The "Flying Millyard" 5 Litre V Twin first test run
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- Опубликовано: 10 сен 2024
- This is the first test run of my 5 litre V Twin engine based on two Pratt & Whitney R1340 aircraft cylinders, all other parts are hand made including the crankshaft, con rods and crankcase wooden moulds, the crankcases were then cast in aluminium. The engine runs a dry sump with twin pumps, twin SU carbs, points ignition with manual advance / retard and twin plugs per head.
It never ceases to amaze me the stuff that comes out of a Brits shed .
A Brits only happy if he’s messing around in his shed!
I want to see an Allen Millyard and Colin Furze collaboration.
every mfker upvote and like this shit !
Flying Millyard mobility scooter would be the dream
That's a terrible idea! What time?
They would build some really weird stuff.
A Pulse Jet Electric Hybrid.
I like how there's a open gas can on the ground and an header pipe shooting flames right next to it lol. Pretty cool.
Hey, you aren't allowed to watch RUclips videos! BACK TO WORK!
Should be fine. Liquid petrol doesn't really burn all that well and it didn't look to be anywhere near hot enough for there to be any significant fumes.
U envious because u dont have a friggin 5 litre v2???😝 I bet the engine could fit in the WR with some slight mods...
The camera perspective only makes it look like the flames shoot at the gas can.
If you watch the video, the exhaust was hitting the side of the fuel can. Too close for my comfort.
This guy is an absolute legendary genius.
Alan I salute you mate!
Allen, you are one of a kind. You're the only one I know of that continuously builds these incredible and amazing machines. Keep going! I can't wait for your next one.
The torque delivered by a big "lazy" engine like that must be absolutely amazing.
Are used to have a Yamaha 400 Enduro 400 cc single cylinder. A stump riper is what they call them
C est exactement ce que je pensais ça doit arracher les bras
40 years as a machinist and I appreciate all the work it takes to make, restore and maintain these wonderful machines. Thank you for sharing.
Here Here Dave G....couldn't have said it better. This engineer is gifted beyond greatness. Love his work...just magic.
He uses a hand file thats what amazed me
Another beautiful engine built by this genius of a machinist.
This is absolutely bloody brilliant.
In case you're wondering, he made those carburetors by eye, from solid bricks of aluminum, and a lathe. He made the slides inside the carbs too.
I didnt make the carbs on the first engine test video, I made a pair of 50mm smoothbore carbs later on when the bike was completed
you are taking lawnmowing way TOO SERIOUS...
+superwout HAHAHAHA
Your comment made my day
Your point being?
0:30 It's not every day you see someone kick start a 5 litre V-Twin!
In trainers hahaha
He got struck with it just below the knee.
And to do it in sneakers......death wish.
You can see it hurt 🤣
If that thing kicked back then you'd find him on top of uncle Brian's shed roof down the street!
I love those beautifully precise castings of the Pratt & Whitney's heads. Aircraft quality is amazing. :-)
I did part of my apprenticeship on those radials in the Dc3.Dc4 and North American Harvard's
Still love them, so rough but so reliable
A work of art /engineering
The fins were machined...
Yeah I clocked that, too! Where the cooling flanges do a 90 degree! Wow!
@@llewvirtue861 Buffalo Airways is waiting for you! (way too cold for me though!)
Boy, there's a number of badass applications for that: bike, go cart, ultra- light. More.
How does the Morgan corner with that beast in it? I've love to take it for a spin if you ever come to texas.
Morgan motor cars have a S&S V-Twin used on most all Harley clone bikes. The motor is less than 2 litres.
Corner? Whats that? Straight line racin baby!!
Scotty Kilmer scotty can you imagine this thing in a morgan?! Damn that thing would pull hard.
Nice upgrade motor for a Moto Guzzi seeing how the cooling fins on the head face that way.
Lol still laughing fcukin brill...! 😂😂😂
For some reason, old truck engines were usually 71 cubic inches per cylinder, so I assume that old aircraft engines are twice that, or 142ci per cylinder. The math usually adds up pretty close, and here we see it again, 2 cylinders off a radial aircraft engine works out to about 5 liters, close to 300ci. What a beast!
I would love to see that on the front of a new morgan 3 wheeler. A perfect combination. I really think there is a market for these.
