Thank you for a great explanation of the KF airfoil. My name is Dick Kline and I am the inventor of the KF Airfoil. It has been tested on a Darrieus Wind Turbine and it improved efficiency by 47.04%. I salute you for your work. The concept originally came from a paper airplane back in 1964.

Having so much space but flying next to the high voltage power poles!! 😂😂😂👏👏👏

Really inspiring and simple approach. Love it 😍

I want to congratulate you for your wisdom. You are doing this and many are not. You are sharing the good and bad to help us learn. Thank you. There are many negative people in the world. Ignore them --- they are jealous. My best wishes to you.

Thanks, dude! A lot of good information in here. Coming from INAV, I found Ardupilot/Mission Planner quite challenging. I'm getting there.

Sensible Build, awesome flight.👏

Really nice build Jakub. Well thought out and well explained. Keep up the good work I think you're going to do great things.

Hello, im a high school student in Turkey. me and my team had financial issues about building a drone prototype and your wing design blew our mind! Really inspiring.

This is awesome! Loved it.

Outstanding job! Excellent video. Thank you for sharing.

That is brilliant and the video is really interesting and detailed . Thank you so much for taking the time. To do this.

Great build guys!

Nice work Ardu Pilot. That human fellow you got done alright too! Thanks!!

Well done. Keep the nice work, mate!

I wasn't even half way through this first of your videos I viewed, before I subscribed. You have an interesting but easy to understand accent, great organizational skills presenting material, great video simulations, and good background music. I forgot to mention great father/son cooperative development. Wish I had that. My dad is now gone. What is not to like? Keep going! - Jim

Subscribed immediately! Clear and makes you want to build one immediately!

Really fantastic, I was very impressed with the stability of that model and how much fun it must have been to fly. I found the programming part a little harder to follow but nevertheless, it is something that I would seriously like to have a go at making. Thanks for sharing this.

Also I am your new sub - commenter - and liker --- really great job --- I will look at the patreon as well. I am sure your channel will keep growing --- give it time --- never give up. Thank you.

thank you very much, for the inspiration and all the details, great job

Fantastic video, well done

Amazing build!

A modern da Vinci. Enjoyed the presentation.

Dobra robota! Super kanał! Super projekt! Sukcesów życzę

nice, thanks for the detailed video. Looks good! there are some nice ideas here. Dziękuję

Great build. 👍

Very inspiring!!!

Nicely done!

Superb !!!

Nice work!

Good job and good on your Dad !!!! 😉😎

Nice, thank for your lesson

This is so GOOD! 👍👍👍

This channel is the find of today... Love it!

Yo I was searching for the Australian flat pack builds on KZfaq. I couldn't find any so I looked up autonomous ardupilot builds and found your video!

I had a thought regarding the KFm3 airfoil. To find the difference in energy usage in flight between covering up the steps versus uncovered steps. How much of a difference in flight time the steps make regarding the drag that they would produce while in flight. Hopefully it would be negligible. Thanks again for a great explanation of the KF concept.

Awesome!! Gongrats!! Next challenge morph it into a V-tol... 😁

I made a plane like that before and we called it the big red boat. The engine was OS FP 40 and it was weak. We needed something like OS FS45 or 60 at the time.

Good Stuff!

"free from obstacles", cuts to field with power lines on it :D . amazing video though, thanks for the inspiration! (if only this stuff had existed back in the late 70's when my uncle used to break his months long builds in seconds!)

Nice build and fly demonstration. I started with a 3-channel motor glider. Moved up to a 4-channel trainer, and started building my own Flite Test Models. You should try a Simple Scout!

Hotglue is fast, but heavy. Thin double sided tape is fast and light. But great build, go go go!

Nice!!!

Looks familiar😄 but can it VTOL?

Beautiful design and execution. For landing, how about coming in low, back off the airspeed, raise the nose high and stall out.

Hot glue worked great for my first good models, and it's great for quickly getting up and going, but you will absolutely LOVE e6000 and CA glue. As long as the Cyanoacrylate doesnt melt the foam you use, in which case I'd switch to EPP foam anyways The amount of weight vs the strength you're getting from all that hot glue makes things a lot harder to balance and fly well. Give the other glue's a try, I know you won't go back!

You can make it a tailsitter by adding extended fins at wing tips and extended centre rudder as landing gears.

