Electric and Hydrogen aeroplanes - feasibility and issues

[windcalm]

MHI RJ Aviation Group (MHIRJ) and Maeve Aerospace B.V. have partnered to develop the Maeve M80, a hybrid-electric regional aircraft designed to revolutionize regional aviation with reduced environmental impact and enhanced economics. MHIRJ will provide engineering and advisory expertise to accelerate the M80's design, industrialization, and commercialization. Both organizations emphasize their shared commitment to innovation and sustainability, aiming to meet the future needs of regional flight. The M80 represents a transformative step for regional aviation, leveraging cutting-edge technology to reduce emissions and fuel consumption.

MHI RJ Teams Up with Maeve on Groundbreaking Sustainability

MHI RJ Aviation Group (MHIRJ) and Maeve Aerospace B.V. have agreed to cooperate with respect to the development of Maeve's groundbreaking M80 aircraft. At the h

www.asdnews.com

 

[TomcatViP]

Regarding Electra design, I am surprised by the location of the turbo generator inlet: one side only and behind, slightly below the wing root. I wonder if that will not compete with the airflow above the wing to suck it out of the extrados.

 

[shin_getter]

View: https://www.youtube.com/watch?v=lhU9JZybLXc

 

[alberchico]

Glad to see that this project finally got across the finish line.

China Certifies First Commercial Electric Plane

The RX4E will target underdeveloped countries with poor roads for short-haul flights.

www.avweb.com

Volar Looks to Commercialize eSTOL Aircraft in UAE

The manufacturer’s potential partnership with an Abu Dhabi-based investor seeks to commercialize electric aircraft in the Emirates.

www.flyingmag.com

Chinese electric plane maker Rhyxeon targeting markets in Africa and Asia

The four-seat RX4E model is being targeted at countries with poor road infrastructure where it could have a wide range of uses.

www.google.com

 

[Zoo Tycoon]

Glad to see that this project finally got across the finish line.

China Certifies First Commercial Electric Plane

The RX4E will target underdeveloped countries with poor roads for short-haul flights.

www.avweb.com

Volar Looks to Commercialize eSTOL Aircraft in UAE

The manufacturer’s potential partnership with an Abu Dhabi-based investor seeks to commercialize electric aircraft in the Emirates.

www.flyingmag.com

Chinese electric plane maker Rhyxeon targeting markets in Africa and Asia

The four-seat RX4E model is being targeted at countries with poor road infrastructure where it could have a wide range of uses.

www.google.com

Calculating the performance of electric aeroplanes is quite straightforward so I’m surprised the above publications don’t include such, they just repeat the manufacturer’s claims.

So 4 people, 90 minutes endurance, 10k ft, and 156 kts, 300km sounds pretty reasonable, indeed impressive..

Now for grim reality;-

On its 100 KWHr no combination of these is possible;- 90 minutes might be possible with one pilot at an altitude of 30cm at 65 knots… if the wing is kept clean from bugs. If this is done with a 20 knot tail wind then it’ll go 300km.

If a reasonable assumption is made of altitude/speed profile for a four passenger touring aircraft with a single go around reserve, the maths gives about a 22 minute cruise…. Maybe a bit more, maybe a bit less depending on fitting into airfield traffic, taxi distance and battery temperature. Also this is with a new battery, they only get worse with age.

For comparison most 4 seat touring aircraft will easily manage 3 hours.