1/4 SCALE 9 CYLINDER 350cc BENTLEY BR2 ROTARY ENGINE - MIKE AT MAYFLY OLD WARDEN SHUTTLEWORTH - 2016

[@pajflynn]

Absolutely amazing 🤩 saw this in St Ives today and it’s an engineering masterpiece. 👍👍👌

[@tbobborap1]

Couldn't agree more!

[@trickywoo5165]

it’s also beautiful piece of art 🖼 engineering, steampunk 🚂 N my eyes 👌🏻

[@jonkje]

What a piece of art. Absolutely stunning!

[@tbobborap1]

+MJNL thanks

[@Mysterycat_-uu1mx]

AMAZING! THAT IS ABSOLUTELY INCREDIBLE! YOU ARE A TRUE MASTER, SIR!

[@RCScaleAirplanes]

Fantastic. What a great workmanship !

[@tbobborap1]

+RCScaleAirplanes thanks horst, hope alls well after your trip to joe nall ? - pete,

[@ColeAviation]

WOW!!!! What BEAUTIFUL piece of work! Great job behind the camera my friend!!! Horst will love this one. 😉👍🏼

[@tbobborap1]

+Chad Cole thanks chad

[@bernardw4842]

To me this is as beautiful as the statue of David. Absolutely superb! Congratulations. I would love to see a video of this engine running but recorded with better audio - the built-in camera microphone just doesn't do it justice and I'll bet it sounds lovely.

[@dumpsmokes4388]

Corrrr! What a beauty! Credits to the Micheal for the building. As always awesome footage Pete, Cheers, A

[@wwjoesr]

Amazing piece of work!!! Love the sound. Thanks for sharing

[@tbobborap1]

+JLW thanks

[@InTheDogHouse3DPrinting]

What amazes me is how these type of engines in full scale planes kept lubricated. One would think with the entire engine spinning it would throw the oil to the top of the cylinders, and heads, and smoke like crazy. They must of had one heck of an oiling system on them.

[@InTheDogHouse3DPrinting]

@Possumlove Okay, thanks for pointing that out. I was wondering how they stayed lubed.

[@MUSTASCH1O]

This is aewsome I've never come across this kind of engine before! How inventive!

[@Spawn-td8bf]

I remember when I saw my first Gnome radial at Fantasy of Flight , I thought , with all that spinning mass and the centrifugal force , how does the oil not pool in the cylinder heads ? Must be some kind of pump and plumbing system . Saw this gentleman's other engines . A master craftsman at it's finest . Thanks for the great video work as usual and God Bless .

[@tbobborap1]

thanks paul, not sure about the oil !

[@aryanson]

Even though these are 4 cycle engines, castor oil is mixed with fuel like a two stroke. That is why WWI pilots wore scarves, to wipe the oil from the exhaust from their goggles

[@nigel900]

They pre-oiled each cylinder head with castor before takeoff.

[@nigel900]

Makes sense.

[@KathrynLiz1]

That's a stunning piece of work.... well done...

[@tbobborap1]

Thank you! Cheers!

[@tbobborap1]

check these videos out Kathryn - kzbin.info/www/bejne/i6TcmYKah72mhqM

[@K1To749]

Glorious engine.Would like to attach one to my smaller hot air balloon with a redrive in pusher configuration just to pull clear from obstacles in zero airspeed.Lovely engineering.

[@andersjonsson7218]

Fantastic engine I could have it in the living room, in the place of honor

[@tbobborap1]

thanks anders - check out our playlist with 8 more home made engines - kzbin.info/www/bejne/i6TcmYKah72mhqM

[@robertmarsh3588]

Wow, what fabulous workmanship. Would love to see a modern rotary engine powering an aircraft..

[@tbobborap1]

glad you liked it rob, check out our 8 video playlist of rc aero engines here - kzbin.info/www/bejne/i6TcmYKah72mhqM

[@mattscrane]

Bloody work of Art, that is!

