Karnic S37 x, an exuberant personality

A small natante boat that is sporty yet surprisingly spacious. With the two Selva White Whale engines of 300 hp each, we reached 40 knots

by Barche – photo by Andrea Muscatello

A thirty-footer to celebrate its thirtieth anniversary. Karnic is growing in every way. The Cypriot shipyard is carving out a place for itself on the international stage, and in recent years it has not only expanded its global sales presence but also increased its range and production to meet the demands of its target market.

And it is with this in mind that the new S37 x has been launched as the brand’s new flagship. It is a sports cruiser with a hardtop and is classed as a natante (so it comes in at 9.98 metres, which turns into 11.16 overall with the swimming platforms on either side). It has a very effervescent personality and a lot of room below decks. It uses outboards, in our case we tested a boat with two 300-hp Selva White Whales, but it can fit up to 900 horsepower in total. Thanks to the long-standing partnership with Selva, the Tirano-based firm that is the exclusive importer and distributor for Italy for the entire range, the S37 x can not only count upon an extensive network of professional assistance but also a decidedly competitive sales policy.

The deck layout is traditional with two side decks leading to the bow. There is a large sunpad with raised backrests. A ‘shell’ awning is available as an option. A double-support table can be fitted in the cockpit, while the side seats are concealed in the bulwarks. At the stern, the settee slides on rails and can easily be converted into a double dining or bathing configuration.

The external lines are muscular, angled and powerful. The deck flare grows elegantly as it moves forward to the bow, but has a gap to allow space for windows in the lounge, which increases luminosity and gives a clear view of the horizon. Despite the good headroom under the hardtop, the boat doesn’t have too heavy a profile, not least because of the good work that has been done to cover up the small roll bar, which houses lights and antennas.

The cockpit has a very functional set-up: two chairs can fold out from the sides, while in the stern there is a sofa that rolls forward on tracks. That means you can quickly move from one arrangement to another – one is completely clear (perfect for when you are swimming or fishing) while the other is ready for lunch, with the collapsible table with a double stand. It is operated manually, and the movements are a bit cumbersome but very solid. By contrast the two large swimming platforms to the side make getting into the water easy, and you can even use them when busy in the kitchen with the outside barbecue in the stern, behind the centrally-located sofa in the cockpit. There is a second cooking area inside the main saloon, and with the protection of the hardtop (the main part of which can be opened electrically), there is also a welcoming living and eating area for four people, with the table that can be lowered to make another berth.

Below deck there are three cabins, with the master’s at the aft end. A second galley is located in the saloon on the main deck. The dining table seats four.

The boat may only be eleven metres long, but there is no lack of accommodation. The lower deck, in addition to the head, houses as many as three cabins. The master room is in the bow, with the traditional V-shape and a central 150 x 195 cm bed, good headroom and plenty of storage space for luggage. The cabin on the port side is also very comfortable, with a bed measuring 140 x 195 and a good amount of room. Whereas the one to starboard is a bit tighter, suitable perhaps for any youngsters on board, with a 130 x 195 bed.

Even though it is certified to take up to 900 horsepower, the engines we had fitted seemed to be the right choice, and the figures reflect that the weight-to-power ratio is 15.5 kilos per kilowatt (when fully laden) and the top speed we got was very nearly forty knots. Which is not too bad for a hull that has been designed for family cruises. Fuel consumption will of course be affected if you open the throttles right up, and get to 200 litres an hour. The figures relating to the 17-18 knot economy cruising speed are decidedly more reasonable (staying below 100 litres per hour, while the minimum planning speed is at 13 to 14 knots, and 70 litres per hour) as are the ones for what I think is the perfect cruising speed: 28-29 knots (using 140 litres per hour of fuel).

You are entirely comfortable at that pace, you don’t feel any annoying vibrations, and noise levels are completely average. It is very pleasant to handle, the responsiveness at the wheel is immediate and precise, you feel the turns and the boat is fun without ever reacting nervously. You always get a pleasant feeling of control over the boat, even at higher speeds.


Engine data
Two 300hp Selva White Whales were installed in the stern of the test boat. The homologation allows up to 900 hp. The choice of power was excellent: the cruising speed is around 29 knots and the boat is very comfortable.

Karnic by Selva
Viale dell’Industria, 13
I-23037 Tirano (SO)
[email protected]

Shipyard technical department

LOA 11.16m • Length 9.98m • Maximum beam 3.6m • Draft 0.61m • Light mass displacement 6,200 kg • Fuel tank capacity 2x400 l • Water tank capacity 200 l • Waste water tank capacity 90 l

2 x 300 Selva White Whale (220.7 kW/300 hp)• 6 V – shaped cylinder at 60° • Bore&Stroke 96mm x 96mm • Swept volume 4,169 l • Maximal rotational speed 6000/min • Weight 260 kg

CAT B/C 10/12

312,400€ bare boat • 360,960€ with 2 x 300 hp White Whale (December 2023)

(Karnic S37 x, an exuberant personality – Barchemagazine.com – December 2023)