Apart from that extraordinary model and the care and novelty of its' aerodynamics, the precision of the flying was totally outstanding. Rolling through an outside turn without an inch of height loss was just unreal. In fact the whole flight was unreal, except I just watched it, twice, so it can't be. Well done indeed. Impressive hardly does this justice.
Which aerodynamics? This thing has nothing special in aerodynamics. Just flat sheets as if build from paper. The special in this model as I see it is that even the fuselage is used as a flat wing....and the wings as fuselage. and a double propellor , one counter rotating, preventing that the rotation of the propellor influences the roll of this plan. It is flying on relativ high energy usage , even hovering. At all horizontal stretches I see the double propellor puling upwards... I do agree with near perfect control over this plane
@@reiniernn9071 Well let's see. Massive control surfaces, area & throw, huge relative side / fin area forward & behind the CoP, Winglets on top of the cockpit and below, minuscule aspect ratio. All in the interests of very slow forward flight and roll rate of course, but the results speak of an excellent aeroD balance. Sure the thing is hugely inefficient, an absolute drag master. But the objective here is manoeuvre accuracy and low speed. Contra Rotating props must be a given to negate the torque as there isn't enough forward speed or thrust required to kill that torque using primary controls anyway. Also having hig aspect ratio CR props is very effective control at low speeds / RPM. Given the manoeuvre profile you need a fully symmetrical section in all 3 axis so a flat plate and a slightly rounded leading edge and flattened trailing edge are optimal - particularly at this speed. The thrust line appears to be perfectly on the fore and aft axis which makes sense. As a small positive AoA is required regardless of attitude and the side area is almost certainly equal to wing area (+/-) that allows those smooth transitions in the rolling plane without excessive control inputs. Nicely balanced. Apart from that, nothing special at all. But what do I know?
Many years ago, in a previous life, I was a flight instructor. Taught aerobatics in several types of aircraft. Knowing what I know about aerodynamics and what goes on during the execution of such maneuvers it will take a couple days for my brain to process what I just witnessed. 😲
@@BenErikNess This plane is just a handkerchief of air with double crossed propeller :) - altough it has more drag than air. Is it made from aerogel maybe? :)
There's something so satisfying and calming about how gently the plane floats through the air. It seems to be almost defying gravity at times, flying at strange angles while maintaining a perfectly straight line followed by a smooth and flawless curve, making turns while simultaneously rolling... How incredible. I didn't even know this kind of competiton was a thing but I love it!
Where are the radio receiver, wiring and battery hidden? I think I can spot the very tiny servos but all the other parts of the plane looked flat. The pilot's skill level was superb.
OK this is absolutely stunning precision! But where is the power source and where are the servo motors? All the surfaces were thin as cardboard. Not only is his flying skill phenomenal but his engineering is also.
That's amazing, I can hardly believe my eyes. It just doesn't seem possible and seems to defy the laws of physics. I don't bandy the word genius about too freely but I gladly confer it on the designer of this incredible elastic band.
What have I just watched!?! Description below video gives nothing to explain. YT just popped this on my feed. How can it hover in vertical position? 😳 it’s close to emulating dragonfly aerobatics but with only two fixed wings. Mind blown 🤯
FINALLY, a "big" RC plane that does not have to go 100mph to have fun in the backyard!! Thank you for sharing!! :-) That was really fun and relaxing to watch!
I wondered why it has such a tall profile then realized it’s for lift when the wings are vertical. I’d love to see the specs and build details. It must weigh well under 100g. That’s very precise flying that’s a lot easier for us to follow than faster planes. Mad piloting skills.
Watching this thing go through it's aerobatics in slow motion is incredible. Quite different from outdoor models flying 80 mph doing a snap roll that ya missed because you took a sip of water.
While the pilot's precision skills are obvious, I found the aircraft's incredibly SLOW speed to be also impressive; something older guys like me could keep up with. The counter-rotating props to take P-factor torque out also obviously help. Are kits for planes like this available, & if so, where from?
There are TONS. This is a pretty niche sub-hobby. But right now is the golden age of r/c. Insanely powerful brushless motors, batteries that hold 100x the capacity at 1/100th the weight able to pump out 100's of amps, insanely advanced 9-axis sensors and ridiculously advanced and powerful flight computers.. The average DIY drone is more advanced, capable, powerful than cutting edge military missiles. It's insane. You can get quadcopters that fit in your hand you can fly around your house, with FPV!
I knew something like this was coming about 10 years ago when I watched a guy hover an RC plane. When I asked him how it was possible he said ultralight motors and batts...
Having flown both model plane aerobatics and full size plane competition aero, the challenge is orientation for models and thinking under extreme g and time pressure for full size. The prep is the same though, visualisation repeated till you know the routine very well
that was AWESOME!!!! I used to do this stuff 15 years ago and man has the technology improved things. Very nice flying skills. Would love to wring a plane like that out!!!! Guessing it's a scratch design? Counter props?? The benefit in the down lines are amazing!! Mind blown!!
This is super relaxing to watch. I'm curious what the plane specs are,will go look them up now. It looks like they might have less peak power than rubber band types 😳. Amazing
Counter rotating props, big and slow enough to be very quiet. Foam aircraft construction. Electric motors. Technology has enabled this level of flight magic.
So incredibly talented that pilot is. I have built and flown foam profile plane models like that with small 1 cell or 2 cell batteries. So I know how difficult it is to fly that good. It does take years of practice.
This is the "known" part of the contest. Every contestant is given the exact same routine to practice for months. You are judged by accuracy and pace. There is a "unknown" routine that is given the day of as well, you really need a "co-pilot" that guides you through the unknown flight as its difficult to remember every move in order. ..somewhat like a rally car co pilot. Hope this helps.
was thinking that ain't ever possible an elastic band could contain so much power with such a smooth energy release and that piloting is next level still air acrobatics. i just witnessed the impossible and the thought that went into it all, of every aspect the mind boggles. compleat genius design and planning, was holding my breath most of the last part before the controlled landing it was brilliant unbelievable perfect. was he using the body of the craft as an extra wing? and how much reserve was in the band at the end of the display is that added to the overall score points.
Looks as if it was held by wires: magical. Especially the off axis mixed turns are quite impressive. Personally I feel it's like human playing being machines at a time when machines play being human.
Wonderful stuff. So crisp and clean, and the control of speed is amazing; it's laughing at gravity. If there were a pilot on board, he'd be looking out of the cockpit and wondering, "Hmm... Did I leave the airbrakes on?"😁
Of all the things to pop up in the Algo~ what the heck? I'm today years old learning this exists. Wow! And nothing but silence! Guess I know what rabbit hole I'm in for ~ Outstanding performance! I've always loved indoors slow flight stuff but this is nutty lvl precision. Bravo!
@777BlueAngel, explain your acronyms! I figured out that "F3P" is the Radio Control Indoor Aerobatics competition class for model airplanes defined by FIA (Fédération Aéronautique Internationale, the world governing body for "air sports"). But I can't figure out what AF means; maybe it is a specific program of movements that the model airplanes must execute.
Just wondering why there were two small transparent triangular wings, one above and one below the fuselage. Possibly to get enough lift surface while preserving the roll response of stubby wings?
3D went from huck n chuk to slow, low and precise. Very impressive skills from GB as always... But how is this flight even possible? Helium filled fuselage... LoL! Must be those huge counter rotating props 🤔
I myself just posted above wondering how this is even possible. When I first read your remark about Helium I jumped out of my seat and yelled. YES!! Has to be!! Then I went back and looked a little closer and I don't think so. The fuselage looks to be just a flat profile doesn't it? Actually, all assemblies look to be flat? It truly has me baffled. I'll try not to lose any sleep over the video but, as stated in the above post, being a one time aerobatics instructor in several aircraft types this might haunt me a bit longer than the average bear. Now where were those old basic aerodynamics text books buried?????????? I remember seeing them just 20 or so years ago. I'll have to go back and re-read. I surely must have missed something.🤣
One source: F3P ist the FAI term for the class of Indoor Aerobatics. Currently there are two official subclasses: F3P-A, consisting of prelimary and final (F3P-AP & F3P-AF) and F3P-AM (AeroMusicals), now called F3P-AFM (Aerobatics Frestyle to Music). Another source: Category F3 - Radio Controlled Flight This is a flight during which the model aircraft is manoeuvred by control surface(s) in attitude, direction and altitude by the pilot on the ground using radio control. Class: F3A - AEROBATIC POWER MODEL AIRCRAFT F3B - THERMAL SOARING GLIDERS F3C - HELICOPTERS F3D - PYLON RACERS F3F - SLOPE SOARING GLIDERS F3G - MOTOR GLIDERS F3H - SOARING CROSS COUNTRY RACING GLIDERS F3I - AERO TOW SOARING GLIDERS F3J - THERMAL DURATION GLIDERS F3K - RADIO CONTROLLED HAND LAUNCHED GLIDERS F3L - Re-assigned to F7 as F7A F3M - LARGE MODEL AIRCRAFT F3P - INDOOR AEROBATICS Now we both know 😅
@@sashimifr at one point I'm sure I saw the prop stop as it came over the top. maybe they reverse one or both of the blades to provide resistance on the way down, else it would accelerate down quick, and it doesnt.
FINALLY.
no music, no stupid talking from some over hyping chadbro, just a nice way to appreciate the true serenity and talent that is going on here
This is kind of beautiful. One can really sense the viscosity of the air.
Just a bit of drum and bass? not too loud....
I agree.
You do know about the "Mute" button on all your devices.. right? You get to have silence on everything you watch should you wish.
@@davidpetersen1wow! And then you can't hear the engine or the throttle response being used by the pilot. You're really an idiot aren't you?
Apart from that extraordinary model and the care and novelty of its' aerodynamics, the precision of the flying was totally outstanding. Rolling through an outside turn without an inch of height loss was just unreal. In fact the whole flight was unreal, except I just watched it, twice, so it can't be. Well done indeed. Impressive hardly does this justice.
Forget AI, real life is more impressive
I've watched it three times on the trot, and am still gobsmacked at it!
Right !!
Which aerodynamics? This thing has nothing special in aerodynamics. Just flat sheets as if build from paper. The special in this model as I see it is that even the fuselage is used as a flat wing....and the wings as fuselage. and a double propellor , one counter rotating, preventing that the rotation of the propellor influences the roll of this plan. It is flying on relativ high energy usage , even hovering. At all horizontal stretches I see the double propellor puling upwards...
I do agree with near perfect control over this plane
@@reiniernn9071 Well let's see. Massive control surfaces, area & throw, huge relative side / fin area forward & behind the CoP, Winglets on top of the cockpit and below, minuscule aspect ratio. All in the interests of very slow forward flight and roll rate of course, but the results speak of an excellent aeroD balance. Sure the thing is hugely inefficient, an absolute drag master. But the objective here is manoeuvre accuracy and low speed. Contra Rotating props must be a given to negate the torque as there isn't enough forward speed or thrust required to kill that torque using primary controls anyway. Also having hig aspect ratio CR props is very effective control at low speeds / RPM.
Given the manoeuvre profile you need a fully symmetrical section in all 3 axis so a flat plate and a slightly rounded leading edge and flattened trailing edge are optimal - particularly at this speed.
The thrust line appears to be perfectly on the fore and aft axis which makes sense. As a small positive AoA is required regardless of attitude and the side area is almost certainly equal to wing area (+/-) that allows those smooth transitions in the rolling plane without excessive control inputs. Nicely balanced.
Apart from that, nothing special at all.
But what do I know?
Many years ago, in a previous life, I was a flight instructor. Taught aerobatics in several types of aircraft. Knowing what I know about aerodynamics and what goes on during the execution of such maneuvers it will take a couple days for my brain to process what I just witnessed. 😲
While you are thinking - take weight into the consideration - this plane is probably lighter than 60 grams...
your brain was so tainted from what you thought you know to what is happening lol
Let’s think… To carry 170 pound person, 12 pounds of fuel, 60 pound engine…. i’d say you’d have to scale that design up 100 fold? Who knows?
@@BenErikNess This plane is just a handkerchief of air with double crossed propeller :) - altough it has more drag than air. Is it made from aerogel maybe? :)
Thats just because youre a pilot mate
There's something so satisfying and calming about how gently the plane floats through the air. It seems to be almost defying gravity at times, flying at strange angles while maintaining a perfectly straight line followed by a smooth and flawless curve, making turns while simultaneously rolling... How incredible. I didn't even know this kind of competiton was a thing but I love it!
It was defying gravity the entire time it was aloft! 😊
The slow speed and maneuverability are incredibly impressive
❤❤❤❤❤❤❤❤❤❤❤❤❤❤ in still air
I wish my dad was still around to see all this new stuff. We use to fly rubber powered indoors all the time. Great times.
The way it flies looks so elegant. It's like an airborne jellyfish or an angel.
Really amazing! I was holding my breath through most of the performance, because I didn't want to cause any turbulence! LOL 👍
astounded me2
That person that coughed three times added enough 😅😂😂😂
Lively crowd 😂
Never stops being amazing, the hobbies that exist around the world !
Agree. I enjoy them all.
Hats off to the person that filmed this.
Where are the radio receiver, wiring and battery hidden? I think I can spot the very tiny servos but all the other parts of the plane looked flat. The pilot's skill level was superb.
I’m sure it’s all varnished wire and solder directly to the circuit boards ,
Like how he picks her up at the end of the flight! Like a rare postage stamp
That's all I could think about. At first I thought it must be rubber-band powered, but I ruled that out pretty quickly.
Where is the gasoline power engine noise?
@@Agent77Xwho said it uses gas...?
OK this is absolutely stunning precision! But where is the power source and where are the servo motors? All the surfaces were thin as cardboard. Not only is his flying skill phenomenal but his engineering is also.
The completely still volume of air, along with the counter-rotating props, must make that lil bird a dream to fly. So precise!
Never saw such a graceful exebition of flight....BRAVO!
Phenomenal piloting skills right there 👍👍👍👍👍
I think this is the best thing I've seen so far in this wonderful hobby.
Absolutely amazing!
So glad I was pointed here by some algorithm. 😊
When its done so well its easy to underestimate just how exceptionally difficult it is to perform so perfectly
Unbelievable, never heard of this, incredible.
That's amazing, I did not know that was possible with any flying device.
Sehr beeindruckend, absolute Präzision Wünsche dir noch viele Weltmeistertitel
That's amazing, I can hardly believe my eyes. It just doesn't seem possible and seems to defy the laws of physics. I don't bandy the word genius about too freely but I gladly confer it on the designer of this incredible elastic band.
Idk about anyone else but I actually prefer to watch this than the crazy fast acrobatic planes and helis
Astonishing skill. That was completely crazy.
First time seeing this class of airplane. Like others have said, both impressive and beautiful. Truly like watching an aquarium. 👏
Amazing control, grace and precision, reminds me somewhat of a coral fish swimming around.
What the actual F is happening here? I’m mesmerised ❤
skillset on display
@@jamesweir2943 legend says it weights minus 2,4 grams.
@@albertoalmeida3424you had me at minus.😊
Exceptional pilot and outstanding elastic band 👌🏼
As I started watching I thought ‘what the hell is this? It’s absolutely….. …..mesmerising
Most amazing flying I have ever seen, bravo, great airplane and piloting.
That part where he pulled 1.1 Gs was crazy.
Defying The Laws Of Aerodynamics .
What have I just watched!?! Description below video gives nothing to explain. YT just popped this on my feed. How can it hover in vertical position? 😳 it’s close to emulating dragonfly aerobatics but with only two fixed wings. Mind blown 🤯
FINALLY, a "big" RC plane that does not have to go 100mph to have fun in the backyard!! Thank you for sharing!! :-) That was really fun and relaxing to watch!
Incredible skills. Incredible airplane and propeller layout.
One of the best pilots in the world.
Wow! This almost seems to defi the law's of physics with precision control.
The flow flying plane is awesome but the pilot is hell much better, he took everything into consideration :)
Now that is absolutely amazing, so serene!
That rubber band just keeps on going. Bravo
Incredible machine and piloting skills.
Chap must see the world as a 3D grid...unbelievable skill.
That is simply phenomenal.
Looks as though it’s on rails. Incredible.
I wondered why it has such a tall profile then realized it’s for lift when the wings are vertical. I’d love to see the specs and build details. It must weigh well under 100g. That’s very precise flying that’s a lot easier for us to follow than faster planes. Mad piloting skills.
I'm still picking my jaw up from the floor... Amazing flying skills.
I dont know what I'm seeing. Is that plane on a guide wire or something? How is the plane moving so slowly and able to make such articulate maneuvers?
Watching this thing go through it's aerobatics in slow motion is incredible. Quite different from outdoor models flying 80 mph doing a snap roll that ya missed because you took a sip of water.
While the pilot's precision skills are obvious, I found the aircraft's incredibly SLOW speed to be also impressive; something older guys like me could keep up with. The counter-rotating props to take P-factor torque out also obviously help.
Are kits for planes like this available, & if so, where from?
There are TONS. This is a pretty niche sub-hobby. But right now is the golden age of r/c. Insanely powerful brushless motors, batteries that hold 100x the capacity at 1/100th the weight able to pump out 100's of amps, insanely advanced 9-axis sensors and ridiculously advanced and powerful flight computers.. The average DIY drone is more advanced, capable, powerful than cutting edge military missiles. It's insane. You can get quadcopters that fit in your hand you can fly around your house, with FPV!
