they had computers they were called slide rules

There is still valve train noise, it just sounds different. The sleeve valve actuation mechanism inside the block is hideously complicated, each sleeve has its own gear fed off of other gears. Lots of gear and linear slider pin noise present.

@@GGigabiteM It looks complicated but that's mostly because there are 14 cylinders and they're all driven from the front (shafts pass between the front cylinders to drive the sleeves of the rear ones).

@@nerd1000ify I know how sleeve valve engines work, which is why I said what I did. I've seen exploded diagrams of the Hercules and the Centaurus.

@GGigabiteM it's certainly more complicated than a traditional radial with cam rings, but my point is that the complexity is mostly a matter of the multitude of cylinders. If you look at a single cylinder it's not too bad (in fact there are less parts in the valve train than there would be for a poppet valve single) but they've coped that 14 times around the engine which results in the whole 'Swiss watch' look.

That packard Merlin find made your year glad someone who can appreciate found it

You are so very fortunate to have these wonderful experiences.

Any 4 cylinder detroits for sale?

Well I don't know about you but I had a little more than that

@@garyhurley3271 yes..... I keep going back....... multiple times... (ahem).... now, if you’ll excuse me... NOBODY COME IN HERE!!!

Totally, almost better than the V8 sound. (11:20)

AMEN!

Was sure it was a boy!

That would be glorious

Hahaha

Or have a few neighbors call the police for the same reason and make a report

My brother’s neighbor had an old Plymouth Superbird race car that he would fire up on the morning after the people who lived across the street had a wild party the night before. It could be heard several blocks away

@@nathanpinney4230 Thing is... Sometimes idiots are so stupid they don't understand why the noise and you don't want to bother innocent people

is that for a reason made like that

Jason Dalton

If i could that kinda engin in car, would a van cut it?

Nothing like the sound of round!

JS160LC They getting 1 up and running then? Looks like I’m late to the party there. Time to research 🧐😂

Yc

He’s one of them

o2filmisfun: "No3 engine" OF WHAT ? please enlighten us tiny little laymen what you are talking about. Thanks.

@@stranraerwal I would think he means the 'Handley Page Hasting' which I also worked on. I also worked on the 'Vickers Valletta' and 'Varsity' which were powered by another mark of Hercules. On the Valletta when we did some run ups we had cowlings off and the aircraft ladder tied off on the engine with me up the steps hanging on for dear life while the engine was run up to take off power to check for oil and exhaust leaks we used to do this for the air intake shutter to be checked amongst other systems. I also went many thousands of miles and hours in the air as a 'flying spanner' pulled along by the beautiful Bristol Hercules.

@@stranraerwal AWOL Absent Without Leave a military term meaning not there, absent from duty.

@@tr7v8 : I know what "AWOL" means-thanks.

@@stranraerwal No 3 engine of the Hastings A Handley Page Hastings en.wikipedia.org/wiki/Handley_Page_Hastings

Look up Guy Martin's Merlin video. He talks about what happened to his engine when he took the rev limiter off and it jumped the chocks and ran off across the workshop at full power!

lol yeah

Hell yeah!

Orange flames indicate incomplete combustion, not a rich fuel mixture. Sleeve valve engines are more efficient at getting a more uniform charge in the cylinder, so it tends to burn cleaner.

the downfall of the sleeve-valve engine was their horrible oil consumption ,they were much simpler in terms of their valve gear because they had none , the engine was considerably narrower in diameter than a similar sized non sleeve valve engine

@@wildcoyote34 that's totaly false: in good condition was the oil consumption comparable to the oil consumption from a US radial similar power (and TBO from the Bristol engines was 30% higher as US radials!): i see this myself because i was mecanic on Snecma Bristol Hercules (Noratlas aircraft): this engines (Bristol 739 2040HP) was built in France under license up to 1961...Only early conception Knight engines (use for example on some 30's french cars Panhard Levassor up to the 1938 "Dynamic") was oil eaters and the TBO steep was only 30000km!!!, but the Bristol technology is totaly different and much better!

@leneanderthalien actually it is NOT false at all but completely TRUE , the downfall of the sleeve valve engine was indeed it's oil usage and it's extreme complex gear train ,,and the ever increasing size of more conventional poppet valve engines which were easier to produce and cheaper as well ,,there wasn't any one thing the killed them ,,the sleeve valve engine was one of those things that was pretty much a british only thing just like the usage of water cooled engines only a very few american designed planes had liquid cooled engines ,,european planes were pretty much evenly split half and half

@@wildcoyote34 looks you understand nothing from my explanations, i was mecanic on this engine and known it good...oil consumption was not a issue except on a completly worn out engines...

***** I've just spoken to our operator and he says that the ticking sound is the fuel pump and that he is using "shower of sparks" even though you don't have to. It will probably start anyway. Apparently the primer goes straight into the compressor and we haven't tried to start it using only the carburettor, we're not sure whether it would actually start. Thanks for the comment!

turbocompound p

Johan Christersson l

the air dillution produced from the propeller is so strong that the t° not significantly rise up behind the engine...

Install it in a Plane and it will!!!

for 39 litre engine , this need a large amouth of start pilot! more seriously, on all radial engines who not run (they are dry sump engines), oil did fill the lover cylinders through the piston rings, and this oil need to be evacuated before the engine is able to run clean...

Marcus Keeler it happens at 7:00

But it did.....

Remember, these engines are older than most of the people watching this.

Thing is, there are steps to starting the monsters, it's NOT supposed to start immediately, it spins to pump oil first then a couple attempts and boom.. off she goes. These radial engines were extremely reliable to fly with. There was a saying.. only a round cowl fighter is a true fighter plane lol... another was "if you want to impress your girl in WWII take a pic sitting in a p-51,.. If you want to come back from the battle sit in a p-47... I don't have a hercules but would love one. Fantastic machines I am not downing the p-51 in any way guys n gals, just happen to love the radials and corsairs. p-47s etc... my buddy is p-51 all the way and cannot stand when i tell him it wasn't a great plane, just had a bigger gas tank and if they wanted it to be perfect it should have had a round cowl and same engine as the corsair....whistling death... hehe... of course it was a great plane, but don't tell him i said so lol

Daddski 1 good info that makes sense. How does the oiling system work in them. Since there is a cylinder on the bottom facing down where does the oil drain to and how does it not collect on the bottom (top) of the bottom cylinders piston

@@GLeszega this is a great little video to show basics, they were oil piggies lol, but i can tell you on the miniatures I have (all 5 through 9 cylinder engines on giant scale r/c planes ranging from 80 cc to 450 cc) the top cylinder never caused any issues, oil flow is basically injected then trickles. the videos are better at explaining. The issues i always had were the bottom 2 cylinders loading up and trying to drop out due to excess of fuel/oils. these run very much the same as the big boys jsut smaller. There are two siphon tubes that help with the circulation and moves the liquids from bottom back to top if that makes sense?

lol forgot the url lol kzfaq.info/get/bejne/aNGDnrmW3dmXf6c.html

Would be insane 😂

My thought exactly...I wanted to tell him to lean out the mixture.

You TOW the fuel (on a barge)

Caspar Goodrich don’t know what you’re talking about, airboats are fucking killer