OTV 8 (NEW CONCEPT + 1st FLIGHT!)

variable pitch controlled drone. Celebrating creativity with a new Over Terrain Vehicle concept!
Flight starts at 6min.
No, could not find a way to add more blades, will try harder next time....;-D
If you feel like sponsoring the channel, just buy any of the DIY e-books up for sale at amazingdiyproje...

[@Im_Ninooo]

that's a very interesting design and it seems to work very well! can't wait to see the next iterations :)

[@index7787]

That frame is going to have to be extremely rigid to get a smooth enough PID tune, but if it's working on the prototype frame, that's a really good sign that a stiff frame could be buttery. I would look into making a cheap mold and making the frame a custom, hollow, clams-shell, carbon tube with chunky corners. (wold look sick too.)) Also, when it gets relative velocity, while in flight, the range of the fixed pitch servo will need to get biased to match (the PID tune will do this automatically but at a delay, It would be better to code it in.) as well as PID response scaling with relative velocity, that might need some consideration. You might run into saturation issues with the fixed pitch props in flight where they don't perform as expected, but this could be instantly stopped with a velocity cap to maintain the headroom required on the upper motors/servos but using a GPS module and having a manual offset for current ambient wind levels, it's not a perfect relative air velocity, but it would ballpark enough for the PID tune to do the rest. for extended/fast forward flight, you might want to bake in a specific motor RPM/blade pitch/PID tune to get it perfect for cruising, you can vector that tune away from forward facing (simple matrix math) later to get it to work in every direction of flight, but that system would need pitot-tubes to get the accurate vector needed to run it, the GPS + wind-speed trick wouldn't be enough there. also, might be a good idea to run multiple gyros at either power section and sum the difference to cancel out frame wobble (to an extent), could speed up prototyping. I also highly recommend a GPS unit for data and ease of testing later. Looks dope, best of luck man. I've always wanted to try a pusher control on a flat flying heavy lift drone, very interested how this plays out.

[@mattiasfagerlund]

Very cool! How come you're using variable pitch propellers instead of varying the speed of the propellers? Instant powa?

[@bitluni]

Very promising design. Can't wait for the next part! The pitch control on the balance rotors is clever since you don't need to fight the inertia especially on the big ones!

[@AmateurInventor]

glad to see you here. you guys are the reason I'm interested into elctronics.

[@hanginwithjames6727]

Incredible work, thanks for sharing, inspiring and regularly contributing to the world of flight! Thank you!!

[@artmckay6704]

The common denominator that I have seen among various different successful inventors is DETERMINATION. Not much else seems to matter at all. Different inventors have different skillsets, different levels of ability, and different approaches. The salient quality which - alone - leads to success is, of course, determination; the drive fueling the project. Thomas Edison was a scoundrel, a thief, and a not terribly bright person but he had determination and he would not accept defeat. Thomas is a horrible example because he was such a despicable human but, his example does illustrate the role that determination plays in the invention game. Unfortunately, for his victims, Thomas had no moral or ethical limitations, he had only the indomitable will to win. On the brighter side, there are many decent and good people who choose to invent things. I wish you only the best of intentions and I sincerely hope that you are immensely successful with your new flying technology. You need only the determination and the rest will fall into place. I want to see you produce the final product. That is going to be very exciting! :) PS: You might consider placing the upper control fans on long arms to take advantage of the mechanical magnification of power that occurs with the lever effect. Less power needed and more control.......

[@daskasspatzle2396]

This is for sure the most interesting thing with propellers i have ever seen :-)

[@markp8295]

Amazing work. Thank you for sharing.

[@ShahabBayat]

Elegant design... It seems to be much safer than sitting in between 4 motors in quadcopter setups...

[@heatshield]

Too cool. Every time, it's like opening a new book that I know I will enjoy.

[@alexbadillo9940]

I wish I had 30% of the capability to understand the mechanism and all the electrical components that go into this. Awesome keep doing what you doing.

[@Ben-Dixey]

You certainly are great at coming up with new and unusual concepts. wish I had a brain like yours. 👍

[@joshpit2003]

Can you explain how this design offers any advantages over a single main rotor type of small helicopter? I keep looking at it and thinking you could eliminate 4 of the 6 props. lol at the "no, I could not find a way to add more blades".

[@ferrumignis]

How are you envisaging it working with only two props? Basically a two rotor heli with swash plates?

[@PauMallol]

@@ferrumignis or a bicopter (already implemented in Ardupilot for instance). With two tilting motors you can get the three rotations necessary for flight.

[@q.e.d.9112]

Excellent. Can’t wait for the finished product. Liked and subscribed.😊

[@SDiYchannel01]

Great. This balance structure I've never seen before, very impressive!

[@hagglundfpv4557]

Rc flygare från norr här. Har själv ett intresse av att skapa/designa, som har lett till ett antal rc plan, utskurna med en hemmabyggd ”hot wire cutter” och ett antal andra skapelser, så jag förstår känslan av att hitta nya riktningar och sätt att avancera på. Uppskattar dessa videor och såg genast potentialen i denna version redan i thumbnailen. Ser fram emot fortsättningen 👍

[@420dax420]

Impressive design. Can't wait to see more of this.

[@johngatsby1473]

This is my favorite engineer....this guy plays hard.

[@TheScottsawesomeart]

call it ... air scorpion!

[@gacha24]

This is your best creation so far in my opinion :)

[@jbrenes]

When the center of mass is not on the horizontal axis that makes it so when stopping from forward movement you will have a rocking chair effect. Quite a challenge balancing all the vectors on a system like that...kudos and great work!

[@arnavkumar3060]

That is what the PID systems are for. i.e. smooth transition and elminiating unnecessary oscillations.

[@Bill-lt5qf]

I like the design, looks like you could sit in it with your feet on the ground, which could help with takeoff & landings.

[@prof.heinous191]

Lost for words with your creativity - amazing, brilliant,.............!!

[@gerryb6367]

The concept is ingenious! I never saw this before. I love the primary functionality of the stability system, enabled by the variable pitch propellers, but there are so many potential failure modes (and no chance of redundancy),I sense as an engineer, it would take a lot of testing to verify the reliability. Please do the Design and manufacturing FMEA's before you fly it personally! Having said that, the stability system is analogous to a helicopter cyclic pitch system, and they seem to fly OK.....

[@user-ks2nq1cs9q]

Dude amazing projekt thanks for sharing it with us and keep it going 🙌

[@beppuccio7803]

When I saw it balancing on the rod I was like "whooooaaaa man! That's magic!" ... And then it flights... That's an amazing project with such a sci-fi flavour! Keep going your projects are incredible!!!!

[@andersson.l.e]

So interesting. Nice to be part of your experiments.

[@joacimwennerberg8310]

Fantastiskt! Very interesting. Cool to see it balance.

[@stevefoster258]

VERY nice designing. VERY cool!

[@GiesbertNijhuis]

Another very unique creation. Love it!

[@wongowonga]

It's thanks to pioneers like you that we have innovations like helicopters. Very creative.

[@Johow]

Freakin amazing. Keep going!!!

[@shurmurray]

Wow... that turned out to be great concept! May look dumb at first, this is actually the result of evolution. Can't wait to see 1:1 vehicle!

[@kentherapy7022]

Number 5 is alive.....👀

[@andyb2339]

I love how it balances on the point! Obviously not any harder than balanced flight, but very futuristic looking!

[@amazingdiyprojects]

Yeah, isn't it amusing that we are so accustomed to see traditional drones holding their position perfectly in the sky so that it doesn't seem like much at all, but when you let the flight controller show off in a way that you don't see every day, the wow-factor is back for a moment. Just love this kind of tech and the possibilities it opens up.

[@Twiztedcyph]

Very cool. Great job!

[@mikestokes3601]

I am so, jazzed, excited, thrilled. In my head I have dreamed of a personal flying machine like this. Something similar was described in a sci-fi book years ago ( I don't recall the title). Next iteration, one large enough to hold a 250 lb man. I wish you total success, and I want to fly in the finished machine.

[@MrTjornevik]

Amazing, as always!

[@TrudgeRC]

I like it! Could the control motors (if powerful enough), rotate to face upwards in an emergency (i.e. loss of lift motors)?

[@mungewell]

Do you mean like a helicopter auto-gyrating? Store enough energy in rotating blades, then use that at the last minute to prevent a hard landing...

[@pedropablomorarojas7021]

Tu canal es asombroso, saludos desde Chile

[@thdyd]

det er intet mindre end genialt!!

[@jimrobert6317]

Please consider buying a face shield to wear when testing. If the blades strike and disintegrate you could lose an eye from the fragments. Lincoln electric makes a Z87.1 rated face shield that is comfortable and easy to see through. Lincoln Electric OMNIShield, K3750-1. You only get one set of eyes! They cannot be replaced.

[@poolmotorrepairguyFL]

Jay the Florida pool pump motor repair guy When Service Calls Longwood approved ! that was good info 👨‍🔧 amazing

[@ablasttv]

Great work and cool that the prototype works, but IMO if you're going for a commercial product someday, giant blades right next to the occupant aren't gonna fly (pun intended). Try a big box for a passenger with 2-4 fan blades at the top. Westworld Season 3 has an example of an eVTOL craft

[@mikerhodes9198]

Very interesting project. I wish you good luck.

[@bobwinn]

So it's going hybrid I guess. Why use variable pitch for stabilization? You could just run 4 motors in a X combination like a regular quadcoptet. The quad controller provides stablizstion. There is a Thai fellow who has been building gas electric machines for years in this configuration, he uses them to spray pesticides on fields. They carry large liquid volumes and are very stable. He uses coaxial props for the gas motor/lift. But similar idea.

[@tazanteflight8670]

when you post a video on youtube, goto reddit, and post a link to your video on all the science etc subs. vehicle subs, do it yourself subs, quadcopter subs....... You deserve an award, or to be knighted, for your 8 gasoline engine human ride able "quad copter", that you did many years ago. You literally did the impossible.

[@Alexander_Sannikov]

this is really cool, but those props are terrifying

[@andrewdec8049]

I made an identical concept a few year ago. Mine had only one main propeller though. So I can confirm that it works. Your major problem will start when flying i gusty winds. But it works. This concept adds extra weight that does not contribute to lift, but the concept is sound. One thing I was always curious about - what flight controller program you use? Your own, or for instance ArduCopter?

[@andrewdec8049]

Still don’t know what flight controller program you use. Could you share this information please?

[@amazingdiyprojects]

The easy to set up and super versatile KK2.1: hobbyking.com/en_us/hobbykingtm-kk2-1hc-multi-rotor-hard-case-flight-control-board.html?queryID=df1c4324c333e07d48de919ae8117f45&objectID=46634&indexName=hbk_live_products_analytics

[@andrewdec8049]

@@amazingdiyprojects Great, thank you! I use different Pixhawk controllers. But what software? I find software to be more critical than hardware itself. I use ArduCopter software, but I’m not too happy with it. Hard to use it if you want to go with non-standard configurations. Need to modify the code yourself.

[@amazingdiyprojects]

@@andrewdec8049 The kk-board actually runs the stock 2.16 software. I The only thing I really miss is a barometer with accompanying altitude hold functionality, but the fact that you can configure this controller to fly pretty much any configuration of flying machine imaginable without even connecting it to a external computer is very attractive when you are trying out one concept after another. If I ever reach my goal I will dive into the flight controller-universe and see if there is a better one for the design at hand!

[@andrewdec8049]

@@amazingdiyprojects Yes, this makes that controller very appealing. The only problem I see is that it uses an 8-bit processor. May be struggling with all that processing. As for baro - barometer it’s not very precise, plus it is subjected to ground effect. I’m sure you know it. Using Lidar instead of baro makes large difference for me. One can fly with Alt Hold with Lidar instead of barometer. I understand from your comment that the KK board does not support Lidar either. That would be a real downside.

[@rogerdueck9725]

Love your videos, keep it up!

[@keithbrown2458]

Your concepts are fascinating, I wish you the best, I most certainly believe you will succeed.

[@cbpuzzle]

A very Star Wars design IMO. Reminds me of how the Boba Fett Slave One ship flies.

[@mungewell]

With the top motors electric and the main motors petrol, you could use small generator coils on main motor(s) to continuously charge batteries/supercaps. With enough backup power to safely 'out of fuel' crash.

[@nightdogggg]

I have come to terms with the fact that on earth we have propellers, a crude and dangerous form of propulsion. I wish someone would explain why we waste time on light aircraft that use propellers. That guy that is working with ion thrust, now there is a worthy project. This is hobby stuff. You need a car that can fly, but not in a human blender. I would say your genius is being wasted. But , I just cannot wait to see your next vid. Thanks for the hard work.

[@user-bv2kv8hx5d]

4 motors for balancing and 2 motors for trust? Why don't use just 4 motors scheme? 4 motors for balancing - this is too many points of failure in flight?

