Main Rotor Blades EXPERIMENTAL HELICOPTER BUILD SERIES (Part 60)

[@ultralighthelicopter]

Here you can see how i Install the Blades and Support my Channel: kzbin.info/www/bejne/nKDYd4ufr7mLgJI

[@murmur3966]

Hello Hello From Canada!!! I am new to your channel and I am so excited to check out all the episodes you have produced. I hope this is not a dumb question, but I am not a member so I can not yet see the final install, so is am wondering if the diameter shown now of the hole for the Jesus bolt, or have you kept the same or gone to a bigger bolt diameter. I'm not sure if you may have had this question before, but I'm a structural designer and I'm really curious if you opted to use a larger bolt or not? t is Incredible to watch your approach to creating each item as detailed as possible, so your videography for the project is amazing and so great to watch as you progress. Thanks for all your extra work sharing this all with us. I hope you stay safe, healthy and as happy as you possibly can be. 🤘😁👍

[@ultralighthelicopter]

@@murmur3966 Hello and thanks for your comment. To your question: No i did not change the diameter of the jesus bolts for the early flight tests, but i had to make a pair of updated, lighter rotorblades. With the new rotorblades the diameter of the jesus bolts is safe in regards of the centrifugal force created by the spinning blades.

[@alexaltrichter1597]

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.

[@expsgeorge]

Thanks because you share your skills with the rest of us.

[@josephkipchumba7759]

Very strong rotor blades without rivets ❤️

[@jukkatakamaa7274]

I wonder.

[@ronaldjtriumph5985]

I must say, your systematic approach to this is to be admired ... well done Sir!!!

[@ultralighthelicopter]

Thanks Sir. I will make this helicopter Great.

[@Ngnkg]

احسنت ايها المبدع تستحق ان لا نضيع اي ثانية من فيديوهاتك

[@elizeusilvabezerra4767]

Muito Bom, ver um trabalho de precisão e de grande abilidades nas mãos de profissionais como você ,parabéns pelo capricho.

[@jcmaosaobra2791]

Parabéns estou espiando desde o início apreensivo por ver voando essa sua máquina, muito capricho serviço de primeira 👌

[@plainnpretty]

I loved the freehand counter sinking . great video Thanks

[@locodefra]

Al fin alguien muestra como hacer los rotores, muchas gracias, me aclaro muchas dudas para hacer los míos.

[@CameronCarter1]

Wow, that is fantastic. I wish I'd seen you do this 10 years ago.

[@saeidmoini1906]

AWESOME… now I know how it’s done…. Thank you 🙏👍

[@opmcentrales5174]

Un trabajo espectacular👏👏👏

[@dietterflieller5003]

Exelente trabajo muchas gracias

[@shanakaliyanage6875]

Simply wow!! This is one of the best build videos with so much detail. Welcome back!! ❤❤

[@simonalbertocalderonflores854]

me emociona tu trabajo hermosas palas bendiciones amigo

[@larbak666]

Muito show de técnica e paciência

[@SpeedFireARL]

вот это да! мужик Фурию собирает лопасти конечно интересно сделаны

[@jayatissapeiris6781]

Sir. you are doing these well. Perfect tutorial for us to learn & very nice & complete workshop.. god bless you!!!!!!!!.

[@jorgemacias6736]

Magnífico trabajo 👍

[@Alex-Pilot]

Отличная работа !

[@bobbean4702]

Beyond my skill and endurance level. A&P and Commercial Rotorcraft. Mucho admiration.

[@eiichishiraishi9911]

良いナー、うらやましい。

[@reylova]

Hand safety is important. Good Job...

[@davemunday2652]

It's a treat to watch you work

[@dang25272549]

A lot more details to do than making a fixed wings . Thans for sharing this incredible work ❤

[@josefaustino3746]

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.

[@dietterflieller5003]

Campo grande ou rio de janeiro?

[@TYanick-kz6ns]

J'ai un brevet ulm,je vole plus,mes c la première fois je voie comment sont fait les palmes,tres instructives 👍

[@اكرماكرم-س8ح]

أعتقد أن الوزن أكثر من الزوم ولكن عمل رائع 😎

[@UbatSusa-yc1zc]

very fancy rotor fit for that Nigerian built helecopter.😊

[@Waveluth]

Those black bolts you put together really should be dipped in Loctite before torquing them down✌️🇺🇸

[@wormturned7379]

@@Waveluth He used nylon lock nuts, so Loctite shouldn't be needed. In truth, these should either be riveted or safety wired.

[@nilsdietrich5563]

Would be nice if you had access to some cnc mill for mounts and profile pieces. Your fabrication skills are great.

[@yerpisumbugajakalimandang778]

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.

