You should look at propeller/gun synchronization system Before they invented that pilots literally shot their own propellers
@RJstillalive
Жыл бұрын
"You got the 56 toothed gear installed, right?" "Wait, I thought you said 58!" "uhoh" *hears crash in the distance
@brianb-p6586
Жыл бұрын
Ha ha... but of course a gear with the wrong number of teeth wouldn't even fit in the transmission; it's not an error that could happen in reality.
@professorlegasov692
Жыл бұрын
@@brianb-p6586 take care when u say "of course", Brian.
@brianb-p6586
Жыл бұрын
@@professorlegasov692 you think a gear with a different number of teeth would fit? Maybe you haven't seen gears before...
@asphyxia9927
Жыл бұрын
The mechanism in free space would work with any 2 gears with same number of teeth however i doubt it would fly cuz the equations would be off ofc
@Ballacha
Жыл бұрын
fun fact, if you have a 50-tooth gear with a 3-blade rotor meshing with a 75-tooth gear with a 2-blade rotor, it's also a completely safe setup but will look 10 times more scary.
@nackscrack4593
Жыл бұрын
Not sure why this was recommended, but cool video!
@TheMLightning
Жыл бұрын
Fantastic animation. I animated some pilots training for Kaman earlier this year.
@bzig4929
Жыл бұрын
Thanks! I'm doing this for fun, so that's a nice compliment to get from a professional. Kaman is awesome... one-stop shopping for helicopters, guitars and guide dogs. After I made this video, I learned that Anton Flettner, who first invented intermeshing rotors, actually worked for Kaman after he came to the US post WW II. Interesting history.
@Ulfur8574
Жыл бұрын
Now I know how the twinblade and hammerhead works.
@brianb-p6586
Жыл бұрын
"Twinblade" - a fictional aircraft front the video game Command & Conquer, also has a tail rotor that a real helicopter with intermeshed or coaxial main rotors would not have. The Hammerhead wouldn't work very well in the real world because the two rotors are too far apart to use differential collective control for yaw (it would cause unwanted roll as a side effect), and yet not far enough apart for differential pitch action to provide effective yaw control.
@Ulfur8574
Жыл бұрын
@@brianb-p6586 I don't really care much about how much it would be feasible in real life. I was making a call back to an amazing game series. And all you have to do is look at pretty much anything from the C&C series to know that the majority of the equipment don't really work in the real world. Take for example the Orcas, Sonic emitters, hover MLRS, StrikerVX
@brianb-p6586
Жыл бұрын
@@Ulfur8574 I understand that fictional craft don't need to be viable in reality, but you commented that this illustration shows how those fictional aircraft could work. Fictional machines can be good examples to discuss how real machines work.
@sarahwitzig4172
Жыл бұрын
@@brianb-p6586 agreed! ^
@NekzLvL
Жыл бұрын
"Twinblade inspection complete"
@dancoulson6579
Жыл бұрын
Imagine if the gear ratios were ever so slightly off 1:1 meaning that after 30 minutes of operation they would start to collide with each other...
@pyrotechnicalbirdman5356
Жыл бұрын
They are, the gears are different sizes in circumference by tiny amounts, probably microscopic tho
@RobertoLee09
Жыл бұрын
Gear teeth is prime number to prevent what you saying the worse situation.
@jamato2004
Жыл бұрын
Nightmare creating.... as if you've a car and say when you drive 120 the gear goes in the reverse.....
@somedud1140
Жыл бұрын
@@pyrotechnicalbirdman5356 But that's the beauty of gears, they turn continuous circumferences to discrete teeth numbers. Even if circumferences are off by millimeters, teeth will prevent timing to wander off too far.
@brianb-p6586
Жыл бұрын
A hilarious thought, but at 500 RPM (at a rough guess), even one tooth different in gear tooth count would lead to rotor clash in seconds.
@panda4247
Жыл бұрын
can you give an example of a real helicopter using this setup? I would love to see it in action (especially the starting sequence; when the rotors are still bent downwards so their interference planes are a bit different)
@dave98765
Жыл бұрын
Kaman K-Max. They're a heavy hauler. There are a few good start up vids about.
@panda4247
Жыл бұрын
@@dave98765 thank you!
