Candela celebrates the first flight of its C-8 electric hydrofoil boat

Learning Centre > Candela celebrates the first flight of its C-8 electric hydrofoil boat

Candela aims to smash electric boat range records with its C-8, using a hydrofoil system that eliminates as much as 80% of the drag you'd get from a conventional design.

Candela aims to smash electric boat range records with its C-8, using a hydrofoil system that eliminates as much as 80% of the drag you'd get from a conventional design.Candela aims to smash electric boat range records with its C-8, using a hydrofoil system that eliminates as much as 80% of the drag you'd get from a conventional design.
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Candela's C-8 plans to break electric boat range records with its hydrofoil technology, which cuts as much as 80% of the drag you'd get with a conventional design. The first prototype C-8 has now flown, and Candela has provided videos to prove it.

The marine industry will be difficult to electrify. It takes a significant amount of energy to propel oneself through water as David Hasselhoff might tell you, and lithium batteries have a rather disappointing 2% capacity to gasoline. As a result, electric boats aren't capable of going very far right now.

The solution for Candela is to get the boat's hull out of the water on hydrofoils. The C-8 takes off at a speed of 16 knots (18.4 mph, 29.6 km/h), after which it rises until only three carbon struts are seen touching the water. The inside of the front two fins are connected by a wing-shaped foil, and the rear ends in a torpedo-shaped "C-Pod" electric propulsion unit with wings projecting from the sides. When the water gets shallow, these foils retractable to the point where you can lift the motor out of the water entirely.

The motor makes 45 or 50 kW (60/67 hp), according to Candela, which isn't a lot when compared with other similarly sized vessels, but it'll propel this 1,605-kg (3,538-lb), 8.5-m (28-ft) boat through the water at speeds of up to 30 knots thanks to that extreme drag reduction. At a cruising speed of 20 knots (23 mph, 37 km/h), Candela predicts that this boat will travel more than 50 nautical miles (57.5 miles, 92.6 km) on a single recharge of its modest 44-kWh battery.

According to the manufacturer, it can go for two-three times longer than traditional electric speedboats with 300% larger batteries. Although if Sarvo Marine ever gets its shiny aluminum Sarvo 37 built, it promises a whopping 100+ nautical miles from an equally whopping 350-kWh battery pack.

The Candela C-8 is a day cruiser, according to the manufacturer, and while it can't compete with larger dinosaur burners for overall fuel range, it does have a few advantages. One of them is absolute silence, as well as the capacity to sail without creating much of a wake behind you. The autopilot is one more; the fly-by-wire steering system will take you on a predetermined route hands-free. The boat will glide over choppy water with minimal motion, providing for a very calm ride.

Candela claims it has already sold 100 C-8s, even outselling most other 28-foot ICE boats in the premium category. It's a fairly expensive toy at a starting price of €290,000 (US$330,000), but people will flip when they see this boat rising up on its stilts and silently cruising away into the sunset.

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Candela's C-8 plans to break electric boat range records with its hydrofoil technology, which cuts as much as 80% of the drag you'd get with a conventional design. The first prototype C-8 has now flown, and Candela has provided videos to prove it.

The marine industry will be difficult to electrify. It takes a significant amount of energy to propel oneself through water as David Hasselhoff might tell you, and lithium batteries have a rather disappointing 2% capacity to gasoline. As a result, electric boats aren't capable of going very far right now.

The solution for Candela is to get the boat's hull out of the water on hydrofoils. The C-8 takes off at a speed of 16 knots (18.4 mph, 29.6 km/h), after which it rises until only three carbon struts are seen touching the water. The inside of the front two fins are connected by a wing-shaped foil, and the rear ends in a torpedo-shaped "C-Pod" electric propulsion unit with wings projecting from the sides. When the water gets shallow, these foils retractable to the point where you can lift the motor out of the water entirely.

The motor makes 45 or 50 kW (60/67 hp), according to Candela, which isn't a lot when compared with other similarly sized vessels, but it'll propel this 1,605-kg (3,538-lb), 8.5-m (28-ft) boat through the water at speeds of up to 30 knots thanks to that extreme drag reduction. At a cruising speed of 20 knots (23 mph, 37 km/h), Candela predicts that this boat will travel more than 50 nautical miles (57.5 miles, 92.6 km) on a single recharge of its modest 44-kWh battery.

According to the manufacturer, it can go for two-three times longer than traditional electric speedboats with 300% larger batteries. Although if Sarvo Marine ever gets its shiny aluminum Sarvo 37 built, it promises a whopping 100+ nautical miles from an equally whopping 350-kWh battery pack.

The Candela C-8 is a day cruiser, according to the manufacturer, and while it can't compete with larger dinosaur burners for overall fuel range, it does have a few advantages. One of them is absolute silence, as well as the capacity to sail without creating much of a wake behind you. The autopilot is one more; the fly-by-wire steering system will take you on a predetermined route hands-free. The boat will glide over choppy water with minimal motion, providing for a very calm ride.

Candela claims it has already sold 100 C-8s, even outselling most other 28-foot ICE boats in the premium category. It's a fairly expensive toy at a starting price of €290,000 (US$330,000), but people will flip when they see this boat rising up on its stilts and silently cruising away into the sunset.

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