Main Rotor Blades EXPERIMENTAL HELICOPTER BUILD SERIES (Part 60)
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- Опубліковано 26 чер 2024
- Building the Main Rotor Blades for my ultralight homebuild helicopter.
This is part 60 of the EXPERIMENTAL HELICOPTER BUILD SERIES.
00:00 Disclaimer
00:02 Intro
00:25 Tube Assembly
11:27 Blade Skin
15:01 Bonding Tube Assembly and Blade Skin
22:01 Endcaps
22:52 Blade Seats
25:20 Blade Center of Mass
25:55 Cleaning Blade Skin
26:31 Root Reinforcement Tubes +Plates
30:27 Test-Fit Blade to Main Rotor Head
31:35 Blade Decal Stripes
34:01 Remove Parts from Blade for Cleaning
36:18 Final Blade Assembly
39:06 Overview / Outro
Kanalmitglied werden und exklusive Vorteile erhalten:
/ @ultralighthelicopter - Наука та технологія
Here you can see how i Install the Blades and Support my Channel: ua-cam.com/video/fouFXizTXJ0/v-deo.html
Thanks because you share your skills with the rest of us.
I've watched all your videos, some twice. This one of you fabricating the rotor blades is the most interesting. Thanks for sharing your expertise.
Very strong rotor blades without rivets ❤️
I wonder.
Very Impressive! and I love your metal working equipment and the Porsche
Parabéns estou espiando desde o início apreensivo por ver voando essa sua máquina, muito capricho serviço de primeira 👌
أعتقد أن الوزن أكثر من الزوم ولكن عمل رائع 😎
I must say, your systematic approach to this is to be admired ... well done Sir!!!
Thanks Sir. I will make this helicopter Great.
There is such thing as a Machinist level for the blade grip area. They are much more precise than a Carpenter’s level.
I’m surprised caulk is used instead of fiberglass resin and micro balloons.
Very nice though. I’m a RC heli person. Building blades is very difficult even on a small scale. I admire your drive!
is it normal that the blades are made of metal? does not it make it heavier?
Wow, that is fantastic. I wish I'd seen you do this 10 years ago.
AWESOME… now I know how it’s done…. Thank you 🙏👍
Wou keren nice kreatif buat baling-baling blade mantap sir!!
Al fin alguien muestra como hacer los rotores, muchas gracias, me aclaro muchas dudas para hacer los míos.
Magnífico trabajo 👍
Un trabajo espectacular👏👏👏
Bring back memories of Dr.Shoemaker shop Detroit Michigan , Mc cellan & Shoemaker. 1970-1975.
Muito Bom, ver um trabalho de precisão e de grande abilidades nas mãos de profissionais como você ,parabéns pelo capricho.
Those black bolts you put together really should be dipped in Loctite before torquing them down✌️🇺🇸
Muito show de técnica e paciência
Exelente trabajo muchas gracias
احسنت ايها المبدع تستحق ان لا نضيع اي ثانية من فيديوهاتك
Simply wow!! This is one of the best build videos with so much detail. Welcome back!! ❤❤
I loved the freehand counter sinking . great video Thanks
Sir. you are doing these well. Perfect tutorial for us to learn & very nice & complete workshop.. god bless you!!!!!!!!.
Waouh ! I was asking to my self, how are you going to build the rotors blades , this is the most difficult part, especially the weight of each blade they should be the same , to avoid nasty vibrations . Show us your first test flight . Tumb up x2 Budy see you on your next test flight.
Would be nice if you had access to some cnc mill for mounts and profile pieces. Your fabrication skills are great.
Superb video and job building the blades, very interesting and thanks for sharing it. Where did the blades balance in the chord-wise direction ? How close was the weight of each blade to each other? Not sure what adhesive you are using but I had an adhesive failure because I didn't etch prime or acid treat the aluminium. I was using 3M 2216 B/A adhesive, very expensive stuff but I didn't do a test sample. I suspect what you have done will be fine but you could add some trailing edge rivets just to be sure. Laminar flow separates way before the trialing edge so they won't make a difference to blade efficiency. Regards Ben
Thanks Ben. The chord-wise balance is close to 25% from leading edge. I had to replace some steel tubes (as requested in the plans) with aluminum tubes at the back side of the blade to get the chord-wise center of gravity more forward to the leading edge. Had planned to use rivets you can see the bore markings here: 21:57 but after bonding the blade the adhesive seems holding the trailing edges super strong so i wait with riveting and keep a eye on it how it will hold up after the first spin ups...
I weighted the blades, they both show the same weight but my scale is only to 0.1kg exact... Cheers
@@ultralighthelicoptersounds good to me 👍 if you do have any trouble with higher than expected collective forces then you can always add springs to the mechanism, many helicopters have springs on the collective when the blades chord mass isn't perfect. Look forward to seeing some blade spinning. That's when the fun really starts.
