First, electric cars became de rigueur. Now, the first type-approval has been issued for the Pipstrel Velis Electro electric plane. We take to the skies
This is the first electric aircraft to receive type certification. Built in Slovenia, it is based on the Alpha, which uses a 1.5-litre flat four with air-cooled cylinders and water-cooled heads for an output of 100bhp. That engine is made by Rotax in Austria and is the powerplant of choice for most modern lightweight aircraft.
The motor and power controller are both water-cooled by their own system. The batteries are also water-cooled and feature a radiator that is cooled by air drawn in through a scoop on the port side of the fuselage. The air is extracted via a duct under the fuselage. There’s no on-board charger because of weight, so instead the batteries are charged via a unit that needs 415V three-phase AC power.
The instrument panel is exactly the same as in the Alpha Pipistrel, apart from a screen for the Electric Propulsion System Indicator. This displays battery charge and battery and inverter temperatures when the aircraft is on charge; or revs, power, battery charge, time remaining, voltage, battery temperature and coolant temperatures for the motor and battery systems when it’s flying.
Once we’re airborne, Mahajan hands me control. Purring along almost silently, the Velis Electro feels just the same to fly as its petrol-engined brother: crisp handling, very stable and with nicely balanced controls. An experienced pilot could wander out of sight of the airfield, but for a student flying solo, this would be extremely unwise, as you would need to get lost for only a short time to put yourself in a tricky position later on.The Velis is extremely slippery, generating little drag.
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