contra rotating propellers (No. 1) in ENYA60X
HTML-код
- Опубликовано: 14 сен 2023
- ★ Vol-2 Structure edition → • Contra rotating propel...
☆ Click here for Unit 2 → • Contra rotating propel...
☆ (New work) Click here for the new No. 3 machine → • Contra rotating Propel...
★ What is Contra?♪♪ In modern civilized society, electric models are rapidly evolving, but there are no engine-powered Contras in model airplanes. Regardless of the trends of the times, as an ``engine geek?'' I feel lonely. The idea is to make the propeller fly at 10,000 revolutions, so it's a lot of trouble, but I have no choice but to try making it myself (^^;. 
Наука
世の中には隠れたすごい人がたくさんいるんだなと思い知らされますね
コメントありがとうございます、励みになります。😄
Super great idea and job!! But please take the music out of the video. We want to hear the original sound of all the machines.
Thank you for your comment. Well, this research has just begun, so I'll take this into consideration from now on. Thank you for your advice.
That has got to be the coolest RC propeller setup I've seen thus far! I've never seen someone successfully design and build a working setup like yours! Congratulations! Job well done! 👏
Thank you for your comment, it's encouraging.😄
Pretty sure there's some f3a pilots and contra rotating prop manufacturers that disagree with you.
@@neilbarclay7070 It is one thing with motors. Completely different with a single engine. Although, I do not know how practical this would actually be.
Great engineering work and precision machining with highly skillful workmanship combined with great Japanese Made great engine, the engine also famous for its reliable and long life working. On about 1977 in Hong Kong, I have an Enya 60X modified to water cooled for sport cruiser, then converted to rear intake side exhaust for speed boat and give plenty year of modelling pleasure.
Thank you for your comment. We are still testing it and there is some power loss, so we have not reached its full potential, so we will continue to do various things. Please enjoy a good radio control life.
Thank you for your comment, it's encouraging.
I used to have an ENYA. Nice motors. Nice work! I wanted to hear it run without the music.
Thank you for your comment, it's encouraging.😄
You have made an incredible contra-rotating propeller system. Congratulations!
Be safe, i want to see more cool things from you for a long time.
Thanks for your comment. This is encouraging, so please look forward to it.😄
If you're that good of a machinist and able to make a counter rotating system like that I'd like to see you make your own engines
After all they're not that complicated there's only a few moving parts and they're a sleeve valve engine which is interesting to me anyway
I hate people saying to stay safe but in this case it is indeed required lol
@@darrinbunston5932 Thank you for your comment. Well, a lot of people are actually building engines, but they can't compete with the manufacturers. What I'm aiming for is to achieve something that engine manufacturers can't do, and I don't think a company can do it at the moment due to the production costs, and even if it were possible, it wouldn't be profitable unless they produced a huge number of them. No, and I doubt how many enthusiasts will need this.😅
Ce serait intéressant de le voir monter sur un avion et le voir voler.
Excellent job! Cannot believe how smoothly it ticks over at low revs!
Thank you for your comment, encouraging.😄
I remember the Enya engines when bought my first OS SF 61 and FP 45. My brother bought the OS SF 45 which was already broken in and we were shocked that it performed really well. Those were the good old days.
Thank you for your comment. Well, the engine I bought with my first salary after becoming a working adult was the OS29R.😁
I had an “enya 19 “ over 50 years ago . It used to really scare me and made my finger very sore .
@@sobeit1927 In the past, there were no electric starters, so starting the engine was difficult.😅
@@sobeit1927 one has to learn to "bounce off compression"... watch an old girl being started, like a gnome radial... the smart guys actually flick them BACKWARDS. use the kickback to get them running.
they'll give you more than a sore finger if you get it wrong!
@@sobeit1927 , 1st rule: do not over-prime the engine....😉......being difficult in a 0.19 cu
In 1986 I built one of these for a Mechanical Design course for my MSME at Stanford University. I failed to properly calculate the pulsing loads from the engine firing and undersized the drive belt by a factor of 3. It started and ran - for a few minutes. I got an "A" and a fun memento for my workshop. Yours looks like a proper sizing job. Congratulations.
Thank you for your comment. Well, the load calculations were unpredictable.Currently, the belt size has been reduced by 30%, but we are still trying to reduce it.
LOL!
i had the funky idea of mounting a diesel engine and belt driven genset to my cheap backhoes. of course, it then got an overcenter clutch for the hydraulic pump, so i could disengage that...
after the third belt, i checked a calculator, it said i needed FIVE BELTS!
so the pumps went back to direct drive. it was at this point that i realised an e-clutch from a mower was perfect... except i had hacked that vital 1 inch off the crankshaft to mount one... should have clicked sooner, as the genset has an e-clutch...
the genset? its fine on a pair of V belts. larger diameter pulleys, etc...
sigh. i hate hindsight!