[@djsollar]

that job could make adjustive collecting pitch props It is just another concept but I don't see better performances than standard multirotor helicopters or save more energy maybe make with that sabilisation system ornithopter with flatter rotors good luck

[@Hladilnik]

Where did you get those big blades(props) for the main 2 motors. I have a project of my own where i would need something of that size

[@mrfxm55]

It's 3 axis of rotation or one at least in and out and converging magnetic fields of different configurations I won't divulge here. 3 different ones for sure very light construction with a complete enclosure. Shape is of no consequence.

[@iforce2d]

Very cool concept. I think yaw authority will be kinda weak when there is a greater payload/pilot onboard (assuming the two main rotors are always same speed).

[@amazingdiyprojects]

Yes there are still many unknowns. The signal cable to the thrust motors are connected in parallel and are not a part of the PID loop, so same speed. Im kind of surprised it can self level as well as it does considering the center dead band in the variable pitch setup. I did have to make 0.2-0.3mm shims to remove the worst slop in the otherwise beautifully crafted variable pitch design. It will be interesting to see how the craft performs in the wild! :-D Im not super hopeful though....

[@kirill2525]

sooo why not just use a quad design like from a drone. they alredy have stabalazation sofwere for it, just scale it up

[@neobikes]

they discovered quadcopters you know? why bang throu closed window, when u got doors open ?

[@Plano04]

Why use 4 collective pitch motor as controll when you could get away with only using 2 and rev up and down the lift motors for yaw?

[@wompstopm123]

this could be programmed to work with only 2 motors if u made one at the top point down and one on the side point left, and change direction to control its attitude

[@Pushyhog]

somebody's wealthy, sponsor his team! He can stand an fly in it too.

[@markl9580]

Wouldnt it bemore stable if pilot/batteries were under lifting props like a hang-glider?

[@Sanisfaction]

couldn't you use a further extending pitch control to...... lose 2 of the top motors ?

[@AuroraCypher]

Very cool flying vehicle ! What flight controller are you using ?

[@stefanwelker956]

If you want to make it land with a human on board you can replace the stick below it with a high power pogo stick so it could catch the impact.

[@romeowhiskey1146]

Hope your business TAKES OFF, as well.

[@forton615]

You can call it "The Scorpion" because that's what it looks like.

[@АндрейСуханов-п3т]

Низкий центр тяжести для нормальной устойчивости??? Нет, не слышал...

[@carbonie_fibraro]

thanks for sharing! looking forward to your next post! 👍

[@johnt.4928]

...guys like you should get support...to get things done!😊

[@amitaimedan]

Very nice, but it looks over complicated.

[@юрийдоценко-х5ж]

Интересная конструкция... Успехов !

[@le_proto]

It is a good design for static forces. But not in for dynamics. Take care!

[@kestans]

this thing could easily level your bush fence :)

[@yv6eda]

Amazing design!

[@cinnybun739]

But bro... I can't see any real benefit to this design.

[@NeonsStyleHD]

Plastic gears is asking for trouble.

[@migfer7]

Great work ,this is how inovations are created..

[@jumbleblue]

Why the heck is there a polini box in the garage?

[@ringtanz]

you should call this scorpion drive

[@PMofKhanadah]

already ancient tech. motors and propellers.

[@locouk]

Elon Musk, hold my beer!

[@swishpan]

Very cool indeed! How did you set up the flight controller mixing? I'm guessing the big props have just throttle, then the top ones have pitch, roll and even yaw?

[@amazingdiyprojects]

Correct!

[@wompstopm123]

4:30 German engineering at its finest

[@gmeast]

... great engineering decision to separate attitude control requirements from the bulk, vertical lift requirements and other overheads ... just wonderful!

[@anyC]

Bravo. Promising. Thanks.

[@microgliders]

great concept, well done 👍

[@Inertia888]

It looks like it could land on a power line. I saw someone in another channel thinking about inductive charging? I am now wondering if this would be possible?

[@forestMog]

Our power company here in California could certainly use a drone that would refuel off a power line. We have major fire concerns. Drones keep flying to check power lines here.

[@dustinmcdermont699]

Looks like a flying scorpion

[@inlywang8157]

informative and impressive👍

[@paranoiia8]

its like flying scorpion.

[@ddnorth65]

Very nice ! Do you plan on building a long endurance internal combustion version in the future ?

[@MasterIvo]

another amazing diy project

[@djorion8098]

WOW. thats an awesome machine! An perfect drone to take good stable pictures in the end ?!?

[@ghostisblack]

really cool design

[@soppdrake]

Amazing concept!

[@rozsdas69]

Woo "flying scorpion"