I knew something like this was coming about 10 years ago when I watched a guy hover an RC plane. When I asked him how it was possible he said ultralight motors and batts...
This is the first time that I have seen anything like this in my life, it is totally different and awesome. The plane and the pilot, something else.
Having flown both model plane aerobatics and full size plane competition aero, the challenge is orientation for models and thinking under extreme g and time pressure for full size. The prep is the same though, visualisation repeated till you know the routine very well
that was AWESOME!!!! I used to do this stuff 15 years ago and man has the technology improved things. Very nice flying skills. Would love to wring a plane like that out!!!! Guessing it's a scratch design? Counter props?? The benefit in the down lines are amazing!! Mind blown!!
This is super relaxing to watch.
I'm curious what the plane specs are,will go look them up now. It looks like they might have less peak power than rubber band types 😳. Amazing
Is it possible to scale this design up? I've never seen such a stable aircraft.
Counter rotating props, big and slow enough to be very quiet. Foam aircraft construction. Electric motors. Technology has enabled this level of flight magic.
So incredibly talented that pilot is. I have built and flown foam profile plane models like that with small 1 cell or 2 cell batteries. So I know how difficult it is to fly that good. It does take years of practice.
Good idea about technology for plane in the future. How it get the power and control to up, down, break, turn, stay.
This is the first time seeing this, what a great performance! Perhaps someone could explain the ‘overall’ rules of the contest?
This is the "known" part of the contest.
Every contestant is given the exact same routine to practice for months. You are judged by accuracy and pace.
There is a "unknown" routine that is given the day of as well, you really need a "co-pilot" that guides you through the unknown flight as its difficult to remember every move in order. ..somewhat like a rally car co pilot.
Hope this helps.
was thinking that ain't ever possible an elastic band could contain so much power
with such a smooth energy release and that piloting is next level still air acrobatics.
i just witnessed the impossible and the thought that went into it all, of every aspect the mind boggles.
compleat genius design and planning, was holding my breath most of the last part
before the controlled landing it was brilliant unbelievable perfect.
was he using the body of the craft as an extra wing?
and how much reserve was in the band at the end of the display
is that added to the overall score points.
@@oldbladderhorn this plane has an electric motor powered by a LiPo battery...
Wow there’s a place in high energy music whilst the planes flying field atmosphere a bit Still superb work
Mesmerizing, indeed! And the Pilot’s skill? Otherworldly. WOW! Would have been interesting to have seen his control inputs in a split screen.
Umbeliveable seems someone is hand carring the plane. outstanding job! Is there a rail? Congratulations
Green screen and a guy dressed in green body suit walking with the airplane in his hand lol :) (that is what it looks, like, totally unreal).
Looks as if it was held by wires: magical. Especially the off axis mixed turns are quite impressive. Personally I feel it's like human playing being machines at a time when machines play being human.
Wonderful stuff. So crisp and clean, and the control of speed is amazing; it's laughing at gravity. If there were a pilot on board, he'd be looking out of the cockpit and wondering, "Hmm... Did I leave the airbrakes on?"😁
What the actual heck? Where did gravity go? How did it climb and descend vertically without a perceptible change in speed???
@@chrisburn7178 The slow counter-rotating props work as airbrake.
Incredible.
I’m in love with this plane! I want one!
Of all the things to pop up in the Algo~ what the heck? I'm today years old learning this exists. Wow! And nothing but silence!
Guess I know what rabbit hole I'm in for ~ Outstanding performance! I've always loved indoors slow flight stuff but this is nutty lvl precision. Bravo!
I love this
I guess I'll add my "amazing " comment to the 100 others before me. And that really is an understatement !
1:24 the best part of this video.
Ohh you...
@777BlueAngel, explain your acronyms! I figured out that "F3P" is the Radio Control Indoor Aerobatics competition class for model airplanes defined by FIA (Fédération Aéronautique Internationale, the
world governing body for "air sports"). But I can't figure out what AF means; maybe it is a specific program of movements that the model airplanes must execute.
It's so quiet! It looks like its swimming and not flying! Crazy! I wonder how much it weighs?
That is because it is so light that it is more like swimming then flying...
The most fascinating thing i have seen in 40 years.
The yellow bumble bee, I was on the edge of my seat the stalls left me breathless.
That was either the best piloting I have ever seen or some good electronics.
All maneuvers are manually controlled by the pilot. No electronic help here.
@@777BlueAngelso no gyro to assist with the hover?
