Rolls Royce V12 27litre Merlin engine PV12 FULL THROTTLE!

For all you big engine lovers out there!

[@PervertedThang]

What I love about this, and how people talk about the "inefficiencies" of engines like this and how we can pull power out of much smaller engines, is the fact that we went from 1903, flying 120' at less than 10 mph, to 40 years later flying 440 mph at altitudes of 45,000 feet. Those were some brilliant engineers and exceptional pilots.

[@annickchaste7561]

Robert Destree bbbbbbbb b

[@yamahabradley]

The problem here is that people relate car engines with aircraft engines which have a totally different design parameter. Car engines deliver 10-20% of their power and on occasion 90 to 100% in very short bursts. Aircraft engines are always pumping out 80 to 100% of their power all the time.

[@Karibanu]

Not just that, the internal combustion engine itself wasn't that old in the late 1930s. What's mostly improved is manufacturing tolerances, don't forget this engine is basically hand built in a hurry. What amazes me is late 1890s for the first human heavier than air flights, to researching practical supersonic aircraft in the late 1930s!

[@shugo541]

soaringtractor nah not at all. Not even the STEN...

[@SvenTviking]

The only thing that isn’t modern is that is hasn’t got mapped electronic ignition and injection. It’s overhead Cam with four valves per cylinder.

[@ctvxl]

What a beautiful and amazing machine. Antiquated, but still very impressive to this day, and I suspect people would say the same 100+ years from now...

[@MostlyPennyCat]

Compression ratios, they're double what the Merlin could do in your everyday car. Increases power and efficiency, I guess modern alloys are the key? That and 100 years of people trying to solve the same problems. 6:1 on the Merlin, which means the open size of the cylinder is six times the size when it's closed up at the top. Without the right design, a high compression ratio detonates the petrol air mix before the spark plug can ignite it and that is _very_ bad for your engine. It pushes DOWN on the piston while it's still going UP 😬😬 🛩️💥🪂

[@rosiehawtrey]

Puts less power out per litre than my Wolseley Landcrab mod.H and the Triumph Vitesse.

[@MattBlack6]

​@@rosiehawtrey they ended up putting out 55kW per litre. That's within 75% or better compared to modern 2023 standards.

[@betafoofoo270]

but neither of which make a sound that comes close to this wonderful engine

[@mcpaplus]

The Merlin from WWII and the Huey from Nam. Two of the most beautiful sounds ever.

[@jeffreypinder9398]

That Sir, is a fact!

[@OverwatchExtractor]

I couldn't imagine the power one of these would have produced running on 150 octane. One seriously beautiful piece of engineering that powered those Spitfire Mk. IXs and later variants. The Griffon engines are just as incredible. It's awesome to see pieces of history being kept alive and in running order like this.

[@KitKitChanIsaac]

Imagine the power Merlins would make when updated with modern technology.

[@wilburfinnigan2142]

The engine pictured is an early 20 series single stage supercharged version the most common model used during the war,, ie 3 bladed Prop. This engine never went in a Mk IX shitfire, 60 series used in Mk IX used a 4 bladed prop and the 2 stage supercharger, this engine used in like shitfire Mk V or Lancasters aor hurrycanes, or early mossies !!! sorry but the merlin using 150 octane could NOT take the boost to take advantage of the octane !!

[@mattheweagle223]

​@@wilburfinnigan2142I'd take your word if you spoke like an adult

[@mattheweagle223]

Imagine some nitromethane

[@user-vn6vx6rf7d]

1.) It's SPITFIRE. 2.) That's a demo prop only. @@wilburfinnigan2142 3.) Octane is mute, and totally depends on boost level, temp, and combustion chamber design.

[@muppetrowlf1473]

Because us Brits were in such a rush to build them, the early batches of engines had a common fault in that the bevel gear/skew gear arrangement that drove the camshafts would shear off and instantly stop the engine. This required the pilot to spend a few seconds looking for somewhere to crash. Spitfires were built at a shadow factory in Castle Bromwhich, Birmingham by Vickers. The aerodrome opposite was used for test flights and to ferry them to the various Squadrons. Any re work required was done at RAF Cosford a few miles North of Birmingham. One one flight the camshaft drive failed and the pilot crashed into a row of houses in Willenhall. The Merlin engine was recovered in pieces from the Kitchen. The test pilot was lucky to survive. He named his memoirs from the sound the Merlin made as the camshaft drive broke and stopped the engine: Sigh For A Merlin. And it’s one of the best aviation books I’ve ever read. Today Vickers Castle Bromwich is now a vast Jaguar car plant. The aerodrome is a huge council housing estate and RAF Cosford is a lovely free museum.