Beautiful work. Thank you for sharing.
Thank you for your comment.
Nice job; love the 'safety slippers'! : )
Thank you for your comment. Well, it can be quite dangerous, right?
I really wanted to hear the engine running at full power . . . and all I got was damn *MUZAK!!*
Thank you for your comment. The current output is about 70%, and the sound of the highest output is the one you hear when you hit the tachometer in the video while driving.
Lovely piece of work . Thanks for showing
Thank you for your comment, it's encouraging.😄
Very fine design and workmanship! Congratulations, it's beautiful!
Thank you for your comment. It's encouraging.😄
"Counter rotating" -This video is AWESOME. Nicely done!
Thank you for your comment. It's encouraging.😄
Nicely made! Good job!👌
Thank you for your comment, it's very encouraging.
A work of art, absolutely beautiful.
Thank you for your comment, it's encouraging.
Outstanding craftsmanship.
Thank you for your comment, it's encouraging.
This is a great video of happy fabrication resulting in very happy outcome!
Thanks for your comment. It's true, it's not a fabrication, it's the real thing.😅
Incredible engineering and machining here. Excellent!
Thank you for your comment, it will encourage me next time.😄
素晴らしい工作精度。
Thank you for your comment, it's encouraging.
Very nicely done, excellent craftsmanship
Thank you for your comment. It's encouraging.😄
Trabalho fantástico! Parabéns
Obrigado pelo seu comentário, é encorajador.😄
ヘリ用の二重反転システムは試作段階まで作ったが、実機乗せまでは資金が足りなくて断念した（傘歯をデフギアみたく組んだもの）完成させるのは素晴らしい事ですね
コメントありがとうございます。資金不足とはいえ、実機乗せまで考慮とはすごい事です。自前はまだ模型でさえ実飛行に至っておりません。毎日の様に問題を少しずつ解析してますが先は長そうです、応援感謝致します。
やっぱり二重反転は浪漫。
最高です…✨
コメントありがとうございます。模型用としては課題の多い作品ですが励みになります。
This Gentleman is a Master craftsman and a master machinist. I love watching masters build things like this for no other reason than personal satisfaction and (probably) someone told them it is "Impossible". Well done sir!
Thank you for your comment. It's not perfect yet, but it will serve as a starting point for my next work.😄
@ken23p Sir your "perfect" and mine are two different things! If there was an award given for excellent machine work your machining on the spinner alone would be Oscar worthy. When you put the pieces together on the front and back halves, you can't even see the seam. Really world class work! What surprised me the most was the fact that you got the Enya .60 to spin both of those big props. I take it that you built a gear reduction drive as well? I know Byron Originals used to sell something similar back in the 1980s so that a .60 2 stroke could spin a much larger prop...Single prop obviously...
@@mapquest681 Thank you for your praise. I have been building products based on my own experience and intuition, and I didn't know that Byron Originals was producing and selling a similar system. I'd really like to see it, and I'll be publishing the structure of the system soon, so I hope it's helpful.😄
Well done ! How fun ! Now to see it installed and flying / boating / whatever -- moving.
Thank you for your comment. We are currently experimenting with it, but please look forward to its completion.😄
Fantastic workmanship. And excellent engineering skills too 🤯
Thank you for your comment, it's encouraging.😄
Nice workmanship
Thank you for your comment.(^^)
I might of done it with planetary gears, but your solution is indeed unique!
Thank you for your comment. I thought about planetary gears, but gave up because the bearings and shafts that support a system that rotates over 10,000 revolutions would be too exaggerated in a model engine.😅
Fantastic build 👍
Thank you for your comment.
😄
Really nice engineering and machining! Beautiful work. Would love to see it in a scale model flying.
Thank you for your comment, it's encouraging.😄
Beautiful. A work of art created by a true master craftsman.
Thank you for your comment, it's encouraging.😄
@@ken23p I am trying to get prototypes manufactured for some of my designs. I'm currently separated from most of my tools. Do you do any model car designs as well?
@@NeriEngineering-oq6vh Thank you for your comment, please complete the model car. I've only driven cars in slot racing cars a long time ago, but model cars look interesting so I'm interested.😅
Aerospace engineer here: I have no idea how or why RUclips recommended your video BUT I AM VERY HAPPY IT DID.
That is beautiful engineering.
Thank you for your comment. It's very encouraging.
@@ken23p No Probs.
If you can - When you get time do a series on how you made it.
