Great engines, my father used to service these, and fit from brand new to aircraft in WW2, they used to come in huge crates and covered in lots of greased paper wrapping. To think of all those parts spinning round at high revs is amazing, so many finely machined parts and castings , a marvel of design and production that has little comparison even in modern days..

I can’t help but have a huge respect for these gents that, not only dedicate their time to keep these alive, but also show them to the world for all to see. Thank you 👏👏

Radial engines sound bad ass for sure!

I admire these guys passion and dedication to restoring these magnificent pieces of history Thank you

The Hercules was also the engine used on the Bristol Beaufighter, a twin-engine aircraft used both as a night fighter and as a torpedo bomber. My dad was an RCAF officer who flew with RAF Squadrons made up of Commonwealth crews, and he and his navigator spent many hundreds of hours flying at night, often in bad weather, armed with four 20mm cannon and ten .303 machine guns, as well as the early Marks of A.I. (Airborne Intercept, later to be called RADAR). The pilot's position in the nose of the Beau put the pilot almost literally between the propeller tips on either side, and the noise level at full throttle must have been pretty high. The Beau was, according to various accounts, not a very forgiving aircraft. As "Moose" Fumerton, who was Canada's most senior night fighter officer once put it, the Beau was a difficult aircraft to fly well. It's relatively slow top speed put it at a disadvantage in some cases, but its ruggedness and reliability, combined with the awesome amount of gun-power carried, earned it the respect of many night fighter pilots. As soon as a version of the DeHavilland Mosquito armed with 20mm cammon (4 under the nose, typically) and much improved AI/Radar became avaliable, both RAF and RCAF night fighter squadrons converted to the Mossie, which was "nippier" and also more than 100 mph faster. The "TorBeau" torpedo bomber version was used to good effect in the Med, and also by the RAAF. Beaufighters were also used as ground-attack aircraft in the Desert War against the Axis, and flew in both India and Burma in the same role, shooting up Japanese Army troop trains and formations. The Hercules engine, when throttled back, was very quiet, and the Japanese nicknamed the Beaufighter "Whispering Death." My dad's younger brother was originally trained as a Halifax pilot, but was remustered ostensibly as a navigator, but in practice acted as wireless op, assistant engineer as well as navigator. His Halifax was shot down over Nuremburg in early August 1943. there were no survivors and the crew are buried in a Commonwealth War Graves Cemetery near Munich. He was 5 days short of his 21st birthday, and was halfway through his second "tour" in Bomber Command. So, plenty of family history associated with the Hercules engine, and with the Handley-Page Halifax. Thanks for sharing this.

Nice to see and hear; thanks for keeping the Bristol Hercules alive. Our Mk216 is a regular on the display circuit in the UK along with Merlins and others.

I was there....and took my own video......but mine is not even close to being as good as this one is. Kudos to you Rainhill1829 for keeping that day alive for EVERYONE.

Love this - glad you put the handbrake on the trailer even with the stubby prop! My grandfather was ground crew onn RAF Halifax B IIIs so your did me a lovely bit of remembrance in hearing this, and sure hope to see one flying again in my lifetime!

Vickers Varsity had two of these. Can remember operating them at Oakington during 5FTS training in 1973.

As much as i like the engine ,im well impressed by the starter motor!!

That engine is beautiful!!!! Thanks for sharing this!!!!

Having stumbled upon this museum while driving south from Calgary a few years ago, I can say it's well worth a visit, if for no other reason than to see their mighty Lancaster!

Awesome sound, well done

Made me remember my service in the RAF back in the early fifties, working on these engines on 48 Sqn Hastings and 52Sqn Valetas, Transport Command, DSS section Changi. all with Herculese engines (maybe thats why my hearing is stuffed) but loved these engines and the aircraft. After demob' I worked on Merlins on Yorks with Dan Air engineering base, Lasham airfield, near Alton Hants. Thanks you for the memories.

Sounds just as good as the Merlin, British engineering at its best!

No poppet valves, no springs, no pushrods, no rocker arms all you need is mighty fine sleeves.

I can only imagine what 4 of those running at full tilt would sound like

I hope to see the Halifax flying again. Bristol Hercules also powered the Beaufighter.

what a sweet sound to my ears!!

came here for sleeve valve sounds, wasn't disappointed!

Thats a nice demo setup.

Wonderful to see another gearhead also be a fan of Last Exile. I recognized that opening tune immediately!

I known well the last version from the Hercules, a improved type 739, 2040hp , built in France by SNECMA up to 1964, to fit the military transporter Nord 2501 Noratlas: this engine was very reliable, low consumption (30% better TBO as another type radial same power, excellent burn efficiency, with deep blue flames at exhausts visible in the night), and unlike what some ignorants think, on a good condition Bristol sleeve valve engine, was the oil consumption not significative higher as on a classic radial similar power, and this engine was not "overcomplicated" (looks only like): use less parts as a classic radial...

Awesome project. I wish you the best and thank you for posting

That bit of Last Exile soundtrack was a very nice touch

It was in the Blenheim before the rest of the aircraft mentioned came into service

This is amazing an engine that’s almost purely exhaust note

i love listening to these old engines coming back to life

Good luck with your restoration !!

I've seen an animation on how these engines work, very unique design to say the least. =)

Very cool running engine.

Bloody Brilliant!

I'm surprised that other companies didn't try that Sleeve-Valve design! Maybe Bristol had a Patent!

Amazing engine probably have materials and engineering precision to make these a very reliable lump the sleive valve always seemed like answer for plane engine saving a good 9 inches of power sapping drag by not having valves at top of head . Always thought side valves might be good solution with good supercharger

This is what we relied on for thrust before jets. Sheer horse power from an extreme piston engine.