[@tunwicks]

What an amazing engine! Imagine what an entire squadron must have sounded like overhead.

[@NickRowsell]

Proud as fuck

[@stevey2070]

My dad saw and heard the Lancaster squadrons fly over when he was a kid near Doncaster in the war. It still makes his eyes tear up to think about it. He says it's an unmistakable noise..

[@AtticusAureliusTrottimus]

It sounded like the fury of Britain in all its glory. Then you thought, I'm sure glad those things are on our side...

[@malditaseaintensifies-kd8ec]

The sound struck fear into the hearts of the Nazis.

[@simone4993]

To the people in the crowd directly in line with the prop ..."Is the parking brake on"

[@Brian-wy7ts]

Yes, dangerous. It's not full throttle

[@Querencias7]

Indeed a beautiful beast. Terrific engineering, design and production. Masterful.

[@LASR71]

What an amazing piece of machinery! And to think they churned these out by huge quantities, with no time to spare. Beautiful thing to watch.

[@wilburfinnigan2142]

LASR71 And PACKARD in AMERICA made 55,525 and Ford UK made 33,000 thats 85,000 of the 150,000 total made RR themselves made less than 1/2of them !!!

[@BLACKDARK80]

Just for those who can't tell, the frame rate of the camera can't pick up the rotation of the blades, so it looks like it is barely moving, but it is spinning very fast.

[@bobjohnson1587]

No flies on you! :)

[@kenns9]

cant pick up?? if that was true, the blades would be a blur. (like they are when you see them in person.) the fact is is that the shutter speed of the camera is VERY FAST. and so you see the blades sometimes stand still.

[@someGuy-os3kg]

kenns9.

[@stalfithrildi]

You can tell from the reflections on the inside of the propellers too; when it looks immobile the reflections change in an inconsistent way

[@paulstevens9409]

Wouldn't wanna put yer fingers in it!

[@micheledibenedetto7780]

Not just a work of art a national treasure and the true spirit of a free and proud Britain

[@drd6416]

I wanna own a spitfire and call her "spirit of Brexit" for those very reasons

[@micheledibenedetto7780]

Garry Mills the story of the spitfire designer is just astounding , it touches your soul , it saved millions of souls

[@wilburfinnigan2142]

Michele Di What about the 55,523 of the Merlins PACKARD built in the USA of which the limeys got 37137 of them ?????

[@micheledibenedetto7780]

Wilbur Finnigan not just for limeys the allies were united to drive facism and evil tyranny from existence to horrendous cost

[@wilburfinnigan2142]

@@micheledibenedetto7780 The Brits did NOT do it on their own !!!! They had help !!!! Lots of help !!!!!!!M

[@VicaryCoMyjeGary]

Oh maaan, I just love huge, powerful pieces of machinery just working away.

[@atbien21]

For those that don't know; the prop is turning as fast as the engine. But it synchronizes with the frame rate speed of the camera taking the video. Which makes it appear at times to be still, or even going backwards.

[@Coltnz1]

Actually the Merlin turned over twice for every turn of the prop. 2:1 ratio.

[@johnyoung1128]

@@Coltnz1 Yes that was typical of the day, in order to make propellers that created more thrust they had to be made larger, the problem is a large prop can only be spun so fast, particularly for an aircraft flying at speed before its efficiency drops due to transonic flow at the tips.

[@Genius_at_Work]

@@johnyoung1128 Dunno about Air Propellers, but the Efficiency of Water Propellers increases at slow Speeds. That's why Marine Engine Development tries to increase Stroke Length as much as possible; current Engines have Stroke-Bore-Ratios of up to 5:1, to achieve Top Speeds of 70 RPM and less.

[@johnyoung1128]

@@Genius_at_Work Well that’s the difference between aerodynamics and hydrodynamics.

[@Genius_at_Work]

@@johnyoung1128 Air Propeller Tips usually get very close to Mach 1 don't they? That would have to be about 5 Times (300 odd m/s vs 500 odd m/s) as fast in Water, and even much slower Speeds would cause insane Levels of Cavitation.

[@shawnshaju9450]

That warping effect at 3:25 was awesome

[@Querencias7]

B E A U T I F U L machine of power, superb design! Memorable in war and peace. Thank you

[@coolbluelights]

I don't think that was full throttle.. if they really opened it up I don't think that little trailer would be able to hold it there.

[@emm789888]

coolbluelights exactly and also big puffs of smoke from a cylinder on the left side, I think the engine is a bit damaged.