This is great! But I have a couple questions. Al Bakstrom's Plank planes, upon which this was based, required for longitudinal stability for the center of pressure to not shift in flight. This can be accomplished using a symmetrical airfoil or a reflexed airfoil like Max Munk's M-6 used in the original Pitts S-1. This KFM airfoil is clearly not symmetrical, nor does it appear to be reflexed, so does its center of pressure move? If it does, are you relying on the Ardupilot to provide artificial stability? Thanks again.

To reduce drag, could you cut the back of the wing on an angle, similar to the front?

Well. Done

Woow it’s awesome build my friend 😊very successful. Done subscribes

This is a GREAT and informative video- IF you are open to it being one! As a 55 year old Engineer, I cringed early on at the initial design choices and soft and bendable materials used, as well as DUCT TAPE being used to both make the leading edge more aerodynamic and ALSO as a control surface hinge. It was almost as bad as thinking you will find ANY kind of real character development in a Star Wars movie. It was a very good idea to show what the Ausie's are building for Ukraine- the point made is excellent. There is a difference between GOOD, and GOOD ENOUGH. You HAVE to view this video in this way, and you will come to see that many "poor" engineering/design decisions are not really that bad- they more accurately, GOOD ENOUGH. Consider for example, the fact that none of the electronics are protected from "The elements" (that is to say the weather)- you COULD complain that everything can get wet easily.... OR you can acknowledge the genius- no need to do anything more to make sure the electronics stay cool. Lastly, this video is really funny.... the initial flying field is small. Very hard for a relatively inexperienced pilot, which this guy acknowledges he is....... SO, he goes to a BIG field to be safe- with ENORMOUS wind turbines nearby and even more enormous- MONSTER size power transmission towers VERY close by. These two things make the massive field an obstacle course- the wind turbines ready to slice your plane in half, and the massive transmission line towers ready to ZAP the plane like a bug zapper in your backyard. This video is not only eye opening and thought provoking, it is hilarious. WELL DONE!

I've made RC boats, jetboats, gliders, powered planes, airboats and the one time I used a gyro was on a jet boat to stabilise the vertical axis spin. I have to report I didn't like the result. Two reasons I can identify, 1. It was destructive to the boat's ability to surf, which otherwise self stabilises somewhat to the wave. 2. I designed my jetboat to lock in on turns with minimal sliding. So though it was great for maintaining a course heading, it took away the feeling of piloting the boat. Persevere with developing your piloting skills. Do new maneuvers with plenty of height to do recoveries and push your skills slowly. If you try loops, remember the g-forces act on the wings and too much dive speed can break a wing off. If you try rolls, do 360 rolls first and learn recovery the right way up before you practice upside down. Get used to the orientation changes for directions relative to you with a simulator. Stay well clear of trees and poles, pylons, I mean like 10 meters clearance. If you are flying upside down high, it's kind of cool to half loop up or down to switch back to normal. Flying is not like walking or cycling, a car, give yourself a huge frontal clear zone at all times. Be aware that too slow flying will result in a stall so practice with height so you have time to work out how to recover. Be mindful of reducing power and return it back to you before the power completely fails. For many hours of flying without needing a lot of battery recharges, use bungy launch gliders or get a slick glider and learn to do slope soaring. Slope soaring is quite blissful, I used to think flying gliders was boring until I saw the aerobatics possible.

65 roll 45 pitch in self-level works for me on new builds, in arduplane and iNav. Landing in self-level is as easy as pulling back on the throttle and elevator, balancing speed for altitude. I highly recommend FPV as your next step, as ardupilot and iNav both have very powerful On Screen Displays, for showing you telemetry, while your line of site is no longer your range's limiting factor. Great video BC

Great!

Great model. No artf here. I’ll get those plans

Good job here . What visual design software did you use for this project ?

Delta wings do need a vertical stabilizer. The one at 1:09 is stable because of it's winglets. Gryos however can remove this requirement like with the B2 Spirit.

Very nice. I need to flash my flight computer with ardupilot and try. I will still probably crash into a tree though.

_Good thing I have a volume control to kill that random horn and banging noise!_

neat

While walking to calibrate you should make airplane motor noises!

Lol. Mother Nature loves the challenge of the word "can't."

How much did this build cost you? This is incredable.

How much more work would it be to add FPV to the setup?

Hello nice work. Can you do a vtol based ardu pilot tri or dual motors? ❤

Try adding some solar panels on the wing.

Well made video with on a channel with far too few subscribers.