Très ingénieux et bien réalisé, bravo !
thank you. I'm happy.😄
beautiful, intelligent design, congratulations
Thank you for your comment. It's encouraging.
There are just some incredibly skilled and brilliant people in this world!
Thank you for your comment, it's encouraging.😄
My feelings exactly. Well-spoken!
This is what the current F3A world needs! Not batteries and BECs.. great work!
Thank you for your comment. We are conducting daily experiments to put it into practical use, so please look forward to it.
An Enya 60 doesn't produce enough power for f3a. Also, weight is always an issue. For f3a you need a system that will generate 3500W plus, and weigh no more than 1.85 kg including spinners, props, and mounting system...
If you want to quickly win a competition, I think it would be better to purchase the "electric contra rotating" system currently available on the market.
Klasse Arbeit , Respekt !!!
Vielen Dank für Ihren Kommentar, er ist ermutigend.😄
Cool video and great work 👍
thank you. It's encouraging.😄
Nice job, very cool!!
thank you. It's encouraging.😄
Absolutely beautiful work! Somewhere there is a modeler building a Tu-95 looking for your engine.
Thanks for your comment. We have to make three more units, which is a hassle.😅
How about a Fairey Gannet then? 😀
@@matsgustavsson665 Well, with the Fairey Gannet, you have to use a turboprop engine.😅
And you wouldn't with a Tu-95 ? 😀 Well, there is always Avro Shackleton...
@@matsgustavsson665 TU-95 is difficult because I have to make 4 sets.😅
Great job! ...
I had a similar idea for some time.. With use of 3 engines.. 2 Enya engines and an electrical propulsion in the back for support, start and generator.
Use 2 Enya diesel engines in a flat 2 configurations, similar to a boxer engine, Only with 2 crankshafts mated together with gears in the back.
One of the Enya engines housing has to be turned around to so that both exhausts face up.
And one of the engine has to spin opposite direction.
Both of the engines then drive a propeller with a pully and a belt.
Thank you for your comment. Let's make your great ideas come true!
Awesome. Well done!
Thank you for your comment, it's encouraging.😄
That's a beautiful engine
Thank you for your comment, it's encouraging.😄
Slick setup, hope you’ve had all the kids you’re planning on. I sure wouldn’t point that at my junk!
Thank you for your comment. I will use it as a reference later.😁
Amazing build! What was in that first tank you filled up on the test stand?
Thanks for your comment. Lubricating oil diluted with fuel.
that's beautiful man!
thank you😄
Excellent. If you want to go fast, get an Enya. Super Cool.
Thank you for your comment, I will take it into consideration.
😀
"You worked hard on this innovation. Good job."
Thank you for your comment, it's encouraging.😄
They made the exact same engine externally in an .80 size which would give you more power. My only criticism is running that thing in your face. Safety requires we stand behind the propellers even on regular single-propeller model airplane engines
Thank you for your comment. Well, I've had a propeller come flying at me a few times in the past.😅
Question - Just why / how does the belt-driven prop turn in the opposite direction from the prop attached directly to the crank shaft? A mechanical illustration or interior parts assembly photo would be nice.
Thank you for your comment. The belt-driven propeller is rotated in reverse by two gears inside a box taken out from the crankshaft at the rear of the engine. We are currently making operational adjustments and parts machining to improve performance.The next video, "Version 2," will be released in due course, so please enjoy it.😁
Congratulation. High skill sir.
Thank you for your comment, it's encouraging.
Excellent! Keep it gas!
Thanks for your comment.😄
Very nice!
Thank you for your comment, it's encouraging.
Great work :D
Thank you for your comment. I will strive to do even better work.
Excelente la habilidad del Maestro
Gracias por tu comentario, es alentador.😄
Un énorme travail d'ingénierie, du top niveau que je ne pensais jamais voir un jour ! BRAVO MONSIEUR. Serait il envisageable un jour de voir vos moteurs sur l'avion "Bear"
Merci pour votre commentaire. C'est encourageant.😄
wow that is a lot of prop for a 60 but it swings it cool dude really cool
Thank you for your comment, it's encouraging.😄
Outstanding!!
Thanks for your comment.
Perfect Work!!!! Seeing your video, I feel amazed and thank you for sharing this video and success always "Ken ......."....Pekalongan, Central Java, Indonesia
Thank you for your comment. It will be an encouragement for the future.😄
Keep working, stay enthusiastic
Nice Job Ken.👍👍👍👍👍👍👍
Thank you, that's encouraging.😄
Muito bom.
obrigado.