I bet this engine weighs almost as much as the Morgan xD
TTKMKaizen It weighs 250lbs :)
+Allen Millyard Woah, that's lighter than I expected. Maybe you should try getting your hands on a junked 3 wheeler.
Two cylinders off a Wright R1300 (a 7 cylinder radial) would be 6086cc... even better still! But the Wright R1300 (or R2600 14cyl brother) is probably as rare as hen's teeth.
this is cool and all but iv seen this kind of idea before and it ends up vibrating the bottom end apart
Those head castings! 😍
This is 75 years ago technology.
Just awesome!
Allan, you are a treasure. 👏
Good thing it doesn't vibrate
Capcatrei as an airplane mechanic, I know that if this guy used the same kind of crank shaft setup as a radial engine that v twin would shake itself to prices in short order, much like a certain popular motorcycle company’s engines did untill the 90’s or so.😂. On an engine like that an odd cylinder is needed to cancel out the worst of the vibrations.
You mean a 3 cylinder ?? !!! Now that I'd like to see !!!
Yep. Good luck rubber-mounting that puppy. It would twist itself right out of the frame.
Capcatrei 🤣
So, to sum up, it isn’t practical. Big surprise. Most of the more interesting and enjoyable things, aren’t. It’s already in a frame and performing, sans the “odd” cylinder. I would think the more befuddling aspect of all this is that it can actually be kick-started, by a _human_ !
Really nice! Not only is running, but it's beautiful! Very impressive, and it started with half a crank!
A V twin with as much displacement as a small block V8.
Yep. Basically, a 302 stuffed into two cylinders. I can't believe that 2 plugs per cylinder are all that is required to get an even burn. Wow.
@@maekong2010 it has two plugs because its an airplane cylinder one plug fouls and you're going down
@@fohdmoco I get what you're saying, Zack. But when you consider the surface area above a 2.5-liter piston, to get an even burn with only two plugs, it is rather surprising. That is what I was referring to. To my way of thinking, the 5-liter twin system might be better served with three plugs per cylinder, but far be it from me to insist on this.
Regardless, a radially-configured (airplane) engine, (from which an HD V-Twin is a "slice") there are typically 5-9 concentric cylinders sharing a complex crank so, generally speaking, more than one cylinder would have to fail to actually bring a plane down. It would just sound like a motor with a hellacious skip, but shouldn't really be a problem to land.
Thus, I believe the dual-plug configuration was designed to assure even burn across the surface of each piston/combustion chamber, (which on airplane engines were/are quite large) as both plugs, if/when there were two, likely fired off the same set of contact points and would fail in unison, anyway. I could be wrong, as I worked this out in my head rather than actually look anything up, which has, at times, ended embarrassingly for me. But I'm what you would call a "risk-taker." ;-)
@@maekong2010 no it would just miss lol but you'd better find a landing strip fast
Maekong Mike Aircraft engines have two of everything (fuel pump, oil pump, magneto, spark plugs, etc.), each perfectly capable of running the engine as designed individually, for redundancy in case of a part failure, so that the engine will still run properly until it can land and have the part replaced. One plug will do the job. Some of those crazy big old Rolls Royce aviation engines had even bigger cylinders and were built the same way. Compressed gasoline vapor burns fast, and these were low-rpm engines in an era when no one gave a tinker's damn about efficiency or emissions, one plug is plenty so long as it sparks.
Some of the particulars,
Flying Millyard ; Engine type, Aircooled pushrod, 2-valve 70-degree V-twin ; Displacement, 4888cc ; Bore x stroke, 146 x 146mm ; Compression ratio, 6:1.
note: the low compression ratio
Modern street motorcycles usually ring in somewhere between 9.5:1 to 13.5:1
That's still amazing good for 4888cc
*raises rpm slightly*
Engine: "This is V-twin to ground control, we have liftoff"
I still think those are the prettiest cylinder heads, ever. I want them on my shelf, sorry Allen, sweet bit of engineering from you, as usual.
I would say those jugs are off a Pratt and Whitney R1340, a 9 cyl radial of 1340 cu ins. 1340÷9×2 = 298 cu ins.
Lots of people call themselves a mechanic. He is a mechanic!
