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Awesome design with annoying music…..

Hay senin müziğine ...

I had an Enya .15 some time around 1975, started easily easy to adjust but weaker than cat pee. I also had an old Fox .15 that once I found the proper needle position started easily and ran fantastic. Then I bought a Cox conquest .15. Started easily ran like a demon. That engine was rated to produce almost 2 hp. It screamed.

Congratulations! But I wonder if there isn't a simpler solution for cooling family jewels? Enjoy research work and be safe! Btw, i came here from my wind turbines info inquiry and have the question: Was that sistem been checked at wind turbines already?

Too Cool for School!!! So, it's got a Glow Plug. I assume the Fuel has Some kind of oil mixed in? Essentially it's a 2 stroke Diesel, right?? Fuel is ignited via high compression! Just like those Cox & Testors micro engines from the 60s & 70s!! Way back in 1971, Testors, STP snd Coca-Cola were giving away Indy Style Cars with Glow Engines. All you had to do was send in a coupon from the bottom of a 6 pack Bottle holder for a chance to get one! I actually grabbed about 6 or 7 from a Trash Can in a park! I sent them in, separately of course....and I actually got one!! I already had a Cox 57 Chevy, so had the Battery & Glow Fuel!! It was a bit difficult, but I finally got it to start and run!!!

Very impressive. How about an estimated thrust output for this engine? Can you also provide an estimate for a much larger engine? Could certainly be beneficial to the industry if so.

You have mastered these small nitro engines and have done things with them that the people who originally designed them would be proud to see their engines capabilities when in your hands

That's EXACTLY what I was thinking ! You have sandals on, that slippery floor ??!!! That close to ?? Just like Pink Floyd says,, "one slip and down the hole we fall"... Great craftsmanship !! But BE CAREFUL !!!

You ruined your video by adding queer music! I clicked off of it after 10 seconds

Cool! So what are you going to put it in?😁

I know you call yourself being safe, I am a machinist too and have made many notable devices in my 40 years doing so BUT, Your safety adjustment needs some attention! The best of us can slip or at our age, have a nerve twitch that can cost you more than a missing finger!

実用面を考えると重量増加分に見合う推力が出るかが問題ですね

Loose the music!

First big model aircraft engine I owned, I put it on a control line Voodoo combat plane. Like to make my right arm about five inches longer!

Awsome design for a contra-rotating propeller system! In one of your comment replies, uou stated that it was suffering power loss. Have you taken into account that you're using the equivalent of a 4-blade propeller? Taking that into account, you might need to change the prop diameter and the prop pitch to get the equivalent power of a 2-blade prop.

Three more and you're on your way to creating a scale avro shackelton . Known later as a million rivets flying in close formation.

Once again, music ruins the video.

Filming a running aircraft engine with all the trip hazards and you with flip flops on not good. But an amazing job, congratulations on your success. Drop the music, let us hear it running.👍🏻👍🏻👍🏻

Super neat.

Ugh music! Otherwise, great project.

Второто витло увеличава мощността, но само ако се върти с по-висока скорост😊

Incredible workmanship. Are you going to put it in an airframe? Great job

Howard Hughes had this set up on his experimental X-F-111. During a test flight even when they re created it for the movie The Aviator with Leonardo DeCaprio. My guess loss of oil pressure or hydraulic. Or the whole engine went when she crashed into a subdivision. Too bad least build the model 70% size

What is the reason these are not on gyrocopter? It seems like very little weight to add for such an increase in thrust, it would also neutralize prop torque. Is there a reason?

I wouldn’t be sitting in front of any engine like that! Test bed “looked” secure but…

Прекрасная работа.

二重反転のプロペラ😮

Why not try getting right in front of the prop incase it comes off? And then try reaching around the deadly spinning blades with your bare hands and wrists to throttle it?

Great work. How does it work power to weight ratio?

SUPERB !!!!

absolut super

Some impressive design and engineering. To achieve vibration-free running with all that overhanging contra-rotating shaft is a measure of this fine work. Beautifully executed !

塩谷エンジン

Turn off stupid annoying irrelevant distraction pointless music and tell us.

c'est une de vos réalisation ou vous l'avez acheté ?

It is very nice. :)

Che may nay hay taa.cuc ky

music drives me crazy!!

Would sound better without the dumb music.

C'et un beau projet,je vous souhaite bon vols depuis la France👍

A world apart from the Cox 049 engine I had as boy !

Too complex and heavy. A planetary gear would do the same function

Votre chaine est vraiment intéressante , je vais m'abonner pour suivre la suite des travaux et il faut que je visionne les anciennes videos...Pour ce moteur vous pouvez commencer la commercialisation je pense... 😅👍 il faut juste modifier les engrenages plastique et les faire usiner dans de l'aluminium en CNC Your channel is really interesting, I will subscribe to follow the rest of the work and I have to watch the old videos...For this engine you can start marketing I think... you just have to modify the plastic gears and have them machined in aluminum in CNC

Why this design not use in boat, even double propeller is not available in market. Just wondering Why?

Wow! Good Idea. This is the mechanism I want and I really want to buy it.

Really nice job again! 👌

Hi, Ken, another great job and run looking good. 👍👍👍👍👍👍👍

beautiful work ....that propeller in the direction is very dangerous while you are sitting legs open ...

Once again a great video!, I have a question regarding the gears which is how do you make them? they look to be 3d printed, if made by hand how would you go about calculating the diameter needed to have the required tooth count? lastly is about lubrication, how would you go about lubricating the inner shaft as I assume it runs on bearings? Also something that might be worth considering for the sake of reliability is incorperating a thrust bearing between the rear propellor hub and the spur gear. Hope to see more as I'm certainly interested in doing something similar!

music ruined it