Amazing thing they even run. They have more gears than a Rolex

FANTASTIC!!!!!

Officers: The fighters are coming! The fighters are coming! Pilots start the engines.... Pilots: companions has been a pleasure work with you

OMG!! So loud! So powerful!! So manly! Let's go bomb something!!!

In that kind of setting, I would have a cage around the propeller.

So you straight piped your 6.0? Thats cute.. >.> hold by beer

All I can focus on is all those people right in the prop hazard area. If one of those blades lets loose, there will be a lot of casualties.

Nice!

VERY GOOD ENGINE BRISTOL from Brasil congratulations

Skookum choocher!

Ok let's hear it for the starter motor

Could run on much lower octane fuel than other designs. Also a smaller frontal profile for less drag. It lacked the hot spots of poppet valve designs. Exhaust valves need high octane fuel to keep from pre igniting fuel air mixture. It’s heads were easy but the gears to run sleeves were not. Nova Scotia.

Good to know that the Halifax along with the Sterling is remembered in Canada. Always overlooked by "Historians " who constantly praise the Lancaster and Spitfire with sparse mention of our other two heavy bombers and also the "humble" Hurricane that outnumbered the Spitfire .Best of luck with Your restoration.

I see 14 chopper engines . Lovely . Good old English engineering !

Stoned af and watching it at various playback speed, what a trip

5:01 holy smokes, look at all the smokes at idle!

The starter motor sounds happy.

Great British Engineering,, what happened to those companies who made these engines and its components,,,

Как всегда здорово, очень хорошие видео, успехов вам и вашему каналу. Привет из Беларуси.

VERY GOOD MACHINE , BRASIL.OK.

Met some ww2 A20 pilots in the US in 2008/9...they were very impressed with the RAAF Beaufighters and commented how quiet they were compared to their aircraft...

AMS GTR 3000HP 4.0 V6

Kaboooooooooom!

That guy is probably addicted to the exhaust high at this point

Actually, I’m certain that Hercules weren’t used either in Sunderland’s or Wellingtons. The Latter were powered by Pegasus engines, as were the Sunderlands, bur some marks had Pratt & Whitney’s. However, the Hercules was used in Beaufighters, Hastings, Vikings and I think Varsities. Whereas Seafuries and Ambasadors had Centaurus 18-cylinders. Napier Sabres were also Sleeve-Valve Motors, and possibly the most powerful engines of the lot. (Liquid-cooled, twin-crankshaft, flat-12 cylinder x 2.)

I have one of these, really

Could run on lower octane suitable aromatic fuels. Lack of poppet exhaust valve hot spots allowing so. Junk head design allowed for reduced diameter for lower drag profiles.

I live in the UK and this year will be hosting some American and Canadian families when they each visit their relatives graves in England. They served their country in WW2 RCAF Bomber Command. I would like to show them one of these engines running on a trailer - it was the failure of these engines that cost their lives over England in 1943 and 1944. One hit by lightning and the another shot up by the Luftwaffe while returning from France Mine Laying. Stirling Mk III and Halifax Mk III. In total 8 RCAF Families - Is there any way they could see this engine running either here in England or in Canada?

Está ali um tuga com a Cruz de Cristo!!!

I am just wild about that nine eight time signature, jigs on steroids! Incidentally, how do these sleeves work in the engine?

❤️❤️❤️

Sounds like a big cammed v8 lol

It chooches nice.

Sure is cold blooded, but sounds great

This is such a great sounding (and running) engine. If I'm not mistaken, as they run, and carbon builds up around the ports, they compress more, correct? Also, what octane level of fuel is used, and is it ethanol free? I'd run it ethanol free if at all possible. Also, whoever you all have do the timing for these deserves a medal. That takes some serious skill and even more serious patience.

How messed up when you consider the work and money spent on these machines meant to kill fellow humans. We are an intelligent but savage species.

Could they run the sea fury with one of these?

Would you ever do a hundred percent power for a minute or two video.

Is this happening at Nanton Ab.?

Does it normally take that long to light a fire?

Just saw a video if an abandoned house and one of these engines was in the basement

Who's lancaster was that in the back ground and was she a runner?

I that a liquid cooled radial?

the Stirling bombers, of which NONE are left. not one. how sad is that. all we have are just bits of it here and there, but even then not enough to put one together by a long shot. how very sad.

I love old world war planes even any vintage war planes just beautiful I thank you for hunting for the pieces of the Halifax bombers also 4:41 come on girl you can do it

the lancaster used merlins :/

She is simply Venus ,,,,,, Roman goddess of love and beauty!!!!!!! Holy Shit !!!!! Thank You Rainhill1829

The original Lancaster’s has Merlin engines not the Hercules. Some later versions

ESSE MOTOR é 2 TEMPOS 🤔

Does anyone know if these were ever turbocharged and so in what application and how well did it work?

I thought the beaufighter had them to

At 3 am

Mehr Schub!!!

if the prop comes off lots of dead canidan,s!

How many people said in their head, “what up gurl?” at .59 seconds?

Talk about lead poisoning bonanza

haha, i sure hope for their sake, that ain't leaded gas!

Nice engine eh?

Half Power??...with no prop...put something it can drive...you might have maybe opened half throttle...but no where near half Power...it's free spinning driving nothing

Wenn die im ww2 auch so schlecht gestartet sind , frag ich mich wie die denn ww2 gewinnen konnten

Put that on your lawn mower and you would have your yard cut in about a minute...

Single rope barrier, spinning prop, and little kids maybe 20 feet away. Maybe an investment in a better solid barrier is a better choice for safety guys.

the speaker that's the one cleverer of Trump brothers? xD