Recreation of the Merlin Engine

[@howardbowen-RC-Pilot]

All built before CAD and computers calculators etc. Just slide rules and pencil and paper. Genius creation.

[@elypie1965]

What a fantastic piece of engineering, very well done on the animation.

[@AlvaroMetelo]

Beautiful engine

[@jonsmith4669]

Its been said before but its true this engine IS truly poetry in motion, when you think 36 years before. cars had two cylinder engines and aircraft had yet to fly... its a miracle and we needed one real bad with what was to come...... some say the war was won because of the MERLIN....

[@MrGuvEuroman]

And to think they had forged cranks, forged rods, forged pistons, dry sumped, two stage superchargers to compensate for less oxygen higher up, even the valves were filled with solid sodium, so if they got too hot the sodium melted and took the heat away from the valves stopping them over heating or burning up, all in 1940’s.

[@johnf.walton9452]

Very clever animation !

[@somebloke13]

Stunning! 👏👌👍

[@HistoricAeroEngines]

Excellent work! Brings the workings to life.

[@FiveCentsPlease]

Great work! It would nice to see the DB and Jumo series also.

[@GeorgeRon]

Where is the supercharger?

[@ROCKETRICKYH]

You've got the propeller blades backwards!

[@Rustsamurai1]

Sublime. Can I fit in my lawnmower?

[@Surestick88]

That's a very modern looking prop.

[@TheMissing62]

The shape of the Rotol blade is wrong; is reversed.

[@vidanochao-lauronascimento8254]

Top....motor .....the best of the best....all times

[@BobFeiring]

No. Not very reliable. The R-2800 is far more robust and powerful. The metlin is a maintenance pig.

[@kyleshillitto2346]

Awesome

[@recondrone6826]

valve timing must be a lot of fun..

[@MarsFKA]

Quite easy with that simple drive train. There are only a few timing marks to line up. If you want to see an eye-watering drive train, have a look at this: kzbin.info/www/bejne/lafVp5imlL6Cn9E

[@das250250]

That video was way too short , I would have liked a more detailed slow version of the components moving

[@nadronnocojr]

Folks today couldn’t build a Merlin of yester year

[@mrl22222]

well they could, but why? It was great engineering by 1940's standards by todays standards it would be underpowered for it's weight and size, unreliable and pretty inefficient. This engine got about 1hp/lb. a Modern engine gives you 3 hp/lb and even as heavily stressed as the mrelin was still has a service interval that is almost 5x a merlin. Don't get me wrong, I love them. But 70 years of engineering has improved piston engines

[@DLWELD]

Wonder how the air gets in? Where's the intake system/

[@kolbpilot]

No timing belts for this thing.

[@MarsFKA]

As a mechanic - now retired - I am delighted that car engine manufacturers have ditched belts and gone back to chains. Bloody belts could get a mechanic having loud conversations with himself.

[@andypdq]

@@MarsFKA I'd be glad if they ditched belts and chains, gear drives are far more reliable than either.

[@MarsFKA]

@@andypdq I never saw a camshaft drive chain fail. If they require attention they let someone know by getting progressively noisier, but they still work, which is the whole idea.

[@andypdq]

​@@MarsFKA I've fixed lots of these with timing failures, the tensioner fails suddenly and the chain goes slack then jumps a tooth or three on the right hand camshaft, so the piston then hits the intake valves and destroys the cylinder head, big bill! It's a Ford Europe 2.4 diesel : www.asttools.co.uk/image/cache/catalog/product/AST5105action2-800x800.jpg

[@MarsFKA]

@@andypdq I guess you have lived in a bigger world than I did.

[@dsbraid]

Is 5hete something wired happening with the prop blades? Seems like they are going backwards, trailing edge first.

[@rattywoof5259]

Is that about a 3:1 reduction between the crankshaft and the prop shaft?

[@jamesharrison7469]

Yes, About 2:1 to keep the tips of the propeller below the speed of sound as the plane moves through the air in flight.

[@davem5333]

Propeller shaft runs about 42% of crankshaft speed.

[@MaksymFishman]

Link to the blueprints with high rez?

[@ZX600E7]

Good animation. The prop is wrong way round. Flat side should be leading.

[@gedanggoreng1593]

I dont even know that merlin had 4 valves each cylinder

[@MichaelPolymhxanos]

Why middle cylinders in each bank go the same phase? Why not an 120 degree EVERY cylinder diferrence like all modern 6 cylinder engines?

[@pietroseven8228]

Exactly what I wanted to asking for. But when I look in the drawing it seems to be correct.

[@MichaelPolymhxanos]

@@pietroseven8228 After I wrote the question, I thought of it more. It is correct, I was wrong. In 6 in line cylinder engines, the one half 3 cylinder is the MIRROR of the other 3 cylinder half, and so middle cylinders go up and down the same. This configuration is the most symmetrical, and the most vibration cancelling. Each 120 degree 3 cylinder alone, although primary balanced, produces a secondary tendency to ''swipe left''. Having a MIRROR 3 cylinder with the exact opposite tendency, cancels all, and SO the video is correct after all.

[@andypdq]

@@MichaelPolymhxanos The straight six has perfect balance, no heavy crank counterweights or balance shafts required. Because straight sixes have perfect balance they can be made very big, most big truck engines are straight sixes. V12s are just two straight sixes running on a common crank. Unlike the V6 or V8, which have to have specific angles between the banks to run smoothly, a V12 can have any angle between the banks which is convenient. This is why large inline aero engines tend to be V12s.

[@hotironaircraftshop]

Is this model detailed enough that someone with the right CNC equipment could produce a working replica?

[@FiveCentsPlease]

+ John Brenneise Many years ago a company was selling a kit to build a 1/4 scale Merlin. From what I can tell, you got raw castings and still had to do a lot machining to build something. www.quarterscalemerlin.com/

[@rtwpsom2]

No. This is a graphics model. Good for movies and games. Not a CAD model.

[@snoopytheace4487]

now do the Allison v12.

[@ubpit]

Nice 👍👍👍👍👍👍

[@ivanjavierescalante7415]

Fijense en el sistema de distribución

[@georgecunningham7916]

Just watched another video on utube where the commentator was saying all munitions workers where unskilled? This is obviously the brilliant new generation who stay at school until into there 20s still sponging of there unskilled parents?

[@edwinchorimbo8224]

Does anyone have the blueprints of this motor?

[@FiveCentsPlease]

+ Edwin González Drawings are out there, but Rolls Royce still owns the license and rights to their engines.

[@RaimoJackson]

Valves barely move...

[@hussinking4900]

Nice engine f my QQ

[@myintmyat2697]

WaiT, This is not SpaceX...... : /