The C110 is the latest model in the outboard catamaran range from Aspen Power Catamarans, based in Burlington, Washington. The boat utilises the manufacturer’s PROA hull design, in which the two hulls are of different widths. This asymmetrical design makes it possible to either fit two engines of different power ratings or to equip both hulls with engines of the same power rating.
A choice of two engine options
Buyers can choose between two propulsion systems. The first option makes use of the different hull widths: a 175 PS (129 kW) Mercury outboard is fitted to the narrower port-side hull, whilst a 225 PS engine (165 kW). According to the manufacturer, this hull-specific motorisation is designed to maximise efficiency. The second variant uses two identical 225 PS engines, thereby achieving higher speeds. Despite their different power outputs, both engines have the same weight and dimensions. Optional 115-amp alternators are available, which supply enough power for a 17,000 BTU air-conditioning system (approximately 5 kW cooling capacity) whilst simultaneously charging lithium iron phosphate batteries. According to the manufacturer, this combination enables all systems, including the air conditioning, to operate overnight without a generator.
Extended hull with more space aft
With the engines lowered, the C110 measures 11.6 metres in length and 3.25 metres in width. This means the boat can still be transported on a trailer. Compared with the previous model, the swim platform has been extended by 40 centimetres. The extended waterline provides greater buoyancy at the stern, allowing the on-board dinghy to be stowed further aft using the EZ-Davit system. This creates more space in the cockpit without adding weight to the stern. The fuel tank has a capacity of 681 litres.
Performance and fuel consumption
The first boat delivered with a hull-matched engine reached a top speed of 55 km/h during tests at the shipyard. At 4,000 revolutions per minute, the cruising speed is 39 km/h. During the test runs, the boat consumed 46.9 litres per hour at 32.5 km/h and 3,600 revolutions per minute, which corresponds to a consumption of 1.44 litres per kilometre. Based on a fuel tank capacity of 681 litres and a 10 per cent reserve, this results in a theoretical range of 471 kilometres.
Cockpit with bar counter and storage space
The cockpit features a work surface beneath a hinged window opening onto the saloon, which is fitted with fold-out bar stools. A wet room with a fridge, a large cool box, additional seating and a removable table are all included. Rod holders and storage compartments for water sports equipment, diving gear or fishing tackle are provided. A hot and cold water shower is fitted. A door in the transom leads to the extended bathing platform with a retractable stainless steel bathing ladder. The dinghy storage, positioned further aft, leaves more usable cockpit space free.
Interior with three cabins
The air-conditioned interior features a galley opposite a seating area with a table made of American walnut. Two Bentley pilot seats are positioned in front of the two-part windscreen. Wraparound Solar-Guard windows provide protection against UV radiation. Side windows, roof hatches, and the rear window and door can all be opened. The boat has three separate sleeping cabins and a bathroom with a shower. The owner’s cabin in the bow features a king-size bed, which is rarely found in a boat of this size.
Jan-Ole Puls
Editor Test & Technology
