Oct 28th, 2018 : e-Plane

xoxoxoBruce • Oct 27, 2018 10:47 pm
This is from 2014 but the first I’ve heard of it, your mileage may vary.

The fully electric E-Fan aircraft, engineered by Airbus Group, made one of its first public demonstrations here last week following it's first-ever flight in France on March 11.
The novel two-seater aircraft was designed from the outset for electrical propulsion, from its energy management system to safety features.

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A series of lithium-ion batteries fitted into the wings of the plane are the sole power source for the E-Fan's two 30-kilowatt electric motors. A 6 kW electric motor in the main wheel provides extra power during acceleration and taxiing to reduce electrical power consumption on the ground.
But despite its highly energy efficient design, the E-Fan only has a one-hour range, which means it cannot leave the vicinity of an airport. To combat range anxiety, the plane is outfitted with a backup battery for landing purposes and a parachute that can be deployed as high as 2,000 feet.

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Airbus Group's ultimate goal is to make a 70- to 80-person hybrid-electric commuter jet with three hours of range in the 2050 time frame. Initial designs of the E-Thrust aircraft show the plane with six electric-powered fans that will be powered by a gas-fueled energy storage unit during the ascent and cruise phase and then glide using electric power alone while descending.
In the next step toward achieving this, Airbus will make a next-generation two-seater electric plane, set for launch in 2017, and a four-seater electric plane with a gas-powered range extender, set for launch in 2019.


There are currently six players in the game.

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sexobon • Oct 27, 2018 11:33 pm
Shouldn't they be able to extend its range by making it a biplane or triplane?
Gravdigr • Oct 28, 2018 3:11 pm
...and a parachute that can be deployed as high as 2,000 feet.


Shouldn't that be 'as low as 2,000 feet'?
sexobon • Oct 28, 2018 3:55 pm
Depends on what the gliding capability is. It may be able to dive from FL20 or higher and build up enough speed to level out for a landing. In that case, the parachute system would be automatically disabled at higher altitudes to prevent accidental deployment. Up to that altitude, it would be an available option to the pilot.
xoxoxoBruce • Oct 28, 2018 6:30 pm
The official minimum deployment height for Cirrus parachutes is 400 feet agl in level flight or 920 feet in a spin, but factors such as speed affect the altitude required. FAA-certified tests have shown full parachute inflation could occur as low as 260 to 290 feet agl for some aircraft, according to BRS.

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Gravdigr • Oct 29, 2018 4:11 pm
Well, I thought I knew how parachutes worked...Maybe I don't know how sentences work, either.

:sadpace: