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. 🤘😁👍
@@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.
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.
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.
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.
@@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.
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🇲🇾
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.
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
@@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.
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 RUclips, may appear and come off as an engineer, far too many have earned their degree’s from the University of RUclips. 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".
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!
@@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
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!
From watching RUclips 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.
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! 😂🤣
Complimenti veramente, e parecchio tempo che seguo il tuo canale, sono curioso di vedere il bilanciamento statico e dinamico delle pale del rotore. 👍👍👍👍👍👍
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
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!
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
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.
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.
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.
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
Here you can see how i Install the Blades and Support my Channel: ruclips.net/video/fouFXizTXJ0/видео.html
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.
🤘😁👍
@@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.
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.
Thanks because you share your skills with the rest of us.
I must say, your systematic approach to this is to be admired ... well done Sir!!!
Thanks Sir. I will make this helicopter Great.
Very strong rotor blades without rivets ❤️
I wonder.
Parabéns estou espiando desde o início apreensivo por ver voando essa sua máquina, muito capricho serviço de primeira 👌
me emociona tu trabajo hermosas palas bendiciones amigo
Wow, that is fantastic. I wish I'd seen you do this 10 years ago.
Those black bolts you put together really should be dipped in Loctite before torquing them down✌️🇺🇸
@@Waveluth He used nylon lock nuts, so Loctite shouldn't be needed. In truth, these should either be riveted or safety wired.
I loved the freehand counter sinking . great video Thanks
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.
J'ai un brevet ulm,je vole plus,mes c la première fois je voie comment sont fait les palmes,tres instructives 👍
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.
احسنت ايها المبدع تستحق ان لا نضيع اي ثانية من فيديوهاتك
Would be nice if you had access to some cnc mill for mounts and profile pieces. Your fabrication skills are great.
very fancy rotor fit for that Nigerian built helecopter.😊
AWESOME… now I know how it’s done…. Thank you 🙏👍
أعتقد أن الوزن أكثر من الزوم ولكن عمل رائع 😎
Will also be interested in the tapes as well.
Al fin alguien muestra como hacer los rotores, muchas gracias, me aclaro muchas dudas para hacer los míos.
Hand safety is important. Good Job...
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
вот это да! мужик Фурию собирает
лопасти конечно интересно сделаны
Exelente trabajo muchas gracias
Bring back memories of Dr.Shoemaker shop Detroit Michigan , Mc cellan & Shoemaker. 1970-1975.
The one suggestion that comes to mind is that you should have made a 3 blade and use it for load and stress tests.
Wou keren nice kreatif buat baling-baling blade mantap sir!!
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?
Muito Bom, ver um trabalho de precisão e de grande abilidades nas mãos de profissionais como você ,parabéns pelo capricho.
Sir. you are doing these well. Perfect tutorial for us to learn & very nice & complete workshop.. god bless you!!!!!!!!.
Thank you very much for the video. 👍🤗👍🇸🇯
Never seen no shit like this absolutely blows my mind
良いナー、うらやましい。
A lot more details to do than making a fixed wings . Thans for sharing this incredible work ❤
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...
Simply wow!! This is one of the best build videos with so much detail. Welcome back!! ❤❤
Very Impressive! and I love your metal working equipment and the Porsche
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.
Stick Ruler, Haven't seen one of those since way back when my ole man carried one, daily. Lol
Muito show de técnica e paciência
Un trabajo espectacular👏👏👏
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
@@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.
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?
It is great blad you have very talent.👍
Bom diaa ..!!! Baaa tchê vc eo cara parabéns por vc compartilhar seu conhecimento abraço RIO GRANDE DO SUL BRASIL ...!!
Ive been waiting for this specific video! where did you figure out how to engineer rotor blades?
Vary Wil done great work and smart 🧠 🧠 man
I THINK THOSE ARE A LITTLE BIT HEAVY, BUT NICE WORK
C'est intéressant et bien
Merci
It's a treat to watch you 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 RUclips, may appear and come off as an engineer, far too many have earned their degree’s from the University of RUclips.
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 :-)
Super boulot juste le serrage des platines au couple de serrage identique👍👍👍
Magnífico trabajo 👍
Beyond my skill and endurance level. A&P and Commercial Rotorcraft. Mucho admiration.
Отличная работа !
Очень аккуратно!
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?
Nice and hard job I am happy,
Take care bro
a realy pro work ! but is it balanced
Great job
All those builders in Nigeria would do well to watch this guy, learn how to properly build a helicopter. 😅
I don't get it?
The reason why they are failing is because they are using steel instead of aluminium!
@@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
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!
It's about money
From watching RUclips 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.
Da hora inteligentíssimo parabéns
Awesome work! very impressive! need some of these for my Brantly B-2B
iyi çalışma kolay gelsin 👍 👍
didn't think they would be built so heavy
guess it makes sense
I follow you from Iraq, thanks❤
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! 😂🤣
Ach du heilige Zibelemärit! Wahnsinn!
Gruess uf bärn :-)
@@ultralighthelicopter Hammer-Projekt. Ich drück dir alle 3 Daumen!
Wow U R Awesome Guy Joy To Look thx.
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...
I hope that spray isn't setting up internal corrosion.
Otherwise nice work.
Hmm. Great home imagination. Wonder how they performed?
Thank you l need this job I find it Sr
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
Yea goods kreatif keren very job sir!
craftsman with high skill
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!
Nice job, lot if imagination, but better not try to take into the skies...
That was art mate.. 👌
Excellent skills, but the blade is too heavy. It will be good to see strength and weight calculations.
Muito bom Deus abençoe você
Muito bom Deus abençoe você
What a blessed man thank you
Молодец!
Thanks for sharing this, its my dream to make my own helicopter.
Good
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
Top de mais. Like merecidíssimo.
Wow that's impressive 👏👍🏻. What type of adhesive glue did you use to secure all the metal bars and pipe together?
I'll vote (i) for incomplete !
Yes there is still alot to do...
Buen video
Exelent 😊😊
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...
Dear sir it's very beautiful work but the ss sheet skin on the tubing assembly fitted only with pu foam?
nice wings my man!
Keren
Some of the blads made of huny comb cell which is light and strong
yes
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.
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.
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