[@joshuarosen6242]

coolbluelights That's exactly what I thought. An engine like this can power a fair sized aeroplane. Surely it could pull a little trailer like this forwards, even if it were strapped to the ground. I wouldn't particularly want to be standing in front of it just in case.

[@boltar2003]

Joshua Rosen Its a small prop. It wouldn't be able to absorb full power anyway within the engines safe rpm range.

[@AsbjornGrandt]

Joshua Rosen Also, at full throttle, the exhaust of the Merlin engines was supersonic. The angle of the exhaust increased the planes' top speed quite a bit if I recall.

[@FiveCentsPlease]

Joshua Rosen It's a cut down prop that won't generate as much thrust as a full size prop. And they wouldn't go full throttle without a full load on the engine, otherwise it will overspeed and be damaged or possibly come apart. Lastly, the engine, prop, and trailer are topping 2000 lbs and it would take a lot to move it.

[@clark6390]

This engine was detrimental during World War II! Something Great Britain should consider a National Treasure! And without it the Mustang would have never been so successful for us here in the USA!

[@HazBaz1234567]

clark plumb do you mean instrumental?

[@EightPawsProductionsHD]

@@HazBaz1234567 well it was detrimental to the enemy!!

[@HazBaz1234567]

EightPawsProductions you’re not wrong haha

[@wilburfinnigan2142]

clark6390 Ever single merlin engine used in a production Merlin Mustang was made in AMERICA by PACKARD !!! so what the hell is your point ????

[@clark6390]

@@wilburfinnigan2142 Packer got the license from rolls royce to build

[@jasonreedrn]

The stroboscopic effect is awesome on the propeller. It almost looks like you could reach in and grab one of the blades.

[@aldionsylkaj9654]

Love to think how much power this would make with modern ECUs and manufacturing.

[@eugenecrabs3954]

Carbureted engines have the most on-command power than a modern ecu. The modern ecu will "hunt" for a good mixture and setting, which makes response time slow. Carburetors work on-command, dumping in as much fuel as the operator pleases.

[@aldionsylkaj9654]

@@eugenecrabs3954 The p47 thunderbolt turbocharger was unresponsive at high alts too, but for 90% of the performance envelope i think it's a great trade-off

[@FullThrottleRacing535]

@@eugenecrabs3954 Modern fuel injection is much more precise than a carb

[@memorexkiller]

@@FullThrottleRacing535 Yes for course racing but for drag racing no, carbs all day for "drag racing".

[@tomjones7853]

Top fuel dragsters use carbs not efi

[@franciscodias1060]

The heart of P51 Mustang, Spitfire, Lancaster bomber and another one.

[@ianbrown9108]

Quite a few more actually, and the de-rated Merlin,known as the Meteor, powered the Cromwell tank among others.

[@grantw.whitwam9948]

Looks and sounds good. Amazing stroboscopic effect on the blade.

[@bdzelda5849]

Grant W. Whitwam always wondered what they called it! Cheers

[@timhallas4275]

@@bdzelda5849 I think the effect you are talking about occurs when the light source is flashing at a specific rate. What we are seeing here has to do with the camera's frame rate. You wouldn't see it if you were there.

[@diegoviniciomejiaquesada4754]

1430 HP of British pride.

[@CaptainCarling]

There's always one

[@jase6370]

@soaringtractor you really are an obnoxious twat

[@grassblade2]

...and a sad anorak.

[@grassblade2]

....oh....and in the Mother Country we fit Gentlemen into jalopies and fly off to bruise the filthy Hun. Powered by dirty bitches like this one.... " my dad's bigger than your dad"... "That's not what your mum says"!

[@jimgoodwin6294]

@soaringtractor Why is this necessary? Have to say I agree with jase6370.

[@romakayak]

thank you for your time and consideration for showing this great engine

[@sw74glssuperstar61]

beautiful piece of mechanical engineering from the past, this is on my wish list of I win the lottery xxx

[@keithlemon457]

The best aero-piston engine ever !

[@wilburfinnigan2142]

There were other engines more reliable and more powerful !!! ie PW R2800 Wright R2600

[@tommi9649]

A 0pinion,its like sshole.How about db 605....

[@pasodiufwen]

The fact that people are standing in front of that monster is incomprehensible. No doubt provisions were made to anchor the beast but.....things happen. Thank you for this vid. Fantastic.

[@harrothepilot]

They were indeed liquid cooled, generally around 35 - 50 % Ethylene Glycol with water.This mix would allow a higher boiling point ( along with a pressureized cooling system ) and thus a higher operating temperature ( more efficiency ). If you look closely on this display, you can see the radiator down between the rearmost pair of wheels on the trailer. Like most all liquid cooled aero engines, when on the ground, stationary, or slow taxiing would see them get pretty hot. Some of the early ( pre mk v ) Spits with single radiators could overheat when on the ground.

