① RC 1/4 SCALE 9 CYLINDER BENTLEY ROTARY ENGINE AVRO 504K LMA MODEL AIRCRAFT SHOW RAF COSFORD - 2013

(PART ONE OF TWO)
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CLICK HERE TO SEE PART TWO OF THIS AMAZING MODEL FLYING POWERED BY THE BENTLEY -
• ② RC 1/4 SCALE 9 CYLIN...
ian redshaw flew the avro 504 in the video ,the builder and owner andy johnston kindly gave me these details -
Engine details:
¼ scale
9 cylinder four stroke
33mm bore, cast iron liners of 1mm wall thickness and aluminium finned barrels
45mm stroke
347cc, compression ratio 5.6:1
Super unleaded petrol with belts'n'braces 50:1 oil mix. (I use Bel-Ray HR1 fully synthetic ester 2-stroke racing oil.)
Total loss force fed oil system via engine driven oil pump, approx. 30cc per 10 min flight using Bel-Ray
Rpm range 700-3500
Prop. is 27 ½" diameter x approx. 23" pitch, period scale blade shape made by EAT propellers, sadly now no longer since the death of Eric Thomas.
Weight 7kg
Avro 504K details:
¼ scale David Boddington/Nexus plans scaled up to 27% (to give sufficient cowl clearance for engine)
Wingspan 116", 2.95m
O/A length 100", 2.54m
Covered in Linen Solartex, top surfaces sprayed with Flair Spectrum PC 10 Brown
All markings freehand with Humbrol
Two coats Ronseal Diamond Hard Matt varnish brushed on all over (isn't affected by oil/petrol or nitro glow fuel )
All up weight 23kg
Futaba 12FG TX 2.4Gig
Futaba R-6014 HS RX x 2
SM Services Opto Isolators x 2
Ignition and RX batteries 2000mAhr Eneloop
Power to servos 3,300 NmH subC via opto isolators
Servos are a mix of Hitec metal geared and Futaba, all non-digital
16 ferrite rings to combat the interference from the unshielded vintage ignition system
The Avro was designed around the Bentley with the provision for exchanging it for a Zenoah 62. The Avro's maiden flight was on 31st March 2012 with the 62 (and 3kg lead up front, the difference in weight between it and the Bentley) to prove the airframe and it was a great success so a further six flights were made to complete the CAA tests on that day before making the swap and further tests.
The Bentley engine build started in August 2004, it's test run was 9th January 2008 and the maiden flight in the Avro was 6th April 2012.
There are no noticeable effects of gyroscopic precession from the rotating Bentley affecting the handling unduly, just a slight difference in left and right which may be due to torque and the coarse-pitch propeller. Twenty-two flights with Bentley to date (23/07/2013).
Regards
Andy Johnston
FILMED AT AN RC MODEL AIRCRAFT SHOW RUN BY THE LMA ( LARGE MODEL ASSOCIATION ) AT RAF COSFORD - WOLVERHAMPTON - SHROPSHIRE / STAFFORDSHIRE - WV7 3EX OVER THE WEEKEND OF 20th & 21st JULY - 2013,

[@locowerke]

Wow! First time I have seen anyone actually fly their miniature rotary engine. I have only ever seen them running on a stand, which is amazing enough, but to see one actually flying an equally amazing scale aircraft is a double treat!! Thanks for posting this video.

[@shyannehoffman1061]

without a doubt one of the nicest scale models in the world.

[@tbobborap1]

thanks mark, i was lucky to film her, glad everyone likes the vid - pete,

[@livinabox925]

As an engineer myself i cannot get over the skill and dedication of some one who builds some thing like this. doesnt it sound the business. you have to have a certain way of thinking in this way to create such a work piece!....caps on, HATS OFF TO YOU SIR!

[@rcglitch7990]

I was there at Cosford on Saturday. This plane for me was easily the most magnificent one there and then (no offence to other modellers out there!). And Andy, the owner, what a character! He saw me and my friend "drooling" over his plane, so he and his friends kindly let us cross the fence to have a closer look at his plane and we spent good 20min talking to him and his friends about his masterpiece. And boy, what a masterpiece that is!

[@davidwright7320]

That is truly magnificent and a great achievement.

[@colingilbey9799]

The detail and quality of the 504 look to be superb. Congratulations to builders.

[@HyperJoe]

Never ceases too amaze Me, the talent, and the care of RC Scale Builders..Great Job! :)

[@gogogeedus]

I couldn't imagine the amount of work that has gone into producing this aircraft, superb and nicely flown.

[@stevenleach9522]

That aircraft & powerplant is the most realitic I have ever seen & I am 68 years old. When this aircraft is retired from flying - it shoud be deplayed in a museum. Bravo!