[@annechristiansen941]

Thank you very much for the video. 👍🤗👍🇸🇯

[@dundas9222]

Very Impressive! and I love your metal working equipment and the Porsche

[@Ideiasepensamentos]

Bom diaa ..!!! Baaa tchê vc eo cara parabéns por vc compartilhar seu conhecimento abraço RIO GRANDE DO SUL BRASIL ...!!

[@ColinWatters]

I think you should taper the root reinforcement. If its going to fail it will fail where the root reinforcement ends.

[@dannydetonator]

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.

[@pauldatche8410]

This should be good. It is quite over engineered given the intended load.

[@jnewbytrader370]

Awesome work! very impressive! need some of these for my Brantly B-2B

[@ЭдуардМатигуллин-п9л]

Очень аккуратно!

[@gimayer9511]

amazing,man. I m from china,when i watch you video.I get shocked.I want to learn some experice from your video thanks

[@lo2740]

good good study, day day up

[@FrancisTucker-k5m]

Will also be interested in the tapes as well.

[@mdu6]

The one suggestion that comes to mind is that you should have made a 3 blade and use it for load and stress tests.

[@buditarigangersang3692]

Wou keren nice kreatif buat baling-baling blade mantap sir!!

[@JosephDent-qd9ih]

Bring back memories of Dr.Shoemaker shop Detroit Michigan , Mc cellan & Shoemaker. 1970-1975.

[@bulenboncuk426]

iyi çalışma kolay gelsin 👍 👍

[@Ben-Dixey]

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

[@ultralighthelicopter]

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

[@Ben-Dixey]

@@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.

[@juancarloscasabuono6651]

@@Ben-Dixey The CH-4 original had the towers with bob weights on the rotor head, like the Bell 47, to compensate that.

[@Ben-Dixey]

@@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.

[@user-jg5]

Rotor blades How long is one blade?

[@thewolf3530]

Vary Wil done great work and smart 🧠 🧠 man

[@JimmyZ408]

Stick Ruler, Haven't seen one of those since way back when my ole man carried one, daily. Lol

[@masoudemaratsaz2052]

It is great blad you have very talent.👍

[@dodafarias9753]

Da hora inteligentíssimo parabéns

[@ericleherissey3252]

Super boulot juste le serrage des platines au couple de serrage identique👍👍👍

[@aprianto1985]

Great job

[@user-jg5]

I follow you from Iraq, thanks❤

[@Josue-d6g]

C'est intéressant et bien

[@ultralighthelicopter]

Merci

[@alitn588]

That was art mate.. 👌

[@jusieresaugusto2502]

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

[@manojroy7741]

Nice and hard job I am happy, Take care bro

[@guibischoff]

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...

[@wandersonmuniz9895]

Top de mais. Like merecidíssimo.

[@halilinusi]

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🇲🇾

[@ultralighthelicopter]

Terima kasih kerana berminat dengan video saya. Silangkan jari anda untuk penerbangan pertama saya. Selamat sejahtera...

[@dave1135]

All those builders in Nigeria would do well to watch this guy, learn how to properly build a helicopter. 😅

[@demoaccount2392]

I don't get it?

[@AutodidactEngineer]

The reason why they are failing is because they are using steel instead of aluminium!

[@blackturbine]

@@AutodidactEngineer they are failing because they lack knowledge, seen one using peice of flat board as propeller, and from everything I'we seen lot of them have access to knowledge just don't want to go through the effort

[@dannydetonator]

Yeah, they should, though.. only thing left to do is figure out geometry and how to make this from replicate this from tinned roof, wood and elephant-bone glue, instead of professional CNC stock material and fully equipped CNC mchine-shop with specialised tools and compounds. But Angola rules!

[@stephenkinyanjui5659]

It's about money

[@HOTSHOT-ls1bc]

Never seen no shit like this absolutely blows my mind

[@ПавелБондарев-ш1с]

Молодец!

[@rafaelbrito2372]

Exelent 😊😊

[@joseevaristo8484]

Muito bom Deus abençoe você

[@joseevaristo8484]

Muito bom Deus abençoe você

[@yordi55]

What a blessed man thank you

[@williampihahuna195]

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.

[@richardbadish6990]

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!

[@muhammadkamran851]

Dear sir it's very beautiful work but the ss sheet skin on the tubing assembly fitted only with pu foam?

[@kevinmorrison1553]

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!

[@hmidoud1]

is it normal that the blades are made of metal? does not it make it heavier?

[@uncledoc9010]

Ach du heilige Zibelemärit! Wahnsinn!

[@ultralighthelicopter]

Gruess uf bärn :-)

[@uncledoc9010]

@@ultralighthelicopter Hammer-Projekt. Ich drück dir alle 3 Daumen!

