The Cayman 23.0 Sport is a small boat that can travel in complete comfort, even on a rough sea, thanks to a well-designed hull
by Niccolò Volpati
THE SEA WASN’T EXCESSIVELY ROUGH, BUT NEITHER WAS IT OILY SMOOTH. And then there was the wind, which was fairly strong when we were at Soverato. They were ideal conditions to try out an inflatable, not least because they were the kind you often come across in the summer.
The first thing I checked was how dry it stayed. To do that I tried turning hard just at the wrong time, so I was trying to get some spray on the deck. No luck. The rubbing strake did its job. The bow wave is “clean” and the water is moved to each side. That is also a consequence of the tubes which, as well as stopping the water from getting into the cockpit, give an excellent feeling of stability. You can turn hard at high speed, zig-zag and do all the moves that an inflatable normally does, and stay in complete control. The waves weren’t ever too demanding, but the feeling was that the hull of the Cayman 23.0 Sport can easily handle the sea, even when the water is rough.
There was a 175 hp Suzuki outboard on the transom, and you could feel the 2,867 cc. The acceleration was fierce, and we needed less than three seconds to start planing and just over twenty to get to top speed. The engine had the right amount of power. It was enough to have fun and have a wide range of speeds to choose from, without needing any extra horsepower. The transom could handle the power because it is certified to take up to as much as 250 hp, although frankly, that would seem too much even for fans of sporty performance. And with the 175 horsepower, we did over forty knots.
The Suzuki DF175 AP didn’t disappoint in terms of fuel consumption either, and it doesn’t use much at any speed – given that it needs 12.6 liters per hour to plane and 53.9 at top speed, while you go from 0.8 to 1.3 liters to cover a nautical mile. That amount doesn’t change very much, which tells us that the hull is very efficient. But it is also a very low amount, and that is something that is to be appreciated not simply because nobody is happy to earn money only to see it spent on petrol, but also because it means you don’t have to refuel every time you set out to sea.
Ranieri’s RIB division hasn’t been around for very long, but it can boast a very wide choice of boats, and it is constantly updating its models.
The fuel tank can take 205 liters, so you have to fill up after around 200 miles. It is simple, efficient, and comfortable in how it handles, and these are characteristics that are also reflected in how the 23.0 Sport is furnished. With just over seven meters in length overall, it has some solutions that simplify life on board. The linear sofa in the cockpit, for example, doesn’t take up the full width of the boat. And it has a gap on the port side to make access to the stern easier. You don’t have to climb over or move anything to get to the swimming ladder, and the water.
Right in the bows, there is the anchor roller with the external windlass. The maintenance is simpler because you can see everything and the mooring line isn’t caught by angles or blockages. Ranieri has decided not to put the windlass in a locker, and that was the right thing to do, as it has meant not losing space that is only taken up by the chain. The cockpit is well protected by an awning, the structure of which rests on the fiberglass reverse molding in the stern. So, it is fixed down very effectively. Even when we were underway and I was trying to jump over some bow waves, it held up well. There were no vibrations, and there was no dangerous rocking. Everything felt solid and robust, like the grab bars that surround the seat that is forward of the helm station and the bollards for mooring in the stern.
It has a wide range of possible power output that can be fitted, which go from a minimum of 100 up to a maximum of 250 horsepower. The one we tried had 175, which seemed more than enough given that at full speed we did over 40 knots.
The 175 horsepower Suzuki is a 2,867cc, in-line, four-cylinder engine with a 10.2:1 compression ratio, and an offset crankshaft. The Variable Valve Timing system means the opening and closing times of the intake valves are adjusted according to the engine revs.
PROJECT: Shipyard technical department
HULL: LOA 7.10m • Maximum beam 2.80m • Tube’s diameter 0.60m • 5 compartments • Displacement 700 kg • Fuel tank volume 205 l • Water tank volume 45 l • Maximum power rated 250 hp
MAIN PROPULSION: Suzuki DF 175AP • Outlet mechanical power 129 kW (175 hp) • DOHC 16 valves • 4 cylinders in line • Swept volume 2,867 cc • Bore&Stroke 97mm x 97mm • Compression ratio 10.2:1 • Maximal rotational speed 5000-6100/min • Weight 235 kg
EC CERTIFICATION: CAT B – 16 people
PRICE: starting from 30,530 €, Excl.VAT, bare boat
(Ranieri Cayman 23.0 Sport, no spray on deck – Barchemagazine.com – January 2021)