Latest Invention : Regular Jet and Musk Electric Jet. Which one is better?

 Name : Yogatama Mulyo Ardiansyah

NIM : 21.03.52.0006

Subject : Reading

Assignment : Latest invention

Musk Electric Jet

Elon Musk has said he is “dying” to expand beyond cars and trucks with Tesla and build an electric supersonic jet.

The planes would use vertical take-off and landing (VTOL) technology to rise to a high altitude, before using battery-powered propulsion to reach speeds in excess of 1,236km/h (768mph).

The polymath billionaire said the only thing stopping him from developing the next-generation aircraft is his current workload.

Mr Musk currently heads two multi-billion dollar companies – SpaceX and Tesla – as well as neurotech startup Neuralink and tunnel-digging venture The Boring Company. He is also the co-founder of the artificial intelligence research laboratory OpenAI and the father of six children.

“I’m so dying to do a supersonic, electric VOTL [sic] jet, but adding more work will make my brain explode,” he tweeted on Thursday, using emojis for the final two words.

 

It is not the first time Mr Musk has spoken of his ambition to design an electric jet, having previously detailed a concept during one of his appearances on the Joe Rogan podcast.

“I have a design for a plane,” he said. “The exciting thing to do would be some kind of electric vertical takeoff and landing, supersonic jet.”

The concept would use two different propulsion systems: one to lift the plane off the crowd and into the sky, the other to propel the craft forward at supersonic speeds.

“The interesting thing about an electric plane is that you want to go as high as possible but you need a certain energy density in the battery pack because you have to overcome gravitational potential energy,” he said.

“Once you’ve overcome gravitational potential energy and you’re at a high altitude, the energy you use in cruise is very low, and then you can recapture a large part of your gravitational potential energy on the way down.

“The higher you go, the faster you will go for the same amount of energy. And at a certain altitude you can go supersonic with less energy-per-mile – quite a lot less energy per mile – than aircraft at 35,000 feet.”

In 2013, Mr Musk came up with another idea for a new forms of transport called the Hyperloop. Without the capacity to work on it himself, he wrote a whitepaper for the 1,000kph vacuum tube pods, which other startups then used to develop their own versions of it.

Mr Musk subsequently funded competitions to encourage its development, with the hope that Hyperloop networks could provide an eco-friendly and more efficient alternative to plane travel.

 Source : https://www.independent.co.uk/life-style/gadgets-and-tech/elon-musk-electric-jet-tesla-b1934716.html

Regular Jet

Jet aircraft have one or more gas-turbine engines, which provide thrust to move the aircraft on the ground and through the air. Jet aircraft use Jet A fuel, often fly faster than turboprop aircraft and are capable of flying at higher altitudes than pistons or turboprops. Depending on their capability, these aircraft typically fly at altitudes below the airlines (20,000-25,000 feet) or above the airlines (above 40,000 feet). The size and flight range of jets varies widely – some have a single pilot and very small cabin, while others can accommodate a meeting-like environment and are capable of flying internationally. The vast majority seat six passengers in a cabin roughly the size of a large SUV and fly an average stage length of around 1,000 miles. Like their turboprop counterparts, jet interiors are often configured similar to a small office, where co-workers can meet and make productive use of time en route to a destination. Jets are often faster than turboprops, making them attractive for businesspeople who need to reach a destination in the shortest possible amount of time. Like other general aviation aircraft, jets typically use small community airports.

 Source : https://nbaa.org/business-aviation/business-aircraft/jet-aircraft/

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