[@tbobborap1]

thanks steve

[@tbobborap1]

check out our playlist of rc aero engines here steve - kzbin.info/www/bejne/i6TcmYKah72mhqM

[@stevenleach9522]

@@tbobborap1 Cool - I know, I am showing my age again.

[@EleanorPeterson]

Astonishing, and that glorious engine sound is absolutely, completely 100% authentic. I'm writing this Comment just a few days before Armistice Day, so please remember to spare a thought for those poor blighters in the trenches...

[@tbobborap1]

thanks emil your comments are much appreciated, your right we live in amazing times, who would ever have thought you could share these amazing images with everyone around the world ! regards pete,

[@AllanPerkins-e4k]

A beautiful aeroplane, well flown. An engineering masterpiece, fantastic close-up photography. A joy to watch!

[@tbobborap1]

many thanks

[@AlanpittsS2b]

Is this a custom built one off engine? It is incredible. I have moki radials on some of my planes and love them but always wanted a real rotary for my giant scale pup

[@johnparr5879]

Absolutely stunning.......Great craftsmanship a simply beautiful scale aircraft *

[@Ethercruiser1]

Wow! 3 years to make the engine & 2 years to make the plane. I've seen one or two of these full sized WWI planes flown in the past but never as a RC model before. Nice flying with some aerobatics & landings including one "touch & go".

[@bernardw4842]

Truly fantastic work. I'd seen the engine in another video, and as if that weren't enough, this model truly does it justice. I can only shake my head in wonder. Beautiful!

[@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/TBOBBORAP1kzbin.info

[@aeroglow]

We saw Andy's engine and plane last sunday at Warden Park. Awesome both. Andy answered all Our questions. Thanks

[@mylesjarvis7571]

The workmanship here is museum quality. Simply outstanding!!

[@terencehurford4430]

Nice to meet you at Much Marcle Andy! Both the engine and plane are amazing achievements.

[@bobsage4963]

Wow. Just... wow. That is a thing of beauty (Nice flying, too!)

[@tbobborap1]

Thanks a lot!

[@midlandsroylenfield]

am totally impressed by all aspects including great flying. such a feat of engineering. you deserve awards for this!!!!

[@tbobborap1]

thanks

[@berniepowell720]

What can i say ?Fantastic,Brilliant congratulations on a superb job.I could almost see Dauglas Bader sitting in the rear seat when he was a cadet at Cranwell.

[@RCScaleAirplanes]

5 years is a very long time, but the result is awesome !!! I'm looking forward to your next video of this jewelery. Best regards, Horst

[@tbobborap1]

hi horst, can you believe it took nearly five years to complete - amazing! when i get some info from the builder i will upload it, hope to film her again at the english nationals at barkston heath in august ! thanks for your comments m8 - pete,

[@tbobborap1]

hi valic000, many thanks for your comments theyre much appreciated, i was very lucky to have filmed the avro and glad i can share it with everyone - regards pete & dean,

[@SwitchRod]

Mesmerizing and beautiful! Truly...a piece of art. I am humbled by the craftsmanship and persistence; but thankful for the "artists."

[@grumpyboomer61]

I wasn't expecting it to be an old school rotary engine. Magnificent piece of workmanship. 👍👍

[@tbobborap1]

CLICK HERE TO SEE PART TWO OF THIS AMAZING MODEL FLYING POWERED BY THE BENTLEY - kzbin.info/www/bejne/oJLKaaKrqt56kJI

[@PeterPasieka]

The craftsmanship on this model is unbelievable!

[@DINOSFARMERBALANOS]

Many congrats to the plane builder........ Many congrats to the engine builder....... And last but not least , many congrats to the pilot..... When most of the pilots would not fly this plane, in a such windy day, he flies her in an awesome way....... Greetings from GREECE THANK YOU VERY MUCH FOR SHARING

[@randyneighbour]

now that is flying art.. what a beautiful motor and plane. that is a very skilled builder.. thanks greatly for shareing

[@skooter2767k]

Fantastic building and flying!! Very VERY cool!!

[@avipatable]

What a beautiful engine and model! Magnificent! What a clever chap. Thanks for sharing!

[@valic000]

AWESOME!!!!!!!! It not only looks absolut fantastik (al of it!!) ...But sound even really like the real thing..Some vids here on youtube are very inspireing...I am just out of words..A golden thumb up!!

[@yacawntmiss]

Beautiful tribute to a remarkable period in aviation.

[@andrewnielsen3178]

That's just magnificent. Not a subject that's made as a scale model often.