@@Ben-Dixey The CH-4 original had the towers with bob weights on the rotor head, like the Bell 47, to compensate that.
@@juancarloscasabuono6651 Thanks, I had forgotten about the weights on the blade grips option. Wonder which is considered the better option, weight vs reliability I suppose. Of course the best solution is to get the mass distribution right.
Rotor blades How long is one blade?
I think you should taper the root reinforcement. If its going to fail it will fail where the root reinforcement ends.
If they calculated and/or simulated loads and correct materials, this shouldn't fail. 20 screws and less stresspoints and more unbroken lines keep the moving parts stronger. Actually 22 specialised screws, looks overengineeredThis is also composite and looks very well worked out.
This should be good. It is quite over engineered given the intended load.
Bom diaa ..!!! Baaa tchê vc eo cara parabéns por vc compartilhar seu conhecimento abraço RIO GRANDE DO SUL BRASIL ...!!
вот это да! мужик Фурию собирает
лопасти конечно интересно сделаны
very fancy rotor fit for that Nigerian built helecopter.😊
Awesome work! very impressive! need some of these for my Brantly B-2B
Отличная работа !
Well, now im afraid to fly in a helicopter now! Never in a million years, would i have guessed the blade were made like this.
Sketchy, and slightly brilliant! Youd think the centrifugal force, would cause the insides to fly out. I guess thats also why theres so many bolts on the mount end.
Still neat to watch!
Beyond my skill and endurance level. A&P and Commercial Rotorcraft. Mucho admiration.
Saya sudah lihat semua proses dari episod 1 hingga 60 dan saya tidak sabar untuk lihat awak terbangkan nya..baru tahu susah nya membuat helikopter,semua nya harus ikut buku manual..saya yakin dengan helikopter buatan awak berbanding orang lain yang cuba membuat helikopter tanpa ada pengetahuan dan panduan buku manual,hanya membuat ikut apa yang di lihat..kita bermain dengan nyawa..saya lihat di youtube pun tidak yakin ia boleh terbang,bagaimana perasaan jurupandu😂😂~malaysia boy🇲🇾
Terima kasih kerana berminat dengan video saya. Silangkan jari anda untuk penerbangan pertama saya. Selamat sejahtera...
Ini baru pe you tobe yang bagus tidak ada tipu tipu saya suka ikuti kalau saja ada di indonesia sya pasti suda pergi kursus dan kalau bisa saya akan minta kerja samanaya dan saya pasti belajar.
Stick Ruler, Haven't seen one of those since way back when my ole man carried one, daily. Lol
It's a treat to watch you work
Boa tarde Amigo, esse é um processo de fabricação no qual eu sempre quis ver como é confeccionado. Sou de Campo Grande - Rio de Janeiro. Parabéns.
Campo grande ou rio de janeiro?
良いナー、うらやましい。
que hermosas palas muy profecionales amigo me enceñarias hacerlas tengo un proyecto hacer un helicop hace años y por las palas que no sabia como son estoy frenado
A lot more details to do than making a fixed wings . Thans for sharing this incredible work ❤
This video came up in my feed somehow, but all hail the algorithm for it,,,
I’ve watched a few a have a number of questions, but will wait until I get through the series as I’m sure it’ll become clearer.
But you, my friend, are a madman,,, lol ;)
I wish you the best on this journey, you appear to have a handle on it and know what you’re doing.
Unfortunately, so many people through the magic of video editing and UA-cam, may appear and come off as an engineer, far too many have earned their degree’s from the University of UA-cam.
I myself am not an engineer, though I play one on TV,,, (or YT),,,, ;)
Tho through my 30 years of fabrication I have learned a thing or two and can speak confidently on a few things.
Again, I haven’t made it far in the series yet, but did you have to address any heat-treating issues after welding any of the aluminum?
With all your bell cranks pivoting on threaded / partially threaded stainless (it appears) fasteners, I would think that bushings of some sort would be appropriate?
Some, from what I could see, are pivoting on the shank, but some appear to be riding on the threads, and with the constant cycling and vibrations,it would seem a bit safer a long wearing.
Yet again, I’m no one but a stranger from the internet making an observation and offering you a well deserved "Atta’ Boy".
Thank you :-)
Thank you very much for the video. 👍🤗👍🇸🇯
What a blessed man thank you
Fantástico duas séries do rotor tô vendo assistindo desde o começo vou ver se consigo fazer desse mesmo jeito que eu tô fazendo a minha meu helicóptero mosquito tem que ser desse jeito porque senão não vai dar certo Muito obrigado
Ive been waiting for this specific video! where did you figure out how to engineer rotor blades?
Will also be interested in the tapes as well.
Da hora inteligentíssimo parabéns
The one suggestion that comes to mind is that you should have made a 3 blade and use it for load and stress tests.