[@johnkinnane547]

G'day Pete I know that I am stating the obvious, but what a beautiful piece of engineering, thanks Pete regards John

[@tbobborap1]

+John Kinnane thanks john, gorgeous model,

[@shauntenny8191]

Beautiful work! Is there any way I can contact Mike? My father has built the same 1/4 scale but is having issues with valve timing. Was wondering if Mike had similar issues or not. The build is from the L.K. Blackmore book. Cheers.

[@didierneeferc]

Love star engines! What a good sound the rotary engines are awesome!

[@tbobborap1]

+djRC thanks dj

[@didierneeferc]

@Joe Misogino wtf are you talking about LOL

[@TriBui-m5r]

Nay la cuoc thi phai khong.hay that.nhung co may qua tuyet.

[@jonathanj.7344]

Amazing. All those cylinder heads spinning round!

[@tbobborap1]

awesome engineering jon

[@sawdust9929]

Plans are available for a Bentley BR-2 rotary from Ageless Engines

[@dementia0090]

That is so cool. What a grand collection. If I could sale my house I could buy a few these engines! Thanks Dick.

[@malcolmbeecher8378]

should be proud of his hard work ..... amazing

[@tbobborap1]

+Malcolm Beecher thanks

[@rattywoof5259]

With the whole engine as well as the prop rotating, the gyroscopic effect of that huge spinning mass must have made the aircraft an absolute sod to fly! How could you persuade it to change direction when the whole front end is essentially a huge gyro 'stabiliser'?

[@JrGoonior]

From what I've read, The Sopwith Camel had just that problem it was difficult to roll against the rotation and easy the opposite direction...

[@thosoz3431]

One of the main reasons they moved away from rotating radial engines pretty quick.

[@etma01]

absolutely wonderful!

[@tbobborap1]

+etma01 thanks

[@McLambo]

black and decker workmate, now there is a fine piece of equipment

[@tbobborap1]

+McLambo KZbin lmao

[@stubenshoof4785]

Whatever works mate! lol

[@tbobborap1]

Stu Benshoof lmao

[@mauriceupton1474]

Mate what a beauty! But shame the camera couldn't capture it properly

[@EllDub]

Do you have any videos of his other engines? I've seen the Gipsy one, but I noticed a couple more rotaries :)

[@tbobborap1]

PLEASE LIKE US ON FACEBOOK AND SUBSCRIBE TO OUR CHANNEL TBOBBORAP1 AND FOLLOW US ON TWITTER NOW AND KEEP UP TO DATE AND WATCH OUR HD QUALITY RC MODELS VIDEOS AND PICTURE UPDATES OF THE MAJOR UK RC SHOWS AND CLUB FLY-INS AT - facebook.com/pages/Tbobbo... twitter.com/TBOBBORAP1 kzbin.info

[@florian224545]

Can you please tell me how to comtrol the speed of the engine since there is no carburettor and a throttle valve.

[@tbobborap1]

good question victor, I never asked but im guessing through ignition advance and retard and I know on the real engine / aircraft they controlled the engine speed simply by switching the ignition on and off to keep the rpm under control, leave the switch on and full power to take off and climb then to slow down and cruise keep switching on and off - crazy hey especially if in formation with other aircraft !

[@billflynn6903]

I just imagine balancing the combination of prop and motor and my mind thinks Russian. I know it's Bentley, but ..... Impressive work!! And Happy for Motor Mounts!!

[@tbobborap1]

+Bill Flynn thanks bill

[@tbobborap1]

CHECK OUT OUR TWO VIDEOS OF ANOTHER 1/4 SCALE BENTLEY FLYING IN A 1/4 SCALE AVRO 504 - kzbin.info/www/bejne/h6Cmm6WlZpaNh5I kzbin.info/www/bejne/oJLKaaKrqt56kJI

[@paullubliner6221]

IF you'd have built a 1/4 scale LeRhone 9C, I'd pay that price you'd mentioned.