@johndow6923
Жыл бұрын
en.wikipedia.org/wiki/Flettner_Fl_282
@pak3ton
Жыл бұрын
@@dave98765 i never saw a helicpter like that thanks for the name
@brianb-p6586
Жыл бұрын
The HH-43 Huskie (and its variants) probably account for most of the intermeshing rotor helicopters ever built. en.wikipedia.org/wiki/Intermeshing_rotors
@babygorilla4233
Жыл бұрын
In WWI or 2 they did this sort of thing with the guns and propellers. The gun was tied to the propeller transmission and timed to fire through it. Having the gun in line with the pilot made aiming easier.
@botyaltotertutal468
Жыл бұрын
Yes, this is called a synchronization gear developed by August Euler in 1913
@brianb-p6586
Жыл бұрын
In a more direct example, tandem-rotor helicopters (such as the CH-47 Chinook) also synchronize the front and rear rotors so they can overlap without interference.
@kornami8678
Жыл бұрын
I understood that, but I don't understand how that type of helicopter turns left or right, since there is no tail rotor. Can the lift on each rotor be independently controlled? Does changing the lift on the blades on one set cause the helicopter to rotate one way and doing the opposite on the other rotor cause it to rotate the other way?
@bzig4929
Жыл бұрын
Yaw can be controlled by a combination of differential collective pitch, this applies higher torque to one of the rotor masts, and differential longitudinal cyclic tilt of the rotor disks... Fwd tilt on one disk and aft tilt on the other. These two control actions allow yaw control.
@fendtclaas8689
Жыл бұрын
Does that look like a fully completed helicopter to you?
@mitchellstrobbe7779
Жыл бұрын
Or another way of looking at it is if you have two offset axis you can created torque it two directions. A sort of coordinate system translation effect
@alastairward2774
Жыл бұрын
@@fendtclaas8689 top notch crappy reply.
@cabanford
Жыл бұрын
@@alastairward2774 The joys of a Grumpy Internet 😉
@jareknowak8712
Жыл бұрын
What is the total gering ratio bt the first gear and propeller axles?
@deciluspeterson4518
Жыл бұрын
C'est un bon calcule, une tête bien faite en travailler pour aboutir a un bon calcule. Félicitation mon reuf
@whybotherwithusernames4880
Жыл бұрын
ooohhhhh my god this is amazing
@lwinminmyat3256
Жыл бұрын
အားလုံးကောင်းပါတယ်
@davidmaly5464
Жыл бұрын
There was an old Cobra (from GI Joe) toy that had these... Looked cool
@PartsandStuff
Жыл бұрын
This gives me high levels of anxiety
@MikeAIright
Жыл бұрын
same
@joestreet7036
Жыл бұрын
I watched a k-max do logging..it was strange not swing tail rotor..also noticed lower rotor speed which I think would mean longer life.sounded like bigger engine lower rpm which I feel would mean longer blade life and Ujoint life as well as longer engine life..the two single blade supply a lot of lift..anothe odd feature I thought was it only comes in one seat models.this means instruction is done on ground.also has main gauges so when you lean out and look down to see what you are working over you can see main gauges like rotor speed this way you don't have to turn head and focus on dash to see that info you can view while looking down out either side..body is narrow and side windows. Bubble out to give room to lean out and look down..the hook up point moves on rollers so weight is always at bottom of aircraft even if you are banking for turn..really neat design but isn't made with more then one seat..as much as it lifts it should gave two seats to carry someone at some point..
@YardworkWithJohn
Жыл бұрын
Is there a loss of efficiency because half of each rotor's downwash is the air that the other rotor is pushing against?
@sroku7673
Жыл бұрын
It seems like there's always a loss of efficiency when adding more mechanical parts to an otherwise-simple design. I'm no fluid dynamics professor, but splitting the airflow and rotor forces into multiple non-parallel/perpendicular components which then interact with the other's oblique airflow and rotor forces tends to introduce inefficiency in the form of interference and instability.
@brianb-p6586
Жыл бұрын
It's not a big problem. Stacked or overlapping counter-rotating rotors or propellers are not the most common configuration, but they've been successfully used many times.
@nvcnc
Жыл бұрын
I'm not sure if it will apply here but having two blades work in opposite directions can help increase their efficiency. However, the main advantage to this system as far as efficiency is concerned is with regards to how basically all of the power is used for lift rather than having a tail rotor which does not contribute to lift.
@zaugitude
Жыл бұрын
It is a different design but the Ingenuity helicopter uses two rotors spinning in opposite directions, with one directly over the other.
@gkindustrialmachine1
Жыл бұрын
@@sroku7673 isn't that what he just said?