[@tbobborap1]

thanks Andrew - take a look at part two if you like

[@bobdyer422]

If it wasn't for the full scale humans, you'd swear that was Rhinebeck's Avro flying around .Their Avro doesn't do aerobatics though. Beautiful plane thanks for posting the vid.

[@RCScaleAirplanes]

I am speechless. I have never seen before such a beautiful and interesting model. Maybe I should even go to the WWI biplane meeting for filming. Please add some technical details in the video description!!! Unfortunately there was a heavy wind, which taked away the good sound in flight. As well as too many other running engines on ground and in the air. Maybe you will have another chance to shoot some images of that beauty. *liked and added to my new created playlist of WWI* Best regards, Horst

[@RBAERO]

Beautiful, beautiful. A master piece! Congratulations

[@chgr7025]

Absolutely amazing!

[@MrJaapioo]

A great model with an amazing engine!

[@306champion]

I takes me hat off to the builder, brilliant. bloody briliant

[@peteacher52]

Bravo! This model is a triumph of imagination and engineering.

[@greggarnoldsaerials9673]

The engine looks well balanced. Nice job and nice flying.

[@tbobborap1]

hi 3FLYTE, cant believe it took him nearly 5 yrs to build her ! pete.

[@cathleenberreie9768]

I am amazed at the detail and skills involved....just awesome....thanks for sharing!!!

[@rscarawa]

Just one word. Awesome. Nice build.

[@leestallings9218]

What a craftsman!! Very nice.

[@tbobborap1]

Thank you very much!

[@gryfandjane]

What an extraordinary piece of craftsmanship.

[@tbobborap1]

thanks gryf - have you seen part two yet ?

[@gryfandjane]

Nope... going there now. Thanks!

[@mikecongardi1092]

that plane is a work of art simply outstanding

[@seebeck911]

so cool. this is amazing for someone to spend so much effort to reproduce this engine.

[@yahatinda]

It flies through the air with the greatest of ease...........

[@endwood]

That is the most amazing thing I have seen yet! Master craftsman:-)

[@ejwec]

Amazing...most beautiful scale airplane I have ever seen.

[@robcrawford9657]

Just like the full size rotary,amazing!!!

[@phil123711]

Nice video. Thanks for posting.

[@turboslag]

Wow! Aero modelling has changed a bit since I last dabbled as a schoolboy!

[@babtist58]

One word - stunning!

[@Progneto]

It's a REAL rotary engine! Totally awesome!

[@Engflyer1]

Hi Pete I can't believe this has passed the 50,000 mark. Word really must have got around. The construction of the Bentley in now being serialised in Engineering in Miniature magazine and Part 1 is in the current issue. I hope I'm allowed to mention this!!! This year it will be back at Cosford, Stow Maries and Old Warden. Thank you for making such a presentable video. Andy J

[@tbobborap1]

hi andy, and a well deserved accolade to a very talented man and engineer my friend, as soon as i saw you push her out and realized she was a flying rotary i just knew she had to be filmed, cant wait to see her at the shows again (and you of course - lol) best regards pete,

[@simonwass]

Nice set of articles it was too, my father is building one, started many years ago when the book 1st appeared in the Camden book. I have vivid memories of hand sawing the crankcase slice off a length of bar!

[@CafeenMan]

It's funny seeing the whole plane torque over when the engine gets revved. Great sounding engine!

[@Larry-ct5mg]

Beautiful work.

[@johnkinnane547]

G’day greetings from Tasmania what an absolute work of art, terrific machining ect thank you for filming it John PS I forgot to tell you you do a great job of the filming well done I know it’s not easy.

[@tbobborap1]

wow - Tasmania, youtube never fails to amaze me john, im conversing with a total stranger on the other side of the world - brilliant,

[@spocktra50]

Brilliant,one of the most interesting models i have seen .Great work Pete.

[@oilsmokejones3452]

That's dedication..very realistic looking flight also..

[@grumpyboomer61]

That is insanely impressive on every level.

[@tbobborap1]

thanks, check her out again here - kzbin.info/www/bejne/oJLKaaKrqt56kJI

[@tbobborap1]

check out our playlist of other rotary engines if you like - kzbin.info/www/bejne/i6TcmYKah72mhqM

[@3ducs]

Fantastic work here. Artisans are creating beautiful odes to past eras. I'd like to see in plane cameras whilst in flight, pilot's eye views. A camera mounted in the model pilot's head, swiveling, would be a unique perspective.

[@cmsracing]

That sir, is a piece of art!