[@jammiedodger629]

question 8 years later and I hope you're doing well!! Were they supercharged or methanol water injected at all?. would this have an effect on then heat or operating temp of the engine?.

[@harrothepilot]

@@jammiedodger629 Hi Jammie Dodger, yes, they were supercharged. Most would have a single stage, two speed supercharger, as visible on the back of the video merlin. Some later engines would have a two stage supercharger and intercooler. These were used in the likes of later 'Mosquito's ' ( and other aircraft ) where speed was literally a life saver, and engine performance was available at much higher altitudes. Yep, compressed air gets hot, so the intercooler was employed to reduce the intake charge temps to workable levels and reduce the possibility of engine killing pre ignition and detonation from happening. 👍👍

[@jammiedodger629]

@@harrothepilot Thanks for the informative reply mate! :)

[@matthiaspforte7891]

Beuitiful Sound! Amazing!! Historic Classic!!!

[@adelarsen9776]

The sight, sound and smell of Victory. Victory at any cost.

[@jstanbury61]

i just posted the same comment as yourself before reading yours....glad we feel the same way.

[@adelarsen9776]

jstanbury61 And we won too. Can you hear that noise ?? That's the sound of the Leave train pulling out of Brussels station. Next Stop Denmark. All Aboard !!! Mind The Gap !!!

[@jstanbury61]

Good luck Denmark and Holland too!

[@adelarsen9776]

jstanbury61"Let us go forward together" We shall never surrender. Never never never never give in. Broad sunlit uplands..... If necessary for years, if necessary alone.....

[@arfski]

The sight, sound and smell of a post war bankrupt country that would have lost if it wasn't for the Americans, and infighting in Göring's Luftwaffe, but let's not let facts get in the way of misty eyed nostalgia shall we?!

[@jpatt1000]

I like how at the RPM where the rate of on blade moving into the space of the previous one matches the frame rate of the camera, the blade "stops" but then you can catch a glipse of the individual blades flickering in the one spot! Like using a variable stroboscope on a fan!

[@brianvogt8125]

... and at every multiple of the camera's frame rate. While watching American western shows on the TV in the 1960s, I was interested in wagon wheels appearing to rotate slowly in reverse. I quickly worked out that the spoke rate (or a multiple thereof) was slightly slower than the camera's frame rate.

[@machinistmikethetinkerer4827]

What a beautiful piece of machinery and engineering. >now having this vision of having one in my garage and pulling it out once in awhile and running it just for fun

[@soulassassin0g]

I'm sitting here in my 2.7 litre V6 thinking "man, I wish I could remove that period and add six more cylinders.

[@renz1013]

I see your a car person as well

[@usesrnaiyme]

little fun fact: the rolls royce merlin is a 27 liter engine

[@gordonagent7037]

The most beautiful sound the sky has ever heard

[@sgh1963]

Until Concorde.

[@thatjokerperson7062]

Finally a ceiling fan that can keep my room cool

[@kaneroberts8951]

Unreal, unmatched at the time a marvel of engineering no doubt won the air war for Britain and made the P51 what it was for us Americans

[@wilburfinnigan2142]

kaneroberts Ever Production Merlin Mustang had it engine Made in AMERICA by PACKARD, who also made 37,137 FOR THE BRITS !!!!!

[@Elmntsktr]

The movie Dunkirk brought me here. The part where the dad says “Rolls-Royce Merlin engines. The sweetest sound you could hear out here”.

[@rutgerssander]

Wow, that is some seriously impressive stuff. This is friggin awesome!

[@LeonidsStrapOn]

Goddamn, that engine was a masterpiece.

[@nigelhutchinson5332]

What could go wrong. Sweet piece of engineering and craftsmanship.

[@drwho6229]

I DON'T CARE what anybody says that is the best sounding engine in the WORLD!!!! & Built by the best company ROLLS ROYCE. That MERLIN engine I LOVE IT!!!!! 😍😍😍😍. Well the engine has been put in a car a BENTLEY. & it sounds just as BEAUTIFUL in the car as it does in that MAGNIFICENT AIRCRAFT the SPITFIRE! 👍👍👍👍👍👍👏👏👏👏

[@wilburfinnigan2142]

Dr Who You do know FORD/UK built 33,000 of them And Packard in the USA built 55,523 of them don't you ?????? NOT all built by Rolls Royce !!!!