Engineer, more accurately. Mechanics fit ready made components & configure settings. Alan designs, casts, machines, welds & builds from scratch.
you made an engine and it worked beautifully, even low tick over, all your calculations and machining were right, very humbling that, Thank You For Your Genius
The epitome of the true English, eccentric engineer and which sadly today is a dying breed of man
Allen reminds me so much of my sadly late father in law. He was an engineer, apprenticed in the RAF in the forties..he worked on Spiftires, the Red Arrows and so on. For many years he laboured to maintain the various cars my wife and I bought while I passed him spanners and watched in disbelief. On countless occasions he would fix things I thought were beyond repair. No special tool? Make one. Part not in stock? Create one from scratch. Its a joy to see the creative mind at work like this.
You are THE MAN ALLEN. However you come up with this stuff it is just GREAT. Please NEVER STOP.
Magnificent work!, I love it!
5 Liter V Twin of P&W Radials! Holy Cow, I missed that bit 1st time around, what talent, what torque you must be pulling! Impressed.
ALLAN KENNEY hell yeh, custom castings, machine work, its an engineered beast!
Absolutely insane! A 5 Litre V TWIN??? Boggles the mind...
I have a hard time kicking over my 750cc parallel twin, and you guys made kicking over this beast look easy! I'm ashamed of myself, haha.
2020 and this has just popped up on my recommended list. Way to go RUclips algorithm. 😅😅
What a beast!
Those beautiful sensual aircraft heads and cylinders....I I've dreamed about someone (me), building such an engine ever since I calculated displacement of two of those radial cyls and a modest stroke! Alas, I become disabled and...well too much info! Still I am enthralled to see you have built my dream. Massively fantastic!
Alright,I give up.....How the Hell do you get 43 DISlikes on something this freakin' awesome?Or ANY of your builds?I was a machinist/toolmaker for 20+ years and am impressed ALL to hell!Fk'in haters!
+Bowtie41 Because the now 45 dislikes came from people who are not gearheads like us.
+mk84ldb I guess.Their loss.Probably a bunch of fatass couch potatoes who have nuthin' better to do,or are just too stupid to appreciate what all goes into something like this.Keep flippin ur burgers morons!(I apologize to all the decent burger flippers who have no other job options,but do appreciate this type of work!)
+Bowtie41 haters gonna hate, and they'll hate anything they are envious of or don't understand.
I've been a machinist/toolmaker more than 50 years and never saw anything more impressive. Really beautiful work and runs like a champ.
well becaus eits desecration of a beautiful aircarft engiine.
1:45 Man knows that engine isn't going to bits and maim him. Quality craftsmanship.
I do believe the earth moved a tiny bit when this thing was started.
Good job estimating those flywheel cutoffs! It's very clear the engine is well balanced.
Absolutely brilliant....another great engineering masterpiece from Allen!. Cheers, Steve
It runs and idles like Pratt & Whitney too! Very good and talented build my man, good machining too, most people have no idea what is involved in these videos here! Here!
This engine would make Harley riders seriously crap themselves if you pulled up next to them going down the road...
***** Hahahahaha
+MISTERComaToes and the rest of you office pogues havent a clue about us scooter tramps. Go to a race track and watch some of those Harleys blast down the strip. Harleys arent,by design,a crotch rocket. They are fast,high torque tour bikes. Not street dragsters. Try taking your cute comments into a dark biker bar,especially one that seems quiet. THAT's where you find the real deal. Hope you will be hungry.You'll eat every word you speak regarding their bravado shrinking in the face of rice burners. And I dont know of any self respecting scooter tramp that wouldnt sell YOUR sister to get a chance to ride this engine. FYI,I am a former member of the Devils Escorts m/c (early 70;s) , Ghost Riders m/c , Aryans m/c , founding father of the northern Ohio chapter of Avengers m/c and I retired with the Vietnam Vets m/c chapter Z as my last club. So stick to your golf clubs boys, because you clearly know NOTHING of us and our lifestyle.
flip inheck You're a funny guy for a kid.
flip inheck Yeah,...and a lawn mower is probably the ONLY thing you've ever ridden,poser.
flip inheck you're more or less just some sort of moron aren't you? sad
Wow ...... all that work , and that’s the result !!! A motor that does nothing but run . Amazing !!!
