![]() The company’s first model is the 6kW RIM6 (pictured) which weighs in at just 12kg (26lb). This variable pitch is also said to reduce energy consumption and is the principle behind more conventional e-propellers such as Brunton’s Eco Star. The second is with the blade design, which can now pivot freely depending on loading and speed. The result is an improvement in range claimed to be around 35%. ![]() The first is to introduce a hydrodynamic ‘stall’ into the tunnel to eliminate some of the vortex restrictions associated with high-speed running and reverse. The French company HY-Generation is also exploring the versatility of the rim drive and has made two breakthroughs which, it says, has greatly increased the unit’s efficiency. HY-Generation’s first model is the 6kW RIM6 HY-Generation Some designs even have inward-pointing blades, which allow ropes and nets to pass harmlessly through the central void without fouling. Basically, this gives just a single moving part, with all the electrical components ‘potted’ in resin to be completely watertight. Best rim drive electric outboard motorsĭeveloped from commercial shipping applications, the rim drive uses the outer part of the tunnel as the stator, and the inner section as the rotor. You can read their full review of the 2hp TEMO electric outboard online now. Marine technical editor Fox Morgan said: “I like the low-profile design, the speed of mounting and dismounting, the ease of carrying and stowing and the speed it charges.” The latest option on the market is the TEMO 450 electric outboard, which we recently got a chance to test. With our new systems we will be able to replace old technologies or make small optimizations such as communication signals without a problem”. “In the future there will definitely be significant improvement in battery chemistry and power management. “We saw lack of customisable options in our old design so we are working on more open protocol-based systems that are user friendly,” said project manager Tomaž Murko. As with most modern outboards, energy management is a priority. e’dyn is also upgrading its popular 11kW model with a new communications protocol and a 25kW version will be available shortly. The motor is housed conventionally under a cowling and fed from a separate battery bank.Ī new ‘Free Time’ line of 2kW, 4kW and 6kW models will be available from 2021. Now, thanks to new technology, the motor is described as ‘little more than a human whisper’ when under way.Į’dyn is producing outboard motors from 2kW to 11kW in power e’dyn: 2.6hp-8hp electric outboard motorsĪ co-operation between Slovenian-based Podkrižnik and Italian-based e-concept, e’dyn is a good example of futuristic design and lightweight construction. The new generation of motors are exceptionally quiet, as earlier models were known for a distinctive whine. The control handle contains a built-in GPS and has an LCD display showing charge state, speed, estimated range and energy draw. Both motors are IP67 waterproof, meaning you can immerse them to 1m for 30 minutes and they’ll still work just fine. As such, it has been refining existing models and producing new ones, with the redesigned 603 model (left) out in 2021. Torqeedo was arguably the pioneer of lightweight electric outboards but is now facing some stiff competition. The 1103 nomenclature refers to the 1100W battery, which is detachable and weighs 17kg (37lb). This 1kW motor is roughly equal to a 2hp petrol outboard, but with the obvious limitations of range. The German-made Torqeedo 1103 Travel typifies a design where the motor unit is submerged. This captures an extra 5% energy from the displaced water, extending battery range Torqeedo Travel Torqeedo has borrowed from big ship technology and placed a ‘swirl energy enhancer’ onto the boss of the propeller.
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