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Electric / hybrid aircraft propulsion (merged)

There is no obvious catch, but given this is a promotional piece, there wouldn’t be

It does sound good.

It still leaves you with the “if more than three houses buy a Tesla and install a fast charger, the transformer at the end of the street will blow up” problem, and its translations all the way back up the grid…

Shoreham EGKA, United Kingdom

RR buying Siemens is from a cost standpoint not a good thing. RR are known to gouge their customers on engines.

Apparently they did a test with a PA46 airframe

Private field, Mallorca, Spain
Private field, Mallorca, Spain

This report from Germany is interesting.

And if they cannot get less CO2 from cars, there is no chance at all of getting it from a plane which runs at a constant high power.

The researchers compared the carbon dioxide output for a Tesla Model 3 (electric) and a Mercedes C220d sedan (diesel). The Mercedes releases about 141 grams of carbon dioxide per kilometer driven, including the carbon emitted to drill, refine, and transport its fuel. The Tesla releases between 156 and 181 grams, including battery production. Mining and processing the lithium, cobalt, and manganese used for batteries consume a lot of energy. A Tesla Model 3 battery, for example, represents between 11 and 15 metric tons of carbon dioxide. Given a battery lifetime of 10 years and an annual travel distance of 15,000 kilometers, 73 to 98 grams of carbon dioxide are emitted per kilometer.
Germany’s growing reliance on coal for electricity generation was also considered in the study. The country relies on coal when the wind is not blowing and the sun is not shining. As a result, charging a Tesla in Bavaria releases about 83 grams of carbon dioxide per kilometer driven.

Shoreham EGKA, United Kingdom

A proposal for an electric 10-seat aircraft – the Scylax

The specs are interesting. Is this at all feasible?

The speed and range suggests it will run for just about 1 hour! Or maybe the 300km is at some lower speed, so maybe 1.5hrs?

Fuel planning is going to be like in a military fast jet.

Shoreham EGKA, United Kingdom

But if they use it for the island flights in Germany flight times are typically 5 – 10 minutes

EHLE / Lelystad, Netherlands, Netherlands

Should work for Scottish interisland flights within Orkney Islands, and some Hebrides flights IF recharging takes place on the island.
Should also work for the Aran Islands in Eire.
But it might be restricted in dubious weather due to holding and diversion requirements.
And that could make it unviable.

EGPE, United Kingdom

It is feasible. Not that batteris have improved so much, but coming from fossil fuels we kinda underestimate how much you can power back electric airplanes. Look in this test flight of the Pipistrel Alpha Electro just how little power they use in cruise. Out of the 60kW max, 50kW continuous, they cruise at 90kt using only 22kw. That’s 36% of power – numbers you just don’t see with pistons or turbines.

Peter wrote:

The specs are interesting. Is this at all feasible?

Yes. Electric aircraft could very well put new life into short commuting flights. Today it is as good as dead. Widerøe (operating commuters all along the coast of Norway) is in a squeeze right now. No one is making short body Dash 8 anymore, no one is making anything resembling the Dash 8. The ones they have are getting older and older.

This Scylax is more like a micro Twin Otter than Dash 8, but still. If the alternative is 4-5 hours of car/boat and this airplane does it in 30 minutes, well.

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