eye level with a dedicated wastebasket rack beneath the sink. Spice-rack-style shelving pulls out between the slot between the oven and dishwasher. Across the way to port is the refrigerator above and freezer below with storage aft.

The Aft Deck. A doublewide stainless-steel framed door leads out to the Sirena 58’s cockpit. The cockpit lounge has seating around a table that measures 74” (1.88 m) by 25” (.64 m). It’s supported by stout twin stanchions. To starboard, there’s a compact console that houses a grill and wine chiller. The grill has a mirrored heatshield on the underside of the hatch to shut down the heat when closed.

The Swim Platform. Twin passages on each side lead aft to the Sirena 58’s swim platform. On each side, there are line/fender lockers and cleats to tie off stern lines, plus gates that close the passage. The platform itself measures 3’ (.91 m) for to aft and is full beam. Our test boat had the optional 4’ (1.22 m) extension that lowers into the water with hydraulics to facilitate tender loading.

The Bow

Heading forward to the Sirena 58’s bow, the passageways are 21” (53.34 cm) wide and fuel fills are in dedicated lockers. The bulwarks are 34” (86.36 cm) tall and topped with teak caprails. Admidships cleats are in hawse holes and overhead, the passage is protected by the overhanging flybridge. This is a smart design on an adventure or exploring yacht.

The bow area has a forward-facing sofa-style lounge with a walkway between it and a sunlounge that is 78” (1.98 m) wide and 100” (2.54 m) at its longest point. There are grabrails and cupholders in reach of the lounge and hatches for fender lockers open on twin stainless-steel gas struts. As mentioned earlier, if the boat is ordered with two staterooms below decks, the forward fender locker would open to stairs to a bow cabin. The foredeck has two 12” (30.48 cm) cleats, and a Lofrans windlass with access to the rode locker beneath twin in-deck hatches.

The Flybridge

Heading aft from the bow to the cockpit, there are stairs that lead to the Sirena 58’s flybridge. Aft on the flybridge is a large lounge to port that wraps around a table. There’s storage under the seats and if an owner prefers, he can leave this area open.

Beneath the centrally located radar mast, there’s 6’7” (2.0 m) of headroom and the flybridge hardtop measures 9’ (2.74 m) by 8’5’ (30.78 m). There’s a rainfall-style shower and to starboard, a wet bar contains an electric grill and a sink with a foldup faucet. In the base are cabinets with a refrigerator and open storage under the sink. Forward of the radar mast to starboard, there’s a lounge that wraps around a 54” (16.46 m) x 31” (9.45 m) table on twin fixed pedestals. Ahead to starboard adjacent to the flybridge helm is a sunlounge that has space for a couple to stretch out and soak up the rays.

The Upper Helm. Like the lower station, the upper helm is positioned to port. Working our way from port to starboard, the layout has the digital shift/throttle controls forward of the thruster joysticks. Immediately to starboard are the autopilot and Zipwake controls. The steering wheel is centrally positioned with the ignition buttons and compass just ahead.

Forward in an angled panel are two 12” (30.48 cm) Garmin MFDs in an angled panel with the windlass control to starboard. To starboard are the dedicated engine monitoring screen, Seafire system monitor, spotlight control panel, and the accessory switches. The upper helm seat is 42” (1.07 m)wide and is in a fixed position.

Engine Room

A hatch in the cockpit deck provides access to the Sirena 58’s engine compartment. We found good access to the 21.5 kW Cummings genset, water-separating fuel filters and mechanical accessories. We measured compartment headroom at 5’ (1.53 m) and space between the engines at 52” (1.32 m).

All accessories are clearly labeled and Sirena limited the number of holes for through-hulls by using a seachest that onboard water systems drain into. It has a single outlet through the hull. The freshwater filter can make 800 gallons (3,028 L) per day and there’s good access to the Seakeeper 9 gyroscopic stabilizer. Throughout the compartment, there’s plenty of light and a strong ventilation system.

Performance

The Numbers. The Sirena 58 measures 61’ (18.58 m) with a 17’7” (5.36 m) beam. She draws 4’1” (1.24 m) and has an estimated empty weight of 61,729 lbs. (27,999.8 kg). With 190 gallons (719 L) of fuel, five people and test gear on board, our estimated weight was 64,852 lbs. (29,416 kg). Our test boat was powered by twin 650-hp CAT diesels spinning 2’6” (.76 m) propellers.

Running in 1’ (.30 m) seas and 15-mph winds, we hit a top speed of 28.1 mph at 2300 rpm. Best cruise came at 2000 rpm, where we recorded 23.4 mph and 47.0 gph, which translated into 0.5 mpg and a range of 426 statute miles with 10 percent of the boat’s 950-gallon (3,596 L) fuel capacity in reserve.

Displacement Speeds. At 1000 rpm we recorded 9.0 knots, burning 8 gph for a range of 961 with a 10% fuel reserve. That means cruising around Europe she can easily country hop. It also means that she can easily island hop from North America down island to South America. She can also go from Seattle to the Alaskan pan handle and back with only one fuel stop at displacement speeds.

Handling

The 58 is designed for cruising and when we ran through the chop on test day, we were impressed with how well the raised reverse chine knocked down spray.

Observations

Sirena Marine packs a lot into the 58. The choice of belowdecks floorplans is welcome and the optional direct entry to the VIP cabin from the bow in the twin-stateroom configuration lends itself well to co-ownership or chartering situations.

The plumb-bow design gives the boat a seaworthy look and feel. The rounded windshields for the pilothouse and large salon windows improve visibility and the tall hullsides and bulwarks approaching 3’ tall add safety for those on deck in snotty conditions. She also has a Class B rating.

That she’s built with advanced composites like carbon and technologically advanced methods including resin-infusion give the 58 a solid feel on the water and enhance her efficiency for distance cruising at displacement speeds.