[@paradisemace1]

Engine receives air/fuel mixture through a hollow crankshaft ???

[@williammoses6232]

yes

[@DiscoverRC]

that is awesome!

[@tbobborap1]

+Discover RC thanks

[@pauls.2526]

Magic

[@tbobborap1]

thanks

[@haveric24]

Nice bit of kit....some work had to go into that

[@tbobborap1]

+hav eric thanks eric, all info in the description box,

[@Booger7563]

Wow!

[@tbobborap1]

check out another 7 videos here booger - kzbin.info/www/bejne/i6TcmYKah72mhqM

[@spacebutter2062]

Now i know what to put in my Large scale Bi-plane ;o

[@billshepard2502]

Beautiful engine, but I didn’t realize the cylinders spun along with the propeller!

[@tbobborap1]

+Bill Shepard thanks bill, yes the prop is bolted onto the engine and the engine rotates around the crankshaft !

[@thosoz3431]

The early ones did. Later versions did not.

[@AlfredHoudijk]

Beautiful piece of work. On a side note: I would not stand so close to the unsafe end of the propeller like these people in the audience do. At least a fence in between would make me feel a lot safer. Just saying.

[@tbobborap1]

+Alfred Houdijk thanks for the sound advice alfred

[@Marc-hp3ne]

why do the cylinders turn with the prop?

[@tbobborap1]

its designed that way to cool the cylinders more efficiently !

[@Marc-hp3ne]

Awesome. First time i ever seen this. But the prop creates hectic wind does it not?

[@williammoses6232]

the propeller is bolted to the engine crank case. the crank shaft is bolted to the air frame and is stationary. the engine crank case, the cylinders, and the propeller, all rotate around the stationary crank shaft as you see in the film. this is why this type of engine is called a rotary engine. the crank shaft doesn't spin,,,, the entire engine dose

[@thetezz0001]

call me stupid but why does the cylinders turn with the blade ?

[@stoves92]

+TheTezla69 to cool the engine.

[@thetezz0001]

good idea but dose it not lose power as it is using its momentum instead of turning the blade ?

[@stoves92]

The engine spins around the crankshaft. The prop is fixed to the engine. They turn at the same speed so it doesn't lose power.

[@thetezz0001]

wow that is great i wonder how the fuel gets in the cylinders

[@thetezz0001]

amazing

[@lizfernandez2132]

😀😀😁

[@jfingerskeys]

saweeeeeet motor not made for a model though?

[@tbobborap1]

+jfingerskeys oh yes it is ! check these out - kzbin.info/www/bejne/h6Cmm6WlZpaNh5I kzbin.info/www/bejne/oJLKaaKrqt56kJI

[@jfingerskeys]

oh ok sweet

[@tbobborap1]

+jfingerskeys thanks

[@jimmassey6192]

Awesome engine, a work of art. Safety factor zero. not only is it in the pits , but it is facing the parking lot. And idiots are standing in front of the engine. Need a little common sense.

[@villiers1]

I've got one for sale ....

[@P61guy61]

Sunning.

[@tbobborap1]

+William Haley thanks

[@jasonwills1116]

Itwouldbesoeasytoreachthrough, that, prop, you’d,only, do it,once.

[@lalherlian9382]

wood

[@bitemykrank1970]

This man is SERIOUSLY underpaying himself.....willing to sell this for £15,000. That's about $26,770AUD at current market rates. For 18 months work, that's only £1.14 ($2.04AUD) per hour......that's SLAVE WAGES.......and it's still WAY MORE than I could afford......I'll just watch it, listen to it, envy it and drool instead....

[@tbobborap1]

cheers krank

[@thosoz3431]

It's not the money.....all those hours of serenity....

[@somponk2010]

This isa radial engine

[@453421abcdefg12345]

Somponk Tongsuk: No ,it is a rotary engine, the Wankel,which you probably think is a rotary, is not a rotary at all. So you may learn something here, this is a rotary engine.