@iron6988
Жыл бұрын
Ngl was kinda hoping for world's most intensive swordfight ever
@EpicEnej
Жыл бұрын
I expected free bird in the background
@justicewing
Жыл бұрын
i always wonder how The Bat in TDKR works. Now I know. Thanks.
@lol-et1fz
Жыл бұрын
А зачем так усложнять ?)))
@justicewing
Жыл бұрын
this makes me more anxious than looking at people knifing between fingers...
@mikebyrd8278
Жыл бұрын
I'd like to see a gyrocopter with blades like that
@phillipthethird42
Жыл бұрын
Ya know, there is a hell of alot riding on that. Lives.
@lucaswilkins9217
Жыл бұрын
I would be concerned that fast manoeuvring would cause them to flex into each other.
@joshdenton611
Жыл бұрын
nice. will a double tri-blade work? or is there enough room to avoid collision between lead and lag during intermeshing of the rotors? It would be a fun experiment nonetheless..........if for anything, the lift capacity.
@bzig4929
Жыл бұрын
The first intermesher helicopter was a three-blade design. The Kellet XR-10. The XR-10 flew, and there are videos of it flying on youtube, but it was never placed into operational service. I also did an animation of 3-blade intermeshers and that's on my channel.
@shahjanhankhan1512
Жыл бұрын
Nice idea
@jayjoonprod
Жыл бұрын
I love how this seems so impossible
@fueledbymusic3
Жыл бұрын
The blade will have the tendency to wobble. Like in mast bumping
@raywhitehead730
Жыл бұрын
Most helicopters that use this configuration have been made by the US Kaman Corporation. It offer s great lift and great dependability, maintenance wise. However, they are slow in forward flight.
@drwheycooler8423
8 ай бұрын
They are also really, really quiet. They fly over our office all the time and if you are not outside, you do not even know.
@johnarnold893
5 ай бұрын
@@drwheycooler8423 Sounded pretty loud to me when one was scooping water out of the river and coming right over my house to drop his load.
@MoonOwlHub
Жыл бұрын
High Risk , High Reward~
@CrisDFF30917
Жыл бұрын
If they rotate in the same direction, will they crash?
@user-jx7by5nz7d
Жыл бұрын
cool idea to compensate for the negative effect of the convergence of the blades with a coaxial arrangement
@friedhelmvenjacob4914
Жыл бұрын
Flettner - Doppelrotor
@FutureAIDev2015
Жыл бұрын
With a setup like this I imagine the helicopter doesn't need a tail rotor.
@bzig4929
Жыл бұрын
absolutely... some intermesher helicopters you can see in youtube are the H-43 Huskie and the K-1200 Kmax, both made by Kaman. Also the Flettner 282 or the Kellet XR-10. These aircraft don't have tail rotors. They control yaw in a hover by applying more, or less, torque to the individual masts. This torque imbalance causes a yawing moment.
@DougieBarclay
Жыл бұрын
This would be great if it had some sort of mechanical checksum incorporated
@xavierrodriguez2463
Жыл бұрын
Unless the person putting it together is unbelievably stupid there's no way the gears are gonna slip and cause rotor crash
@DougieBarclay
Жыл бұрын
@@xavierrodriguez2463 teeth do break.
@xavierrodriguez2463
Жыл бұрын
@@DougieBarclay really not that big of an issue, it's really easy to just overbuild the gears. The blades will prolly snap far before there's enough force going through the rotors to break any gear teeth.
@MikeAIright
Жыл бұрын
does this create super lift?
@antahsi
Жыл бұрын
Hay quá giờ mới biết🎉
@dordagiovex9989
Жыл бұрын
k-max rotor. nice! On the real helicopter control is achieved through small flaps about in the middle of the rotor blades. How are that flaps controlled? pushrods through the blades? Novthey would fail ti fatigue very soon
@brianb-p6586
Жыл бұрын
Yes, the servo tabs (flaps) are controlled by pushrods inside the hollow blades, and the those rods are controlled by a relatively conventional swashplate mechanism mounted below each mast and connected through the hollow mast.
@dordagiovex9989
Жыл бұрын
ah just relized that the pitch of the flaps does not need to be controlled during each revolution.. so very simple mechanically
@brianb-p6586
Жыл бұрын
@@dordagiovex9989 the pitch of the servo flaps does need to change cyclically - those flaps are controlled by swashplate systems, just like the blade pitch in any helicopter.
