57.6 kW MTOP
Technical Data Pipistrel Velis Electro
VELIS ELECTRO: Arriving from the future, EASA type-certified now
The greenest way of learning to fly!
Velis Electro is world’s first electric powered airplane to receive a Type Certificate (EASA.A.573 TCDS). The two-seater, intended primarily for pilot training, is a game-changing aircraft in terms of technological innovations and cost-efficiency. Velis Electro can be operated commercially and is fully approved for pilot training as well as other operations. With its quietness, Velis Electro can bring flight training much closer to urban areas without adversely affecting communities’ quality of life.
Quiet and clean
Featuring noise levels of only 60 dBa, Velis Electro is considerably quieter than other aeroplanes and produces no combustion gases at all. Its revolutionary powertrain is entirely liquid-cooled, including the batteries, and demonstrated the ability to withstand faults, battery thermal runaway events, and crash loads as part of the certification process. Velis Electro can operate in cold, hot and rain.
Conceived to be a fundamental member of the Velis Training System, the Velis Electro was designed to be simple to operate and maintain, without compromising safety. Employing the Pipistrel’s type certified electric engine, the Velis Electro delivers power instantly and without hesitation – using a simplified user interface in a cockpit that maintains the same look-and-feel of its conventionally powered siblings. The reduced number of moving parts dramatically decreases maintenance costs and the risk of malfunctions is further minimized thanks to its built-in continuous health-monitoring system. This enhanced reliability allows the Velis Electro to have more than double the lifespan of powertrain elements in comparison to the previous generation of electric airplanes.
As part of the Type Certification, Pipistrel demonstrated that Velis Electro achieves the highest levels of safety, even surpassing those required for conventionally powered aircraft.
Velis Electro is a full-electric derivative of the proven Virus SW 121, which is already type certified by the European Union Aviation Safety Agency (TC No EASA.A.573). It is equipped with a Pipistrel type certified electric engine E-811-268MVLC (TC No. EASA.E.234), developed with partners EMRAX and EMSISO, and Pipistrel’s three-bladed composite fixed pitch propeller P-812-164-F3A. The 57.6kW liquid cooled electric engine provides power to the aircraft.
The power is delivered by 345 VDC electric system built around a liquid-cooled in-house developed high performance battery system, which includes two Pipistrel PB345V124E-L batteries connected in parallel, installed in a redundant 2-unit arrangement, total nominal capacity 24.8 kWh. Crashworthy, thermal runaway inhibiting, HIRF/EMI tolerant.
One battery pack is located in the nose of the airplane and the second behind the cabin. This ensures redundancy of the power source: in case of battery failure, the malfunctioning battery would get automatically disconnected from the system. A single battery is capable of standalone operation and has enough power capability to support climbing and continuation of flight.
The liquid-cooling system consists of a radiator and two electrically driven pumps installed in series, located behind the rear battery pack. An air inlet for the radiator is located on left side of the fuselage, and the warm air leaves the fuselage at the bottom. Two high power axial fans are installed behind the radiator in order to allow battery cooling during charging. The fans are automatically controlled and monitored by the BMS for seamless operation.
Batteries can be charged via an onboard charging port using a Pipistrel electric charger. The whole operation is overseen by the Main computer, which displays the status of all systems on the Pipistrel EPSI 570C.
The 5.7 inch LCD EPSI 570C cockpit display is main source of information to the pilot about the operational state of the electric propulsion system in the aircraft, using intuitive graphics to display all relevant parameters. EPSI 570C is also used as the gateway for system software updates.
Unlike a start-up procedure of a conventionally powered airplane, the Velis Electro is powered-up by four switches and requires no warm-up time before take-off. This paradigm shift coupled with unprecedented quietness both inside the cockpit as well as from the outside, the Velis Electro truly is a game-changing aircraft to revolutionise your organisation and empower a new generation of aviators.
Technical Data Pipistrel Velis Electro
|ENGINE||Pipistrel E-811 EASA Type-Certified|
|max power||57.6 kW MTOP|
|PROPELLER||Pipistrel P-812-164-F3A Certified fixed-pitch composite three-blade, 1.64 m diameter|
|wingspan||10.71 m (35.1 ft)|
|length||6.47 m (21.3 ft)|
|height||1.90 m (6.23 ft)|
|wing area||9.51 m2 (102.4 sqft)|
|positive flaps||0° (0), 8° (+1), 19° (+2)|
|centre of gravity||24% – 32.4% MAC|
|basic empty weight – with batteries||428 kg (941 lb)|
|max take off weight, MTOW||600 kg (1,320 lb)|
|payload weight||172 kg (378 lb)|
|Data published for 600 kg MTOW (1.323 lbs). All speeds in Knots|
|stall speed with flaps, VS0||45 KCAS|
|stall speed without flaps||51 KCAS|
|cruising speed (at 35 kW)||90 KCAS|
|maximum horizontal speed at sea level||98 KCAS|
|never exceed speed, VNE||108 KCAS|
|max speed with flaps (+2), VFE||65 KIAS|
|manoeuvring speed||100 KIAS|
|best climb speed, VY||75 KIAS|
|max climb rate||3.3 m/s (647 ft/min)|
|best glide ratio speed||64 KIAS|
|best glide ratio||15:1|
|takeoff run – grass/asphalt||246/241 m (807/791 ft)|
|takeoff over 50′ obstacle – grass/asphalt||453/409 m (1,486/1,342 ft)|
|service ceiling||3,660 m (12,000 ft)|
|endurance||up to 50 minutes (plus VFR reserve)|
|max load factor permitted @ (1.875)||+4g -2g|
|design safety factors & tested||minimum 1.875|
Note: Data is for ISA sea-level conditions. Pipistrel reserves the right to revise this data sheet whenever occasioned by product improvement, government/authority regulations or other good cause.
FREQUENTLY ASKED QUESTIONS
- The Velis Electro features an entirely liquid-cooled powertrain, including the batteries, which are also of next-generation technology. Thanks to these improvements, the lifespan of the powertrain is double than that of the previous generation of electric aircraft. The motor and the power controller are also improved for robust operation in hot and cold climates.
- The Velis Electro has a 50 kg higher MTOW than the Alpha Electro.
- In the cockpit, the Velis Electro includes an embedded data-logger, and a tactile and aural AOA-based stall warning.
- The aircraft has heavy-duty landing gear and wheel brakes, 15% more energy onboard and its systems have shown resistance to HIRF (direct and indirect effects).
- And finally, the Velis Electro is EASA type certified, which opens the door for commercial operation.
Previous electric aircraft have obtained different levels of approvals from national authorities, however, none has been able to demonstrate levels of safety equivalent to standard category aeroplanes or was able to operate commercially.
Battery and Charging
Pilots and Maintenance
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