[@windsurfsongkhla]

Wow U R Awesome Guy Joy To Look thx.

[@rockyrivermushrooms529]

Ive been waiting for this specific video! where did you figure out how to engineer rotor blades?

[@catchulater7483]

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! 😂🤣

[@simonalbertocalderonflores854]

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

[@larrywhalen596]

@@simonalbertocalderonflores854 Simon: Sir, the video has everything needed to make a set of blades, (rotors), which can then be used on most, if not all of the Homebuilt choppers this size. As far as bending the material you're probably going to have to locate a shop that has a large enough "brake" which can bend the material to the shape you'll need. Watch the video several times and make NOTES so you can refer to them as needed - I even sat down and did some detailed drawings I could refer to so that when I build a set of aluminum blades such as these I can do it knowing I will get it right the first time But for now I'm working on building three sets of all wood blades for a 60's vintage Bensen B8M I have. Why three sets, (?), well one set is to test a theory I've been trying with for awhile and if they produce any appreciable lift then I will share it with whomever would want to use them on the Bensen / Brock type gyros that are still in use, or other similar sized aircraft.

[@paulbush7095]

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

[@shakeydavesr]

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 KZbin, may appear and come off as an engineer, far too many have earned their degree’s from the University of KZbin. 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".

[@ultralighthelicopter]

Thank you :-)

[@marc_frank]

didn't think they would be built so heavy guess it makes sense

[@xcarlo72]

I THINK THOSE ARE A LITTLE BIT HEAVY, BUT NICE WORK

[@buditarigangersang3692]

Yea goods kreatif keren very job sir!

[@cesarmatiasbalderrama3658]

Buen video

[@martyisabeliever]

nice wings my man!

[@sahabatlistrik2447]

craftsman with high skill

[@Muslixtrades]

Thanks for sharing this, its my dream to make my own helicopter.

[@DudleySmith-ht7nr]

Can you share the finished blade weights using this technique? Thanks

[@helicopterovirtual-msfs6254]

Perfeito 👏

[@jmikronis7376]

From watching KZbin 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.

[@Saimon164]

Complimenti veramente, e parecchio tempo che seguo il tuo canale, sono curioso di vedere il bilanciamento statico e dinamico delle pale del rotore. 👍👍👍👍👍👍

[@ultralighthelicopter]

Grazie mille... Sì, bilanciare le pale del rotore sarà un passo successivo interessante...

[@miloudlemlem1520]

a realy pro work ! but is it balanced

[@mobiletruck4621]

Good

[@timeinbu7909]

I hope that spray isn't setting up internal corrosion. Otherwise nice work.

[@feman43]

Crazy cool

[@javierdias9716]

Tengo 61 años y desde niño en el año 1968mas oenos a mis 6 años dije que yo pudiera volar y todo mi pueblo se burló de mí decían que era imposible que estaba loco tengo en mente un proyecto no 0ara demostrar a los das si no a mí mismo que si se puede esas paletas de rotor principal me facinaron mucho no se el costo y envío pero algún día las tendré es un sueño que quiero que se va a ser realidad un día primero Dios

[@SMOKEY-JAYS-DIESEL]

Wow that's impressive 👏👍🏻. What type of adhesive glue did you use to secure all the metal bars and pipe together?

[@EdsonpratesFerreira]

great! but dont need torsion along of lenght?

[@ultralighthelicopter]

thanks. The blade has a 6° torsion along its leng. You can see the twist on the jig, every airfoil-shaped wood cut-out part is 1° angle from each other

[@husseinsalman4759]

Did you use iron bars ?

[@Болгарин-т5р]

Я так понял, что обшивка лопасти держится на монтажной пене и чёрной изоленте?

[@larrywhalen596]

NO. The expanding foam is to maintain the airfoils shape once it "sets", (or hardens), while an adhesive especially developed for aluminum is used to bond the top and bottom surfaces together.

[@brianhaselden9186]

Not bad! Looking good!

[@juancarloscasabuono6651]

No rivets on the trailing edge at least?

[@ultralighthelicopter]

I was planning to use rivets on the trailing edge, you can see the bore markings here: 21:57 but after a test of a bonded test-blade the adhesive seems super strong and i wait to rivet for now but will keep a eye on it after first spin up tests.

[@1975Per]

@@ultralighthelicopter Did you ever think of spot welding (through welding)? instead of glueing/riveting? Minimal warping I would think. (you could probably still do it if you want to, to add strength).

[@harryharrison4876]

If you’ve ever seen an R22 blade delaminate, you’d use rivets! Love your Porsche!

[@dundas9222]

@@harryharrison4876 On the Porsche

[@wilsonanastacioguilherme2741]

PAAARABEEENNS, NOTA MIIILLL SEM COMENTÁRIOS !!!