@user-kd6yd7ql2k
Жыл бұрын
good~~~~~~~~~~~~~~~~~~~~~~~~~~~
@huutaichannel4950
Жыл бұрын
Quá tuyệt vời một phát minh vĩ đại quá tuyệt hay
@shotya9403
Жыл бұрын
but what about the rotors flexibility? they would wobble around no? wouldnt that be a problem? how did they handle that issue?
@jebise1126
Жыл бұрын
they need to be stiff yes...
@nimuil
Жыл бұрын
they will hit each other if got strong wind or flew in high dynamic up and down maneuvers.
@user-bl3ig5fs1i
Жыл бұрын
Сумрачный Тевтонский гений
@oooooooooooooooooo
Жыл бұрын
Does it fly?
@vikrantrm4237
Жыл бұрын
what if for 1sec it gets mis-match...does chopper will go up!
@siddiquesadhmansulov4564
Жыл бұрын
Awesome
@allahsservent3580
Жыл бұрын
Man went to UK to study, now he's addicted to KZitem lol,
@nibinbaby2471
Жыл бұрын
Which software makes this video ? Is it possible to test through the soft ?
@bzig4929
Жыл бұрын
I modeled this in Fusion 360... Fusion has some analysis tools, but I didn't use them. The purpose of the video was just to show them basic working of intermesher rotor system. I rendered the animation with Blender using an Eevee render
@rollmeister
Жыл бұрын
I bet that would be reliable
@LaxmikantKachhap
Жыл бұрын
Good equation for death under normal circumstances.
@your_local_mp3.541
Жыл бұрын
Anxiety: The movie.
@CPP-Serpent
Жыл бұрын
Thanks, if I ever see this in any helicopter, I would prefer to walk.
@jebise1126
Жыл бұрын
you cant afford it anyway so its really no a problem for you
@mortophobegaming6454
2 ай бұрын
lekker bezig, Bzig. somehow i think the downwind generated by the top rotor nullifies the usefulness of the bottom rotor
@bzig4929
2 ай бұрын
true, but it's still useful and provides heavy lift capability
@captainemeritus5927
Жыл бұрын
Works with the turbo Encabulator.
@captainemeritus5927
Жыл бұрын
@Dave Bieleveld 😂
@captainemeritus5927
Жыл бұрын
@Dave Bieleveld not to belabor the point, but, The original machine had a base plate of pre-famulated amulite surmounted by a malleable logarithmic casing in such a way that the two spurving bearings were in a direct line with the panametric fan. The latter consisted simply of six hydrocoptic marzlevanes, so fitted to the ambifacient lunar waneshaft that side fumbling was effectively prevented
@Iwalkaroundtheworld
Жыл бұрын
Гениально
@tuphdc8779
Жыл бұрын
what is airflow?
@KaushikBala333
Жыл бұрын
Why not put it on same axis
@whatthedeuce
9 ай бұрын
I am a layman. I just saw the kmax video. So the left and right movement is done just like air planes? These rotors are only for lift and descent? Just trying to understand. 😅
@bzig4929
9 ай бұрын
Left and right is done by adding more collective blade pitch to one rotor and less to the other. This creates more lift on the side of more collective pitch and causes the aircraft to roll and turn.
@nick_teb102
Жыл бұрын
"hey he's getting awa-"
@ALBATROSS00
Жыл бұрын
can you explain how ch47 overcome anti torque to the aircraft body
@bzig4929
Жыл бұрын
On the CH-47 the forward and aft rotors turn in opposite directions so the torque effect is cancelled. There are at least three types of helicopters that do not use an anti-torque tail-rotor. These are tandems (CH-46, CH-47), Intermeshers (K-1200, H-43) and coaxials (KA-32, KA-52 and early Hiller designs)
@Fluterra
Жыл бұрын
Cool! But where’s the swashplate?
@brianb-p6586
Жыл бұрын
Each rotor has a typical swashplate assembly under the rotor hub; they're just not shown. They might be hard to spot on the actual helicopter, because the only common intermeshing rotor designs are from Kaman, and they tend to use a swashplate mounted below the mast with control rods coming up inside the hollow mast; they also tend to use servo tabs on the blades run by control links hidden inside the blades instead of the usual visible links operating levers to change the blade pitch.
@jeffreyyoung8727
8 ай бұрын
Imagine the possibilities, open your mind
@NekzLvL
Жыл бұрын
"Twinblade inspection complete"
@marcotrolo3134
Жыл бұрын
HELI-COPTER HELI-COPTER
@Baribrotzer
3 ай бұрын
Is that the actual gear train used in a Kaman?