I love the flames blowing down on the gas tank!!!
I use the sound of your engines as background music before falling asleep. It leads to some wonderful dreams.
Beautiful, my hat's off to you.
That was awesome!
You are a true genius, and mechanical artist, and you have my utmost respect!
Not only is it a freakin Beautiful Engine it sounds amazing... Bravo I Love It
Ive noticed ......
All your engines always idle perfectly and don't stall after revving.
"Just perfect " !!!!
Wow. Love the way it moves when you rev it. Sounds great. Some more please of you revving it.
The flexing of the engine...amazing! .....and don't worry about the comments concerning the location of the fuel tank...its contents will burn sooner or later....
Millyard you are an artist and a true enthusiast to say the least. Awesome! When "the end" comes it will be folks like you who prevail.
Man its killing me there is no fan on that engine! oil cooler radiator etc. but you know what you are doing I'm sure.
That's what I was thinking. Aircraft engine, high compression, reduced cooling capability, atmospheric density at ground level; all of these things surely contribute to some high heat!
No problem, there is no load on it
Convection around cooling fins is often enough at idle and low speed, low load conditions to keep air cooled engines happy.
This is England, don’t forget. The bigger challenge is to keep the oil from freezing.
Stick that in ya Harley... Bloody work of art, as is all this mans work
Epic! Great stuff man.
Only thing I can say is that man is a proper engineer, no other words neded
I'd love to see some dyno numbers on this.
Aint no replacement for good old displacement.
Well, except for forced induction lol
Can't believe how quiet it is I was expecting a real racket well done.
I wish i was your neighbor.. then i would get the privilage of hearing this beauty run in real life!
Great build and well done for solving the problem of oil collecting in the bottom cylinders of a Pratt & Whitney engine and causing a hydraulic lock!
I hope your shin was ok after the kickstarter hit it!!...that looked fuckin' painful
the ignition was advanced to much! yes it was painful for weeks!
***** I got launched into the sky by an old Indian Chief with a reversed ignition advance cable set up once! A very VERY ungraceful landing followed!
+Stoney Browning Any landing you walk away from is a good landing... :P
or at least limp away from...
still have the scar :) i left the ignition advanced by mistake
The cooling fins on those cylinders are a work of art never mind the excellent engineering job on the bottom end....
You sir, are an engineer. :)
Reminiscent of the old John Deere B’s at any tractor pull.....fires every 20 seconds or so, never stalls and pulls 200% of its weight !!. Agreed......the “open header into the gas can” setup is brilliant!!!!
Such sweet noise!
That will make someone an amazing chopper! What a beautiful engine!
Wow that made me happy for some reason...
That's a proper VINCENT right there! Long time admirer. Exquisite execution.
That BEAST might work well in a pro-streeted Fiat 600 !
A V Twin with the same displacement as the V8 in my truck. Fantastic.
talk about each cylinder fighting each other lol
the SU carbs are so far out that that engine would be fighting itself and making fuck all power
you have to have both carbs setup on a 2 into 1 cable and it needs to be in sync/balanced
It was the first test run and it ran :) I've now made my own carbs from scratch and it now runs really nice :) see several TV programs on catch-up 2017 IOM Classic TT review and The Motorbike show :)
There's some talented guys in the world and you are one.
Don't think I'd have the gas can sitting under the exhaust that's putting out a pretty wicked flame.
You wouldn't build it either.
If you could , you wouldn't make petty comments
@@peterherrington3300
And another candidate for The 2022 Darwin Award has defended the guys putting the fuel can directly in line with the exhaust flow. I know you don't understand this, but pointing out that someone has put a flammable liquid near a source of heat and possibly flames is not petty. It's pointing out what is obvious to the smart people.
That is the most serious sounding V-Twin I have heard to date. It has that beastly growl and furrously war scream on top. Dudes... Seriously... Put it on a bike or something. Then cruise by, at a harley gathering. For one second they will think their bikes are mopeds.