[@tbobborap1]

hi runningwolfkenpo i think that because the avro 504 was essentially a training aircraft the skid was put there to stop the students from nosing over and damaging the propeller if they had any dodgey landings etc, im sure someone will put me right if im wrong - lol. regards pete,

[@bootlegger2365]

Very nice machine work

[@mikew3232]

Stunning engine, it looks and runs brilliant, equally as well as the Avro 504. I'm disappointed why there's dislikes to the video.

[@marvinblankinchip2535]

Mike W ... They haven't a clue what is involved in this type of craftsmanship. This piece is just perfect.

[@collinwood6496]

Mike W it was a woman that disliked it.

[@carlbobrow2453]

Outstanding... brilliant is often overused but not in this instance...

[@tbobborap1]

thanks carl, check out part 2 here - kzbin.info/www/bejne/oJLKaaKrqt56kJI

[@yahatinda]

I love planes that fly on the wing.... You know exactly what I mean . Wondrful to watch it fly .I hope it gets to a museum or some place of honor.

[@radamus210]

That's a jaw dropper in every way.

[@ernied349]

One heck of a craft, must have a huge project for the engine With the time into the engine along this plane should be RC scale of the year.

[@RCFlyingDoc]

Model und Motor : glänzend gebaut ; Respekt - Respekt

[@claudiom170]

basta una sola parola:STUPENDO

[@AirJimInCT]

I never thought an rc aircraft could have a real rotary engine on it. It sounds very good although I think it would be very inefficient. Thanks for the vid Horst.

[@AirJimInCT]

I'm sorry I thought this video was made by rcscaleairplanes. I am terribly sorry.

[@tbobborap1]

James Fieweger hi james not a problem, after having met horst recently and spending two days filming at a show with him (smashing guy) im quite flattered to be put in the same category as horst - pete,

[@AirJimInCT]

Thank you for understanding. Whenever I need a video that shows the utmost realism in rc development I come to you guys because you cannot be beat. As a man (or young man) of rc myself I have the highest respect for the cameramen on the sidelines so keep up the good work. I'd love to keep typing but it's four in the morning here. Thanks again. Sincerely, James Fieweger

[@tbobborap1]

James Fieweger many thanks james, perhaps you should subscribe and get regular vids from dean and i regards pete,

[@AirJimInCT]

I already have. Thanks for the hospitality. James

[@Landotter1]

Stunning!!! Kudos!

[@Timurlane100]

Beautiful model!

[@whalesong999]

Must mention the piloting is very good too. This fellow knows how to use rudder!

[@williammann6198]

Excellent Engineering!

[@bobeden5027]

Amazing craftsmanship!

[@dallesamllhals9161]

6:29 Aaaw look an Avro onna leash 🙂

[@youtwoba]

This is ridiculously cool and amazing! You couldn't ask for more scale could you? Thanks for sharing!

[@jaymillwall]

A stunning model!

[@aerografixs]

Its amazing that two identical airplanes and engines of the exact same size were made on both side of the Atlantic, the other one in New York state, and I was blessed to have seen it , I would have sworn it is the same one that got sold to this gentleman in Europe, but who knows

[@monsterg4603]

Simply Beautiful

[@tbobborap1]

Thank you! 😊

[@tbobborap1]

hi aeronca, it says in the description its a 25% plan scaled up to 27% for clearance around the cowl ! regards pete,

[@jollyroger1009]

Outstanding, both plane and engine. If I understood it right, it sounded like he made the engine himself as well. Amazing.

[@tbobborap1]

yes he did, he also built the model as well rawiri, read the video description for all the details,

[@tbobborap1]

CLICK HERE TO SEE PART TWO OF THIS AMAZING MODEL FLYING POWERED BY THE BENTLEY - kzbin.info/www/bejne/oJLKaaKrqt56kJI

[@jollyroger1009]

Ok. So to repeat the point, great job on both.

[@rugtvedt72]

Nice video 😀

[@tbobborap1]

Thanks for the visit

[@maurohenriquerodriguesdasi261]

Parabens, espetacular,fantástico......um grande abraço do Brasil.

[@vector409]

wonderful model!

[@tbobborap1]

it sure is bob, i nearly creamed my pants when it first run up - lol, i was so lucky to be in the right place at the right time, im glad i captured her on vid ! pete.

[@stevelamperta865]

the crankshaft bolts to the plane solid. the crank an pistons dont spin the rest of the motor does !....crazy but it works !

[@ioannisbatas1614]

Superb !!!

[@tbobborap1]

Thank you! Cheers!

[@sdbubs]

BEAUTIFUL!

[@Brian136]

this thing is awesome 9 cylinders giving meaning to balance and power") cool stuff here...

[@ronaldgoodrich2132]

working on 1913 Eicht toube nice to see someone else with that attention to detail