@bzig4929
3 ай бұрын
No. I was just trying to show how it's possible for the blades to intermesh. Those gears would not be practical; a 1:1 ratio would lead to premature wear.
@nikhilbandaru
6 ай бұрын
What if the gears expand due to heat, especially the one directly connected to the source? (I'm no expert, just a curious kid)
@bzig4929
5 ай бұрын
I'm not a gear-ologist, but gears have backlash (play, slop, whatever you want to call it) I imagine they account for thermal expansion when designing in the backlash. As a side note, the CAD software I used to make this has a gear generator that lets me enter a custom backlash value. Stay curious!
@sulus14
Жыл бұрын
Амплитуда колебания ни кто не отменял
@lri2x97
Жыл бұрын
Hi kids, do you like anxiety? Wanna see me stick two blades spinning against each other just for propriety?
@alitikaaf
Жыл бұрын
I would choose to install 4 blades
@djocharablaikan8601
Жыл бұрын
What are the advantages of this design compared to twin vertical rotors?
@bzig4929
Жыл бұрын
An advantage of an intermesher over a tandem rotor design is that overall size of the aircraft is smaller. Consider the size of a k-max (intermesher) with that of a ch-46 (tandem) and the k-max is smaller with about the same lift capacity. Tandems also have some issues with the tips of the blades drooping into the fuselage during low-rpm (so only an issue during start up and shut down) particularly in high winds. There's probably no single answer as to why customers pick one design over another. Cost and how much weight it lifts are big considerations.
@brianb-p6586
Жыл бұрын
@@bzig4929 "twin vertical rotors" was probably intended to mean coaxial, rather than tandem.
@jebise1126
Жыл бұрын
simplicity. oh wait do you mean coaxial or something else? if coaxial its simplicity if something else read other answers.
@djocharablaikan8601
6 ай бұрын
@@brianb-p6586 yes thats what i meant, sorry, not an engineer, just curious. It seems to me that something like Kamov 52 would outperform this in every way, thats why i asked.
@brianb-p6586
6 ай бұрын
@@djocharablaikan8601 the swashplate arrangement for an intermeshing rotor system is just two normal swashplates, but a coaxial needs to stack the swashplates for each rotor and add a system of rotating linkages between them - that's the advantage in lower complexity for this intermeshing design.
@Danleyson1
Жыл бұрын
If it skips a tooth thats bad news. Two intermediate gears would allow the main gears to rotate in the same direction. From there a redundant mechanism such as a belt could be attached in the event of tooth damage
@Awesomelord101
Жыл бұрын
you don't want that its already stable counter rotating. won't yaw unctonrtrollably. and a belt is a horrible idea to put in addition to gears. cars with timing belts they break all the time while trucks with TIMING GEARS never skip a tooth. for millions of miles thousands of hours. Belts can slip and belts can jump teeth if its a toothed pully. lets put it this way the only time gears will skip a tooth is if the rest of the vehicle is a big hole in the ground.
@Danleyson1
Жыл бұрын
@@Awesomelord101 valid points. I was thinking more in terms of a brittle tooth dislocation or severe plastic deformation but that doesnt sound like it would be a concern here.
@brianb-p6586
Жыл бұрын
Any failure of the coordinating drive gears would be critical. Fortunately, although every helicopter has at least one similarly critical gear, failures are rare.
@TCBYEAHCUZ
Жыл бұрын
If it skips a tooth then that's a catastrophic failure either way.
@jebise1126
Жыл бұрын
if side rotor on normal helicopter breaks its bad news
@timperry6948
Жыл бұрын
That just seems overly complicated. A minor failure would quickly escalate to catastrophic failure.
@RAIKOMotoVlog
Жыл бұрын
I think it will cost lots of vibrations
@jontait1095
Жыл бұрын
Nice
@diobrando6245
Жыл бұрын
Red Alert 3 Twinblades Chopper be like
@alexagaming6178
Жыл бұрын
Confusion in my relationship😂😂😂😂
@gabedarrett1301
Жыл бұрын
What are the advantages of such a design? The airflow would seem to be turbulent, leading to reduced efficiency and increased loudness
@miwiarts
Жыл бұрын
Worrying about helicopters being loud, lmao.
@raywhitehead730
Жыл бұрын
Increase in lift, given power of engine. And, interestingly, very good mechanical dependability.