I saw a recent discovery of a stator blades used in conjunction with a propeller (iso a contra rotating one). If you made such a setup it would be cool to see if you could compare results with the above.
Thank you for your comment, I will take it into account.😄
Amazing.
Thank you for your comment.😄
It would be very interesting to see this fly.
Thank you for your comment, please look forward to it.😄
Wow is that clever - and dangerous!
Thanks for your comment.
Sadly nothing was shown on the making of the rear reversing gearing, but a fantastic achievement
Thank you for your comment. I simply replaced the starter receiver for the helicopter engine with a gear.
@@ken23pSo, the rear belt is driving a gear connected to the inner shaft that drives the front prop. Am I understanding that correctly?
@@michaeljones1664 Yes, the gear from the crankshaft to the belt is 30% faster but slowed down by the front pulley.
Work of art¡
Thank you for your comment, it's encouraging.
Beautiful work. Would you consider selling this or constructing another for sale?
Thank you for your comment. I am making small improvements and testing it every day, and I would like to consider selling it if I am satisfied with it.
Nice engine
Thank you for your comment, encouraging.😄
仕上げがキレイですねぇ。
下のシャフトで反転&増速してますかね？
青い液体は何でしょう？
コメントありがとうございます。全体のシステム小さくするため30％増速、プロペラシャフトで30％減速、±0です。後部ギァ、ベアリング類潤滑グリスでは抵抗過多、油膜切防止で燃料で薄めたオイルを少量流しています。
Great machine work and project! What are you going to put it on?
Thanks for the comment, I haven't thought about it yet.😅
Would that gearbox set up work in an Electric Pusher configuration? Were the Belts difficult to source?
Thank you for your comment. I believe that if you design according to the output data of the target airplane's motor, you will definitely find something that fits.
I build running glow engine displays that are attractive to look at and run, and this is a beautiful piece.
Thank you for your comment. It's encouraging, and I hope you'll make something good too.😄
Outstanding! :o)
Thank you for your comment, it's encouraging.
Excellent work Whatcha gonna put it in? Hawker Harrier or a P-51
Thanks for your comment. Well, I'll think about it now.
😁
Heard of a lot of Swiss machine makers but not Wahli Freres. Apparently they mainly made grinding machines.
Thank you for your comment. This multi-purpose machine tool is no longer in production. In recent years, it seems that they have been producing small thread cutting machines, hobbing machines.
Masterpiece
Thanks for your comment.😄
Terjemahan Google. Saiki sampeyan kudu mbangun telu liyane lan Howard Hughes XF-11 kanggo dipasang ing. Proyek sing apik, seneng. Sugeng Rahayu lan Rahayu. Keith
Now you need to build three more and a Howard Hughes - The XF-11 to put them on. Nice job loved it. Best Wishes and Blessings. Keith
Matur nuwun kanggo komentar sampeyan. Kita rencana bakal terus nyoba macem-macem perkara, mula seneng.😄
Very nice bro 👍 congratulations ❤️ from india 🙏🙏
Thank you for your comment, it's encouraging.
Is the contra rotating prop design really more efficient? Does it produce more thrust?
Thank you for your comment. The explanation regarding the performance etc. of the contra rotating prop will be long, so please check the explanation site. Please note that we are currently researching the system used in this video, so we are unable to provide detailed information at this time.😅
the REAL test is to mount it to a pivoting mount and demonstrate that whilst contra-rotating does eliminate the helical airstream, and the gyroscopic forces, it actually INCREASES the torque reaction on the engine...
Thank you for your comment. Yes, that would be ideal, but since this system was an experimental operation, we discovered some unexpected problems, such as too much overall resistance, so we are already in the process of designing the next system. I would like to provide a numerical answer once the original ideal power has stabilized, so please look forward to it.😁
What is the smaller tank for? Lubricating oil for the gearbox?
Thank you for your comment. This is an oil tank to properly lubricate the gear box and bearings on opposite shafts. The lubricating oil mixed in the fuel cannot be circulated alone.
OK, so which plane do you plan to mount that engine into? BTW; you could,ve turned off the music so we could hear the engine but that's just me.
Thanks for your comment, this was created as an early experiment. Due to problems such as excessive weight and insufficient power, at this stage we have not even thought about putting it on the aircraft.😅
@@ken23p Thank you! I'm an old RC builder/pilot, and was in the hobby for about 10 years, (though I haven't built any in many years now). You may be surprised if you look into the large-scale RC aircraft hobbyists websites. Depending on the plane model, the 1/4 scale and even 1/2 scale builders may be very interested in buying this engine from you.
In fact, I don't know how much thrust your counter-rotating props and engine generate, but there are a significant number of hobbyists out there that build their own, personal, ultralight-powered aircraft and I'm sure would certainly be interested.