Lmaaaaaaaaaao. IF he does go and do that? let me know cuz.. I wanna be there with my camera to catch the looks on all them (coughs), 'Harley' boat races. Meeeooow. :)
@@1wannabee1it's been on a bike for a while now. Look up the "Flying Millyard" videos
i'd like to fit that to my mobility scooter!
then youd be proper HOTWHEELS
@@julesleon482 lol brooom brooom !! 😂
I don't know if I can call you Allen or Alien because what you create sir is out of this world beautiful...
One beautiful engine. You gonna build a bike around it?
What a beast!! I can just see the most badass cruiser bike! In the world! Awesome!
Soon cruising to a Sturgis rally near you....
I'm impressed. Engines are very precise equipment. It means that even remake or build on base is challenging. Nice working at low RPM and good work continuosity during reducing them.
dude where do i get one of these ??
Well, you start at the age of 2 yrs.; making engine sounds with your Tonka trucks in the sandbox ...
and it just kind of takes its own course from there.
Eventually, you find yourself playing in your own Garage / Machine Shop ...
and you build whatever crazy idea comes to mind. 😉
That creation looked like it was going to rattle its way out the backyard!!!!! Sheer brilliance
Do a 2 into 1 exhaust, you need the scavenging effect to smooth out the idle
draggonhedd doesnt work on a v twin because of the uneven firing intervals
Dam good idea mate 👍
But keep that roaring ripping sound..shredding..
@Casa Del Amo seriously? lol.
Imagine living next door to this guy.. the noise !
Get that in a bike... soon.
It is in one look at his channel
@@Lowry7724 link the video? I can't find this 5 liter v-twin in a bike. They are all smaller v-twins.
A Raleigh chopper would do nicely.
William Mitchell Really, you can't find it? Strange. Search up 'Flying Millyard' - it'll be there.
William Mitchell ruclips.net/video/X1mnoVN7VDk/видео.html
I think Aunty Tracey's cooking is behind Allen's creative Flashes .
Roughly 1:05 and again 1:50: flames coming out of the exaust towards the open gas can just beneath it. Me: I’ll never wonder again why men’s average life span is considerably shorter than women 😂
Haha! LOL!
L
O
L
😂😂
Contact...and chocks away! Amazing. I want Allen as my next door nieghbour.
that thing is going to overheat! the cooling fins are not large enough to cool it without the aid of propeller
it runs fine and has now covered 3500 miles with no overheating issued at all.
Wow
Allen Millyard 3500 mi. in what. you didn't wedge that thing into a bike did you? you're crazy man.
how many hp you think?
bah...
+Don Hill
The creator claims he used R-1340 cylinder heads, but they're way too big and don't match the cooling fin pattern or layout of R-1340 cylinder heads. I think they're R-1830 cylinder heads as they closer match the size and the cooling fin patterns and the painting scheme. Take a look and compare:
R-1430:
en.wikipedia.org/wiki/File:Pratt_and_Whitney_Wasp.jpg
R-1830:
en.wikipedia.org/wiki/File:R-1830_IWM.JPG
If we do calculations based on an R-1830, this engine could put out anywhere from 114 HP to 192 HP depending on the compression ratio and timing. I think it'd make a great dune buggy engine, it'd be a bit scary in a motorcycle from the crazy torque.
Wow, just wow! What a fantastic hand built creation
Made on a drill press and some sand paper
i love how all of Mr. Millyard's creations run so well. Genius ? some would say.
Good thing nobody put the open fuel tank next to the exhaust outlet...
That thing is a monster ready to eat everyone around it - including it’s creator. You could tell he delicately revved it at his own peril - just a bit - then backing away quickly before it became hungry…
Carb sync not very good...
+scowell needs an equalizing tube between the carbs. great engine, the fin detail by p&w is awsome
The way she bounces when gunned, she could start an earthquake! Bloody brilliant.
An open exhaust spitting flames at a petrol can without it's lid glad they don't live next door
fuggin look
He is a genius.. And a very humble guy. 👍🍀🇮🇪
why would 24 people dislike this?
+Sir Jammer His neighbors perhaps.
bill boyd
true!
Terry Bortz
good call!
Yea amazing, maby some like to walk
an engine that makes one smile......great job
If you shoot flam3s at your gas can it makes it more exciting...you have really made yourself a work of art you can be proud of that licence it .I would like to see this go into production.
a complete work of art ...
Oh my God, that engine sound is insane!