@gabedarrett1301
Жыл бұрын
@@raywhitehead730 Do you have a source? You could be right, but my mind is having a hard time understanding why
@raywhitehead730
Жыл бұрын
I suggest you contact the Kaman Corporation, the Pedro Husky association and the end of the wiki page of the HH 43 Husky , it lists some references. My experience was personal. The max forward speed was a tad under 120 mph, cruising speed just a little over 100 mph. Aviator USN retired a long time ago. Also, search the K Max, and I think the US Navy is operating a Drone based off the K max currently.
@raywhitehead730
Жыл бұрын
With this configuration, you don't have the weight of a tail rotor nor its directional out of wind problems nor the additional gearing off the engine to power the tail rotor nor the maintenance required of a tail rotor.
@johnnynephrite6147
Жыл бұрын
impractical
@brianb-p6586
Жыл бұрын
Proven practical.
@KNITINSINGH
Жыл бұрын
You can just put four wings to one rotor instead of creating a intermeshing rotors system.
@radert6637
Жыл бұрын
진짜 똑똑하네 ㅋㅋㅋ
@airgunningyup
Жыл бұрын
so you now have jesus bolts and jesus gears , makes sense
@gps4347
Жыл бұрын
แบบนี้นี่เอง...
@Rahulchamoli
Жыл бұрын
Is there any risk to reward for this mechanism
@AKAtheA
Жыл бұрын
1) no tail rotor - the biggest weakness for a traditional helo 2) no coaxial shafts
@cartler
Жыл бұрын
Nope
@welcometoreality437
Жыл бұрын
@@AKAtheA Bro that's false, since when does people began thinking tailrotor is the mayor weakness?? This design is garbo.
Жыл бұрын
@@welcometoreality437 it was litterally on the USAF's flying firetruck, the HH-43. So much for garbage
@welcometoreality437
Жыл бұрын
@ yes that's right, you're talking about Vietnam time use of that aircraft. You're not proving a point, that design is garbage.
@harelrahman9722
Жыл бұрын
how confident you really are? imma build a god damn twin blade rotor,with just 50cm apart,some slightly angle,high revolution from turboprop engine,and yess we place it on top of our head...
@JULIET07991
Жыл бұрын
Flying in a time bomb
@Kiyprii
Жыл бұрын
Wind turbulance has entered the chat:
@kexcz8276
Жыл бұрын
Cool, but why would you want those blades under such angle? 😂
@bzig4929
Жыл бұрын
Because it gets two rotor systems in a much smaller footprint. The 15 deg mast angle means 96% of the lift is directed upwards. 2 rotors discs dont give twice the lift, but it's still much more than the lift produced by one rotor. This configuration is used for heavy lift helicopters.
@rosyidharyadi7871
9 ай бұрын
my brain hurts
@Pixelsplasher
Жыл бұрын
Imagine if one of the rotor gears looses a tooth or more.
@jebise1126
Жыл бұрын
imagine if rear rotor on normal helicopter gets broken
@HxTurtle
Жыл бұрын
looks cool; alas, not quite aerodynamically sound, lol.
@blenderhoneycombs
Жыл бұрын
You did not take into account that the blades of the helicopter are slightly bent and can touch each other.
@hmad898
Жыл бұрын
the kaman k-max works fine.
@brianb-p6586
Жыл бұрын
All helicopter rotor blades can flex (and even "flap" on hinges). The design accounts for that, so in real helicopters using this design the blades do not touch.
@jayantkumar2314
Жыл бұрын
Imagine someone with anxiety issue it is hell6
@markstephens4061
10 ай бұрын
Where is the ultralight kit version, come on
@Alexsandro-zc6sc
Жыл бұрын
Does anyone have the link to this day I couldn't find a photo or video what the rotor blade looks like inside if you're crazy what sheet metal is it made if it has a spar inside what is it like material specifications numberings like
@bzig4929
Жыл бұрын
Here's a link to a kmax helicopter... kzitem.info/news/bejne/jo2XzHyjqJOja2U
@russchadwell
Жыл бұрын
Wonder how the very first one did.
@andreyronik
Жыл бұрын
Как они обгоняют друг друга и тормозят за один круг? И как на этом поворачивать?
@markk3652
Жыл бұрын
That's classified information andrey.
@starguy2718
Жыл бұрын
@@markk3652 😄😄😄😄
@roseCatcher_
Жыл бұрын
Andrey check out helicopters that already use intermeshing/coaxials in their rotors.
@Silicon12340
Жыл бұрын
Stress level: ♾️
@shakedlw3394
Жыл бұрын
Imagine the noise and vibration, not to talk about blade kick
@brianb-p6586
Жыл бұрын
You don't have to imagine - just check out a real helicopter using this design.
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