[@aaronmcconkey8151]

you got a 454 in your chevy truck?? thats cute

[@TweakRacer]

... hold my beer

[@allenconner5143]

Damn bro....how you gonna bash a 454 like that? 😂😂🤣 But yes! What an amazing engine that Merlin is!

[@Bankable2790]

Lmaoo

[@spacepope-1]

Who's askin? Jay Leno?

[@peacemaker304]

Your vehicle has wheels? Thats cute

[@Peter43John]

Jay Leno is right: "THERE IS NO REPLACEMENT FOR DISPLACEMENT"👌

[@wilburfinnigan2142]

Peter43John sadly the Merlin was one of the smaller aircraft engines used in WW II Only a trainer like the AT ^ Texan had a smaller engine about 1300 cu in. Merlin was 1650 !!!!

[@hecker4758]

I like how the shutter speed of camera and rpm of fan matched perfectly

[@DIOSpeedDemon]

That is a Beautiful Designed Engine. I used to see them in our American Hydroplane racers , years ago along with our Allison V-12 engines. I really wish America would invest in V-12 auto engines and put them in some of our performance cars. There is nothing like a V-12 singing at FULL ROAR !! 5 stars video *****

[@DIOSpeedDemon]

A McLaren without a F1-V12 is not a McLaren in my opinion.

[@DIOSpeedDemon]

The McLaren F1- I am referring to was made like between 1994 and 1997? . It was powered by a normally aspirated BMW V-12 , producing 682 Brake Horsepower. Those cars if you can find one, start at a Million+ at auction. I liked the fact you could have three seats in the front or just one in the middle. Now that is the Only McLaren worthy of its name and has my respect. The Rest of the line up is just low budgets posers with a McLaren Badge.

[@DIOSpeedDemon]

I had a friend that was familiar with the F1. He said the Transmission was like moving Ratchets thru the gears, but it was solid steel and damn near bulletproof. The Original F1 with the gold engine heat shield and two custom luggage bays is the one I would like to own. The car was carbon fiber, weighed 2500 Pounds soaking wet and had a Bmw v-12 producing 682 horsepower. An average Toyota camry weighs 3900 pounds and a Lamborghini Countach weighs 3600 pounds. My friend claims that driving the F1 is more like a Works GP Motorcycle accelerating more than a car would. A power to weight ratio in the F1 makes it a classic and top of the top. I wish MaClaren would not dilute the brand with v-6 or whatever. Just build a Super F1 and LET THE SAME DESIGNER AS THE ORIGINAL F1, design it. THat would be worth seeing. RH dsd

[@DIOSpeedDemon]

There is nothing like the sound of a Tuned V-12 at Full Power. Nothing on this earth.

[@vladimirdorta6692]

You're right, but there is a reason why: a V-12 sounds wonderful but only if it has a 60-degree vee angle, just like the Merlin. The 1960s Ferrari V-12s made heavenly sounds, not the raspy noise of its modern engines. It's a similar feeling when listening to traditional melodies versus modern atonal music.

[@reggiegrant9487]

the greatest thing rolls royce made

[@wilburfinnigan2142]

reggiegrant,,, BUT.....PACKARD in AMERICA made 55,525 of them 1/3 the total and FORD UK made another 33,000 !!! Facts of history son !!!

[@paulchappell9606]

What a beautiful sound.

[@crazyleyland5106]

I went to Garstang rally, Lancashire years ago, and they had a mounted Merlin like this running, and also a Rolls Royce Griffon (Avro Shackleton engine). Although both of them ran, they had faults that meant they were not suitable for fitting in airworthy aircraft.

[@stevecregger1028]

That wasn't even close to full throttle.

[@bliglum]

You right.. We can see the throttle right there, stick with the yellow handle. Looks like he got up to about half throttle though!

[@vtr0104]

bliglum I don't think they'd risk pushing it. Parts are very rare for them and not even pilots would use full throttle unless it was needed. The key to an engine lasting a long time is constant smooth operation. You use full power to get out of a pinch, but it shouldn't be thought of as an engine's normal operating condition. Some engines are better at it than others though. Ship diesel engines can run a long time at full power because they rotate slowly and because their components tend to be more resilient to forces, but aircraft used light materials. Take care of your engine and it will be good to you for many years :)

[@chopperking1122]

yeah , full throttle , they only rev to about 1400 rpm to make their 1200-odd horsepower .

[@rcdieselrc]

That cut off prop is not large enough to absorb full power. The engine would over speed, so they can't run full power.

[@dcaonoek]

As well as that prop not absorbing the power. Even in the aircraft they can't actually open the throttle fully at ground level. The supercharger(s)(this looks like a single stage supercharger version, although i could be wrong) make full boost, with no pressure relief, all the time; so opening the throttle at ground level creates too high a manifold pressure and will overboost the engine.

