Hey guys,

Just wanted to introduce a new drone with 1 hour flight time: https://turncircles.com/products/drones-quadcopter-TC411

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I do not know if it is a joke but to have 60 minutes flightime with 11' props you need a motor/prop combination with almost 4 times the efficiency of motor/prop actually on the market.

Rainer K. said:

The part is a joke, the discussion is superfluous

https://youtu.be/tqP6CyFyI84

This hexa flies without loading 55 minutes.With 1 KG load 30 minutes. 10000 mAh

Andrew got an interesting point. The focus may change between the types, but there will always be a niche for each airframe type.
Just like Russian Mi-26 and Antonov. They are not the best sellers but there's still need in the market...

About the efficiency, we've focused on the overall system, measuring the flight efficiency. Putting the most efficient Plettenberg motors doesn't necessarily contribute to the flight time as they are heavy. Vice verse the props. As the size of the propeller grows, so does your airframe... enlarging the system has no limits. We've stopped where we've achieved 1 hour flight time...
Nice hexa


Hi,

Antonov was soviet company but now it is Ukrainian. Love their planes and it's sad to know we are not in a same team anymore. That's for Mi-26 it's real giant with really specific market niche. So I totally agree with your point, every vehicle can have its own niche.


Kaan Ozgen said:

Andrew got an interesting point. The focus may change between the types, but there will always be a niche for each airframe type.
Just like Russian Mi-26 and Antonov. They are not the best sellers but there's still need in the market...

About the efficiency, we've focused on the overall system, measuring the flight efficiency. Putting the most efficient Plettenberg motors doesn't necessarily contribute to the flight time as they are heavy. Vice verse the props. As the size of the propeller grows, so does your airframe... enlarging the system has no limits. We've stopped where we've achieved 1 hour flight time...
Hi Dmitry, sorry, didn't know it was Ukrainian. Thank you for the correction.

Kaan - 

I'm a two time world record holder for flight duration. So as you can imagine, I've done years of research on what is possible and as such found out what is not possible.

Please do not try to convince this forum that a ship with 11" props can fly for 1 hour.  Not possible given existing rotor and battery technology (LiPo, LiHV, LiIon, LiS, Hydrogen Cell). 

If you want to make a solid contribution to this forum and industry, up your prop size to 15" then design a lighter and stiffer frame. I suggest an X. Then 1+ hrs using LiHV 10C batteries is a possibility (but not easy).

You obviously have good design engineering skills to make sleek and pleasing lines. But marry that ability with someone with solid mechanical design.  An H design weighs too much for a duration ship and this forum knows it.

A safe bet is to go with T-Motor 17" props + MN3508-29 motor + DYS 40A ESC so then you more duration margin and can incorporate more "design", which always has a weight penalty--less flight time.  So pretty and 1+ hr is possible.

The only thing that can beat the 17" is a U8 swinging 28 - 30" props. But start small, my friend, and learn before you go big. 

Complete scam, first answers said it all, (repeat) but thanks for the fun, interesting  how this forum regularly gets some of these ... Guess price of entry is close to zero.

This one looks  like it's getting traction,  complete with "Hi ,.,, thank you for ..." responses.  Sea lion,

Did like the "monobuild carbon airframe", GPS and ESC's will have a great time underneath. And loved the "use of Halback arrays"  in motors, complete with render with CF circular top plate. Of course! But  "drone killer" beats it.

42AH?  Ah, detail, detail. What, scammers are not allowed typos?

Zero engineering, yet cute render. You can fool all people sometimes, some people all of the times.

Thanks but no thanks in advance about signing up for your scam newsletter.

Wrong forum.

Hi Forest,

I very much appreciate your comment. This kind of exchange was exactly what I was hoping from this forum. But turns out a lot of people finds it easier and "ethical" to accuse one just like that without even respecting the time and energy put into this product. Funny is also that nobody asked me "how did you do it"...

Anyway, thank you Olivier to you too, it is a good point to test the ESC's lifetime. They make the one hour flight but I don't know yet for how many flights. And this kinda stuff is what we need to test before hanging a price tag.

Take care,

Kaan

 


Forrest Frantz said:

Kaan - 

I'm a two time world record holder for flight duration. So as you can imagine, I've done years of research on what is possible and as such found out what is not possible.

Please do not try to convince this forum that a ship with 11" props can fly for 1 hour.  Not possible given existing rotor and battery technology (LiPo, LiHV, LiIon, LiS, Hydrogen Cell). 

If you want to make a solid contribution to this forum and industry, up your prop size to 15" then design a lighter and stiffer frame. I suggest an X. Then 1+ hrs using LiHV 10C batteries is a possibility (but not easy).

You obviously have good design engineering skills to make sleek and pleasing lines. But marry that ability with someone with solid mechanical design.  An H design weighs too much for a duration ship and this forum knows it.

A safe bet is to go with T-Motor 17" props + MN3508-29 motor + DYS 40A ESC so then you more duration margin and can incorporate more "design", which always has a weight penalty--less flight time.  So pretty and 1+ hr is possible.

The only thing that can beat the 17" is a U8 swinging 28 - 30" props. But start small, my friend, and learn before you go big. 

Kaan, this discussion shouldn't even be taking place. Do you have 1 hour flight time? First step is video (one hour long, with stuff happening in the background that make it hard to spoof) or it didn't happen. Then the questions can start.

Regarding my title gripe, back in the day we had to rol our eyes when "drone" implicitly meant "armed aerial killer robot". Now, we have to roll our eyes when it implicitly means "quad". Your title should be "Quad with 1 hour flight time", the important bit info is the quad. Drones with 1 hour flight times have existed long before this forum was created.

Very good point Kaan.

And yes, please tell us about your solution. A video will also be nice :)

Nice comment, Forrest :)

Br

Tommy

I see. I don't know if I can change the title now...

You're right. Video became certainly my first priority now.
I have 58 minutes flight. I will publish the video as soon as I exceed 60 minutes...

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