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Rolls-Royce says its all-electric aircraft 'is world's fastest'

Goldhedge

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Rolls-Royce says its all-electric aircraft 'is world's fastest'​

20 November 2021


Spirit of Innovation all-electric aircraft

IMAGE SOURCE, ROLLS-ROYCE

The testing took place at Boscombe Down experimental aircraft testing site

Rolls-Royce believes its Spirit of Innovation plane could be the world's fastest all-electric aircraft.

The firm - whose aerospace headquarters are based in Derby - said the plane reached a top speed of 387.4 mph (623 km/h) during test runs at an experimental aircraft testing site.

It is thought to have set new World Records over three different distances.

The figures have been sent to the World Air Sports Federation for verification.

The test flights took place at Boscombe Down in Amesbury, Wiltshire, on 16 November.

The top speed was achieved by test pilot and director of flight operations Phill O'Dell.

"This is the highlight of my career and is an incredible achievement for the whole team," he said.

Spirit of Innovation all-electric aircraft

IMAGE SOURCE,ROLLS-ROYCE

Spirit of Innovation uses a 400kW electric powertrain

Rolls-Royce said Spirit of Innovation was more than 132 mph (213.04 km/h) faster than the previous record set by the Siemens eAircraft powered Extra 330 LE Aerobatic aircraft in 2017.

It reached a top speed of 345.4 mph (555.9 km/h) over 1.9 miles (3 km) and 330 mph (532.1 km/h) over 9.3 miles (15 km).

It is also thought to have broken the fastest time to climb to 9842.52 ft (3,000 m) by 60 seconds with a time of 202 seconds.

The aircraft uses a 400kW electric powertrain - the equivalent of a 535 BHP supercar.

Roll-Royce said it also had the most power-dense propulsion battery pack ever assembled in aerospace with enough power to charge 7,500 phones.

Warren East, chief executive of Rolls-Royce, said: "Following the world's focus on the need for action at COP26, this is another milestone that will help make 'jet zero' a reality.

"It supports our ambitions to deliver the technology breakthroughs society needs to decarbonise transport across air, land and sea."

Rolls-Royce hopes that the Fédération Aéronautique Internationale (FAI) will certify and officially confirm the results as new World Records in the near future.
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TAEZZAR

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Spirit of Innovation uses a 400kW electric powertrain

Rolls-Royce said Spirit of Innovation was more than 132 mph (213.04 km/h) faster than the previous record set by the Siemens eAircraft powered Extra 330 LE Aerobatic aircraft in 2017.

It reached a top speed of 345.4 mph (555.9 km/h) over 1.9 miles (3 km) and 330 mph (532.1 km/h) over 9.3 miles (15 km).

It is also thought to have broken the fastest time to climb to 9842.52 ft (3,000 m) by 60 seconds with a time of 202 seconds.

The aircraft uses a 400kW electric powertrain - the equivalent of a 535 BHP supercar.


More important & more impressive, is how far will it go ??? :don't    know2::gracious::finished:
 

TomD

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More important & more impressive, is how far will it go ???

A Tesla battery pack weights around 1200 pounds and has around 100kWh of energy. Looking at that plane, I can't imagine it weighing more than 3000 lbs and very probably much less. That would seem to limit it to no more than a Tesla sized battery. A 400kW motor at WOT (wide open) would drain a 100kWh battery in 15-20 minutes max. Throttled back to a slow (180 mph) cruise speed would probably a little more than double that.

Not quite ready for prime time.
 
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Buck

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but 'they' keep giving us example after example of working models...


the collective we get to finish the story: We'll be flying everywhere using electricity...one day




it helps keep some of us interested, yet ignorant, at the same time

it's the New Science
 

Bigfoot

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A 400kW motor at WOT (wide open) would drain a 100kWh battery in 15-20 minutes max.

That's exactly what makes the BBC such a fraud. The plane can't even do a normal cross-country flight, let alone a ferry flight. Who wants to buy an aerobatic plane that you only use at a single airport, and can't leave sight distance of the runway?

All the elite who promote climate change should have to fly via electric planes only. Hear that Gates? Schwab? Rocks? Roths? Lead by example and ground yourselves, you feudal sons of beaches.
 
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TomD

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Here's how the math works on the conversion between gallons of gasoline and kilowatt-hours of batteries.

1 gallon of gas contains around 120 mega (million) joules of energy. A joule is a metric unit of work (force times distance). Gasoline motors aren't particularly efficient and convert only around 40% of the potential energy of the fuel into work, so a gallon of gas will give you right at 50 mega joules.