That’s the old school way! Cool!
Incredible!👍
😮 Wow
Just wondering why there were two small transparent triangular wings, one above and one below the fuselage. Possibly to get enough lift surface while preserving the roll response of stubby wings?
No idea how this ended up in my feed. But it was pretty spectacular!
Glad I stumbled across this. Pretty cool.
So slow, graceful and controlled, it move more like a fish in water than a craft in flight.
All in complete silence, wonderful.
When something looks easy to do it's not. Very good.
Amazing! ❤
An amazing display but I fail to see where the power source and command module are stored.
Okay So, Is It A Drone, Model, Toy, Free Flight, Autonomous Or What? What's It Made Out Of? Thank You. (Comment #191)
It is an RC model aircaft made from a carbon-fibre frame, covered with Mylar film.
Ich frage mich wo sich die ganze Technik in diesem filigranen Flugzeug „versteckt“
Beautiful - so graceful.
Where do they practice? I ask as they probably need a big indoor area with no drafts.
I guess they practice in big Indoor areas Like this...
Where can I get this type of plane, I haven't seen anything like this in any RC hobby store.
That was totally amazing and absolutely beautiful to watch❤❤
That’s amazing. I only knew of F3A in the 80’s but this really blows me off my feet
Me too!
3D went from huck n chuk to slow, low and precise. Very impressive skills from GB as always... But how is this flight even possible? Helium filled fuselage... LoL! Must be those huge counter rotating props 🤔
I myself just posted above wondering how this is even possible. When I first read your remark about Helium I jumped out of my seat and yelled. YES!! Has to be!! Then I went back and looked a little closer and I don't think so. The fuselage looks to be just a flat profile doesn't it? Actually, all assemblies look to be flat? It truly has me baffled.
I'll try not to lose any sleep over the video but, as stated in the above post, being a one time aerobatics instructor in several aircraft types this might haunt me a bit longer than the average bear.
Now where were those old basic aerodynamics text books buried?????????? I remember seeing them just 20 or so years ago. I'll have to go back and re-read. I surely must have missed something.🤣
@cem3050 extremely lightweight and a specialized high lift low speed airfoil.... But I still think it's the props lol!
@@cem3050 I’m sending this to a pilot who flies big transatlantics, hoping he’ll explain to me how the heck this is possible!
I've never seen anything like that! That' is insane!
Needs to add variable pitch to hover upside down and fly backwards. That would be nice to see.
These days it’s hard to believe what your eyes are seeing , this could so easily be CGI but I get a feeling it’s real 😊
For those of us not familiar with this, what does f3p & af stand for?
One source:
F3P ist the FAI term for the class of Indoor Aerobatics. Currently there are two official subclasses: F3P-A, consisting of prelimary and final (F3P-AP & F3P-AF) and F3P-AM (AeroMusicals), now called F3P-AFM (Aerobatics Frestyle to Music).
Another source:
Category F3 - Radio Controlled Flight
This is a flight during which the model aircraft is manoeuvred by control surface(s) in attitude, direction
and altitude by the pilot on the ground using radio control.
Class:
F3A - AEROBATIC POWER MODEL AIRCRAFT
F3B - THERMAL SOARING GLIDERS
F3C - HELICOPTERS
F3D - PYLON RACERS
F3F - SLOPE SOARING GLIDERS
F3G - MOTOR GLIDERS
F3H - SOARING CROSS COUNTRY RACING GLIDERS
F3I - AERO TOW SOARING GLIDERS
F3J - THERMAL DURATION GLIDERS
F3K - RADIO CONTROLLED HAND LAUNCHED GLIDERS
F3L - Re-assigned to F7 as F7A
F3M - LARGE MODEL AIRCRAFT
F3P - INDOOR AEROBATICS
Now we both know 😅
very impressive
Awesome, and in 3D of space and one of time.
where is the battery? motors, controls? that impressed me more than the flying. its like a magic powered paper airplane....
how the flippin' heck does it go the same speed vertically down as vertically up? and why is it silent?
huge propeller, double propeller, very low RPM, electric motor(s) => pretty much silent.
@@sashimifr at one point I'm sure I saw the prop stop as it came over the top. maybe they reverse one or both of the blades to provide resistance on the way down, else it would accelerate down quick, and it doesnt.
He can change the angle of the propeller like an helicopter, that's the reason he can control the speed when the aircraft goes down
@@carlossss1212 These planes do not have a VPP system, just really big slow rotating prop that produce a lot of braking force on downlines