[@heatbill1261]

An amazing piece of art.

[@harrystevens3885]

This what every ride along lawn mower should look like .........

[@vicsaunders9710]

What a beautiful engine.

[@Duckyistrippin]

I cant believe people stand that close to the prop.

[@tbrowniscool]

Duckyistrippin Me neither.. directly inline with it, to be fair the metal railings would protect them..

[@rupesh_patel1960]

When he got close I was pooping in my pants 😲😲😲

[@jick747]

Plane of rotation hazard

[@charleschauffe4350]

First thing I thought too! Could be disastrous!

[@dougthompson1598]

Meh, it wouldn't hurt a bit if you got hit

[@mattmccann8805]

THAT is a thing of unutterable beauty.

[@jamestravenetti7970]

Steampunk to the max! I love this old machinery, it's got a life and patina all its own.

[@catapodaca3601]

Beautiful work of engineering.

[@amirz8649]

Imagine you are sitting in back seat of spitfire, this beast just screams in your cabin and you are firing machine gun on German airplanes.

[@PenzancePete]

Back seat of a Spitfire. Where are you from buddy?

[@amirz8649]

@@PenzancePete I'm from Iran 💚. Sorry if I said something wrong

[@randominfo9496]

Nothing but ptsd no one was really prepared for war may they rest in peace

[@christianlemonade5355]

P-51*

[@williamforbes6291]

And your buddy in the hurricane keeps hitting all the targets before your wobbly ass spitfire

[@jwhyte4203]

Fantastic engine....all I could hear was Spitfires. The engine that helped win the war!

[@steviebee1989]

J Whyte You’re forgetting Mustangs and Liberators as they also used this engine. Packhard also made the Merlin.

[@Dayumhesgood]

Hawker hurricanes won the war bellend

[@rickyelich3908]

Stevie Bee ... Liberators used radial engines .

[@johnyoung1128]

@@rickyelich3908 yes, the Pratt & Whitney R1830.

[@wilburfinnigan2142]

@@steviebee1989 You mean LANCASTERS????? they used the merlin Liberators used a PW R1820 Radial !!! DUUUUHH!!!!!!!

[@rentaroos]

Don't you just love it when the camera frame rate is in timming with the propellers

[@anglerden6937]

Nothing beats the sound of a Merlin engine........ apart from 4 bolted to a Lancaster 😀😀👍

[@jeffwalther3935]

I found the engineering of the display/demo engine mounting trailer ALSO fascinating as the Merlin while considering what the owner/builder/collector wanted to use the engine for: spectacular, affordable, portable, mobile indoor/outdoor public historical appreciation displays and demonstrations. But the huge propeller wash and foul startup exhaust are being fought throughout the show by the hapless controller(s). Using that same engineering brilliance to engineer the controls outside the blast area seems easily done. Further, protective eyewear should always be worn directly behind a running engine, imho. This Merlin's a magnificent, masterfully made and restored machine and sheer wonder to behold. Ittssa swords to plowshares transformation, so to speak, farming for future minds.

[@rondini2]

Sweet! The engine that saved the world!

[@rondini2]

***** Obviously you are one of those people who like to make broad assumptions about people you don't know based on minimal info! I rarely watch the History channel. But have a look at all the various types of planes the Merlin was fitted in, and the contribution those planes made. Spitfire, Lancaster, Mustang, Mosquito, Lightening (i think). Built under license by Allison, among others I am sure.

[@rondini2]

***** Whether the Allies were the 'good' guys is not really a point open for debate. I do not know of too many people that would suggest that the Axis forces were good in any way.

[@RobertSmith-nh9nn]

ron hawkins nope the Lightening was not one that had RR Engines, even ones built under licence

[@richardhead5879]

***** Well who in your opinion were the good guys then?

[@fluchterschoen]

connor degreat The Von Trapp Family.

[@clayton8or]

Man that afterfire sounds awesome!

[@principae122]

A wonderful engine with a giantic sound!!!

[@mikecubes1642]

I clapped at the end of this too. they are still impressive engines

[@AcademiadeMotores]

Um verdadeiro monstro da antiga engenharia.

[@justincooper5189]

Although it sounds different (for obvious reasons) than the drag cars nearby, it also sounds good. To me, it's kind of vicious, but also somehow soothing. If that makes any sense to you. Admittedly, I like the sound of both, the drag cars and the aircraft engine. Since this was filmed 9 years ago, I'm hoping nothing bad happened to it, and I hope they put it into something it would originally have gone into, such as a P51 mustang. I know there were other planes that used this engine, but that's one of the most famous aircraft to use it.