Hand safety is important. Good Job...
Super boulot juste le serrage des platines au couple de serrage identique👍👍👍
Yea goods kreatif keren very job sir!
amazing,man. I m from china,when i watch you video.I get shocked.I want to learn some experice from your video thanks
good good study, day day up
Vary Wil done great work and smart 🧠 🧠 man
It is great blad you have very talent.👍
iyi çalışma kolay gelsin 👍 👍
Top de mais. Like merecidíssimo.
I think I got this man. I can’t afford stainless so I guess mild steel will have to do but what could go wrong especially when I’ve got the Jesus bolts holding everything together
Wow U R Awesome Guy Joy To Look thx.
Never seen no shit like this absolutely blows my mind
Great job
Ach du heilige Zibelemärit! Wahnsinn!
Gruess uf bärn :-)
@@ultralighthelicopter Hammer-Projekt. Ich drück dir alle 3 Daumen!
Очень аккуратно!
❤
From watching UA-cam videos on USA Military helicopters and rotor blades - they’re built out of composite materials because no metal alloys can withstand the lateral forces imposed upon them. Nomex epoxy is used to build them.
Dear sir it's very beautiful work but the ss sheet skin on the tubing assembly fitted only with pu foam?
I follow you from Iraq, thanks❤
That was art mate.. 👌
I hope that spray isn't setting up internal corrosion.
Otherwise nice work.
Muito bom Deus abençoe você
Muito bom Deus abençoe você
didn't think they would be built so heavy
guess it makes sense
Buen video
Молодец!
Я так понял, что обшивка лопасти держится на монтажной пене и чёрной изоленте?
PAAARABEEENNS, NOTA MIIILLL SEM COMENTÁRIOS !!!
Awesome!!!
Crazy cool
Very novel construction. Great workmanship. I am though surprised that the trailing edge skins are not mechanically fastened, relying on adhesive only, but being a free-edge and prone to flutter, at leat a rivet at the tip, and a few other radial places? The root of course is dealt with by the incidence control plate.
I noted that too.
Not bad! Looking good!
A very interesting video. I was wondering if, when you were finding the blade CoG, was if in the same position for both blades, as in the same distance from the leading edge and from the root and tip, for ultimate balance?
Also, having one end cap painted say white to help with blade tracking and a reference for which blade holder that it's fitted too.
I would think using pieces of steel stock/square pipe/T-bar etc. to clamp the TE together while foam is expanding and drying would make a more consistent and no gap TE.
What is TE
@@rendyalfaricky9207trailing edge
Excellent, I loved this approach because if the twist in it. But couldn't get the right tubes anywhere i enquired...I would be flying or crashing mine by now had the blades not been this much of a headache, building them now the mosquito way. See you on hover mate. 😅.
Spin up your engine I need to see how your gearbox breather leaks are circumnavigated.
Thank you... Im looking forward for your approach on the blades...
I THINK THOSE ARE A LITTLE BIT HEAVY, BUT NICE WORK
Complimenti veramente, e parecchio tempo che seguo il tuo canale, sono curioso di vedere il bilanciamento statico e dinamico delle pale del rotore.
👍👍👍👍👍👍
Grazie mille... Sì, bilanciare le pale del rotore sarà un passo successivo interessante...
essa quantia de furos e parafusos nao enfraquece o aluminio?
ao meu ver, a metade dos parafusos ja estaria de bom tamanho...
tem coisas que menos é mais...
Keren
I don’t care WHAT your bestest buddy said, I think your genius! 😂
No really thanks because now im willin to give it s shot.
And thank goodness you labeled em left an right! 😂🤣
craftsman with high skill
a realy pro work ! but is it balanced
Had I not thought that rotor blades are so massive and heavy, rather carbon fiber and epoxy.
Heavy blades give better autorotation.
Better to use tip weights as inertia is a function of weight and speed. There’s not much speed at the root end of the blade. There are many areas of this helicopter where modern composites would provide superior strength, lightness, durability, or fatigue life. The rotor blades are just one of them. But it’s still a pleasure to watch it being built.
@@russella7263are you implying that you can build the entire blade out of carbon fibre and resin without the stainless steel ribs? Would that be strong enough? Wouldn't that be too brittle?
I wish i knew better sir, thank you.
@@pauldatche8410, military helicopter blades are built totally out of composite materials as they are the only thing that can withstand the outward forces.
Wow that's impressive 👏👍🏻. What type of adhesive glue did you use to secure all the metal bars and pipe together?
nice wings my man!
Never seen the blades made that way before a lot of metal in thoughs blades.
Bravoooooooó
Hmm. Great home imagination. Wonder how they performed?
Ты еще-бы начал с заготовок как их выпловляют было-б ещё веселее.
Thank you l need this job I find it Sr
Wow