Sir....one has to be smart to design an aircraft. That alone leaves me out in the cold. Oh well, I'll just wait and see who wins...

Clear and concise. I greatly enjoy your highly informative videos! Keep them coming- 🖤

Thank you. Very good detail in your info!

Brilliant work.... !!! I am not an AE but using these design principles, it seems relatively easy to design.

Zero room for innovation with such specific design restraints

I like your videos💞

This is a really neat video!!! I would love to build this girl, and test flight it! I didn’t see the first part video, but do you have a cost estimate for the materials needed to build this project?

Nuclear diamond battery is the future of air taxi🇵🇭🇵🇭💗💗🧡🧡💛🌐🌎🌎🌍🌏

Excellent 🌻

I think you can reduce energie, t, ll make the V-tol of grafeen, the most light construction material on earth. Further on you could use the concept of the lifting body. Also shifting wings could do a good job in effincitie in speed and stability. Problem with grafeen it,s a expensive material to make, if you could make it cheap, you could revolutionige the aviation industry.

Can you reduce the total weight further by using carbon fibre parts including the battery shells?

How come nobody adresses the recharge? I understand that gotta get through point A to get to point B, maybe im jumping the gun here but if you have a switching power supply you could make these things run for a long time and possibly extend battery life cycle as well.

Do you have this calculation for only rotorcraft, without the wings? It is OK if it is less than 100km cruising

I’ve just watched this fantastic video (How to design a 100km range EVTOL electric aircraft”). Everything on this channel is marvellous. Anyway in the said video, there is repeated reference to a spreadsheet. Is that spreadsheet downloadable from anywhere?

Can you share your spreadsheet used in this video with this group? Highly appreciated 👍

Propellers 48 inches ,should they be CW and CCW ?

Good

Design. What's bout certify with battery fire protection?

Did you factor in landing hover power also? i.e. multiply hover x 2 ?

It is easily possible to vertical take off & land, using three phase direct electric power to some stage of cruising altitude (using a detachable electric connecter). Also a hybrid of hydrogen and battery power, using hydrogen lifting power at the same time as using it as fuel to cruse to extend the range

The maximum thrust capability of your motors is WAY too low. In order to have hover stability (using fixed pitch props) you need at least 2.5x thrust available. Increasing motor power (by adding extra motors or finding larger motors) would add probably around 26kg. You didn't spec the weight of the esc's...probably around 0.5 kg for the motors you spec'd. More for larger motors; say add another 5 kg. Wiring?? Even if you have the batteries right at the motors you still need to connect all the batteries together. Add another 10-15 kg. Spars, landing gear, control surface servo's... You start to see why building a functional eVTOL isn't a backyard project. "Airplanes are always heavier, and cost more than originally designed"

When you say aircraft surface area is 30.5 square meters- how did you find that? is that the surface area of the side (one side or both sides?) and top of the fuselage as well as the top of the wings, or just the top of the fuselage, or just the side of the fuselage and top of the wings? I am confused where you got 30.5 m2 from because your wing area is only 12, and the fuselage is not much bigger if your just counting surface area from the top.

Very nice. It seems you've already completed design for us..) what's left to be done then? (I enjoy all your videos..)

I really got the plan of doing my eVTOL. Thanks for your knowledge But I do have doubt in formula substitution can please explain the value that are used in Range = 13.45 x 1000 x 3600 x 0.82 x 1/450*9.81 x 1

Thanks very much! where can I find the spreadsheet?

A STOL EV, is far more efficient than a VTOL EV. That is where we should be focussing our efforts.

is the propeller size in the chart the radius or diameter of the prop?

Pensei numa forma de fazer um drone libélula muito eficiente e elétrico, no lugar de motores usaríamos apenas alguns reles e eletro imãs q iriam servir para bater as asas. Uma pequena turbina convencional a combustão, iria gerar energia elétrica para carregar as baterias, mesmo quanto ele estivesse pousado. Assim iriamos ter o formato mais eficiente de voo , numa máquina hidrida, elétrica e a combustão, que iria dar uma enorme autonomia de vôo, porque não iria ser necessário carregar pesadas baterias, visto q a energia estaria amazenada na forma de combustível líquido ou gasoso . Uma versão mais limpa, poderia ser feita a base de hidrogênio, então não seria poluente. 🖖🏼👽

I want to start evtol company in India.....Will you guide me through it

How could I get in touch (email?) with the designers of Quimbayai, David Sebastian Matamoros Buitrago or Juan Sebastian Escobar?

Hii Sir Pls tell how to get the Wing Area

i am interested can you share spread sheet and 3d design of EVTOL

We can use a supercapacitor or ultracapacitor dedicated only for (vertical) takeoff or landing. As they weigh much less than conventional batteries, they can reduce the overall weight and increase the range to some extent. The major disadvantage of supercapacitors compared to traditional batteries is they work in bursts, i.e. they charge and discharge relatively quickly. This can be an advantage here because vertical take-off and landing using rotors require precisely that.

I watch most of your videos and generally agree with you but this 460kg max thrust for 450kg MTOW can't be brushed over. With excess thrust of 10kg climb rate is 0.22 m/s, you're not going to reach your stall speed in 20 seconds. You're not going to have enough thrust to control the attitude or to gain any forward speed to get above stall speed. You need at least 1.2 Thrust to weight and more realistically 1.5. Also you have no motor out redundancy. Back to the drawing board.

Why has no one built a self charging electric vehicle it seems to me that it could be and should be done

Not sure what's the point of this without redundancy? You understand you can't carry people like that, right?

30 min reserve is too much requirement if there are a lot of landing sites ,and there will be a lot,also vtol could land anywhere safely , backyards ,street ,a completely new and different set of rules should be adopted. the faa should be kept away from electric aircraft.

आपको एक विमान बनाना चाहिए

I'll take 2.