[@Vanguard68100]

beautiful souind.....simply beautiful sound

[@johnking5991]

Thinking of the power output of a Merlin in it's latest form, and one that was built new today with electronic fuel injection, computer ignition mapping I wonder what the power output would be attained. I think it would be phenomenal!

[@jaychung8218]

I need that fan for my desk top computer

[@1956MercM260]

Beautiful sounds.

[@slimchancetoo]

Digital moviephotography ------------- amazing how the engine is FULL NOISE but the prop stands almost still.

[@yannhayon2796]

Seller: So how big should your ventilator be? Me: YES

[@riktimmermans5606]

I guess it would become really spectacular if you would take the handbrake of the trailer..............;)

[@steviebee1989]

rik timmermans *off NOT of.

[@JerGol]

I wouldn't have chosen to stand in front of it, I'll tell you that much!

[@GorgeyWoofy-jb3ip]

Love the sound of those engines I want one

[@mozzzz1000]

Best sounding and in general engine in my opinion ever created.

[@nickdanger3802]

"Early production Merlins had numerous problems that led to their reliability being questioned. The leaked their coolants and the cylinder head frequently cracked. However, by version Merlin ‘F’ all major issues had been resolved and the engine officially became Merlin Mark I." History Learning Site UK Rolls Royce Merlin

[@busterdee8228]

The Merlin is often thought of as exceptional engineering but, as you say, there was a tortuous development. RR was reluctant to get into this business. I think those who pushed for it knew RR, once engaged, would be obsessive about getting it right.

[@anmichall]

I'll bet it's awesome at night. thank you

[@rickb9238]

Those engines are a work of art just stationary to me. This engine had a lot to do with keeping England free from German tyranny in WW2.

[@1yoan3]

"Free from tyranny" I'm not sure.

[@rickb9238]

Anthony J. , You could be right, I guess it helped a lot during the war but maybe I was a little too optimistic.🤔

[@bradleygdyjh2]

Santa pod! Awesome I saw loads of engines when I was last there

[@69dieseldog]

I'm curious, what would be the replacement cost of that engine from an insurance point of view? Also, have you ever been approached by museums wanting to purchase your engine for a restoration project?- Thanks for posting.

[@fursty6942]

Dunkirk brought me here

[@Buckets466]

Same

[@ohwell2790]

So, you were a captured German Nazi ,

[@808TheDuck]

Just beautiful!

[@sbalogh53]

I like the strobing effect of the propeller with the camera.

[@fourfortyroadrunner]

WHY is it that everywhere you go, where the "sound of the moment" is part of the experience, the announcer will NOT SHUT UP

[@waswestkan]

Clearly this is a side show demo taking place where a head lining event was taking place that had priority.

[@josephinebennington7247]

There’s something missing....ummm, errrr, yep, got it, a fuselage, couple of wings, tail and rudder, some other stuff and a pilot.

[@METALL_SURGERY]

Great motor! And no smoke!!! Ecological!

[@HANKTHEDANKEST]

I live near several airports, and hear Hurricanes and Spitfires going overhead for airshow things--other, newer fighter planes as well (had a CF-18 lap my block 7 times then tip his wings at me before full-throttling away, that was way cool) but few sound as impressive and authoritative as something with a Merlin in it.

[@curtistucker8059]

Can you imagine? Being a teenager and being strapped to the back of one of those Awesome engines flying through the air. If given the opportunity I would have been there in a heartbeat.

[@DOCTORDROTT]

I think to prop looks odd because of video speed setting. If you set speed high setting, rotating objects like a prop flashes. Strobe effect

[@ebonyblitz1]