That plane actually flies. Though it seems to me that it could be lighter and easier to fly. Even without on board autopilot. That KF airfoil looks promising at first, but you could use just a flat wing for better performance as it would be lighter and have less drag. The other thing, the foamboard, that with layers of cardboard on outside is a far better material than a floor insulation. It even allows to build a real profiled wing easily without all that rib structure. And the last, not least, the straight flying wing is not quite a best choice. Adding just a bit of sweep, like 20 degrees, allows you to shorten the nose and reduce the vertical planes. Both improve lift to drag ratio and reduce wing loading, making the plane easier to flight. One of my old planes. kzfaq.info/get/bejne/r6h7gtJlnJ7Dp6M.htmlsi=lURHB5K84DEJrYcl After several crashes it has lost some parts, like the nose fell off, the vertical stabilisers got much smaller, but it was still quite flyable. It was naturally stable, qutie light and slow flying, so no need for artificial stabilisation whatsoever.

2:31 ahh the old kf step

Hi would you like to share more information related to the hardware that we use to build this autonomous plane? Currently I only know about normal plane (Receiver-ESC-Battery-Motor)

That means I even could have flown a plane I have a heck of a time with them

Man, your ponytail, every girl will have to die for.

Really cool build but... Those MG 90 servos will pretty much guarentee a crash.

Try adding streaming video to the plane.

What if these had missile seeking abilities where as goal is simply to get in the way and fire compressed air projectiles at the warhead to disable it you could have 100,000 of these just sitting on rooftops in feilds wherever trickle charging on solar with a 2ndary battery to run the recording base station and linking them all into a camera network for live video mapping of area whislt simultaneously defending along with irorn curtain 177mm bbs at combined flightspeed and launch speed may be enough to peirce warheads and when in doubt just add an array of angles multiple projectiles like a shotgun and interchangeable weapons packages modular and easily repairable recyclable is key being more than 1 time use kamikaze although that strategy may also be used if deemed necessary to defend homeland

Why not cover the KFM with film, so you can remove the vortex and reduce drag

Did the pony tail help the piloting skills?

Горячий клей это удобно, но он слишком тяжёлый и добавляет много веса. Без скотча пенопластовый самолёт очень хрупкий, его обязательно надо оклеить скотчем и прогладить утюжком.

Now it's time to put a camera on it and fly fpv

Hey dude great video , are you maltese by any chance 🙂

I can crash anything. If my mom were still with us, she'd tell you stories.

I like the idea, but I have to say your choice of montage music is kicking it.

A bunch of Ukrainians are now out buying foam boards.....

Pozdro z polskim akcentem.

I forgot to ask you --- how long can this fly for approximately?

Great howmit kept missing the powerlines. I,pressive.

I can't crash that? Hold my rye.

Ещё от них очень хороший учебный самолёт с бесплатным чертежом kzfaq.info/get/bejne/qr2nltOC0rvZqmw.html его очень сложно разбить даже без автопилота. Вы просто отпускаете ручки и он снова летит. А если упал то не сломался. Это очень удобно когда вы только начинаете летать на моделях. Но он маленький и не может летать если ветер больше 5 м/с.

I was not able to finish because the background music

*sticks to balsa and tissue and a 1970s futaba on 36mhz* until i see a glider stay up all day by itself, i find this all rather pointless... the satisfaction, i find, is in flying a plane without cheating.

I can crash it I garruntee it

Wish you did a wing like flite test usually does. Dumb design.

You can't crash it mostly because you ain't flying it 😂😂

A uncrashable plane? Sounds boring. The fun to me is in the challenge.

I’ll crash it

I left a like on the video but why do you guys use the word "conquer" so much.. conquer a mountain, conquer the seas, conquer the sky.. its not possible to conquer these things... figure out how to fly would be more apropos...

fucking stress music!!!!!!!

information 5:38 the load-bearing main spar should be located at Thirty percent of chord. a spar made of CF is Heavier than one made of poplar or pine. 6:52 aileron configuration is WRONG. ailerons should be 'cut out of' trailing edge of the completed wing/airfoil. 6:57 E PROPELLERs should be used. 7:12 elevon control horn NOT correctly configured. 7:25 still wrong. sources of thrust should Not be located so far outboard.! that outboard-located mass is Reducing roll-axis stability. 16:04 'small field' yeah, right lol.

1:34 will they send some to Palestine too

Why did you use duct tape vs packaging tape?