Candela electric boat12/11/2023 “The C-8 is our first mass-market boat,” explains Mikael Mahlberg, PR & Communications Manager, Candela Speedboats. Now, with the nearly launched C-8, Candela has taken everything they learned from the C-7 and applying it to the C-8 from a technical standpoint, while also adding those amenities one would expect from a high-end leisure boat. So, even though the company made and sold around 34 C-7s, 99% of the focus was on making it fly. In many ways, the first boat launched by Candela, the C-7, was their roadster and wasn’t really meant for efficiency or production. Now, Candela has launched their first mass-market boat, the C-8, which is an entirely different kind of beast altogether: it’s bigger, it’s more capable, and it has longer range – and it comes with a number of features that make it superior to conventional fossil-fueled boats. That boat has gone on to win a shelfful of awards, including the world’s biggest competition for electric and new energy boats, the Monaco Energy Challenge. Sweden’s award-winning innovator Candela changed all of that when they launched the world’s first hydrofoiling electric boat in serial production, the C-7, in 2019. Almost a year before, the company launched its all-electric hydrofoil speedboat with a 92 km range.Electric leisure boats have been around in one form or another for more than one hundred years, but they’ve always faced the same issue: they had speed without range – or they had range without speed. In addition, governments are looking to tackle maritime emissions and will no doubt soon be introducing the kind of emissions limits that cars are increasingly becoming subject to.Īll of this is nothing new to Candela, a company that just recently presented the Candela P-12, an electric water taxi for twelve people. Those looking to equip boats with electric motors will soon find out that there are numerous other advantages: far, far less noise, no smell, and far fewer moving parts means virtually no maintenance. Splitting load on two propellers allows for propellers with a smaller diameter and thereby higher rpm – and in turn, smaller motors that, of course, also suit the motors’ underwater position. The solution was to split the thrust needed on two propellers. Given that power is torque times rpm – Candela opted to increase the rpm and lower the torque to boost the Candela C-POD’s power density. He explains that the engineering challenge was to make the electric motors compact enough since they have to have a very small diameter in order to cause minimal drag. With Candela C-POD, we have almost unlimited cooling power – we just need to get heat from the coils to the surrounding water flow.” You can take any motor and give it three times more electricity than it is rated for. Gustav Hasselskog, Candela’s Founder and CEO explains: “The first obstacle towards a very small high-power motor is heat. The Candela C-POD slim pod drive is directly and efficiently cooled by the flow of seawater, thereby enabling higher operating temperatures and extracting more power from the motors. The company points out that the added advantage of placing the motors under the water is that this also helps keep the motors cool. For high propeller efficiency, the company has used contra-rotating propellers. This way, each motor is coupled to a propeller which means that friction losses are minimised. The Candela C-POD gets rid of the gears and the motor is mounted under the water in a toperdo-like socket, directly driving the propellers. The company’s superlative claim is based on the motor’s difference: Other boat motors – be they electric or fossil-fuelled– are usually situated in a box above the waterline. The company claims the electric boat motor is “four times more efficient than the best electric outboards.” Swedish marine tech company Candela is launching the Candela C-POD boat motor.
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