In the metric system a joule and a watt-second are, by definition, the same. Therefore, a kilowatt hour is 1000 watts times 3600 seconds (one hour) which equals 3.6 megajoule. Electric motors aren't 100% efficient but easily beat out gas motors, call it around 85%. The actual energy yield of the 1 kilowatt-hour is 3.06 megajoules and a 100 kilowatt battery will yield 306 (3.06 x 100) megajoules.

Your Tesla battery total energy yield will be 306 megajoules. We learned in the 2nd paragraph that a gallon of gas contains around 50 net megajoules, so a 100 kilowatt hour battery very closely equals 6 gallons of gasoline.

A bigger problem than total capacity with batteries is weight. That 100 kWh battery weighs 1200 pounds whereas 6 gallons of gas weigh around 36 pounds. Batteries need to increase their energy to weight ratio by 33 times to just match combustion energy.
 

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Here's how the math works on the conversion between gallons of gasoline and kilowatt-hours of batteries.

1 gallon of gas contains around 120 mega (million) joules of energy. A joule is a metric unit of work (force times distance). Gasoline motors aren't particularly efficient and convert only around 40% of the potential energy of the fuel into work, so a gallon of gas will give you right at 50 mega joules.

In the metric system a joule and a watt-second are, by definition, the same. Therefore, a kilowatt hour is 1000 watts times 3600 seconds (one hour) which equals 3.6 megajoule. Electric motors aren't 100% efficient but easily beat out gas motors, call it around 85%. The actual energy yield of the 1 kilowatt-hour is 3.06 megajoules and a 100 kilowatt battery will yield 306 (3.06 x 100) megajoules.

Your Tesla battery total energy yield will be 306 megajoules. We learned in the 2nd paragraph that a gallon of gas contains around 50 net megajoules, so a 100 kilowatt hour battery very closely equals 6 gallons of gasoline.

A bigger problem than total capacity with batteries is weight. That 100 kWh battery weighs 1200 pounds whereas 6 gallons of gas weigh around 36 pounds. Batteries need to increase their energy to weight ratio by 33 times to just match combustion energy.
It's probably worse than that. I assume that 100 kilowatt battery is a "rated" capacity and not a "usable" capacity? You don't want to drain a lithium battery to 0. At best you might get 80% of the rated capacity. And that's with a new battery. They degrade over time also. So, on average you might be closer to 4-5 gallons equivalent.
 

MrLucky

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A bigger problem than total capacity with batteries is weight. That 100 kWh battery weighs 1200 pounds whereas 6 gallons of gas weigh around 36 pounds. Batteries need to increase their energy to weight ratio by 33 times to just match combustion energy.
Also as gas is consumed the weight is gone, where as when a battery is depleted, the weight is still there.
 

Buck

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and last i checked, there isn't enough lithium available for the world to go all electric

there's a story i read a few months back, in Long Beach Ca, there are a few vacuum ships that are Beta testing for sucking the muck up off of the ocean floor then to sift that down to remove the rare earth metals and anything else they suck up off of the bottom


i wonder what type of irreversible damage will be done to the ocean floor, to the animals and plants that exist, and we'll never know


THIS IS INSANITY, SPLITTING WATER, SUCKING THE DEBRIS FROM THE OCEAN FLOOR, DEALING WITH COMMUNISTS AND THEIR SUPPLY, JUST SO WE CAN GO ELECTRIC

pure unadulterated bullshit, 100%
 

solarion

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It's probably worse than that. I assume that 100 kilowatt battery is a "rated" capacity and not a "usable" capacity? You don't want to drain a lithium battery to 0. At best you might get 80% of the rated capacity. And that's with a new battery. They degrade over time also. So, on average you might be closer to 4-5 gallons equivalent.
Particularly so if one "quick charges". It's a consequence that's seldom discussed by propagandists peddling this immature battery tech.
 

WQFTruckster

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Some quick math with those numbers, I'd need roughly 6500 lbs worth of battery to match the go juice potential of the 26 gallon tank on my Tahoe (which weighs about 5600lbs).
 

solarion

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The constant propaganda and outright lies from global cooling, global warming, climate change, weather activists is tired. Battery tech is simply not ready to replace so called "fossil fuels" and neither is the infrastructure.
 

chieftain

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Current battery technologies will NEVER have the energy density of petrol.