I still remember years back when I was at an RC airshow (around the early to mid 90's) and one of the big events at the time was a guy who flew in with a home-built aircraft. It was propelled with two RC JET engines, (not the ducted fan engines). The plane was a single-wing design and the engines were mounted directly to the wings, not the fuselage. The cockpit was functional but not enclosed, (...if I recall correctly).
This was incredible for the times because the RC jet engines had only become available to the public 1 or 2 years earlier. He purchased two of the largest jet engines available to consumers and back then, they were ridiculously expensive!
Anyway, the point is that these hobbyists are out there and I think you could sell that engine for at least twice what it cost you to build it, (by "costs" I mean it would also include the machine and build time).
You could even possibly get 3 times the ultimate costs if you install a variable pitch propeller system, (with the 6061 T6 aluminum props, of course). Then again, your engine is a beautiful piece of work and I could understand if you wouldn't want to part with it.
Rich
@@richpaul8132 I agree. The effectiveness of counter-rotation is greatly manifested in model airplanes by canceling out the gyro precession effect. Furthermore, it seems to have been proven that it eliminates air resistance and provides stable thrust. However, in this model, in addition to the mechanical resistance, it was found during test runs that the rotational resistance of the reversing propeller exceeded that of the forward rotating propeller. In other words, it can be determined that the engine is currently unable to reach the normal output according to the catalog data.If this is an electric motor, this can be easily resolved by increasing the battery voltage. It's hard to think about this problem with the engine type, but is it our mission as modelers to somehow solve these problems? I'll do my best to say that.😅
Nice work! Next step is make a pitching mechanism for prop blades.
Thank you for your comment, I'll do my best!😄
@@ken23p I have one question please, do you measured the thrust on that configuration, and with single prop?
@@valentinloginoff It is possible to achieve almost the expected rotation speed (10.000rpm) with a single propeller, but it seems that there is a lot of rotational resistance because it is coaxial.
Loved it but I sure would have liked to hear the engine once you started it.. the music is too loud. Beautiful to see though.... that must have been fun. I'd love to put that in a plane.
Thank you for your comment, it's encouraging.😁
This is a fun and interesting setup. However I have to ask. How practical is it? When if ever will we see it installed In and actually powering an actual RC Aircraft in flight? Or is this just going to be another interesting model engine that just sits on permanently display on a shelf and never actually sees flight?
Thank you for your comment. Well, of course it was created for practical use. However, the resistance of the system is greater than expected at the time of design, and currently only about 70% of the output catalog data has been confirmed.Furthermore, the overall weight is heavy, which will be a big problem if it is actually put on an airplane.However, It is currently being improved little by little. If we don't reach our expectations in the future, we may build a different system, but we're already in the next design stage.😅
Is the second petrol tank for methanol injection? Your design is amazing!
Thank you for your comment. The first tank is for oil to lubricate gears and bearings, and the top is for fuel alcohol.
EXCELENTE 👍👍 🇧🇷
Thank you for your comment, it's encouraging.😄
Just one question. At 6:10, do you need KNEE REPLACEMENT ? that hurts just looking at it !
Thank you for your comment. The tachometer sensor was wrong so I just replaced it.😅
Looks EXTREMELY heavy. Is this intended to be a practical solution or just a really neat example?
Thank you for your comment.Of course, we are reviewing the production of each part to make it lighter for practical use.
so cool 😀
thank you.
Amazing
Thank you, that's encouraging.😄
Excellent ... Excellent .... This is is called MECHANICAL ENGGINEERING ( ME ) , not the crap MEs are doing todays ...
One bad thing in this incredible job is Safety Measures !...
Thank you for your comment, I will use it for future reference.😅
Very nice engineerinh well done . Is there a Bugatti racing plane waiting for it?
Thank you for your comment, it's encouraging.
Would love to see that on a model of the Reno racer “ Precious Metal”.
Thank you for your comment. It's a wonderful airplane, and one of my favorites.😄
welldone,
thank you.😄
That's a beauty Sir ! Do you have a plane in mind for that ?
Thank you for your comment. We are currently considering this as we are not yet able to achieve satisfactory performance.
You did not show the gearbox itself, which converts left rotation of the crankshaft into right rotation. It is clear that it is located at the rear of the engine, the principle by which it is implemented is not shown in the video, although it is the main element of this design.
Thank you for your comment. Well, it's not a big deal, so I didn't intend to hide it too much, but I'm currently rebuilding it to make each part lighter, but there are many viewers who want to know more about the structure, so I'll explain the structure in the future. I'll show you.