I have just finished reading a majority of the comments about this video and the "fact" that the operator never ran it up to full throttle because of... So I challenge you experts to back up your reasoning with some real facts and stop the nonsense! First) The propeller is much smaller diameter for this kind of display usage. Second) The style of the propeller is called a "Variable Pitch Prop" where the angle of the blades can be adjusted from an almost flat position to a fully feathered position (to minimize drag on the aircraft while flying if the motor was damaged/shutdown) Third) Another person commented that the blades could very well be "fixed" and locked down in pitch (something only the owner would know for sure), just enough pitch to produce a load on the engine and airflow across the radiator). Fourth) This video was recorded using a "VIDEO" camera. Video cameras do not have "shutters" inside of them. It is the "FRAME RATE" of the video camera (industry standard with a few exceptions, that is based upon the ability of the human eye to see "motion" from flickering cards or picture frames above a certain frequency, or frames per second, which is 24 FPS), that causes the "wagon wheel affect" or more accurately the "Stroboscopic" affect. Fifth) I have personally stood next to an F-111F while one of its engines were being ran for testing/troubleshooting, with 7 stage afterburner lit up. That would be 25,100 pounds of thrust and the only things holding it were the wheel chocks and full on brakes in the cockpit by the technician. The aircraft never moved during that test!! I've had the opportunity to eye witness these engine test runs on at least a dozen occasions, without incident, during my active duty time in the Air Force. Sixth) Unless you have a tachometer displaying the actual RPM of the motor, it is just a "Guess-timate" people are writing of the RPM of the motor. What are they basing that on? The wind speed blowing back over the "owner"? read first, second and third; the rotational speed of the propeller? Read fourth; Or perhaps, they are judging the engine RPM based upon the sound of the engine? Well, Read Seventh; Seventh) Unless the owner of the video camera recording this video just so happened to have an aftermarket microphone capable of handling upwards of 130-35 dB plugged in, the audio from this video wouldn't even come close to reproducing the actual exhaust volume level that this engine was producing live! No cell phone manufacturer provides that capability for their cell phone mics! Now I do agree with several comments about the engine not "sounding" at its best, a couple of backfires, etc. possibly affecting the full throttle power. But, no one but the operator of the engine really knows if he ran it up to full throttle or not! Although I do concur with and fully agree with the comments about not standing on either side of the plane of rotation of the propeller, the comments about hamburger meat etc. for those standing in front of the engine (30 feet of more) are really just based on ignorance!! BTW, no one had commented about, therefore didn't pay attention to, the fact that the man operating the engine is holding some sort of cable in his hand, that went with him as he backed off from the engine. I can't prove it but I would be willing to bet that it is some sort of a "Kill" of "Dead man" switch that would shut down the engine very quickly in case of any emergency! Jay Leno has the exact same kind of an engine (Merlin 2 stage compressor, V-12) on a transportable engine stand. I had just watched his video about it on youtube last month. He talked about replacing his damaged radiator, how much coolant, etc. the engine contained (self-contained). Except for fuel and batteries, these aircraft engines had to be completely self contained for ease of replacement and to keep damage from spreading to the other engines of a multi-engine aircraft. It would be nice if those who don't know what they are writing about would not write it for the public to read!!

[@FiveCentsPlease]

+ebonyblitz1 You touch on the correct reasons for not being full throttle. The engine note is not close to full throttle if you compare with aircraft on takeoff or high RPM ground test. We don't have a tachometer reading but here is a high-power Spitfire test, with some nice prop torque for extra effect. kzbin.info/www/bejne/oHa3kpqEgpannMk Arguably "full throttle" is War-Emergency Power and that can damage the engine over long periods, so it would not be full throttle. The second reason for not being full throttle is the cut down propeller with a smaller mass. It would be very easy to over-speed the engine at higher throttle settings and things inside will break or begin to come apart. The owner would not want to damage his carefully rebuilt display engine. Here is a nice picture of a connecting rod failure that split a Merlin in half. 1.bp.blogspot.com/-nhr05HgolkM/TnZT9qUAuqI/AAAAAAAAAac/GmkCI4yRJXs/s1600/P9152832.JPG

[@slugslugster9338]

Mighty impressive engine

[@kenkahn138]

They sound incredible when you're sitting in the second seat on a P-51 mustang,, with that monster screaming at full throttle 5 ft in front of you. Best plane ride I ever took

[@kevinchamberlain7928]

Almost 80 years before the Veyron and approx 50% more power!

[@stevanrussell7721]

yes but also about 200% bigger

[@tomlaight]

yeah but much bigger displacement!

[@stevanrussell7721]

which is exactly why it has so much more power

[@jursh3936]

and also triple the liters and probably waaaay less efficiency

[@kevinchamberlain7928]

Jursh Wells You miss the point. It's an ancient antique, which outstrips modern engines for power. Imagine if the same people could use their wisdom, with todays tech?

[@chrismaplethorpe6781]

The greatest engine ever built

[@killsone2]

I love the sound of a merlin at morning.

[@MetroplexDJ]

crazy how the shutter speed syncs up with the prop.

[@hughc023]

Wow!! . . .

[@stephensomersify]

Absolutely NO WHERE NEAR full throttle

[@Jellyflesh]

A 27 liter dont rev lika a chainsaw

[@stephensomersify]

Magnus Engström - I agree

[@robleary3353]

Beautifully beastly!. Nuff said!.

[@davesstuff1599]

What a beautiful engine..